Connectionists: CFP: Workshop on Deep Hierarchies in Vision

[Sinan KALKAN]

Please circulate freely.

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*Call for papers:*
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Workshop on Deep Hierarchies in Vision
(in conjunction with CogSys2012 - 5th Int. Conf. on Cognitive Systems)
Webpage: http://www.kovan.ceng.metu.edu.tr/~sinan/DHV/

=> February 21, 2012; Vienna-Austria <=

Organizers: Ales Leonardis, Norbert Krueger, Richard Bowden, Sinan Kalkan,
Nicolas Pugeault, Frank Guerin
Webpage for the 5th Int. Conf. on Cognitive Systems:
http://cogsys2012.acin.tuwien.ac.at/

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*Overview:*
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Processing in the brain in general and visual processing in particular is
organized in a hierarchical fashion, from simple localized features to
complex, large scale features. The visual system consists of a hierarchy, in
which neurons in early visual areas extract simple image features
(orientation, motion, disparity) over a small local region of visual space,
which are then transmitted to neurons in higher visual areas responding to
more complex features (e.g. shape) over a larger region of visual space.
Hierarchical representations can derive and organize features at multiple
levels. Hierarchical representations with many levels are called 'deep
hierarchies'. They build on top of each other by exploiting the shareability
of features among more complex compositions or objects themselves. Sharing
features, on the one hand, means sharing common computations, which brings
about (highly desirable) computational efficiency. On the other hand,
reusing the commonalities between objects’ models places their
representations in relation to other objects, thus leading to high
generalization capabilities and lower storage demands.

However, although all neurophysiologic evidence suggests that in the human
visual system quite a number of levels are realized, it has turned out that
the design and/or learning of such deep hierarchical systems is a very
difficult task. Most existing computer vision systems are 'flat' (e.g.,
having rather simple features - such as SIFT - as input and then applying
some kind of SVM learning) and hence cannot make use of the advantages
connected to deep hierarchies. Here in particular the generalization
capabilities are crucial for any form of cognitive intelligence. As a
consequence, we see the issue of establishing deep hierarchies as one major
challenge for the establishment of truly cognitive systems.

The aim of the workshop is to bring together researchers from vision,
robotics, machine learning, artificial intelligence, and neurophysiology to
discuss existing obstacles in the design of deep hierarchies, possible
solutions as well as perspectives for deep hierarchies in vision and
robotics.

A special issue with contributions from the workshop on 'Deep Hierarchies in
Vision' in a journal is planned.

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*Invited speakers:*
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Christian Igel
The Image Group,
University of Copenhagen, Denmark

Justus Piater
Department of Electrical Engineering and Computer Science
University of Innsbruck, Austria

Laurenz Wiskott
Institut für Neuroinformatik
Ruhr-Universität Bochum, Germany

Peter Janssen
Division of Neurophysiology
Katholieke Universiteit Leuven, Belgium

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*Submission:*
=====================

We invite two-page extended abstracts until the 1st of December, 2011. We
provide a Latex template for two-page extended abstracts at:
http://www.kovan.ceng.metu.edu.tr/~sinan/DHV/.

Please follow this template and submit a PDF file online at our workshop
website. The submissions will be reviewed by three reviewers, and the
decisions will be announced by the 20th of December, 2011. A special issue
with contributions from the workshop on 'Deep Hierarchies in Vision' in a
journal is planned.

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*Important Dates:*
=====================

Abstract Submission: 01.12.2011 (23:59 UTC/GMT)
Notification of Acceptance: 20.12.2011
Camera-ready Submission: 15.01.2012
Workshop: 21.02.2012

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*Program Co-chairs:*
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Laurenz Wiskott
Institut für Neuroinformatik
Ruhr-Universität Bochum, Germany

Peter Janssen
Division of Neurophysiology
Katholieke Universiteit Leuven, Belgium

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*Contacts:*
=====================

Ales Leonardis, ales.leonardis at fri.uni-lj.si
Norbert Krueger, norbert at mmmi.sdu.dk
Sinan Kalkan, skalkan at ceng.metu.edu.tr

-- 
Sinan KALKAN, Asst. Prof.
Dept. of Computer Engineering
Middle East Technical University
Ankara TURKEY
Web: http://kovan.ceng.metu.edu.tr/~sinan
Tel:  + 90 - 312 - 210 5547  / + 90 - 312 - 210 7371
Fax: + 90 - 312 - 210 5544
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