507 search results - page 27 / 102 » Portfolio theory of information retrieval |
SIGIR
2008
ACM
14 years 9 months ago
2008
ACM
We analyse query length, and fit power-law and Poisson distributions to four different query sets. We provide a practical model for query length, based on the truncation of a Pois...
163
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ICDT
2009
ACM
15 years 10 months ago
2009
ACM
The need to manage diverse information sources has triggered the rise of very loosely structured data models, known as "dataspace models." Such information management sy...
89
Voted
CIKM
2009
Springer
15 years 4 months ago
2009
Springer
Ranking is a key problem in many information retrieval (IR) applications, such as document retrieval and collaborative filtering. In this paper, we address the issue of learning ...
76
Voted
CIKM
2011
Springer
13 years 9 months ago
2011
Springer
The field of information retrieval has witnessed over 50 years of research on retrieval methods for metadata descriptions and controlled indexing languages, the prototypical exam...
100
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ECIR
2007
Springer
14 years 11 months ago
2007
Springer
Abstract. We present a framework that assesses relevance with respect to several relevance criteria, by combining the query-dependent and query-independent evidence indicating thes...