Abstract

This is a general introduction to Information Retrieval concentrating on some specific topics. I will begin by setting the scene for IR research and introduce its extensive experimental evaluation methodology. I will highlight some of the related areas of research which are currently in fashion emphasising the role of IR in each. For each introductory topic I will illustrate its relevance to IR in the context of a multimedia and multi-lingual environment where appropriate. I will also try and relate these topics to the other papers contained in this volume. My main purpose will be to introduce some underlying concepts and ideas essential for the understanding of IR research and techniques.

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