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ICDM
2007
IEEE
133views Data Mining» more  ICDM 2007»
15 years 4 months ago
Topical N-Grams: Phrase and Topic Discovery, with an Application to Information Retrieval
Most topic models, such as latent Dirichlet allocation, rely on the bag-of-words assumption. However, word order and phrases are often critical to capturing the meaning of text in...
Xuerui Wang, Andrew McCallum, Xing Wei
CIKM
2010
Springer
14 years 8 months ago
Combining link and content for collective active learning
In this paper, we study a novel problem Collective Active Learning, in which we aim to select a batch set of "informative" instances from a networking data set to query ...
Lixin Shi, Yuhang Zhao, Jie Tang
LREC
2008
139views Education» more  LREC 2008»
14 years 11 months ago
Experiments to Investigate the Connection between Case Distribution and Topical Relevance of Search Terms in an Information Retr
We have performed a set of experiments made to investigate the utility of morphological analysis to improve retrieval of documents written in languages with relatively large morph...
Jussi Karlgren, Hercules Dalianis, Bart Jongejan
MM
2010
ACM
151views Multimedia» more  MM 2010»
14 years 10 months ago
Explicit and implicit concept-based video retrieval with bipartite graph propagation model
The major scientific problem for content-based video retrieval is the semantic gap. Generally speaking, there are two appropriate ways to bridge the semantic gap: the first one is...
Lei Bao, Juan Cao, Yongdong Zhang, Jintao Li, Ming...
CIKM
2008
Springer
14 years 12 months ago
A survey of pre-retrieval query performance predictors
The focus of research on query performance prediction is to predict the effectiveness of a query given a search system and a collection of documents. If the performance of queries...
Claudia Hauff, Djoerd Hiemstra, Franciska de Jong