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Lim, Ji Hyoun
Intelligent Interaction Lab
Research Interests
  • Computational Cognitive Model, Semantic Network Analysis, Human Robot Interaction

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Reinforcement learning in eye movement: Modeling the influences of top-down and bottom-up processes

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Title
Reinforcement learning in eye movement: Modeling the influences of top-down and bottom-up processes
Author
Lim, Ji HyounYili Liu
Keywords
CONJUNCTIVE VISUAL-SEARCH; ATTENTION; RECOGNITION; SELECTION; GUIDANCE; MOTION; CORTEX; FIELD; Cognitive model; eye movement; queueing network model; reinforcement learning
Issue Date
2009-07
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART A-SYSTEMS AND HUMANS, v.39, no.4, pp.706 - 714
Abstract
Understanding and reproducing complex human oculomotor behaviors using computational models is a challenging task. In this paper, two studies are presented, which focus on the development and evaluation of a computational model to show the influences of cyclic top-down and bottom-up processes on eye movements. To explain these processes, reinforcement learning was used to control eye movements. The first study showed that, in a picture-viewing task, different policies obtained from different picture-viewing conditions produced different types of eye movement patterns. In another visual search task, the second study illustrated that feedback information from each saccadic eye movement could be used to update the model's eye movement policy, generating different patterns in the following saccade. These two studies demonstrate the value of an integrated reinforcement learning model in explaining both top-down and bottom-up processes of eye movements within one computational model.
URI
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DOI
10.1109/TSMCA.2009.2018635
ISSN
1083-4427
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DHE_Journal Papers
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