241 search results - page 31 / 49 » Learning effective ranking functions for newsgroup search |
IJKL
2008
13 years 7 months ago
2008
: Elaborations of Competence-based Knowledge Space Theory (CbKST) incorporate skills that refer to the conceptual information of the domain as well as to the activities learners ar...
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...
MM
2009
ACM
14 years 10 days ago
2009
ACM
Content Based Image Retrieval (CBIR) has become one of the most active research areas in computer science. Relevance feedback is often used in CBIR systems to bridge the semantic ...
AAAI
1994
13 years 9 months ago
1994
To navigate effectively, an autonomous agent must be able to quickly and accurately determine its current location. Given an initial estimate of its position (perhaps based on dea...
WWW
2008
ACM
14 years 8 months ago
2008
ACM
Community Question Answering has emerged as a popular and effective paradigm for a wide range of information needs. For example, to find out an obscure piece of trivia, it is now ...