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JASIS
2011
98views more  JASIS 2011»
14 years 7 months ago
Hip and trendy: Characterizing emerging trends on Twitter
Twitter, Facebook, and other related systems that we call social awareness streams are rapidly changing the information and communication dynamics of our society. These systems, w...
Mor Naaman, Hila Becker, Luis Gravano
126
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JMLR
2011
125views more  JMLR 2011»
14 years 7 months ago
Approximate Marginals in Latent Gaussian Models
We consider the problem of improving the Gaussian approximate posterior marginals computed by expectation propagation and the Laplace method in latent Gaussian models and propose ...
Botond Cseke, Tom Heskes
JSAC
2011
126views more  JSAC 2011»
14 years 7 months ago
Spectrum Management in Multiuser Cognitive Wireless Networks: Optimality and Algorithm
Abstract— Spectrum management is used to improve performance in multiuser communication system, e.g., cognitive radio or femtocell networks, where multiuser interference can lead...
Chee Wei Tan, S. Friedland, Steven H. Low
91
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JUCS
2011
85views more  JUCS 2011»
14 years 7 months ago
Visualizing and Analyzing the Quality of XML Documents
: In this paper we introduce eXVisXML, a visual tool to explore documents annotated with the mark-up language XML, in order to easily perform over them tasks as knowledge extractio...
Daniela Carneiro da Cruz, Pedro Rangel Henriques
TKDE
2011
280views more  TKDE 2011»
14 years 7 months ago
Locally Consistent Concept Factorization for Document Clustering
—Previous studies have demonstrated that document clustering performance can be improved significantly in lower dimensional linear subspaces. Recently, matrix factorization base...
Deng Cai, Xiaofei He, Jiawei Han