This is a forwarded message
From: Mauro Birattari <[EMAIL PROTECTED]>
To: Seminars <[EMAIL PROTECTED]>, G.de Croon <[EMAIL PROTECTED]>
Date: Monday, April 18, 2005, 6:24:03 AM
Subject: IRIDIA Seminar on Tue 19 Apr 2005 at 02:30 PM
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I R I D I A S E M I N A R
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Who:
G. de Croon <[EMAIL PROTECTED]>
Universiteit Maastricht
Department of Computer Science
What:
Sensory-motor Coordination in Gaze Control
When:
Tue 19 Apr 2005 from 02:30 PM for 40 min (+questions)
Where:
IRIDIA
Universitй Libre de Bruxelles
Building C, Floor 5
87 av. Adolph Buyl
Brussels, Belgium
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Sensory-motor Coordination in Gaze Control
G. de Croon
Universiteit Maastricht
Department of Computer Science
[EMAIL PROTECTED]
http://www.cs.unimaas.nl/g.decroon
Abstract
In the field of artificial intelligence, there is a considerable
interest in the notion of sensory-motor coordination as an explanation
for intelligent behaviour. However, there has been little research on
sensory-motor coordination in tasks that go beyond low-level behavioural
tasks. In the presentation, I will discuss experiments that show that
sensory-motor coordination can also enhance performance on a high-level
task: artificial gaze control for gender recognition in natural images.
To investigate the advantage of sensory-motor coordination, we compare a
non-situated model of gaze control (incapable of sensory-motor
coordination) with a situated model of gaze control (capable of
sensory-motor coordination). The non-situated model of gaze control
shifts the gaze according to a fixed set of locations, optimised by an
evolutionary algorithm. The situated model of gaze control determines
gaze shifts on the basis of local inputs in a visual scene. An
evolutionary algorithm optimises the model's gaze control policy. From
the experiments performed, we may conclude that sensory-motor
coordination contributes to artificial gaze control for the high-level
task of gender recognition in natural ima ges: the situated model
outperforms the non-situated model. The mechanism of sensory-motor
coordination establishes dependencies between multiple actions and
observations that are exploited to optimise categorisation performance.
Keywords
Sensory-motor coordination, gaze control, evolutionary algorithms.
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See also http://iridia.ulb.ac.be/seminars
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Carlos Gershenson...
Centrum Leo Apostel, Vrije Universiteit Brussel
Krijgskundestraat 33. B-1160 Brussels, Belgium
http://homepages.vub.ac.be/~cgershen/
“Knowledge brings more questions than answers”
