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ICTIR
2009
Springer
13 years 11 months ago
Semi-parametric and Non-parametric Term Weighting for Information Retrieval
Abstract. Most of the previous research on term weighting for information retrieval has focused on developing specialized parametric term weighting functions. Examples include TF.I...
Donald Metzler, Hugo Zaragoza
ICTIR
2009
Springer
13 years 11 months ago
Score Distributions in Information Retrieval
We review the history of modeling score distributions, focusing on the mixture of normal-exponential by investigating the theoretical as well as the empirical evidence supporting i...
Avi T. Arampatzis, Stephen Robertson, Jaap Kamps
ICTIR
2009
Springer
13 years 11 months ago
PageRank: Splitting Homogeneous Singular Linear Systems of Index One
Abstract. The PageRank algorithm is used today within web information retrieval to provide a content-neutral ranking metric over web pages. It employs power method iterations to so...
Douglas V. de Jager, Jeremy T. Bradley
ICTIR
2009
Springer
13 years 2 months ago
An Effective Approach to Verbose Queries Using a Limited Dependencies Language Model
Intuitively, any `bag of words' approach in IR should benefit from taking term dependencies into account. Unfortunately, for years the results of exploiting such dependencies ...
Eduard Hoenkamp, Peter Bruza, Dawei Song, Qiang Hu...
ICTIR
2009
Springer
13 years 11 months ago
"A term is known by the company it keeps": On Selecting a Good Expansion Set in Pseudo-Relevance Feedback
Abstract. It is well known that pseudo-relevance feedback (PRF) improves the retrieval performance of Information Retrieval (IR) systems in general. However, a recent study by Cao ...
Raghavendra Udupa, Abhijit Bhole, Pushpak Bhattach...