creators_name: Huang, Xiao creators_name: Weng, Juyang editors_name: Berthouze, Luc editors_name: Kaplan, Frédéric editors_name: Kozima, Hideki editors_name: Yano, Hiroyuki editors_name: Konczak, Jürgen editors_name: Metta, Giorgio editors_name: Nadel, Jacqueline editors_name: Sandini, Giulio editors_name: Stojanov, Georgi editors_name: Balkenius, Christian type: confpaper datestamp: 2006-07-23 lastmod: 2011-03-11 08:56:29 metadata_visibility: show title: Covert Perceptual Capability Development ispublished: pub subjects: comp-sci-stat-model subjects: comp-sci-mach-learn subjects: comp-sci-robot full_text_status: public keywords: vision-based navigation, incremental hierarchical discriminant regression, K-nearest neighbor Q-learning, developmental robot abstract: In this paper, we propose a model to develop robots’ covert perceptual capability using reinforcement learning. Covert perceptual behavior is treated as action selected by a motivational system. We apply this model to vision-based navigation. The goal is to enable a robot to learn road boundary type. Instead of dealing with problems in controlled environments with a low-dimensional state space, we test the model on images captured in non-stationary environments. Incremental Hierarchical Discriminant Regression is used to generate states on the fly. Its coarse-to-fine tree structure guarantees real-time retrieval in high-dimensional state space. K Nearest-Neighbor strategy is adopted to further reduce training time complexity. date: 2005 date_type: published volume: 123 publisher: Lund University Cognitive Studies pagerange: 107-110 refereed: TRUE citation: Huang, Xiao and Weng, Juyang (2005) Covert Perceptual Capability Development. [Conference Paper] document_url: http://cogprints.org/4981/1/huang.pdf