Invited Contribution -- The Future of Audio Reproduction -- User-Adaptive Web Retrieval -- Using Thematic Ontologies for User- and Group-Based Adaptive Personalization in Web Searching -- A Poset Based Approach for Condition Weighting -- User-Adaptive Music Retrieval -- Adaptive User Modeling for Content-Based Music Retrieval -- Towards User-Adaptive Structuring and Organization of Music Collections -- Music Tracking and Thumbnailing -- An Approach to Automatically Tracking Music Preference on Mobile Players -- Music Thumbnailing Incorporating Harmony- and Rhythm Structure -- Symbolic Music Retrieval -- Automatic Reduction of MIDI Files Preserving Relevant Musical Content -- Automatic Synchronization between Audio and Partial Music Score Representation -- Tagging and Structuring Image Collections -- Automatic Image Tagging Using Community-Driven Online Image Databases -- Geo-temporal Structuring of a Personal Image Database with Two-Level Variational-Bayes Mixture Estimation -- Unsupervised Clustering in Personal Photo Collections -- Systems for Still and Motion Images -- Towards a Fully MPEG-21 Compliant Adaptation Engine: Complementary Description Tools and Architectural Models -- Mobile Museum Guide Based on Fast SIFT Recognition.