Parasol Seminar Fall 2009 | Parasol Laboratory Intranet

Parasol Seminar Fall 2009

Friday October 16, 2009. 4:00 pm
Room 302 HRBB

Toward Brain-like Cognitive Systems Based on Attention, Object Perception and Knowledge Representation

Minho Lee.
School of Electrical Engineering and Computer Science, Kyungpook National University

Abstract

Intelligent cognitive systems with knowledge clustering remain a high priority research topic, among which the learning techniques of neural networks are used to achieve optimal performance. In this talk, I present a new framework that can autonomously development of machine intelligence by interaction with human through communicative learning process, which can create a relevance map from sensory data that can represent knowledge regarding objects and infer new knowledge about novel objects. The proposed model is based on understanding of the visual what and where pathway in our brain. A stereo type selective attention model consisting of bottom-up saliency map and top-down object attention can selectively decide salient object areas, and it is applied to automatically detect a novel situation in chaining environment. Color and form features for a selected object are used for incremental object perception and knowledge representation model. The proposed growing fuzzy topology adaptive resonant theory (GFTART) network makes clusters for the construction of an ontology map in the color and form domains. The clustered information is relevant to describe specific objects, and the proposed model can automatically infer an unknown object by using the learned information. Based on the models and brain activity signals, an emotional understanding and sharing machine will also be introduced. Experimental results with real data have demonstrated the validity of the proposed approach.

Biography

Minho Lee received his Ph.D. from Korea Advanced Institute of Science and Technology(KAIST) in 1995, and is currently a professor of School of Electronic and Electrical Engineering, Kyungpook National University, Taegu, Korea. He established Mobile Technology Commercial Center at Daegu, and worked for Education & Training Department as a director from 2005 to 2006. Also, he was a visiting professor for Dept. of Brain and Cognitive Science at MIT from 2006 to 2007. His research interests include brain-neuroinformatics, biologically inspired vision and acoustic systems, selective attention, brain-machine interaction and intelligent sensor systems. (Home page: http://abr.knu.ac.kr)

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