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» Evaluation methods for topic models
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IEICET
2008
110views more  IEICET 2008»
14 years 9 months ago
Language Modeling Using PLSA-Based Topic HMM
In this paper, we propose a PLSA-based language model for sports live speech. This model is implemented in unigram rescaling technique that combines a topic model and an n-gram. I...
Atsushi Sako, Tetsuya Takiguchi, Yasuo Ariki
ICML
2010
IEEE
14 years 10 months ago
Conditional Topic Random Fields
Generative topic models such as LDA are limited by their inability to utilize nontrivial input features to enhance their performance, and many topic models assume that topic assig...
Jun Zhu, Eric P. Xing
ACL
2007
14 years 11 months ago
Finding document topics for improving topic segmentation
Topic segmentation and identification are often tackled as separate problems whereas they are both part of topic analysis. In this article, we study how topic identification can...
Olivier Ferret
COLING
2008
14 years 11 months ago
Modeling Chinese Documents with Topical Word-Character Models
As Chinese text is written without word boundaries, effectively recognizing Chinese words is like recognizing collocations in English, substituting characters for words and words ...
Wei Hu, Nobuyuki Shimizu, Hiroshi Nakagawa, Huanye...
SIGIR
2008
ACM
14 years 9 months ago
A study of methods for negative relevance feedback
Negative relevance feedback is a special case of relevance feedback where we do not have any positive example; this often happens when the topic is difficult and the search result...
Xuanhui Wang, Hui Fang, ChengXiang Zhai