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ICML
2008
IEEE
14 years 10 months ago
Expectation-maximization for sparse and non-negative PCA
We study the problem of finding the dominant eigenvector of the sample covariance matrix, under additional constraints on the vector: a cardinality constraint limits the number of...
Christian D. Sigg, Joachim M. Buhmann
KDD
2005
ACM
145views Data Mining» more  KDD 2005»
14 years 10 months ago
Using and Learning Semantics in Frequent Subgraph Mining
The search for frequent subgraphs is becoming increasingly important in many application areas including Web mining and bioinformatics. Any use of graph structures in mining, howev...
Bettina Berendt
EDBT
2006
ACM
191views Database» more  EDBT 2006»
14 years 10 months ago
Parallelizing Skyline Queries for Scalable Distribution
Skyline queries help users make intelligent decisions over complex data, where different and often conflicting criteria are considered. Current skyline computation methods are rest...
Ping Wu, Caijie Zhang, Ying Feng, Ben Y. Zhao, Div...
CIKM
2005
Springer
14 years 3 months ago
Versatile structural disambiguation for semantic-aware applications
In this paper, we propose a versatile disambiguation approach which can be used to make explicit the meaning of structure based information such as XML schemas, XML document struc...
Federica Mandreoli, Riccardo Martoglia, Enrico Ron...
GCC
2005
Springer
14 years 3 months ago
SGII: Towards Semantic Grid-Based Enterprise Information Integration
To fully leverage the information from different data sources and applications, an enterprise needs a generic, interoperable and flexible infrastructure to integrate and coordinate...
Jingtao Zhou, Shusheng Zhang, Han Zhao, Mingwei Wa...