Keynote Papers.- From Information Retrieval to Information Interaction.- IR and AI: Traditions of Representation and Anti-representation in Information Processing.- User Studies.- A User-Centered Approach to Evaluating Topic Models.- A Study of User Interaction with a Concept-Based Interactive Query Expansion Support Tool.- Searcher's Assessments of Task Complexity for Web Searching.- Question Answering.- Evaluating Passage Retrieval Approaches for Question Answering.- Identification of Relevant and Novel Sentences Using Reference Corpus.- Answer Selection in a Multi-stream Open Domain Question Answering System.- Information Models.- A Bidimensional View of Documents for Text Categorisation.- Query Difficulty, Robustness, and Selective Application of Query Expansion.- Combining CORI and the Decision-Theoretic Approach for Advanced Resource Selection.- Predictive Top-Down Knowledge Improves Neural Exploratory Bottom-Up Clustering.- Classification.- Contextual Document Clustering.- Complex Linguistic Features for Text Classification: A Comprehensive Study.- Eliminating High-Degree Biased Character Bigrams for Dimensionality Reduction in Chinese Text Categorization.- Summarization.- Broadcast News Gisting Using Lexical Cohesion Analysis.- From Text Summarisation to Style-Specific Summarisation for Broadcast News.- Image Retrieval.- Relevance Feedback for Cross Language Image Retrieval.- NN k Networks for Content-Based Image Retrieval.- Integrating Perceptual Signal Features within a Multi-facetted Conceptual Model for Automatic Image Retrieval.- Evaluation Issues.- Improving Retrieval Effectiveness by Reranking Documents Based on Controlled Vocabulary.- A Study of the Assessment of Relevance for the INEX'02 Test Collection.- A Simulated Study of Implicit Feedback Models.- Cross Language IR.- Cross-Language Information Retrieval Using EuroWordNet and Word Sense Disambiguation.- Fault-Tolerant Fulltext Information Retrieval in Digital Multilingual Encyclopedias with Weighted Pattern Morphing.- Measuring a Cross Language Image Retrieval System.- Web-Based and XML IR.- An Optimistic Model for Searching Web Directories.- Content-Aware DataGuides: Interleaving IR and DB Indexing Techniques for Efficient Retrieval of Textual XML Data.- Performance Analysis of Distributed Architectures to Index One Terabyte of Text.- Applying the Divergence from Randomness Approach for Content-Only Search in XML Documents.