500 search results - page 4 / 100 » Document frequency and term specificity |
CIKM
2010
Springer
13 years 9 months ago
2010
Springer
The probability that a term appears in relevant documents ( ) is a fundamental quantity in several probabilistic retrieval models, however it is difficult to estimate without rele...
AIR
2005
13 years 10 months ago
2005
Term-weighting schemes are vital to the performance of Information Retrieval models that use term frequency characteristics to determine the relevance of a document. The vector spa...
IPM
2008
13 years 11 months ago
2008
This paper examines the estimation of global term weights (such as IDF) in information retrieval scenarios where a global view on the collection is not available. In particular, t...
DEXAW
2010
IEEE
13 years 12 months ago
2010
IEEE
In many cases keywords from a restricted set of possible keywords have to be assigned to texts. A common way to find the best keywords is to rank terms occurring in the text accord...
ELPUB
1997
ACM
14 years 3 months ago
1997
ACM
We consider the generic hypermedia structure of a document to be a means of representing the document that allows it to be processed into a wide variety of presentations. Represen...