From Jose_Luis_Ferreira_@dei.uc.pt Sun Feb 16 09:57:35 1997 Received: from lucy.cs.wisc.edu (lucy.cs.wisc.edu [128.105.2.11]) by sea.cs.wisc.edu (8.6.12/8.6.12) with ESMTP id JAA14399 for ; Sun, 16 Feb 1997 09:57:10 -0600 Received: from cs.uwa.oz.au (bilby.cs.uwa.oz.au [130.95.1.11]) by lucy.cs.wisc.edu (8.7.6/8.7.3) with SMTP id JAA08488 for ; Sun, 16 Feb 1997 09:57:04 -0600 (CST) Received: from (parma.cs.uwa.oz.au [130.95.1.7]) by cs.uwa.oz.au (8.6.8/8.5) with SMTP id VAA29988; Sun, 16 Feb 1997 21:24:45 +0800 Message-Id: <199702161324.VAA29988@cs.uwa.oz.au> From: Jose_Luis_Ferreira_@dei.uc.pt To: bento@dei.uc.pt, bribeiro@dei.uc.pt, cpf@isr.isr.ist.utl.pt, cris@pscs2.irmkant.rm.cnr.it, dague@ura1507.univ-paris13.fr, dressler@informatik.tu-muenchen.de, eco@garfield.fe.up.pt, fv@ccr.jussieu.fr, gpl@di.fct.unl.pt, Helder.Coelho@di.fc.ul.pt, helder@mercurio, J.A.Self@cbl.leeds.ac.uk, lm@fct.unl.pt, lmp@di.fct.unl.pt, mantaras@iiia.csic.es, Manuela_Veloso@gama.prodigy.cs.cmu.edu, medsker@email.cas.american.edu, mig@ncc.up.pt, Nuno.Mamede@inesc.pt, oleary@almaak.usc.edu, pb@di.fct.unl.pt, pbrazdil@ncc.up.pt, rosa@inf.ufrgs.br, shapiro@cs.buffalo.edu, stefano@kant.irmkant.rm.cnr.it, Takeo.Kanade@cs.cmu.edu, tom.mitchell@cs.cmu.edu, wxm+@f.gp.cs.cmu.edu, Yves.Kodratoff@lri.fr, Afcet.Administration@ibp.fr, ai-stats@watstat.uwaterloo.ca, alife@cognet.ucla.edu, annrules@fit.qut.edu.au, cogpsy@neuro.psy.soton.ac.uk, colt@cs.uiuc.edu, connectionists@cs.cmu.edu, dietmar@cognition.iig.uni-freiburg.de, genetic-programming@cs.stanford.edu, hybrid-list@cs.ua.edu, ml@ics.uci.edu, mlnet@csd.abdn.ac.uk, nat@ura1507.univ-paris13.fr, neuron-request@CATTELL.PSYCH.UPENN.EDU, nl-kr@snyside.sunnyside.com, nonlin-l@list.nih.gov, reinforce@cs.uwa.edu.au, scivw-request@hitl.washington.edu, www@sigart.acm.org, webmaster@ai.iit.nrc.ca, ai-cbr@mailbase.ac.uk, ai-sges@mailbase.ac.uk Subject: CFP- Workshop on Outdoors Robotics [connectionists] Date: Fri, 14 Feb 1997 17:24:55 +0100 Call for Participation The Workshop on Outdoors Robotics OR'97 http://alma.uc.pt:80/~epia97/OR97.html Under the auspices of the Portuguese Conference on Artificial Intelligence (EPIA'97) Coimbra, Portugal, October 6-9, 1997 October, 8 Coimbra University, Physics Building Workshop Objectives ------------------- Over the last two decades there has been a significant research effort in mobile robotics. This has resulted in that we today have technologies for construction of mobile delivery systems for constrained environments. Significant progress is still needed before these systems can be employed in more complex settings, the basis technology is however available. Based on this success more recent work has been directed towards use of robotics for outdoor applications. The application potential is much more vast, but the challenges are also much tougher. Typical applications range from semi-autonomous wheelchairs, and support for car-drivers all the way to autonomous operation in unstructed environments for tasks like mine clearance, etc. In an outdoor environment there is first of all a need for more general techniques for locomotion as the traditional wheeled vehicle only is suited for application in well structured environments. Another major area of research is perception, as the environment no longer can be engineered to suit the available technology. This implies that new sensory modalities must be employed like radar and GPS, or alternatively that well known sensory modalities for in-door application must be made much more adaptive to cope with the rich perceptual input. Finally the issue of planning and integration becomes much harder as the set of possible scenaria is much richer and the set of unexpected situations to be considered becomes much larger. An entirely new set of challenges must thus be addressed in the construction of robots for out-door applications. This workshop will feature presentations of a range of techniques that have been developed or are under development for this area of applications. OR'97 welcomes papers in English on the following topics: * Locomotion techniques * Perception * Planning and Integration * Sensors for outdoors navigation * Navigation * Representation Workshop Format and Attendance Requirements ------------------------------------------- The format of this one-day workshop will encourage interaction and discussion between researchers. Papers in English, with no more than 15 pages are welcome. There will be about 8 to 10 technical presentations (half an hour each), invited talks and a panel on Applications. Attendees should be registred to the main EPIA conference. Submit 3 copies of the full paper to the address below: Prof. Helder Araujo Instituto de Sistemas e Robotica - Dept. Engenharia Electrotecnica Polo II-Pinhal de Marrocos 3030 COIMBRA PORTUGAL English is the official language of the workshop. Important Dates: --------------- May, 31: submissions due July, 15: notifications sent September, 8: final versions due Workshop Chairs: Henrik I. Christensen Helder Araujo Center for Autonomous Systems, University of Coimbra/ ISR Stockholm Coimbra Organizing Committee: Jorge Dias Urbano Nunes Jorge Batista Paulo Peixoto From harnad@cogsci.soton.ac.uk Sun Feb 16 19:31:47 1997 Received: from lucy.cs.wisc.edu (lucy.cs.wisc.edu [128.105.2.11]) by sea.cs.wisc.edu (8.6.12/8.6.12) with ESMTP id TAA19877 for ; Sun, 16 Feb 1997 19:31:43 -0600 Received: from TELNET-1.SRV.CS.CMU.EDU (TELNET-1.SRV.CS.CMU.EDU [128.2.254.108]) by lucy.cs.wisc.edu (8.7.6/8.7.3) with SMTP id TAA15486 for ; Sun, 16 Feb 1997 19:31:41 -0600 (CST) Received: from TELNET-1.SRV.CS.CMU.EDU by telnet-1.srv.cs.CMU.EDU id aa23188; 16 Feb 97 18:52:18 EST Received: from DST.BOLTZ.CS.CMU.EDU by TELNET-1.SRV.CS.CMU.EDU id aa23186; 16 Feb 97 18:34:03 EST Received: from DST.BOLTZ.CS.CMU.EDU by DST.BOLTZ.CS.CMU.EDU id aa03257; 16 Feb 97 18:33:34 EST Received: from CS.CMU.EDU by B.GP.CS.CMU.EDU id aa06492; 16 Feb 97 9:53:20 EST Received: from acacia.sucs.soton.ac.uk by CS.CMU.EDU id aa12708; 16 Feb 97 9:52:50 EST Received: from cogsci.soton.ac.uk (neuro.psy.soton.ac.uk [152.78.195.85]) by acacia.sucs.soton.ac.uk (8.8.2/server) with SMTP id OAA09101; Sun, 16 Feb 1997 14:48:46 GMT Received: from cogsci.ecs.soton.ac.uk (cogsci.soton.ac.uk) by cogsci.soton.ac.uk (5.x/SMI-SVR4) id AA25307; Sun, 16 Feb 1997 14:46:37 GMT From: Stevan Harnad Date: Sun, 16 Feb 97 14:44:27 GMT Message-Id: <20512.9702161444@cogsci.ecs.soton.ac.uk> To: cogneuro@ptolemy-ethernet.arc.nasa.gov, colorcat@BrownVM.Brown.edu, connectionists@cs.cmu.edu, PSYCOLOQUY Subject: Feature Creation: BBS Call for Commentators Below is the abstract of a forthcoming BBS target article on: THE DEVELOPMENT OF FEATURES IN OBJECT CONCEPTS by Philippe G. Schyns, Robert L. Goldstone & Jean-Pierre Thibaut This article has been accepted for publication in Behavioral and Brain Sciences (BBS), an international, interdisciplinary journal providing Open Peer Commentary on important and controversial current research in the biobehavioral and cognitive sciences. Commentators must be BBS Associates or nominated by a BBS Associate. To be considered as a commentator for this article, to suggest other appropriate commentators, or for information about how to become a BBS Associate, please send EMAIL to: bbs@cogsci.soton.ac.uk or write to: Behavioral and Brain Sciences Department of Psychology University of Southampton Highfield, Southampton SO17 1BJ UNITED KINGDOM http://www.princeton.edu/~harnad/bbs/ http://www.cogsci.soton.ac.uk/bbs/ ftp://ftp.princeton.edu/pub/harnad/BBS/ ftp://ftp.cogsci.soton.ac.uk/pub/bbs/ gopher://gopher.princeton.edu:70/11/.libraries/.pujournals If you are not a BBS Associate, please send your CV and the name of a BBS Associate (there are currently over 10,000 worldwide) who is familiar with your work. All past BBS authors, referees and commentators are eligible to become BBS Associates. To help us put together a balanced list of commentators, please give some indication of the aspects of the topic on which you would bring your areas of expertise to bear if you were selected as a commentator. An electronic draft of the full text is available for inspection with a WWW browser, anonymous ftp or gopher according to the instructions that follow after the abstract. ____________________________________________________________________ THE DEVELOPMENT OF FEATURES IN OBJECT CONCEPTS Philippe G. Schyns Robert L. Goldstone Jean-Pierre Thibaut Psychology Dept. Psychology Dept. Psychology Dept. Glasgow University Indiana University Universite de Liege Glasgow G12 8QB UK Bloomington IN 47405 4000 Liege BELGIUM philippe@psy.gla.ac.uk rgoldsto@ucs.indiana.edu jthibaut@vm1.ulg.ac.be KEYWORDS: Concept learning, conceptual development, perceptual learning, features, stimulus encoding ABSTRACT: According to an influential approach to cognition, our perceptual systems provide us with a repertoire of fixed features as input to higher-level cognitive processes. We present a theory of category learning and representation in which features, instead of being components of a fixed repertoire, are created under the influence of higher-level cognitive processes. When new categories need to be learned, fixed features face one of two problems: (1) High-level features that are directly useful for categorization may not be flexible enough to represent all relevant objects. (2) Low-level features consisting of unstructured fragments (such as pixels) may not capture the regularities required for successful categorization. We report evidence that feature creation occurs in category learning and we describe the conditions that promote it. Feature creation can adapt flexibly to changing environmental demands and may be the origin of fixed feature repertoires. Implications for object categorization, conceptual development, chunking, constructive induction and formal models of dimensionality reduction are discussed. -------------------------------------------------------------- To help you decide whether you would be an appropriate commentator for this article, an electronic draft is retrievable from the World Wide Web or by anonymous ftp or gopher from the US or UK BBS Archive. Ftp instructions follow below. Please do not prepare a commentary on this draft. Just let us know, after having inspected it, what relevant expertise you feel you would bring to bear on what aspect of the article. The URLs you can use to get to the BBS Archive: http://www.princeton.edu/~harnad/bbs/ http://www.cogsci.soton.ac.uk/bbs/Archive/bbs.schyns.html ftp://ftp.princeton.edu/pub/harnad/BBS/bbs.schyns ftp://ftp.cogsci.soton.ac.uk/pub/bbs/Archive/bbs.schyns gopher://gopher.princeton.edu:70/11/.libraries/.pujournals To retrieve a file by ftp from an Internet site, type either: ftp ftp.princeton.edu or ftp 128.112.128.1 When you are asked for your login, type: anonymous Enter password as queried (your password is your actual userid: yourlogin@yourhost.whatever.whatever - be sure to include the "@") cd /pub/harnad/BBS To show the available files, type: ls Next, retrieve the file you want with (for example): get bbs.schyns When you have the file(s) you want, type: quit From ataxr@IMAP1.ASU.EDU Mon Feb 17 01:47:08 1997 Received: from lucy.cs.wisc.edu (lucy.cs.wisc.edu [128.105.2.11]) by sea.cs.wisc.edu (8.6.12/8.6.12) with ESMTP id BAA26016 for ; Mon, 17 Feb 1997 01:46:49 -0600 Received: from cs.uwa.oz.au (bilby.cs.uwa.oz.au [130.95.1.11]) by lucy.cs.wisc.edu (8.7.6/8.7.3) with SMTP id BAA20957 for ; Mon, 17 Feb 1997 01:46:46 -0600 (CST) Received: from (parma.cs.uwa.oz.au [130.95.1.7]) by cs.uwa.oz.au (8.6.8/8.5) with SMTP id OAA18248; Mon, 17 Feb 1997 14:00:57 +0800 Message-Id: <199702170600.OAA18248@cs.uwa.oz.au> From: Asim Roy To: cogneuro@ptolemy-ethernet.arc.nasa.gov, alife@cognet.ucla.edu, annrules@fit.qut.edu.au, cogpsy@cogsci.soton.ac.uk, colt@cs.uiuc.edu, connectionists@cs.cmu.edu, genetic-programming@cs.stanford.edu, gann-list@cs.iastate.edu, hybrid-list@cs.ua.edu, ml@ics.uci.edu, mlnet@csd.abdn.ac.uk, neuron-request@CATTELL.PSYCH.UPENN.EDU, nonlin-l@list.nih.gov, reinforce@cs.uwa.edu.au, cneuro@bbb.caltech.edu, colorcat@BrownVM.Brown.edu, psyc@pucc.princeton.edu Cc: asim.roy@asu.edu Subject: Does plasticity imply local learning? And other questions [connectionists] Date: Sun, 16 Feb 1997 22:57:11 -0500 (EST) A predominant belief in neuroscience is that synaptic plasticity and LTP/LTD imply local learning. It is a possibility, but it is not the only possibility. Here are some thoughts on some of the other possibilities (e.g. global learning mechanisms or a combination of global/local mechanisms) and some discussion on the problems associated with "pure" local learning. The local learning idea is a very core idea that drives research in a number of different fields. I welcome comments on the questions and issues raised here. This note is being sent to many listserves. I will collect all of the responses from different sources and redistribute them to all of the participating listserves. The last such discussion was very productive. It has led to the realization by some key researchers in the connectionist area that "memoryless" learning perhaps is not a very "valid" idea. That recognition by itself will lead to more robust and reliable learning algorithms in the future. Perhaps a more active debate on the local learning issue will help us resolve this issue too. A) Does plasticity imply local learning? The physical changes that are observed in synapses/cells in experimental neuroscience when some kind of external stimuli is applied to the cells may not result at all from any specific "learning" at the cells. The cells might simply be responding to a "signal to change" - that is, to change by a specific amount in a specific direction. In animal brains, it is possible that the "actual" learning occurs in some other part(s) of the brain, say perhaps by a global learning mechanism. This global mechanism can then send "change signals" to the various cells it is using to learn a specific task. So it is possible that in these neuroscience experiments, the external stimuli generates signals for change similar to those of a global learning agent in the brain and that the changes are not due to "learning" at the cells themselves. Please note that scientific facts/phenomenon like LTP/LTD or synaptic plasticity can probably be explained equally well by many theories of learning (e.g. local learning vs. global learning, etc.). However, the correctness of an explanation would have to be judged from its consistency with other behavioral and biological facts, not just one single biological phenomemon or fact. B) "Pure" local learning does not explain a number of other activities that are part of the process of learning!! When learning is to take place by means of "local learning" in a network of cells, the network has to be designed prior to its training. Setting up the net before "local" learning can proceed implies that an external mechanism is involved in this part of the learning process. This "design" part of learning precedes actual training or learning by a collection of "local learners" whose only knowledge about anything is limited to the local learning law to use! In addition, these "local learners" may have to be told what type of local learning law to use, given that a variety of different types can be used under different circumstances. Imagine who is to instruct such local learners which type of learning law to use? In addition to these, the "passing" of appropriate information to the appropriate set of cells also has to be "coordinated" by some external or global learning mechanism. This coordination cannot just happen by itself, like magic. It has to be directed from some place by some agent or mechanism. In order to learn properly and quickly, humans generally collect and store relevant information in their brains and then "think" about it (e.g. what problem features are relevant, problem complexity, etc.). So prior to any "local learning," there must be processes in the brain that examine this "body of information/facts" about a problem in order to design the appropriate network that would fit the problem complexity, select the problem features that are meaningful, etc. It would be very difficult to answer the questions "What size net?" and "What features to use?" without looking at the problem in great detail. A bunch of "pure" local learners, armed with their local learning laws, would have no clue to these issues of net design, generalization and feature selection. So, in the whole, there are a "number of activities" that need to be performed before any kind of "local learning" can take place. These aforementioned learning activities "cannot" be performed by a collection of "local learning" cells! There is more to the process of learning than simple local learning by individual cells. Many learning "decisions/tasks" must precede actual training by "local learners." A group of independent "local learners" simply cannot start learning and be able to reproduce the learning characteristics and processes of an "autonomous system" like the brain. Local learning, however, is still a feasible idea, but only within a general global learning context. A global learning mechanism would be the one that "guides" and "exploits" these local learners. However, it is also possible that the global mechanism actually does all of the computations (learning) and "simply sends signals" to the network cells for appropriate synaptic adjustment. Both of these possibilities seem logical: (a) a "pure" global mechanism that learns by itself and then sends signals to the cells to adjust, or (b) a global/local combination where the global mechanism performs certain tasks and then uses the local mechanism for training/learning. Note that the global learning mechanism may actually be implemented with a collection of local learners!! The basic argument being made here is that there are many tasks in a "learning process" and that a set of "local learners" armed with their local learning laws is incapable of performing all of those tasks. So local learning can only exist in the context of global learning and thus is only "a part" of the total learning process. It will be much easier to develop a consistent learning theory using the global/local idea. The global/local idea perhaps will also give us a better handle on the processes that we call "developmental" and "evolutionary." And it will, perhaps, allow us to better explain many of the puzzles and inconsistencies in our current body of discoveries about the brain. And, not the least, it will help us construct far better algorithms by removing the "unwarranted restrictions" imposed on us by the current ideas. Any comments on these ideas and possibilities are welcome. Asim Roy Arizona State University From becker@curie.psychology.mcmaster.ca Mon Feb 17 13:34:25 1997 Received: from lucy.cs.wisc.edu (lucy.cs.wisc.edu [128.105.2.11]) by sea.cs.wisc.edu (8.6.12/8.6.12) with ESMTP id NAA05041 for ; Mon, 17 Feb 1997 13:34:10 -0600 Received: from TELNET-1.SRV.CS.CMU.EDU (TELNET-1.SRV.CS.CMU.EDU [128.2.254.108]) by lucy.cs.wisc.edu (8.7.6/8.7.3) with SMTP id NAA01575 for ; Mon, 17 Feb 1997 13:33:19 -0600 (CST) Received: from TELNET-1.SRV.CS.CMU.EDU by telnet-1.srv.cs.CMU.EDU id aa24226; 17 Feb 97 11:57:39 EST Received: from DST.BOLTZ.CS.CMU.EDU by TELNET-1.SRV.CS.CMU.EDU id aa24224; 17 Feb 97 11:44:11 EST Received: from DST.BOLTZ.CS.CMU.EDU by DST.BOLTZ.CS.CMU.EDU id aa03804; 17 Feb 97 11:43:30 EST Received: from RI.CMU.EDU by B.GP.CS.CMU.EDU id aa13583; 16 Feb 97 20:59:47 EST Received: from [130.113.218.37] by RI.CMU.EDU id aa09618; 16 Feb 97 20:58:18 EST Received: from localhost by curie.psychology.mcmaster.ca via SMTP (951211.SGI.8.6.12.PATCH1502/951211.SGI) id UAA13978; Sun, 16 Feb 1997 20:58:15 -0500 Date: Sun, 16 Feb 1997 20:58:15 -0500 (EST) From: Sue Becker Reply-To: Sue Becker To: connectionist , comp-neuro@smaug.bbb.caltech.edu, cogneuro@ptolemy-ethernet.arc.nasa.gov Subject: COMPUTATIONAL NEUROSCIENCE POSTDOCTORAL POSITION AVAILABLE Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII COMPUTATIONAL NEUROSCIENCE POSTDOCTORAL POSITION AVAILABLE Department of Psychology McMaster University A postdoctoral position is open in the Psychology Department of McMaster University, Hamilton, Ontario. A multidisciplinary approach will be taken to develop biologically plausible models of hippocampal and neocortical memory systems. Projects will include developing simulations of cortical-cortical and subcortical-cortical interactions during learning and information storage. In addition to our focus on processing in hippocampal-cortical systems, we are also investigating and modelling the role of cortico-thalamic back-projections. Research projects will be conducted in close collaboration with R. Racine, a neuroscientist, S. Becker, a computational modeller, S. Haykin, an electrical engineer, and G. Gerstein, a computational neuroscientist. The primary goal of this collaborative effort is to build powerful learning algorithms in neural networks which are based on rules suggested by both memory research and physiology research (e.g. LTP work). Racine's laboratory has recently provided the first demonstrations of LTP in the neocortex and cortico-thalamic connections in chronic preparations. The rules that apply to LTP induction in these systems are quite different from those determined for the hippocampus. An optional component of this postdoctoral position would be participation in further experimental investigations of neocortical LTP in either slice or in vivo preparations. This project is funded by a collaborative research grant from the Natural Sciences and Engineering Research Council of Canada to R. Racine, G. Gerstein, S. Haykin and S. Becker. Please send curriculum vitae, expression of interest, and the names and e-mail or phone numbers of three references to Ron Racine at racine@mcmail.cis.mcmaster.ca From Gerhard.Paass@gmd.de Mon Feb 17 20:18:41 1997 Received: from lucy.cs.wisc.edu (lucy.cs.wisc.edu [128.105.2.11]) by sea.cs.wisc.edu (8.6.12/8.6.12) with ESMTP id UAA13359 for ; Mon, 17 Feb 1997 20:18:36 -0600 Received: from TELNET-1.SRV.CS.CMU.EDU (TELNET-1.SRV.CS.CMU.EDU [128.2.254.108]) by lucy.cs.wisc.edu (8.7.6/8.7.3) with SMTP id UAA10396 for ; Mon, 17 Feb 1997 20:18:34 -0600 (CST) Received: from TELNET-1.SRV.CS.CMU.EDU by telnet-1.srv.cs.CMU.EDU id aa24239; 17 Feb 97 12:07:00 EST Received: from DST.BOLTZ.CS.CMU.EDU by TELNET-1.SRV.CS.CMU.EDU id aa24229; 17 Feb 97 11:46:36 EST Received: from DST.BOLTZ.CS.CMU.EDU by DST.BOLTZ.CS.CMU.EDU id aa03823; 17 Feb 97 11:45:51 EST Received: from CS.CMU.EDU by B.GP.CS.CMU.EDU id aa20185; 17 Feb 97 5:50:56 EST Received: from [129.26.8.90] by CS.CMU.EDU id aa18767; 17 Feb 97 5:50:03 EST Received: from sein.gmd.de (sein) by mail.gmd.de with SMTP id AA25139 (5.67b8/IDA-1.5 for ); Mon, 17 Feb 1997 11:49:45 +0100 Received: by sein.gmd.de id AA02418 (5.67b/IDA-1.5 for connectionists@cs.cmu.edu); Mon, 17 Feb 1997 11:48:15 +0100 Date: Mon, 17 Feb 1997 11:48:15 +0100 From: Gerhard Paass Message-Id: <199702171048.AA02418@sein.gmd.de> To: connectionists@cs.cmu.edu Subject: CfP: Interdisciplinary College IK'97 Cc: paass@borneo.gmd.de X-Sun-Charset: US-ASCII Call for Participation Interdisciplinary College IK'97 This conference aims at establishing a link between four subjects: biology of neurons, neural information science, artificial intelligence and cognitive psychology. Leading scientists of each field provide introductory courses on each subject and give an in-depth account of current developments. In addition six interdisciplinary courses between each of the areas are offered, where two scientists of each field give an integrative view. Conference Language: German Time: March 15.-22.th 1997, Location: Guenne/Moehnesee, close to Dortmund/Germany Deadline for Registration: Feb. 28th (payment of conference fees) WWW: http://www.informatik.uni-ulm.de/ni/ik97.html From georg@ai.univie.ac.at Mon Feb 17 20:18:49 1997 Received: from lucy.cs.wisc.edu (lucy.cs.wisc.edu [128.105.2.11]) by sea.cs.wisc.edu (8.6.12/8.6.12) with ESMTP id UAA13363 for ; Mon, 17 Feb 1997 20:18:41 -0600 Received: from TELNET-1.SRV.CS.CMU.EDU (TELNET-1.SRV.CS.CMU.EDU [128.2.254.108]) by lucy.cs.wisc.edu (8.7.6/8.7.3) with SMTP id UAA10399 for ; Mon, 17 Feb 1997 20:18:38 -0600 (CST) Received: from TELNET-1.SRV.CS.CMU.EDU by telnet-1.srv.cs.CMU.EDU id aa24376; 17 Feb 97 14:10:49 EST Received: from DST.BOLTZ.CS.CMU.EDU by TELNET-1.SRV.CS.CMU.EDU id aa24374; 17 Feb 97 13:59:31 EST Received: from DST.BOLTZ.CS.CMU.EDU by DST.BOLTZ.CS.CMU.EDU id aa03885; 17 Feb 97 13:59:23 EST Received: from EDRC.CMU.EDU by B.GP.CS.CMU.EDU id aa25143; 17 Feb 97 12:09:21 EST Received: from [192.76.244.84] by EDRC.CMU.EDU id aa05783; 17 Feb 97 12:08:19 EST Received: (from georg@localhost) by jedlesee.ai.univie.ac.at (8.8.4/8.8.4) id SAA21667 for connectionists@cs.cmu.edu; Mon, 17 Feb 1997 18:06:53 +0100 (MET) From: Georg Dorffner Message-Id: <199702171706.SAA21667@jedlesee.ai.univie.ac.at> Subject: Open position: NN for time series processing To: connectionists@cs.cmu.edu Date: Mon, 17 Feb 1997 18:06:52 +0100 (MET) X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit The Neural Networks Group at the Austrian Research Institute for Artificial Intelligence in Vienna, Austria, has an immediate opening for a position on Neural Networks for Time Series Processing and Economic Modeling as part of the larger initiative "Adaptive Models in Economics and Management Science" (http://www.wu-wien.ac.at/am/am.html). The goal is to investigate the capabilities of recurrent neural nets in modeling economic processes, including their use in multi-agent simulations, with a focus on learning algorithms, adaptivity, and mixture-of-expert approaches. Required background: - knowledge in practical time series processing (e.g. ARMA, state space models, etc.) - basic knowledge in neural networks and programming - Ph.D. degree or comparable doctorate - research experience Desired background: - publications in the field - basic knowledge in economic modeling - basic knowledge in statistics - experience in a UNIX environment - basic understanding knowledge of German The position will be available for up to three years, with a monthly salary of about 18.000 ATS (approx. 1500 US$) per month, 14 times a year, after tax. Interested applicants should apply by email, mail or fax, no later than March 5, 1997 at the address below. Include a short vita, a list of publications, and any other information demonstrating your qualification. Send applications to: Georg Dorffner Austrian Research Institute for Artificial Intelligence Schottengasse 3 A-1010 Vienna phone: +43-1-53532810 fax: +43-1-5320652 email: georg@ai.univie.ac.at This position is funded by the Austrian Fonds zur Foerderung der wissenschaftlichen Forschung. From reggia@cs.umd.edu Mon Feb 17 20:18:51 1997 Received: from lucy.cs.wisc.edu (lucy.cs.wisc.edu [128.105.2.11]) by sea.cs.wisc.edu (8.6.12/8.6.12) with ESMTP id UAA13366 for ; Mon, 17 Feb 1997 20:18:44 -0600 Received: from TELNET-1.SRV.CS.CMU.EDU (TELNET-1.SRV.CS.CMU.EDU [128.2.254.108]) by lucy.cs.wisc.edu (8.7.6/8.7.3) with SMTP id UAA10405 for ; Mon, 17 Feb 1997 20:18:43 -0600 (CST) Received: from TELNET-1.SRV.CS.CMU.EDU by telnet-1.srv.cs.CMU.EDU id aa24758; 17 Feb 97 18:27:50 EST Received: from DST.BOLTZ.CS.CMU.EDU by TELNET-1.SRV.CS.CMU.EDU id aa24754; 17 Feb 97 18:16:00 EST Received: from DST.BOLTZ.CS.CMU.EDU by DST.BOLTZ.CS.CMU.EDU id aa04024; 17 Feb 97 18:15:28 EST Received: from CS.CMU.EDU by B.GP.CS.CMU.EDU id aa28893; 17 Feb 97 15:12:10 EST Received: from avion.cs.umd.edu by CS.CMU.EDU id aa23266; 17 Feb 97 15:11:43 EST Received: by avion.cs.umd.edu (8.8.5/UMIACS-0.9/04-05-88) id PAA16491; Mon, 17 Feb 1997 15:11:29 -0500 (EST) Date: Mon, 17 Feb 1997 15:11:29 -0500 (EST) From: "James A. Reggia" Message-Id: <199702172011.PAA16491@avion.cs.umd.edu> To: .edu@cs.umd.edu, Connectionists@cs.cmu.edu, ai-medicine@vuse.vanderbilt.edu, neuron-request@CATTELL.psych.upenn.edu, reggia@cs.umd.edu Subject: New Book: Neural Modeling of Brain and Cognitive Disorders NEURAL MODELING OF BRAIN AND COGNITIVE DISORDERS edited by James A Reggia (Univ. Maryland), Eytan Ruppin (Tel Aviv Univ.) & Rita Sloan Berndt (Univ. Maryland) During the last few years there has been a rapidly increasing interest in neural modeling of brain and cognitive disorders. This multidisciplinary book presents a variety of such models in neurology, neuropsychology and psychiatry. A review of work in this area is given first. Computational models are then presented of memory impairment in Alzheimer's disease, functional brain reorganization following a stroke, patterns of neural activity in epilepsy, disruption of language processes in aphasia and acquired dyslexia, altered cognitive processes in schizophrenia and depression, and related disorders. 425pp (approx.) 1996 981-02-2879-1 US$86 Ordering Information: Please e-mail or fax your order and VISA/MC/AMEX/Diners Club Card Number or alternatively enclose a cheque/bank draft and send to your nearest World Scientific Office: USA: World Scientific Publishing Co. Inc. 1060 Main Street, River Edge, NJ 07661, USA Toll-free: 1-800-227-7562 Toll-free fax: 1-888-977-2665 E-mail: wspc@wspc.com -UK: World Scientific Publishing Co. Ltd. 57 Shelton Street, Covent Garden, London WC2H 9HE, UK Tel: 44-171-836-0888 Fax: 44-171-836-2020 E-mail: sales@wspc2.demon.co.uk -Singapore: World Scientific Publishing Co. Ltd. Farrer Road P.O. Box 128, Singapore 912805 Tel: 65-382-5663 Fax: 65-382-5919 From akin@dec001.cmpe.boun.edu.tr Tue Feb 18 00:49:13 1997 Received: from lucy.cs.wisc.edu (lucy.cs.wisc.edu [128.105.2.11]) by sea.cs.wisc.edu (8.6.12/8.6.12) with ESMTP id AAA15961 for ; Tue, 18 Feb 1997 00:49:00 -0600 Received: from cs.uwa.oz.au (bilby.cs.uwa.oz.au [130.95.1.11]) by lucy.cs.wisc.edu (8.7.6/8.7.3) with SMTP id AAA14461 for ; Tue, 18 Feb 1997 00:48:54 -0600 (CST) Received: from (warabi.cs.uwa.oz.au [130.95.1.13]) by cs.uwa.oz.au (8.6.8/8.5) with SMTP id NAA12534; Tue, 18 Feb 1997 13:16:15 +0800 Message-Id: <199702180516.NAA12534@cs.uwa.oz.au> From: "H. Levent AKIN" To: cogneuro@ptolemy-ethernet.arc.nasa.gov, alife@cognet.ucla.edu, annrules@fit.qut.edu.au, cogpsy@cogsci.soton.ac.uk, colt@cs.uiuc.edu, connectionists@cs.cmu.edu, genetic-programming@cs.stanford.edu, gann-list@cs.iastate.edu, hybrid-list@cs.ua.edu, ml@ics.uci.edu, mlnet@csd.abdn.ac.uk, neuron-request@cattell.psych.upenn.edu, nonlin-l@list.nih.gov, reinforce@cs.uwa.edu.au, cneuro@bbb.caltech.edu, colorcat@brownvm.brown.edu, psyc@pucc.princeton.edu Subject: CFP: ISCIS XII [connectionists] Date: Mon, 17 Feb 1997 16:45:48 +0200 FIRST CALL FOR PAPERS ISCIS XII THE TWELFTH INTERNATIONAL SYMPOSIUM ON COMPUTER AND INFORMATION SCIENCES October 27-29, 1997, Antalya, Turkey Organized by Bogazici University, Istanbul,Turkey Conference Chair Selahattin Kuru, Turkey Honorary Chair Erol Gelenbe, USA Program Committee H. Levent Akin (Co-Chair), Turkey , M. Ufuk Caglayan (Co-Chair), Turkey, L. Akarun, Turkey,V. Akman, Turkey, E. Alpaydin, Turkey, K. Altinel,Turkey, E. Arkun,Turkey, Z. Bayram, Turkey, S.Bilgen, Turkey, B. R. Bryant, USA, A. Dogac,Turkey, J. Eder, Austria, C.Ersoy, Turkey, S.Fdida, France, J. M. Fourneau, France, D. Garlan, USA, C. Ghezzi, Italy,M. Gokmen, Turkey , L.Grandinetti, Italy , T. Gundem, Turkey, A. Guvenir, Turkey, U. Halici,Turkey, E. Harmanci, Turkey, F. Hoffman, Germany, K. Inan, Turkey, B. Maglaris , Greece, S. Neftci, Turkey, M. Nivat, France, S. Oktug, Turkey, R. Onvural, USA, B. Orencik, Turkey, C.Ozturan, Turkey, V. Paschos,France, J. F. Perrot, France, P. Quinton, France, M. Raynal, France, E. Rosti, Italy, A.C.C. Say, Turkey, G. Serazzi, Italy, J. Sole-Pareta, Spain, K. Sloan, USA, R. Smeliansky, Russia, A. Stafylopatis, Greece, M. Tayli, Turkey, H. Tijms, Netherlands, O. Tosun, Turkey, F. Yarman-Vural, Turkey, N. Yalabik, Turkey, N. Yucel, Turkey Local Organizing Committee Duygu Arbatli, Turkey, A. Taylan Cemgil, Turkey, Albert Levi, Turkey , Mete Yilmaz, Turkey Advisory Board M. Baray, Turkey, S. Eren, Turkey, E. Gelenbe, USA, E. Harmanci, Turkey, Y. Karsligil, Turkey, S. Kuru, Turkey, E. Ozkarahan, Turkey, F. Yarman-Vural, Turkey, U. Yarimagan, Turkey -------------------------------------------------------------------- ISCIS XII is the twelfth of a series of meetings that have brought together computer scientists and engineers from many countries. This year's conference will again be held in a resort hotel in the beautiful Mediterranean city of Antalya, in a region rich in natural as well as archeological, architectural and historical sites. During the symposium, there will be invited speeches and special sessions on different aspects of high speed computer networks, software engineering and artificial intelligence. ---------------------------------------------------------------------- TOPICS OF INTEREST * Computer Networks * Parallel Processing and Parallel Algorithms * Theoretical Computer Science * Computer Architecture and Systems * Artificial Intelligence * Neural Networks * Computer Graphics * Image Processing and Pattern Recognition * Real Time Computing * Performance Evaluation * Software Engineering * Databases * Programming Languages * Distributed Systems * Formal Methods * Computer Vision * Computational Mathematics * Information Retrieval ---------------------------------------------------------------------- PAPER SUBMISSION Please submit four copies (one original and three copies) of the full paper (in English) limited to 8 pages to the below address. Electronic submission of papers is encouraged. Papers in Postscript or Word for Windows formats are welcome. ISCIS XII Department of Computer Engineering Bogazici University Bebek, Istanbul, 80815 Turkey Tel: +90 (212) 263 1540 ext. 1323 Fax: +90 (212) 287 2461 email: iscis@www.cmpe.boun.edu.tr http://www.cmpe.boun.edu.tr/iscis.html anonymous ftp: www.cmpe.boun.edu.tr/iscis Paper Format on A4 or letter size paper with single space, single column, one inch margins on all four sides. The first page should have a two inch margin at the top. Centered at the top of the first page should be the complete title of the paper, author(s), affiliation(s), mailing and e-mail address(es), then the abstract, not exceeding 15 lines, followed by the text. In an accompanying letter, the following should be included: full title of the paper, author name(s), mailing address(es), telephone and fax. numbers and e-mail address(es) of the author(s) indicating the presenter and technical session names (lst and 2nd choices) to be selected from the list of topics given above. Accepted papers will be published in the symposium proceedings. The symposium welcomes proposals for invited sessions. Important Dates : * Papers Due : May 1, 1997 * Notification of Acceptance : July 15, 1997 * Camera Ready Papers : August 15, 1997 From zhangw@redwood.rt.cs.boeing.com Tue Feb 18 05:56:23 1997 Received: from lucy.cs.wisc.edu (lucy.cs.wisc.edu [128.105.2.11]) by sea.cs.wisc.edu (8.6.12/8.6.12) with ESMTP id FAA17635 for ; Tue, 18 Feb 1997 05:56:18 -0600 Received: from TELNET-1.SRV.CS.CMU.EDU (TELNET-1.SRV.CS.CMU.EDU [128.2.254.108]) by lucy.cs.wisc.edu (8.7.6/8.7.3) with SMTP id FAA17832 for ; Tue, 18 Feb 1997 05:56:17 -0600 (CST) Received: from TELNET-1.SRV.CS.CMU.EDU by telnet-1.srv.cs.CMU.EDU id aa24929; 17 Feb 97 20:31:45 EST Received: from DST.BOLTZ.CS.CMU.EDU by TELNET-1.SRV.CS.CMU.EDU id aa24927; 17 Feb 97 20:15:37 EST Received: from DST.BOLTZ.CS.CMU.EDU by DST.BOLTZ.CS.CMU.EDU id aa04101; 17 Feb 97 20:15:27 EST Received: from CS.CMU.EDU by B.GP.CS.CMU.EDU id aa04370; 17 Feb 97 19:48:32 EST Received: from [130.42.28.16] by CS.CMU.EDU id aa25898; 17 Feb 97 19:47:40 EST Received: from splinter.boeing.com by mailgate1.boeing.com (SMI-8.6/SMI-SVR4) id QAA08236; Mon, 17 Feb 1997 16:46:59 -0800 Received: from redwood.rt.cs.boeing.com by splinter.boeing.com with SMTP (1.37.109.16/16.2) id AA124206629; Mon, 17 Feb 1997 16:43:49 -0800 Received: from rivendell.network-A by redwood.rt.cs.boeing.com (5.x/SMI-SVR4) id AA22005; Mon, 17 Feb 1997 16:47:54 -0800 Received: by rivendell.network-A (SMI-8.6/SMI-SVR4) id QAA04330; Mon, 17 Feb 1997 16:48:02 -0800 Date: Mon, 17 Feb 1997 16:48:02 -0800 From: Wei Zhang Message-Id: <199702180048.QAA04330@rivendell.network-A> To: connectionists@cs.cmu.edu Subject: Job: machine learning at Boeing X-Sun-Charset: US-ASCII **Outstanding Machine Learning Researcher needed** The Boeing Company, the world's largest aerospace company, is actively working research projects in advanced computing technologies including projects involving NASA, FAA, Air Traffic Control, and Global Positioning as well as airplane and manufacturing research. The Research and Technology organization located in Bellevue, Washington, near Seattle, has an open position for a machine learning researcher. We are the primary computing research organization for Boeing and have contributed heavily to both short term technology advances and to long range planning and development. BACKGROUND REQUIRED: Machine Learning, Knowledge Discovery, Data Mining, Statistics, Artificial Intelligence or related field. RESEARCH AREAS: We are developing and applying techniques for data mining and statistical analyses of diverse types of data, including: safety incidents, flight data recorders, reliability, maintenance, manufacturing, and quality assurance data. These are not areas where most large R&D data mining efforts are currently focused. Research areas include data models, data mining algorithms, statistics, and visualization. Issues related to our projects also include pattern recognition, multidimensional time series, and temporal databases. We can achieve major practical impacts in the short-term both at Boeing and in the airline industry, which may result in a safer and more cost-effective air travel industry. A Ph.D. in Computer Science or equivalent experience is highly desirable for the position. We strongly encourage diversity in backgrounds including both academic and industrial experiences. Knowledge of machine learning, statistics, and data mining are important factors. Experience with databases and programming (C/C++, JAVA, and Splus) is desirable. APPLICATION: If you meet the requirements and you are interested, please send your resume via electronic e-mail in plain ASCII format to zhangw@redwood.rt.cs.boeing.com (Wei Zhang). You can also send it via US mail to Wei Zhang The Boeing Company PO Box 3707, MS 7L-66 Seattle, WA 98124-2207 Application deadline is April 30, 1997. The Boeing Company is an equal opportunity employer. From ruderman@salk.edu Tue Feb 18 18:01:46 1997 Received: from lucy.cs.wisc.edu (lucy.cs.wisc.edu [128.105.2.11]) by sea.cs.wisc.edu (8.6.12/8.6.12) with ESMTP id SAA27646 for ; Tue, 18 Feb 1997 18:01:36 -0600 Received: from TELNET-1.SRV.CS.CMU.EDU (TELNET-1.SRV.CS.CMU.EDU [128.2.254.108]) by lucy.cs.wisc.edu (8.7.6/8.7.3) with SMTP id SAA02574 for ; Tue, 18 Feb 1997 18:01:32 -0600 (CST) Received: from TELNET-1.SRV.CS.CMU.EDU by telnet-1.srv.cs.CMU.EDU id aa26665; 18 Feb 97 14:55:23 EST Received: from DST.BOLTZ.CS.CMU.EDU by TELNET-1.SRV.CS.CMU.EDU id aa26663; 18 Feb 97 14:43:20 EST Received: from DST.BOLTZ.CS.CMU.EDU by DST.BOLTZ.CS.CMU.EDU id aa04704; 18 Feb 97 14:42:46 EST Received: from RI.CMU.EDU by B.GP.CS.CMU.EDU id aa26122; 18 Feb 97 14:39:25 EST Received: from takony.salk.edu by RI.CMU.EDU id aa21471; 18 Feb 97 14:38:25 EST Received: from takony (localhost [127.0.0.1]) by takony.salk.edu (8.6.12/8.6.9) with SMTP id LAA15721 for ; Tue, 18 Feb 1997 11:38:21 -0800 Sender: ruderman@valaga.salk.edu Message-ID: <330A052D.745F682F@salk.edu> Date: Tue, 18 Feb 1997 11:38:21 -0800 From: Dan Ruderman Organization: The Salk Institute X-Mailer: Mozilla 3.0Gold (X11; I; Linux 1.2.13 i586) MIME-Version: 1.0 To: connectionists@cs.cmu.edu Subject: Preprint available Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit The following preprint is available: Origins of scaling in natural images Daniel L. Ruderman One of the most robust qualities of our visual world is the scale-invariance of natural images. Not only has scaling been found in different visual environments, but the phenomenon also appears to be calibration independent. This paper proposes a simple property of natural images which explains this robustness: They are collages of regions corresponding to statistically independent ``objects''. Evidence is provided for these objects having a power-law distribution of sizes within images, from which follows scaling in natural images. It is commonly suggested that scaling instead results from edges, each with power spectrum 1/k^2. This hypothesis is refuted by example. (To appear in Vision Research) It may be found at my website: http://quake.usc.edu/~dlr/papers.html -- Dr. Dan Ruderman ruderman@sloan.salk.edu The Salk Institute (VCL) 10010 N. Torrey Pines Road La Jolla, CA 92037 (619) 453-4100 x2025 FAX: (619) 455-7933 From parodi@cptsu2.univ-mrs.fr Tue Feb 18 18:07:39 1997 Received: from lucy.cs.wisc.edu (lucy.cs.wisc.edu [128.105.2.11]) by sea.cs.wisc.edu (8.6.12/8.6.12) with ESMTP id SAA27838 for ; Tue, 18 Feb 1997 18:07:11 -0600 Received: from TELNET-1.SRV.CS.CMU.EDU (TELNET-1.SRV.CS.CMU.EDU [128.2.254.108]) by lucy.cs.wisc.edu (8.7.6/8.7.3) with SMTP id SAA02706 for ; Tue, 18 Feb 1997 18:06:43 -0600 (CST) Received: from TELNET-1.SRV.CS.CMU.EDU by telnet-1.srv.cs.CMU.EDU id aa26568; 18 Feb 97 13:18:37 EST Received: from DST.BOLTZ.CS.CMU.EDU by TELNET-1.SRV.CS.CMU.EDU id aa26566; 18 Feb 97 13:04:00 EST Received: from DST.BOLTZ.CS.CMU.EDU by DST.BOLTZ.CS.CMU.EDU id aa04633; 18 Feb 97 13:03:26 EST Received: from EDRC.CMU.EDU by B.GP.CS.CMU.EDU id aa18414; 18 Feb 97 7:57:03 EST Received: from cptsu2.univ-mrs.fr by EDRC.CMU.EDU id aa11170; 18 Feb 97 7:54:41 EST Received: by cptsu2.univ-mrs.fr (5.61+++/1.34) id AA19906; Tue, 18 Feb 97 13:54:31 +0100 Date: Tue, 18 Feb 97 13:54:31 +0100 From: Olivier Parodi Message-Id: <9702181254.AA19906@cptsu2.univ-mrs.fr> To: cogpsy@neuro.psy.soton.ac.uk, Connectionists@cs.cmu.edu, connect_dis@complex.nbi.dk Subject: Cargese Summer School on Neural Information Processing Cc: parodi@cptsu2.univ-mrs.fr SUMMER SCHOOL on NEURONAL INFORMATION PROCESSING : FROM BIOLOGICAL DATA TO MODELLING AND APPLICATIONS Cargese -- Corse du Sud (France) June 30 -- July 12, 1997 organized at the INSTITUT D'ETUDES SCIENTIFIQUES DE CARGESE CNRS (UMS 820) Universite de Nice-Sophia Antipolis - Universite de Corte F 20130 CARGESE Sponsored by Centre National de la Recherche Scientifique DGA-DRET (French Ministry of Defence) Conseil Executif de la Corse THEME In the past ten years, statistical mechanics and dynamics of neuronal automata have been extensively studied. Most of the work has been based on over-simplified models of neurons. Recent developments in Neurosciences have, however, considerably modified our knowledge of both the operating modes of neurons and information processing in the cortex. Multi-unit recordings have allowed precise temporal correlations to be detected, within temporal windows of the order of 1 ms. Simultaneously, oscillations corresponding to a quasi-periodic spike-firing, synchronized over several visual cortical areas, have been observed with anaesthesied cats and with monkeys. Last but not least, recent work on the neuronal operating modes have emphasized the role played by the dendritic arborization. These developments have led to considerable interest for coding scheme relying on precise spatio-temporal patterns both from the theoretical and experimental points of view. This prompts us to consider, for information processing, new models which would proceed, e.g., from a synchronous detection of correlated spike firing, and could be particularly robust against noise. Such models might bring about original technical applications for information processing and control. Further developments in this field may be of major importance for our understanding of the basic mechanisms of perception and cognition. They should also lead to new concepts in applications directed towards artificial perception and pattern recognition. Up to now, artificial systems for pattern recognition are far from reaching the standards of human vision. Systems based on a temporal coding by spikes may now be expected to bring about major improvements in this field. The aim of the school is to provide students and people engaged in both applied and basic research with state of the art in every relevant field (Neurosciences, Physics, Mathematics, Information and Control Theory) and to encourage further interdisciplinary and international exchanges. PRELIMINARY PROGRAM Pr. M. Abeles (Jerusalem) - Spike Correlations and synfire chains, Pr. P. Combe (Marseille) - Learning: a geometrical approach, Pr. J. Demongeot (Grenoble) - Dynamics of modular architectures, Pr. L. van Hemmen (Munchen) - Coding by spikes, Pr. J. Herault (Grenoble) - Information processing in the retina, Pr. J. Hertz (Copenhague) - Temporal coding and learning, Pr. A. Holley (Lyon) - Information processing in the olfactory mammalian system, Pr. C. von der Malsburg (Bochum) - Binding and Synchrony, Dr. C. Masson (Paris) - Cellular mechanism of odor discrimination, Dr. J. P. Nadal (Paris) - Information theory and neuronal architecture, Dr. O. Parodi (Marseille) - Temporal coding and correlation detection, Pr. S. Solla (ATT) - Dynamics of on-line learning processes. OFFICIAL LANGUAGES The official languages of the School are English and French. Lectures will given in English. DIRECTOR OF THE SCHOOL Olivier PARODI, Centre de Physique Theorique CNRS-Luminy, case 907, F 13288 MARSEILLE CEDEX 09, France Tel. (33) 4 91 26 95 30 Fax (33) 4 91 26 95 53 e-mail parodi@cpt.univ-mrs.fr REGISTRATION FEES Students: free CNRS and members of CNRS institutes: free University: 1500 FF Industry: 2500 FF ACCOMMODATION GRANTS 1 - The School is sponsored by the Formation Permanente du CNRS, which can support accomodation expenses of at least 16 CNRS participants. 2 - The Organizing Committee will consider grants for students and young participants. PRACTICAL INFORMATION The school will be held at the Institut d'Etudes Scientifiques de Cargese. Lectures and Seminars will be given from 9 am to 12:30 pm and from 4 to 7:15 pm.(except on Sunday) from July 1 to 11 included. All participants are expected to arrive on June 30 and leave on July 12. TRAVEL : Cargese is located approximatively 60 kms North of Ajaccio. The best way to get to Cargese is to reach Ajaccio. You are asked to make your own travelling arrangements. However, in order to reduce the cost of your travel, two groups will be organized on regular flights between Paris and Ajaccio and Marseille and Ajaccio on June 30 and July 12 (approx. 1200-1400 FF for a Paris- Ajaccio return ticket). We also consider renting buses for the Ajaccio-Cargese and return journeys. Details will be sent later. ACCOMODATION : The Institute is located 2 km south of the village, on the sea shore. On working days, lunches will be served at the Institute (800 FF for the session, including refreshment and coffe breaks). There are various housing possibilities: - shared room at the Institute or in apartments in the village - 1920 FF (per person for the session) - single room in shared apartments in the village - 2640 FF for the session - rented apartment in the village for your family - 270 to 500 FF per day - hotels in the village - 250 to 400 FF per person per day - camping on the grounds of the Institute - 20 FF per person per day. You have to bring your own equipment, showers are at your disposal. Breakfast will be served at the Institute for people staying on the grounds. WARNING: There are no banks nor cash machines in Cargese and credit cards are not accepted everywhere. Think to bring enough French cash before leaving Paris, Marseille or Ajaccio. NOTE : We cannot provide accomodation before or after the dates of the School. POSTER SESSION : One or several poster sessions will be organized. Participants are encouraged to prepare posters on their own work. REGISTRATION : You have to fill the enclosed application and return it by e-mail to cargese@cpt.univ-mrs.fr BEFORE MARCH 31, 1997 with, if necessary, a letter justifying your grant request. The School will accept up to 50 students, including those supported by the Formation Permanente of CNRS. In case of over-demand, participants will be selected by the Scientific Committee, with a balance between junior and senior students, and a preference for students carrying an active research in the field. ------------------ http://cpt.univ-mrs.fr/Cargese ---------------------- ***************************************************************************** ***************************************************************************** French Version Version Francaise (TEX) a compiler en "plain TEX" sur une station UNIX, un MAC avec Textures ou un PC. ***************************************************************************** \nopagenumbers \vsize 26.5 true cm \hsize 18.5 true cm \hoffset -1.2 true cm \voffset -1 cm \null {\bf \centerline{ECOLE D'ETE} \vskip 1 true cm \centerline{TRAITEMENT NEURONAL DE L'INFORMATION} \medskip \centerline{Des donn\'ees biologiques \`a la mod\'elisation et aux applications} \vskip 1 true cm \centerline{Carg\`ese, Corse du Sud (France)} \par \centerline{30 juin -- 12 juillet 1997} \bigskip \centerline{organis\'ee \`a} \bigskip \centerline{L'INSTITUT D'ETUDES SCIENTIFIQUES DE CARGESE} } \smallskip \centerline{CNRS (UMS 820) -- Universit\'e de Nice-Sophia Antipolis -- Universit\'e de Corte} \smallskip \centerline{F 20130 Carg\`ese} \vskip 1 true cm \noindent Subventionn\'ee par \par Le Centre National de la Recherche Scientifique \par La Direction Scientifique de la DGA-DRET (Minist\`ere de la D\'efense) \par La Collectivit\'e Territoriale Corse \vskip 1 true cm\noindent {\bf THEME} \medskip Depuis une dizaine d'ann\'ees, de nombreuses \'etudes ont port\'e sur la m\'ecanique statistique et la dynamique d'au\-to\-ma\-tes neuronaux, bas\'ees le plus souvent sur une mod\'elisation relativement ancienne du neurone. Mais les d\'eveloppements r\'ecents en Neurosciences ont consid\'erablement modifi\'e nos connaissances, \`a la fois sur le neurone et sur le traitement de l'information dans le cortex. \par Les techniques d'enregistrement multi-\'electrodes ont permis de d\'etecter des corr\'elations temporelles tr\`es pr\'ecises dans des fen\^etres de l'ordre de la milliseconde. En m\^eme temps des {\it oscillations}, correspondant \`a des \'emissions quasi-p\'eriodiques de potentiels d'action synchronis\'ees \`a travers tout le cortex visuel, ont \'et\'e observ\'ees chez des chats anesth\'esi\'es et chez des singes. Parall\`element, des travaux portant sur le fonctionnement du neurone ont soulign\'e le r\^ole important jou\'e par l'arborisation dendritique, r\^ole compl\`etement pass\'e sous silence dans les mod\`eles classiques d'automates neuronaux. \par Ces d\'eveloppements ont donn\'e un essor consid\'erable \`a des \'etudes, tant th\'eoriques qu'exp\'erimentales, faisant intervenir un codage par des configurations spatio-temporelles pr\'ecises. On est ainsi amen\'e \`a envisager de nouveaux mod\`eles de traitement de l'information, bas\'es, par exemple, sur la d\'etection synchrone de signaux corr\'el\'es, et qui pourraient \^etre particuli\`erement robustes vis-\`a-vis du bruit. Ces mod\`eles pourraient conduire \`a des applications technologiques originales en mati\`ere de traitement de l'information et de contr\^ole. \par Le but de cette \'ecole est d'apporter aux \'etudiants et aux chercheurs, tant fondamentaux qu'ap\-pli\-qu\'es, un enseignement de pointe couvrant, dans ce domaine, l'ensemble des disciplines concern\'ees (Neurosciences, Physique, Math\'ematiques, Th\'eories de l'Information et du Contr\^ole), et de favoriser des coop\'erations interdisciplinaires et internationales. \vskip .8 true cm\noindent {\bf PROGRAMME PRELIMINAIRE} \medskip \par Pr. M. Abeles (Jerusalem) -- Spike Correlations and synfire chains, \par Pr. P. Combe (Marseille) -- Learning: a geometrical approach, \par Pr. J. Demongeot (Grenoble) -- Dynamics of modular architectures, \par Pr. L. van Hemmen (Munchen) -- Coding by spikes, \par Pr. J. H\'erault (Grenoble) -- Information processing in retina, \par Pr. J. Hertz (Copenhague) -- Temporal coding and learning, \par Pr. A. Holley (Lyon) -- Information processing in the olfactory mammalian system, \par Pr. C. von der Malsburg (Bochum) -- Binding and Synchrony, \par Dr. C. Masson (Paris) -- Cellular mechanism of odor discrimination, \par Dr. J. P. Nadal (Paris) -- Information theory and neuronal architecture, \par Dr. O. Parodi (Marseille) -- Temporal coding and correlation detection, \par Pr. S. Solla (ATT) -- Dynamics of on-line learning processes \vfill \eject \noindent {\bf LANGUES OFFICIELLES} \smallskip Les langues officielles de l'Ecole sont l`anglais et le fran\c cais. Les cours seront donn\'es en anglais \bigskip\noindent {\bf DIRECTEUR DE L'ECOLE} \smallskip Olivier PARODI, Centre de Physique Th\'eorique \par CNRS-Luminy, case 907, F 13288 MARSEILLE CEDEX 09, France \par Tel. (33) 4 91 26 95 30 Fax (33) 4 91 26 95 53 \par e-mail parodi@cpt.univ-mrs.fr \bigskip\noindent {\bf DROITS D'INSCRIPTION} \smallskip \par Etudiants: n\'eant \par Personnels CNRS et membres de laboratoires soutenus par le CNRS: n\'eant \par Autres universitaires: 1500 FF \par Secteur industriel: 2500 FF \bigskip\noindent {\bf ALLOCATIONS} \smallskip \item{1 -} L'Ecole est subventionn\'ee par la Formation permanente du CNRS. Les frais de s\'ejour d'au moins 16 participants CNRS -- ou, \`a d\'efaut, de participants en provenance de Laboratoires soutenus par le CNRS -- pourront \^etre pris en charge par la Formation Permanente de la XIIe D\'el\'egation. Les frais de transport des personnels CNRS seront alors pris en charge par la Formation Permanente de leur D\'el\'egation. \item{2 -} Le Comit\'e d'Organisation envisage d'attribuer des bourses aux jeunes chercheurs. \bigskip\noindent {\bf INFORMATIONS PRATIQUES} \smallskip L'Ecole est organis\'ee \`a l'Institut d'Etudes Scientifiques de Carg\`ese. Les Cours et les S\'eminaires auront lieu de 9h \`a 12h30 et de 16h \`a 19h15 tous les jours, sauf le Dimanche, du 1er juillet au 11 juillet inclus. Tous les participants sont attendus le 30 juin et leur d\'epart est pr\'evu le 12 juillet. \medskip\noindent VOYAGE: \par Carg\`ese est situ\'e \`a environ 60 km au Nord d'Ajaccio. La meilleure mani\`ere de s'y rendre est de gagner d'abord Ajaccio. Vous \^etes responsable de l'organisation de votre voyage, aller et retour. Cependant, afin d'en r\'eduire le co\^ut, des vols de groupe sur ligne r\'eguli\`ere seront organis\'es entre Paris et Ajaccio et Marseille et Ajaccio les 30 juin et 12 juillet (Prix approximatif 1200 \`a 1400 FF pour un aller et retour Paris-Ajaccio). Nous envisageons aussi de louer des cars pour les aller et retour Ajaccio-Carg\`ese. Les d\'etails seront communiqu\'es ult\'erieurement. \medskip\noindent LOGEMENT: \par L'Institut est situ\'e \`a 2 km du village au bord de la mer. Les jours de cours, le d\'ejeuner est servi sur place (800 FF pour la session y compris les pauses-caf\'e). Les possibilit\'es d'h\'ebergement sont diverses: \medskip \item{- } Chambre partag\'ee avec un coll\`egue \`a l'Institut ou dans un appartement au village (1920 FF pour la dur\'ee de la session), \item{- } Chambre individuelle dans un appartement partag\'e (2640 FF pour la session), \item{- } Appartement au village en location pour votre famille (270 \`a 500 FF par jour) \item{- } H\^otel dans le village (250 \`a 400 FF par jour et par personne) \item{- } Camping sur le terrain m\^eme de l'Institut, avec votre mat\'eriel individuel (20 FF par jour). \medskip\noindent {\it ATTENTION: Pas de banque ni de distributeur automatique de billet \`a Carg\`ese, et les cartes de cr\'edit ne sont pas toujours accept\'ees. Pensez \`a vous munir d'argent liquide.} \medskip\noindent NB: Nous n'organisons aucun h\'ebergement en dehors des dates de l'Ecole. \bigskip\noindent {\bf COMMUNICATIONS AFFICH\'EES} \par Une ou plusieurs s\'eances de communications par affiches seront organis\'ees. Les participants sont invit\'es \`a pr\'eparer des affiches sur leur propre travail de recherche. \bigskip\noindent {\bf INSCRIPTION} \par Le formulaire ci-joint doit \^etre renvoy\'e au plus tard le {\bf 31 mars 1997} par courrier \'electronique \`a \break {\bf cargese@cpt.univ-mrs.fr}, accompagn\'e, \'eventuellement, d'une lettre justifiant votre demande de bourse ou de prise en charge par la Formation Permanente du CNRS. \par Le nombre de participants \`a l'Ecole, enseignants non compris, est limit\'e \`a cinquante, nombre incluant les stagiaires subventionn\'es par la Formation Permanente du CNRS. La s\'election des candidats sera effectu\'ee par le Comit\'e Scientifique, qui veillera \`a l'\'equilibre entre jeunes chercheurs et chercheurs confirm\'es, et donnera une priorit\'e aux participants engag\'es dans une recherche active dans le domaine. \medskip \noindent {\bf WEB} \par Toutes les informations concernant l'Ecole sont disponibles \`a l'URL \par {\bf http://cpt.univ-mrs.fr/Cargese/} \end *************************************************************************** *************************************************************************** ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| REGISTRATION FORM BULLETIN D'INSCRIPTION NEURONAL INFORMATION PROCESSING TRAITEMENT NEURONAL DE L'INFORMATION NAME / NOM First name / Prenom (Ms/Mr) Nationality/Nationalite date of birth / date INSTITUTE ADDRESS / LABORATOIRE Tel. Fax e-mail HOME ADDRESS / Adresse personnelle Tel. Next of kin / Personne a prevenir en cas d'accident : DIPLOMA /Niveau Universitaire PRESENT POSITION / EMPLOI ACTUEL ? PRESENT RESEARCH / RECHERCHES ACTUELLES MAIN PUBLICATIONS / Publications Principales (up to five recent publications) Will your Institution pay for / Votre Laboratoire subventionne-t-il: your travel (Yes/No) ? votre voyage (Oui/Non) ? your accommodation expenses (Yes/No) ? vos frais de sejour ? (Oui/Non) ? Only for members of the CNRS / Pour les participants CNRS, ou relevant d'un laboratoire soutenu par le CNRS, demandez-vous la prise en charge de vos frais de sejour et de transport par la Formation Permanente du CNRS ? For Junior applicants, do you request a grant ? (Yes/No) ? Pour les jeunes chercheurs, etes-vous candidat a une bourse ? (Oui/Non) RECOMMENDATION : Junior applicants should arrange for a letter of recommendation from a senior scientist who had the oppotunity to judge their work. This letter should be sent by e-mail to cargese@cpt.univ-mrs.fr. RECOMMANDATION: Les jeunes chercheurs doivent fournir une lettre de recommandation d'un chercheur confirme. Cette lettre doit etre envoyee par courrier electronique a cargese@cpt.univ-mrs.fr YOU ARE RECOMMENDED BY / Vous etes recommande par ? TRAVEL/VOYAGE: Will you take a group flight / Prendrez-vous un vol de groupe ? Paris-Ajaccio-Paris : Number/Nombre ? Marseille-Ajaccio-Marseille : Number/Nombre ? HOUSING (Specify your choice): LOGEMENT (Precisez votre choix): Pour les participants francophones: Etes-vous capable de suivre un cours en anglais ? De participer a une discussion en anglais ? DEADLINE / DATE LIMITE D'INSCRIPTION : THIS APPLICATION HAS TO BE SENT BY E-MAIL NOT LATER THAN MARCH 31, 1997 TO cargese@cpt.univ-mrs.fr CE FORMULAIRE DOIT ETRE RENVOYE PAR COURRIER ELECTRONIQUE AU PLUS TARD LE 31 MARS 1997 A cargese@cpt.univ-mrs.fr You will receive an answer by e-mail before April 30. Vous recevrez une reponse avant le 30 avril. e-mail contact for special requests only / contact par courrier electronique pour des problemes particuliers: cargese@cpt.univ-mrs.fr From pelillo@dsi.unive.it Wed Feb 19 15:04:07 1997 Received: from lucy.cs.wisc.edu (lucy.cs.wisc.edu [128.105.2.11]) by sea.cs.wisc.edu (8.6.12/8.6.12) with ESMTP id PAA10377 for ; Wed, 19 Feb 1997 15:04:02 -0600 Received: from TELNET-1.SRV.CS.CMU.EDU (TELNET-1.SRV.CS.CMU.EDU [128.2.254.108]) by lucy.cs.wisc.edu (8.7.6/8.7.3) with SMTP id PAA24754 for ; Wed, 19 Feb 1997 15:03:39 -0600 (CST) Received: from TELNET-1.SRV.CS.CMU.EDU by telnet-1.srv.cs.CMU.EDU id aa28265; 19 Feb 97 14:36:54 EST Received: from DST.BOLTZ.CS.CMU.EDU by TELNET-1.SRV.CS.CMU.EDU id aa28263; 19 Feb 97 14:15:31 EST Received: from DST.BOLTZ.CS.CMU.EDU by DST.BOLTZ.CS.CMU.EDU id aa05421; 19 Feb 97 14:14:51 EST Received: from CS.CMU.EDU by B.GP.CS.CMU.EDU id aa10121; 19 Feb 97 3:36:08 EST Received: from oink.dsi.unive.it by CS.CMU.EDU id aa10440; 19 Feb 97 3:34:57 EST Organization: CDL Informatica - Universita' Venezia Received: (from pelillo@localhost) by oink.dsi.unive.it (8.7.3/8.7.3) id JAA16875 for Connectionists@CS.CMU.EDU; Wed, 19 Feb 1997 09:33:05 +0100 (MET) From: Marcello Pelillo Message-Id: <199702190833.JAA16875@oink.dsi.unive.it> Subject: EMMCVPR'97 (Venice) - Program To: Connectionists@cs.cmu.edu Date: Wed, 19 Feb 1997 09:33:05 +0100 (MET) X-Mailer: ELM [version 2.4 PL25] Content-Type: text I apologize if you receive multiple copies of this. Updated information about the workshop can be found at the following URL: http://www.dsi.unive.it/~emmcvpr Best regards Marcello Pelillo =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=-=-=-=-=-=-=-=-=-=-= EMMCVPR'97 International Workshop on ENERGY MINIMIZATION METHODS IN COMPUTER VISION AND PATTERN RECOGNITION Ca' Dolfin, Venice, Italy, May 21-23, 1997 PROGRAM WEDNESDAY (May 21) 9:00 Opening and welcome addresses 9:30 Keynote lecture: Object Recognition Using Stochastic Optimization S. Ullman The Weizmann Institute of Science, Israel 10:30 Coffee break 11:00 Characterizing the Distribution of Completion Shapes with Corners Using a Mixture of Random Processes K. K. Thornber and L. R. Williams NEC Research Institute, USA 11:30 Adaptive Parametrically Deformable Contours M. A. T. Figueiredo, J. M. N. Leitao, and A. K. Jain Instituto Superior Tecnico, Portugal 12:00 Kona: A Multi-Junction Detector using Minimum Description Length Principle L. Parida, D. Geiger, and R. Hummel New York University, USA 12:30 Lunch 14:00 Invited lecture: Reliable Computation and Related Games S. W. Zucker Yale University, USA 15:00 Genetic Algorithms for Ambiguous Labelling Problems R. Myers and E. R. Hancock University of York, UK 15:30 Toward Global Solution to MAP Image Estimation: Using Common Structure of Local Minima S. Z. Li Nanyang Technological University, Singapore 16:00 Coffee break 16:30 Image Segmentation Via Energy Minimization on Partitions with Connected Components J.-P. Wang Ecole Normale Superieure de Cachan, France 17:00 Integration of Confidence Information by Markov Random Fields for Reconstruction of Underwater 3D Acoustic Images V. Murino Universita' di Udine, Italy 17:30 Restoration of Severely Blurred High Range Images Using Stochastic and Deterministic Relaxation Algorithms in Compound Gauss Markov Random Fields R. Molina, A. K. Katsaggelos, J. Mateos, and A. Hermoso Universidad de Granada, Spain THURSDAY (May 22) 8:30 Invited lecture: Probabilistic Relaxation: Potential, Relationships and Open Problems J. Kittler University of Surrey, UK 9:30 An Expectation-Maximisation Approach to Graph Matching A. M. Finch, R. C. Wilson, and E. R. Hancock University of York, UK 10:00 A Region-Level Motion-Based Graph Representation and Labeling for Tracking a Spatial Image Partition M. Gelgon and P. Bouthemy IRISA/INRIA, France 10:30 Coffee break 11:00 Deterministic Annealing for Unsupervised Texture Segmentation T. Hofmann, J. Puzicha, and J. Buhmann Rheinische Friedrich-Wilhelms-Universitat, Germany 11:30 Self-Annealing: Unifying Deterministic Annealing and Relaxation Labeling A. Rangarajan Yale University, USA 12:00 Multidimensional Scaling by Deterministic Annealing H.-J. Klock and J. M. Buhmann Rheinische Friedrich-Wilhelms-Universitat, Germany 12:30 Lunch 14:00 Invited lecture: Search Strategies for Detecting Deformable Templates A. L. Yuille Harvard University, USA 15:00 Poster session P1 Unsupervised Segmentation Applied on Sonar Images C. Collet, M. Mignotte, P. Perez, and P. Bouthemy Ecole Navale, Brest-Naval, France P2 Adaptive Anisotropic Parameter Estimation in the Weak Membrane Model T. Kubota and T. Huntsberger University of South Carolina, USA P3 Figure-Ground Separation: A Case Study in Energy Minimization via Evolutionary Computing S. M. Bhanarkar and X. Zeng The University of Georgia, USA P4 SAR Image Registration and Segmentation Using an Estimated Elevation Map C. A. Glasbey JCMB, Scotland P5 Restoration of SAR Images Using Recovery of Discontinuities and Non-linear Optimization F. Tupin, M. Sigelle, A. Chkeif, and J.-P. Veran Ecole Nationale Superieure des Telecommunications, France P6 Optimization Problems in Statistical Object Recognition J. Hornegger and H. Niemann Friedrich-Alexander-Universitat, Germany P7 An Energy Minimization Method for Matching and Comparing Structured Object Representations R. Azencott and L. Younes CMLA, ENS Cachan, France P8 Deformable Templates for Tracking and Analysis of Intravascular Ultrasound Sequences F. Escolano, M. Cazorla, D. Gallardo, and R. Rizo Universidad de Alicante, Spain P9 Deterministic Search Strategies for Relational Graph Matching M. L. Williams, R. C. Wilson, and E. R. Hancock Defence Research Agency, UK P10 Geometrically Deformable Templates for Shape-based Segmentation and Tracking in Cardiac MR Images D. Rueckert and P. Burger Imperial College, London, UK P11 Motion Correspondence through Energy Minimization A. Branca, E. Stella, and A. Distante IESI/CNR, Italy FRIDAY (May 23) 8:30 Invited lecture: Object Localization Using Color, Shape and Texture A. K. Jain Michigan State University, USA 9:30 Consistent Modeling of Terrain and Drainage Using Deformable Models P. Fua EPFL, Lausanne, Switzerland 10:00 Visual Deconstruction: Recognizing Articulated Objects T.-L. Liu and D. Geiger New York University, USA 10:30 Coffee break 11:00 Maximum Likelihood Estimation of Markovian Prior Parameters Using Markov Chain Monte Carlo X. Descombes, R. Morris, J. Zerubia, and M. Berthod INRIA, France 11:30 Unsupervised Image Segmentation Using Markov Random Field Models S. A. Barker and P. J. W. Rayner University of Cambridge, UK 12:00 Noniterative Manipulation of Discrete Energy-Based Models for Image Analysis P. Perez and J.-M. Laferte' IRISA/INRIA, France 12:30 Closing remarks =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= EMMCVPR'97 REGISTRATION FORM Please fill in the registration form and send it either by ordinary mail or fax to: Marcello Pelillo Dipartimento di Matematica Applicata e Informatica Universita' "Ca' Foscari" di Venezia Via Torino 155 30173 Venezia Mestre, Italy Fax: +39 41 2908419 Last name __________________________ First name __________________________ Affiliation _______________________________________________________________ Address ___________________________________________________________________ ___________________________________________________________________________ Zip code ____________________ City ______________________________________ Country ___________________________________________________________________ Tel ________________________________ Fax ________________________________ E-mail ____________________________________________________________________ Accompanying person(s) Last name __________________________ First name __________________________ REGISTRATION FEES quoted in Italian lire (LIT). Early registration (before March 31, 1997) (*) LIT 500,000 (_) Late registration (after March 31, 1997) (*) LIT 600,000 (_) Student (**) LIT 300,000 (_) Accompanying person (***) LIT 150,000 (_) Total payment ___________ (*) Full registration fees include participation to the scientific sessions, the proceedings book, the coffee breaks and the social program. (**) Students must certify their status. Student's fee includes participation to the scientific sessions, the proceedings book and the coffee breaks. (***) The fee for the accompanying person covers the social program. PAYMENT All payments must be in Italian lire. 1) Please charge my credit card in favor of "SAF srl" VISA ____ MASTERCARD ____ Name of cardholder ____________________________________________________ No ___________________________________ Expiration date _______________ Amount ____________________ Signature ________________________________ Date ________________ 2) Please make a SWIFT bank transfer to "SAF srl" account: BANCA COMMERCIALE ITALIANA Agenzia n. 2, Taranto, Italy ABI: 02002 CAB: 15804 Account number: 4743037-01-46 ALL COSTS TO TRANSMITTER'S CHARGE Please do not forget to indicate your name and the purpose of payment, and attach a copy of the transfer to the registration form. From gareth@stat.stanford.edu Wed Feb 19 23:37:51 1997 Received: from lucy.cs.wisc.edu (lucy.cs.wisc.edu [128.105.2.11]) by sea.cs.wisc.edu (8.6.12/8.6.12) with ESMTP id XAA21120 for ; Wed, 19 Feb 1997 23:37:42 -0600 Received: from TELNET-1.SRV.CS.CMU.EDU (TELNET-1.SRV.CS.CMU.EDU [128.2.254.108]) by lucy.cs.wisc.edu (8.7.6/8.7.3) with SMTP id XAA06203 for ; Wed, 19 Feb 1997 23:37:38 -0600 (CST) Received: from TELNET-1.SRV.CS.CMU.EDU by telnet-1.srv.cs.CMU.EDU id aa00252; 19 Feb 97 18:20:18 EST Received: from DST.BOLTZ.CS.CMU.EDU by TELNET-1.SRV.CS.CMU.EDU id aa00250; 19 Feb 97 17:47:45 EST Received: from DST.BOLTZ.CS.CMU.EDU by DST.BOLTZ.CS.CMU.EDU id aa05587; 19 Feb 97 17:47:04 EST Received: from RI.CMU.EDU by B.GP.CS.CMU.EDU id aa23277; 19 Feb 97 17:27:27 EST Received: from stat.Stanford.EDU by RI.CMU.EDU id aa00981; 19 Feb 97 17:27:00 EST Received: from rgmiller.Stanford.EDU (rgmiller.Stanford.EDU [36.137.0.30]) by playfair.Stanford.EDU (8.8.5/8.6.10) with ESMTP id OAA18487 for ; Wed, 19 Feb 1997 14:26:58 -0800 Received: from localhost (gareth@localhost) by rgmiller.Stanford.EDU (8.8.5/8.8.5) with SMTP id OAA05383 for ; Wed, 19 Feb 1997 14:25:58 -0800 (PST) X-Authentication-Warning: rgmiller.Stanford.EDU: gareth owned process doing -bs Date: Wed, 19 Feb 1997 14:25:57 -0800 (PST) From: Gareth James X-Sender: gareth@rgmiller.Stanford.EDU To: Connectionists@cs.cmu.edu Subject: Paper on Generalized Bias/Variance Decomposition Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII The following paper is available in postscript format at http://stat.stanford.edu/~gareth under my papers section. Generalizations of the Bias/Variance Decomposition for Prediction Error Gareth James and Trevor Hastie (Stanford University) The bias and variance of a real valued random variable, using squared error loss, are well understood. However because of recent developments in classification techniques it has become desirable to extend these concepts to general random variables and loss functions. The 0-1 (misclassification) loss function with categorical random variables has been of particular interest. We explore the concepts of variance and bias and develop a decomposition of the prediction error into functions of the systematic and variable parts of our predictor. After providing some examples we conclude with a discussion of the various definitions that have been proposed. From carmesin@schoner.physik.uni-bremen.de Thu Feb 20 13:25:16 1997 Received: from lucy.cs.wisc.edu (lucy.cs.wisc.edu [128.105.2.11]) by sea.cs.wisc.edu (8.6.12/8.6.12) with ESMTP id NAA03022 for ; Thu, 20 Feb 1997 13:25:00 -0600 Received: from TELNET-1.SRV.CS.CMU.EDU (TELNET-1.SRV.CS.CMU.EDU [128.2.254.108]) by lucy.cs.wisc.edu (8.7.6/8.7.3) with SMTP id NAA19958 for ; Thu, 20 Feb 1997 13:24:58 -0600 (CST) Received: from TELNET-1.SRV.CS.CMU.EDU by telnet-1.srv.cs.CMU.EDU id aa01613; 20 Feb 97 12:38:55 EST Received: from DST.BOLTZ.CS.CMU.EDU by TELNET-1.SRV.CS.CMU.EDU id aa01611; 20 Feb 97 12:25:38 EST Received: from DST.BOLTZ.CS.CMU.EDU by DST.BOLTZ.CS.CMU.EDU id aa06280; 20 Feb 97 12:25:27 EST Received: from EDRC.CMU.EDU by B.GP.CS.CMU.EDU id aa11353; 20 Feb 97 11:13:01 EST Received: from schoner.physik.uni-bremen.de by EDRC.CMU.EDU id aa28465; 20 Feb 97 11:12:01 EST Received: (from carmesin@localhost) by schoner.physik.uni-bremen.de (8.7.1/8.7.1) id RAA03423; Thu, 20 Feb 1997 17:09:05 +0100 Date: Thu, 20 Feb 1997 17:09:05 +0100 Message-Id: <199702201609.RAA03423@schoner.physik.uni-bremen.de> From: Hans-Otto Carmesin To: Connectionists@cs.cmu.edu Subject: Theory and Experiment papers Two corresponding experimental and theoretical papers concerning -- Continuous Phase Transitions in Multistable Perception: Neural Network and Experiment -- are now available. Based on a neural network theory, we predicted a continuous phase transition for multistable perception (H.-O. Carmesin: Theorie neuronaler Adaption, Koester, Berlin 1994,1996). Then we discovered this continuous transition experimentally, observed additional dynamical effects at the sensitive continuous transition and improved the neural network model accordingly. The full neural network theory is presented in the paper - A neural network model for stroboscopic alternative motion - by Hans-Otto Carmesin and Stefan Arndt in Biological Cybernetics 75, 239-251 (1996). ABSTRACT: A neural network which models multistable perception is presented. The network consists of sensor and inner neurons. The dynamics is established by a stochastic neuronal dynamics, a formal Hebb-type coupling dynamics and a resource mechanism that corresponds to saturation effects in perception. >From this a system of coupled differential equations is derived and analyzed. Single stimuli are bound to exactly one percept, even in ambiguous situations where multistability occurs. The network exhibits discontinuous as well as continuous phase transitions and models various empirical findings, including the percepts of succession, alternative motion and simultaneity; the percept of oscillation is explained by oscillating percepts at a continuous phase transition. The experimental methods and results are presented in the paper - Continuous phase transitions in the perception of multistable visual patterns - by Peter Kruse, Hans-Otto Carmesin, Lars Pahlke, Daniel Strber and Michael Stadler in Biological Cybernetics 75, 321-330 (1996). ABSTRACT: The phenomenon of alternative stroboscopic motion exhibits five different percepts that are seen with an increase in frequency of presentation: (a) succession, (b) fluttering motion, (c) reversible clockwise and counterclockwise motion, (d) oppositional motion and (e) simultaneity. From a synergetic point of view the increase in frequency is a control parameter and different percepts are order parameters with phase transitions in between. The neural network theory of Carmesin and Arndt is applied to receive predictions about hysteresis and phase transitions between these order parameters. Empirical data show the different motion percepts (b), (c) and (e) have lognormal distributions. Following the theoretical model, it is argued that there are three different phases, (a), (c) and (e), with two continuous phase transitions, (b) and (d), between them. The experimental data substantially match the theoretical assumptions. Some free reprints are available and can be requested via email from carmesin@theo.physik.uni-bremen.de. Moreover, two related papers are available online in the www at http://schoner.physik.uni-bremen.de/~carmesin/docs/zkw9505.ps and http://schoner.physik.uni-bremen.de/~carmesin/docs/cyber2u.ps. Hans-Otto Carmesin Institute for Theoretical Physics, University Bremen, 28334 Bremen, Germany, WWW: http://schoner.physik.uni-bremen.de/~carmesin/ From prefenes@lbs.ac.uk Fri Feb 21 16:48:04 1997 Received: from lucy.cs.wisc.edu (lucy.cs.wisc.edu [128.105.2.11]) by sea.cs.wisc.edu (8.6.12/8.6.12) with ESMTP id QAA07022 for ; Fri, 21 Feb 1997 16:47:49 -0600 Received: from TELNET-1.SRV.CS.CMU.EDU (TELNET-1.SRV.CS.CMU.EDU [128.2.254.108]) by lucy.cs.wisc.edu (8.7.6/8.7.3) with SMTP id QAA22724 for ; Fri, 21 Feb 1997 16:47:40 -0600 (CST) Received: from TELNET-1.SRV.CS.CMU.EDU by telnet-1.srv.cs.CMU.EDU id aa03087; 21 Feb 97 16:12:14 EST Received: from DST.BOLTZ.CS.CMU.EDU by TELNET-1.SRV.CS.CMU.EDU id aa03085; 21 Feb 97 15:51:22 EST Received: from DST.BOLTZ.CS.CMU.EDU by DST.BOLTZ.CS.CMU.EDU id aa07107; 21 Feb 97 15:51:16 EST Received: from CS.CMU.EDU by B.GP.CS.CMU.EDU id aa07126; 21 Feb 97 14:57:29 EST Received: from titan.lbs.ac.uk by CS.CMU.EDU id aa09505; 21 Feb 97 14:57:07 EST Received: from neptune.lbs.ac.uk (neptune [163.119.254.10]) by galileo.lbs.ac.uk (8.7.5/8.7.3) with ESMTP id UAA10918; Fri, 21 Feb 1997 20:48:03 GMT Received: from NEPTUNE/SpoolDir by neptune.lbs.ac.uk (Mercury 1.21); 21 Feb 97 19:55:27 GMT+0 Received: from SpoolDir by NEPTUNE (Mercury 1.21); 21 Feb 97 19:55:08 GMT+0 From: Paul Refenes Organization: London Business School To: connectionists@cs.cmu.edu, ml.ics.uci.edu@lbs.ac.uk, reinforce@cs.uwa.edu.au Date: Fri, 21 Feb 1997 19:55:04 BST Subject: Preprints available - Neural Networks in the Capital Markets CC: PBolland@lbs.ac.uk, Wholt@lbs.ac.uk, jutans@lbs.ac.uk, prefenes@lbs.ac.uk X-Confirm-Reading-To: "Paul Refenes" X-pmrqc: 1 Priority: normal X-mailer: Pegasus Mail for Windows (v2.52) Message-ID: <5E6F0DD62D7@neptune.lbs.ac.uk> Neural Networks in the Capital Markets The following NNCM-96 pre-prints are now available on request. Please send your postal address to: boguntula@lbs.lon.ac.uk =================================================== NEURAL MODEL IDENTIFICATION, VARIABLE SELECTION AND MODEL ADEQUACY A-P. N. REFENES, A. D. ZAPRANIS AND J. UTANS Department of Decision Science London Business School Regents Park, London, NW1 4SA, UK In recent years an impressive array of publications have appeared claiming considerable successes of neural networks in modeling financial data but skeptical practitioners and statisticians are still raising the question of whether neural networks really are "a major breakthrough or just a passing fad". A major reason for this is the lack of procedures for performing tests for mispecified models, and tests of statistical significance for the various parameters that have been estimated, which makes it difficult to assess the model's significance and the possibility that any short term successes that are reported might be due to "data mining". In this paper we describe a methodology for neural model identification which facilitates hypothesis testing at two levels: model adequacy and variable significance. The methodology includes a model selection procedure to produce consistent estimators, a variable selection procedure based on variable significance testing and a model adequacy procedure based on residuals analysis. ================================================ SPECIFICATION TESTS FOR NEURAL NETWORKS: A CASE STUDY IN TACTICALASSET ALLOCATION A. D. ZAPRANIS, J. UTANS, A-P. N. REFENES Department of Decision Science London Business School Regents Park, London, NW1 4SA, UK A case study in tactical asset allocation is used to introduce a methodology for neural model identification including model specification and variable selection. Neural models are contrasted to multiple linear regression on the basis of model identification. The results indicate the presence of non-linear relationships between the economic variables and asset class returns. =============================================