Cognitive Systems -- Natural Language Dialog with a Tutor System for Mathematical Proofs -- On the Effectiveness of Visualizations in a Theory of Computing Course -- Some Cognitive Aspects of a Turing Test for Children -- Challenges in Search and Usage of Multi-media Learning Objects -- An Intelligent Platform for Information Retrieval -- P-Terse: A Peer-to-Peer Based Text Retrieval and Search System -- Identifying Semantic Relations Between Named Entities from Chinese Texts -- Research on English-Chinese Bi-directional Cross-Language Information Retrieval -- Analyzing Image Texture from Blobs Perspective -- Access to Content -- Content-Based Image and Video Indexing and Retrieval -- Shape Recognition with Coarse-to-Fine Point Correspondence Under Image Deformations -- Towards Efficient Ranked Query Processing in Peer-to-Peer Networks.