4127 search results - page 35 / 826 » Evaluation methods for topic models |
EDM
2009
14 years 7 months ago
2009
This paper presents several methods to automatically detecting students' mental models in MetaTutor, an intelligent tutoring system that teaches students self-regulatory proce...
SDM
2010
SIAM
14 years 11 months ago
2010
SIAM
Enterprises depend on their information workers finding valuable information to be productive. However, existing enterprise search and recommendation systems can exploit few studi...
JACM
2010
14 years 8 months ago
2010
clustering of documents according to sharing of topics at multiple levels of abstraction. Given a corpus of documents, a posterior inference algorithm finds an approximation to a ...
ECIR
2009
Springer
15 years 7 months ago
2009
Springer
The aim of query-based sampling is to obtain a sufficient, representative sample of an underlying (text) collection. Current measures for assessing sample quality are too coarse gr...
AAAI
2008
15 years 3 days ago
2008
In this paper, we propose a novel approach to expand queries by exploring both location information and topic information of the queries. Users at different locations tend to have...