224 search results - page 16 / 45 » Semi-parametric and Non-parametric Term Weighting for Inform... |
SIGIR
2008
ACM
13 years 7 months ago
2008
ACM
Accurate web page classification often depends crucially on information gained from neighboring pages in the local web graph. Prior work has exploited the class labels of nearby p...
RECSYS
2010
ACM
13 years 8 months ago
2010
ACM
We present and evaluate various content-based recommendation models that make use of user and item profiles defined in terms of weighted lists of social tags. The studied approach...
SIGIR
2008
ACM
13 years 7 months ago
2008
ACM
We present a novel passage-based approach to re-ranking documents in an initially retrieved list so as to improve precision at top ranks. While most work on passage-based document...
WSDM
2010
ACM
14 years 5 months ago
2010
ACM
Modeling query concepts through term dependencies has been shown to have a significant positive effect on retrieval performance, especially for tasks such as web search, where rel...
CIKM
2007
Springer
14 years 2 months ago
2007
Springer
The term frequency normalisation parameter sensitivity is an important issue in the probabilistic model for Information Retrieval. A high parameter sensitivity indicates that a sl...