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» A cluster validity framework for genome expression data
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BMCBI
2010
155views more  BMCBI 2010»
13 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
SIGMOD
2006
ACM
238views Database» more  SIGMOD 2006»
14 years 6 months ago
Continuous monitoring of top-k queries over sliding windows
Given a dataset P and a preference function f, a top-k query retrieves the k tuples in P with the highest scores according to f. Even though the problem is well-studied in convent...
Kyriakos Mouratidis, Spiridon Bakiras, Dimitris Pa...
ICAC
2008
IEEE
14 years 1 months ago
Power and Performance Management of Virtualized Computing Environments Via Lookahead Control
— There is growing incentive to reduce the power consumed by large-scale data centers that host online services such as banking, retail commerce, and gaming. Virtualization is a ...
Dara Kusic, Jeffrey O. Kephart, James E. Hanson, N...
WISE
2005
Springer
14 years 8 days ago
A Web Recommendation Technique Based on Probabilistic Latent Semantic Analysis
Web transaction data between Web visitors and Web functionalities usually convey user task-oriented behavior pattern. Mining such type of clickstream data will lead to capture usag...
Guandong Xu, Yanchun Zhang, Xiaofang Zhou
SAS
2004
Springer
14 years 1 days ago
On Logics of Aliasing
Abstract. In this paper we investigate the existence of a deductive veri cation method based on a logic that describes pointer aliasing. The main idea of such a method is that the ...
Marius Bozga, Radu Iosif, Yassine Lakhnech