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WWW
2008
ACM
16 years 7 months ago
Learning to classify short and sparse text & web with hidden topics from large-scale data collections
This paper presents a general framework for building classifiers that deal with short and sparse text & Web segments by making the most of hidden topics discovered from larges...
Xuan Hieu Phan, Minh Le Nguyen, Susumu Horiguchi
WWW
2007
ACM
16 years 7 months ago
C-ODO: an OWL Meta-model for Collaborative Ontology Design
The design and maintenance of ontologies is a complex social collaborative activity, and this is true especially for semantic-web ontologies. On the one hand, such activity calls ...
Aldo Gangemi, Jos Lehmann, Valentina Presutti, Mal...
KDD
2005
ACM
165views Data Mining» more  KDD 2005»
16 years 7 months ago
Co-clustering by block value decomposition
Dyadic data matrices, such as co-occurrence matrix, rating matrix, and proximity matrix, arise frequently in various important applications. A fundamental problem in dyadic data a...
Bo Long, Zhongfei (Mark) Zhang, Philip S. Yu
SIGMOD
2009
ACM
201views Database» more  SIGMOD 2009»
16 years 7 months ago
Cost based plan selection for xpath
We present a complete XPath cost-based optimization and execution framework and demonstrate its effectiveness and efficiency for a variety of queries and datasets. The framework i...
Haris Georgiadis, Minas Charalambides, Vasilis Vas...
SIGMOD
2008
ACM
131views Database» more  SIGMOD 2008»
16 years 6 months ago
Discovering topical structures of databases
The increasing complexity of enterprise databases and the prevalent lack of documentation incur significant cost in both understanding and integrating the databases. Existing solu...
Wensheng Wu, Berthold Reinwald, Yannis Sismanis, R...
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