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» On relevance distributions
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SIGIR
2009
ACM
13 years 11 months ago
Approximating true relevance distribution from a mixture model based on irrelevance data
Pseudo relevance feedback (PRF), which has been widely applied in IR, aims to derive a distribution from the top n pseudo relevant documents D. However, these documents are often ...
Peng Zhang, Yuexian Hou, Dawei Song
WWW
2004
ACM
14 years 5 months ago
Distribution of relevant documents in domain-level aggregates for topic distillation
In this paper, we study the distribution of relevant documents in aggregates, formed by grouping the retrieved documents according to their domain. For each aggregate, we take int...
Vassilis Plachouras, Iadh Ounis
ECIR
2007
Springer
13 years 6 months ago
On Score Distributions and Relevance
We discuss the idea of modelling the statistical distributions of scores of documents, classified as relevant or non-relevant. Various specific combinations of standard statistic...
Stephen Robertson
LREC
2008
139views Education» more  LREC 2008»
13 years 6 months ago
Experiments to Investigate the Connection between Case Distribution and Topical Relevance of Search Terms in an Information Retr
We have performed a set of experiments made to investigate the utility of morphological analysis to improve retrieval of documents written in languages with relatively large morph...
Jussi Karlgren, Hercules Dalianis, Bart Jongejan