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information retrieval technology 4th asia information retrieval symposium airs 2008 harbin china january 15 18 2008 revised selected papers
p this book constitutes the thoroughly refereed post conference proceedings of the 4th asia information retrieval symposium airs 2008 held in harbin china in may 2008 . p the 39 revised full papers and 43 revised poster papers presented were carefully reviewed and selected from 144 submissions . all current issues in information retrieval are addressed applications systems technologies and theoretical aspects of information retrieval in text audio image video and multi media data . the papers are organized in topical sections on ir models image retrieval text classification chinese language processing text processing application of ir machine learning taxonomy ir methods information extraction summarization multimedia web ir and text clustering . br