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» An Information-Based Theory of Conditionals
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MP
2008
126views more  MP 2008»
15 years 6 months ago
Geometry of interpolation sets in derivative free optimization
We consider derivative free methods based on sampling approaches for nonlinear optimization problems where derivatives of the objective function are not available and cannot be dir...
Andrew R. Conn, Katya Scheinberg, Luís N. V...
SIGIR
2008
ACM
15 years 6 months ago
A unified and discriminative model for query refinement
This paper addresses the issue of query refinement, which involves reformulating ill-formed search queries in order to enhance relevance of search results. Query refinement typica...
Jiafeng Guo, Gu Xu, Hang Li, Xueqi Cheng
ALIFE
2005
15 years 6 months ago
State Aggregation and Population Dynamics in Linear Systems
We consider complex systems that are composed of many interacting elements, evolving under some dynamics. We are interested in characterizing the ways in which these elements may b...
Jonathan E. Rowe, Michael D. Vose, Alden H. Wright
KDD
2004
ACM
112views Data Mining» more  KDD 2004»
16 years 6 months ago
A rank sum test method for informative gene discovery
Finding informative genes from microarray data is an important research problem in bioinformatics research and applications. Most of the existing methods rank features according t...
Lin Deng, Jian Pei, Jinwen Ma, Dik Lun Lee
SIGMOD
2009
ACM
139views Database» more  SIGMOD 2009»
16 years 6 months ago
Detecting and resolving unsound workflow views for correct provenance analysis
views abstract groups of tasks in a workflow into high level composite tasks, in order to reuse sub-workflows and facilitate provenance analysis. However, unless a view is careful...
Peng Sun, Ziyang Liu, Susan B. Davidson, Yi Chen