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22
Voted
CIKM
2011
Springer
12 years 7 months ago
2011
Springer
In this paper, we reveal a common deficiency of the current retrieval models: the component of term frequency (TF) normalization by document length is not lower-bounded properly;...
SP
2007
IEEE
14 years 1 months ago
2007
IEEE
Since 1995, much work has been done creating protocols for private information retrieval (PIR). Many variants of the basic PIR model have been proposed, including such modificati...
SIGMOD
2008
ACM
14 years 7 months ago
2008
ACM
Current approaches to develop information extraction (IE) programs have largely focused on producing precise IE results. As such, they suffer from three major limitations. First, ...
CIKM
2009
Springer
14 years 2 months ago
2009
Springer
Information retrieval systems conventionally assess document relevance using the bag of words model. Consequently, relevance scores of documents retrieved for different queries a...
SIGIR
2006
ACM
14 years 1 months ago
2006
ACM
A common limitation of many retrieval models, including the recently proposed axiomatic approaches, is that retrieval scores are solely based on exact (i.e., syntactic) matching o...