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Etude de l'influence du passage à l'échelle sur les modèles de recherche d'information

Abstract : Information grows continuously; for professional or personal reasons the need of easy access to it comes under the Information Retrieval field. We first of all make a tour of IR works linked to the scalability, and we notice that few of theses works tackled the questions of Information Retrieval Systems effectiveness in the context of scalability in corpus size. After that, the first part of our work is about a methodology which makes it possible to study the scalability influence on some properties of IR models. This methodology constructs a succession of collections of growing sizes on which a given characteristic C (that acts on the studied properties) is the same; then we analyze the properties as the collection size increases. The second part of our work relates to metrics for evaluating the ability of IRS to rank documents according to their relevance levels when collection size increases. Indeed, for the user's point of view, in large environments, it can be desirable to have Information Retrieval Systems that retrieve documents according to their relevance levels. Relevance levels have been studied in some previous Information Retrieval works while some others (few) IR research works tackled the questions of IRS effectiveness and collections size. These latter works used standard IR measures on collections of increasing size to analyze IRS effectiveness scalability. In this part of our work, we bring together these two issues in IR (multigraded relevance and scalability) by designing these metrics.
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Submitted on : Tuesday, February 5, 2013 - 3:02:28 PM
Last modification on : Wednesday, June 24, 2020 - 4:18:09 PM
Long-term archiving on: : Monday, June 17, 2013 - 7:25:56 PM


  • HAL Id : tel-00785157, version 1


Amélie Imafouo. Etude de l'influence du passage à l'échelle sur les modèles de recherche d'information. Web. Ecole Nationale Supérieure des Mines de Saint-Etienne, 2006. Français. ⟨NNT : ⟩. ⟨tel-00785157⟩



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