301 search results - page 17 / 61 » Topic models with power-law using Pitman-Yor process |
190
click to vote
CVPR
2008
IEEE
16 years 7 months ago
2008
IEEE
We propose a novel nonparametric Bayesian model, Dual Hierarchical Dirichlet Processes (Dual-HDP), for trajectory analysis and semantic region modeling in surveillance settings, i...
159
click to vote
KDD
2002
ACM
16 years 6 months ago
2002
ACM
The rapid growth of the world wide web had made the problem of topic speci c resource discovery an important one in recent years. In this problem, it is desired to nd web pages wh...
175
click to vote
HICSS
2005
IEEE
15 years 11 months ago
2005
IEEE
Abstract— The Topic Detection and Tracking (TDT) research community investigates information retrieval methods for organizing a constantly arriving stream of news articles by the...
166
click to vote
IJCAI
2007
15 years 7 months ago
2007
A key problem in reinforcement learning is finding a good balance between the need to explore the environment and the need to gain rewards by exploiting existing knowledge. Much ...
145
click to vote
EACL
2003
ACL Anthology
15 years 7 months ago
2003
ACL Anthology
In this paper we present some lessons learned from building vizsla, the keyword search and topic classification system used on the largest Hungarian portal, [origo.hu]. Based on ...