A relevance model for a data warehouse contextualized with documents
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http://dx.doi.org/10.1016/j.ipm.2008.11.001 |
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Títol
A relevance model for a data warehouse contextualized with documentsData de publicació
2009Editor
ElsevierISSN
3064573Cita bibliogràfica
Information Processing and Management, 45, 3, p. 356-367Tipus de document
info:eu-repo/semantics/articleParaules clau / Matèries
Resum
This paper presents a relevance model to rank the facts of a data warehouse that are described in a set of documents retrieved with an information retrieval (IR) query. The model is based in language modeling and ... [+]
This paper presents a relevance model to rank the facts of a data warehouse that are described in a set of documents retrieved with an information retrieval (IR) query. The model is based in language modeling and relevance modeling techniques. We estimate the relevance of the facts by the probability of finding their dimensions values and the query keywords in the documents that are relevant to the query. The model is the core of the so-called contextualized warehouse, which is a new kind of decision support system that combines structured data sources and document collections. The paper evaluates the relevance model with the Wall Street Journal (WSJ) TREC test subcollection and a self-constructed fact database. © 2008 Elsevier Ltd. All rights reserved. [-]
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