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WWW
2011
ACM
13 years 2 months ago
2011
ACM
Web pages are usually highly structured documents. In some documents, content with different functionality is laid out in blocks, some merely supporting the main discourse. In ot...
KDD
2009
ACM
14 years 3 months ago
2009
ACM
As the number and size of large timestamped collections (e.g. sequences of digitized newspapers, periodicals, blogs) increase, the problem of efficiently indexing and searching su...
CIKM
2005
Springer
14 years 2 months ago
2005
Springer
Exploiting lexical and semantic relationships in large unstructured text collections can significantly enhance managing, integrating, and querying information locked in unstructur...
SIGIR
2012
ACM
11 years 11 months ago
2012
ACM
We present a novel interpretation of Clarity [5], a widely used query performance predictor. While Clarity is commonly described as a measure of the “distance” between the lan...
ICML
2005
IEEE
14 years 9 months ago
2005
IEEE
How to assign appropriate weights to terms is one of the critical issues in information retrieval. Many term weighting schemes are unsupervised. They are either based on the empir...