Efficiency Issues in Information Retrieval Workshop
Today’s technological advancements allow for vast amounts of information to be widely generated, disseminated, and stored. This exponentially increasing amount of information renders the retrieval of relevant information a necessary and cumbersome task. T
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University of A Coru˜ na, Spain [email protected] 2 ISTI-CNR, Pisa, Italy [email protected]
Today’s technological advancements allow for vast amounts of information to be widely generated, disseminated, and stored. This exponentially increasing amount of information renders the retrieval of relevant information a necessary and cumbersome task. The field of Information Retrieval (IR) addresses this task by developing systems in an effective and efficient way. Specifically, IR effectiveness deals with retrieving the most relevant information to a user need, while IR efficiency deals with providing fast and ordered access to large amounts of information. The efficiency of IR systems is of utmost importance, because it ensures that systems scale up to the vast amounts of information needing retrieval. This is an important topic of research for both academic and corporate environments. In academia, it is imperative for new ideas and techniques to be evaluated on as nearrealistic environments as possible.In corporate environments, it is important that systems response time is kept low, and the amount of data processed high. These efficiency concerns need to be addressed in a principled way, so that they can be adapted to new platforms and environments, such as IR from mobile devices, desktop search, distributed peer to peer, expert search, multimedia retrieval, and so on. Efficiency research over the past years has focused on efficient indexing, storage (compression) and retrieval of data (query processing strategies). This workshop addresses the efficiency concerns regarding IR applications (both new and traditional): – Do new applications create novel efficiency problems? – Can existing efficiency-related technology deal with these new applications? – About state-of-the-art efficiency: has there been any advance in the last decade, or is it at a stand-still? – To what extent is efficiency separated from effectiveness? Can this gap be bridged? – What are the lessons learnt from efficiency research in the last years?. Can any of these be carried across to effectiveness? Major goals of this workshop are to: a) shed light on efficiency-related problems of modern large-scale IR and new IR environments; b) foster collaboration between different research groups in order to explore new and ground-breaking ideas; c) bearing in mind past research on effciency, sketch future directions for the field. C. Macdonald et al. (Eds.): ECIR 2008, LNCS 4956, p. 711, 2008. c Springer-Verlag Berlin Heidelberg 2008
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