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BMCBI
2010
155views more  BMCBI 2010»
15 years 6 months ago
A flexible R package for nonnegative matrix factorization
Background: Nonnegative Matrix Factorization (NMF) is an unsupervised learning technique that has been applied successfully in several fields, including signal processing, face re...
Renaud Gaujoux, Cathal Seoighe
CGF
2010
121views more  CGF 2010»
15 years 6 months ago
GraphDice: A System for Exploring Multivariate Social Networks
Social networks collected by historians or sociologists typically have a large number of actors and edge attributes. Applying social network analysis (SNA) algorithms to these net...
Anastasia Bezerianos, Fanny Chevalier, Pierre Drag...
DASFAA
2004
IEEE
94views Database» more  DASFAA 2004»
15 years 10 months ago
On View Transformation Support for a Native XML DBMS
XML is becoming the standard data exchange format. View transformation of XML data is important and frequent operation in XML data integration and publishing. In schema-based view ...
Daofeng Luo, Ting Chen, Tok Wang Ling, Xiaofeng Me...
CVPR
2008
IEEE
16 years 8 months ago
Sparsity, redundancy and optimal image support towards knowledge-based segmentation
In this paper, we propose a novel approach to model shape variations. It encodes sparsity, exploits geometric redundancy, and accounts for the different degrees of local variation...
Salma Essafi, Georg Langs, Nikos Paragios
CBMS
1995
IEEE
15 years 10 months ago
Validation of a Large Medical Database
Complex clinical problems involving huge experimental evidence require a preliminary validation of observed data. This may avoid biasing due to incorrect sampling and clarify the ...
Guido Rovetta, Patrizia Monteforte, Gerolamo Bianc...