144 search results - page 10 / 29 » Probabilistic models for discovering e-communities |
CORR
2012
Springer
12 years 4 months ago
2012
Springer
We present sparse topical coding (STC), a non-probabilistic formulation of topic models for discovering latent representations of large collections of data. Unlike probabilistic t...
KDD
2007
ACM
14 years 9 months ago
2007
ACM
Multinomial distributions over words are frequently used to model topics in text collections. A common, major challenge in applying all such topic models to any text mining proble...
ICPR
2004
IEEE
14 years 9 months ago
2004
IEEE
In this paper, we investigate the problem of automatic audio surveillance. This aspect of the surveillance, which extends the more investigated area of video surveillance, can be ...
ICCV
2007
IEEE
14 years 10 months ago
2007
IEEE
In this paper, we propose a novel approach for scene modeling. The proposed method is able to automatically discover the intermediate semantic concepts. We utilize Maximization of...
UM
2005
Springer
14 years 2 months ago
2005
Springer
Abstract. We propose an approach for modeling the navigational behavior of Web users based on task-level patterns. The discovered “tasks” are characterized probabilistically as...