500 search results - page 5 / 100 » Document frequency and term specificity |
IJAIT
2007
13 years 10 months ago
2007
In document retrieval task, random projection (RP) is a useful technique of dimension reduction. It can be obtained very quickly yet the recalculation is not necessary to any chang...
RIAO
2007
14 years 9 days ago
2007
We propose a method for supporting query refinement using topical term clusters. First, we propose a new term weighting method that can extract terms strongly related to a specifi...
COLING
2000
14 years 7 days ago
2000
This paper introduces a scheme, which we call the baseline method, to define a measure of term representativeness and measures defined by using the scheme. The representativeness ...
ITCC
2002
IEEE
14 years 3 months ago
2002
IEEE
The emergence of the world-wide-web has led to an increased interest in methods for searching for information. A key characteristic of many of the online document collections is t...
CIKM
2008
Springer
14 years 26 days ago
2008
Springer
Inverse document frequency (IDF) is one of the most useful and widely used concepts in information retrieval. There have been various attempts to provide theoretical justification...