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RSCTC
1998
Springer
129views Fuzzy Logic» more  RSCTC 1998»
14 years 2 months ago
On Generalizing Pawlak Approximation Operators
This paper reviews and discusses generalizations of Pawlak rough set approximation operators in mathematical systems, such as topological spaces, closure systems, lattices, and pos...
Y. Y. Yao
SODA
2012
ACM
297views Algorithms» more  SODA 2012»
12 years 7 days ago
Constant factor approximation algorithm for the knapsack median problem
We give a constant factor approximation algorithm for the following generalization of the k-median problem. We are given a set of clients and facilities in a metric space. Each fa...
Amit Kumar
ICCV
2011
IEEE
12 years 9 months ago
Complementary Hashing for Approximate Nearest Neighbor Search
Recently, hashing based Approximate Nearest Neighbor (ANN) techniques have been attracting lots of attention in computer vision. The data-dependent hashing methods, e.g., Spectral...
Hao Xu, Jingdong Wang, Zhu Li, Gang Zeng, Shipeng ...
JCSS
2010
155views more  JCSS 2010»
13 years 8 months ago
Approximation and fixed-parameter algorithms for consecutive ones submatrix problems
We develop an algorithmically useful refinement of a forbidden submatrix characterization of 0/1-matrices fulfilling the Consecutive Ones Property (C1P). This characterization ...
Michael Dom, Jiong Guo, Rolf Niedermeier
APPML
2007
47views more  APPML 2007»
13 years 10 months ago
Existence and bounds for the half-moment entropy approximation to radiative transfer
We establish existence, uniqueness and a priori bounds for the half moment entropy approximation to radiative heat transfer. The bounds are physically reasonable and underline the...
Martin Frank, René Pinnau