Asia Information Retrieval Symposium (AIRS) was established in 2004 by the Asian information retrieval community after the successful series of Information Retrieval with Asian Languages (IRAL) workshops held in six different locations in Asia, starting from 1996. The AIRS symposium aims to bring together international researchers and developers to exchange new ideas and the latest results in the field of information retrieval (IR). The scope of the symposium covers applications, systems, technologies and theoretical aspects of information retrieval in text, audio, image, video and multi-media data. We are very pleased to report that we saw a sharp and steady increase in the number of submissions and their qualities, compared with previous IRAL workshop series. We received 136 submissions from all over the world including Asia, North America, Europe, Australia, and even Africa, from which 32 papers (23%) were presented in oral sessions and 36 papers in poster sessions (26%). We also held a special session called "Digital Photo Albuming," where 4 oral papers and 3 posters were presented. It was a great challenge and hard work for the program committee to select the best among the excellent papers. The high acceptance rates witness the success and stability of the AIRS series. All the papers and posters are included in this LNCS (Lecture Notes in Computer Science) proceedings volume, which is S- indexed. The technical program included two keynote talks by Prof. Walter Bender and Prof.

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Session 1A: Relevance/Retrieval Models.- The Reliability of Metrics Based on Graded Relevance.- Improving Weak Ad-Hoc Retrieval by Web Assistance and Data Fusion.- Query Expansion with the Minimum Relevance Judgments.- Improved Concurrency Control Technique with Lock-Free Querying for Multi-dimensional Index Structure.- Session 1B: Multimedia IR.- A Color-Based Image Retrieval Method Using Color Distribution and Common Bitmap.- A Probabilistic Model for Music Recommendation Considering Audio Features.- VisMed: A Visual Vocabulary Approach for Medical Image Indexing and Retrieval.- Object Identification and Retrieval from Efficient Image Matching: Snap2Tell with the STOIC Dataset.- Session 2A: Natural Language Processing in IR.- Extracting the Significant Terms from a Sentence-Term Matrix by Removal of the Noise in Term Usage.- Cross Document Event Clustering Using Knowledge Mining from Co-reference Chains.- Filtering Contents with Bigrams and Named Entities to Improve Text Classification.- The Spatial Indexing Method for Supporting a Circular Location Property of Object.- Supervised Categorization of JavaScriptTM Using Program Analysis Features.- Effective and Scalable Authorship Attribution Using Function Words.- Session 3A: Web IR.- Learning to Integrate Web Taxonomies with Fine-Grained Relations: A Case Study Using Maximum Entropy Model.- WIDIT: Fusion-Based Approach to Web Search Optimization.- Transactional Query Identification in Web Search.- Session 3B: Question Answering.- Improving FAQ Retrieval Using Query Log Clustering in Latent Semantic Space.- Phrase-Based Definitional Question Answering Using Definition Terminology.- Enhanced Question Answering with Combination of Pre-acquired Answers.- Session 4A: Document/Query Models.- An Empirical Study of Query Expansion and Cluster-Based Retrieval in Language Modeling Approach.- Effective Query Model Estimation Using Parsimonious Translation Model in Language Modeling Approach.- Chinese Document Re-ranking Based on Term Distribution and Maximal Marginal Relevance.- On Effectiveness Measures and Relevance Functions in Ranking INEX Systems.- Session 4B: Special Session: Digital PhotoAlbum.- Home Photo Categorization Based on Photographic Region Templates.- MPEG-7 Visual-Temporal Clustering for Digital Image Collections.- A Structured Learning Approach to Semantic Photo Indexing and Query.- Image Retrieval Using Sub-image Matching in Photos Using MPEG-7 Descriptors.- Session 5A: TDT/Clustering.- An Incremental Document Clustering for the Large Document Database.- Subsite Retrieval: A Novel Concept for Topic Distillation.- A Rough Set-Based Fuzzy Clustering.- Effective Use of Place Information for Event Tracking.- Session 5B: Multimedia/Classification.- A Classifier Design Based on Combining Multiple Components by Maximum Entropy Principle.- A Query-by-Singing Technique for Retrieving Polyphonic Objects of Popular Music.- Integrating Textual and Visual Information for Cross-Language Image Retrieval.- Practical Application of Associative Classifier for Document Classification.- Poster and Demo Session 1.- A Method for Query Expansion Using a Hierarchy of Clusters.- Chinese Question Classification from Approach and Semantic Views.- GJM-2: A Special Case of General Jelinek-Mercer Smoothing Method for Language Modeling Approach to Ad Hoc IR.- The Empirical Impact of the Nature of Novelty Detection.- Song Wave Retrieval Based on Frame-Wise Phoneme Recognition.- trackThem: Exploring a Large-Scale News Video Archive by Tracking Human Relations.- Topic-Independent Web High-Quality Page Selection Based on K-Means Clustering.- Improving Text Similarity Measurement by Critical Sentence Vector Model.- Audio Fingerprinting Scheme by Temporal Filtering for Audio Identification Immune to Channel-Distortion.- On the Chinese Document Clustering Based on Dynamical Term Clustering.- Integrating Heterogeneous Multimedia Resources.- Calculating Webpage Importance with Site Structure Constraints.- Gene Ontology Classification of Biomedical Literatures Using Context Association.- An Examination of Feature Selection Frameworks in Text Categorization.- Query Transitive Translation Using IR Score for Indonesian-Japanese CLIR.- Development of a Meta Product Search Engine with Web Services.- An Automatic Code Classification System by Using Memory-Based Learning and Information Retrieval Technique.- Finding New News: Novelty Detection in Broadcast News.- Named Entity Tagging for Korean Using DL-CoTrain Algorithm.- Semantic Categorization of Contextual Features Based on Wordnet for G-to-P Conversion of Arabic Numerals Combined with Homographic Classifiers.- Poster and Demo Session 2.- Robust Matching Method for Scale and Rotation Invariant Local Descriptors and Its Application to Image Indexing.- Image Feedback Retrieval Based on Vector Space Model Transformation.- Indexing Structures for Content-Based Retrieval of Large Image Databases: A Review.- Document Similarity Search Based on Generic Summaries.- KNM: A Novel Intelligent User Interface for Webpage Navigation.- Towards Construction of Evaluation Framework for Query Expansion.- An Efficient Incremental Nearest Neighbor Algorithm for Processing k-Nearest Neighbor Queries with Visal and Semantic Predicates in Multimedia Information Retrieval System.- Generating Term Transliterations Using Contextual Information and Validating Generated Results Using Web Corpora.- Handling Orthographic Varieties in Japanese IR: Fusion of Word-, N-Gram-, and Yomi-Based Indices Across Different Document Collections.- A Term Weighting Approach for Text Categorization.- A LF Based Answer Indexing Method for Encyclopedia Question-Answering System.- Approximate Phrase Match to Compile Synonymous Translation Terms for Korean Medical Indexing.- Protein Function Classification Based on Gene Ontology.- Extracting and Utilizing of IS-A Relation Patterns for Question Answering Systems.- An Iterative Approach for Web Catalog Integration with Support Vector Machines.- Fuzzy Post-clustering Algorithm for Web Search Engine.- A Relational Nested Interval Encoding Scheme for XML Storage and Retrieval.- The Design of Webservices Framework Support Ontology Based Dynamic Service Composition.- Privacy Preserving Decision Tree in Multi Party Environment.