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152
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INFORMS
2010
15 years 4 months ago
2010
Two-step MIR inequalities are valid inequalities derived from a facet of a simple mixedinteger set with three variables and one constraint. In this paper we investigate how to eff...
171
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SIAMJO
2010
15 years 1 months ago
2010
We present a general semidefinite relaxation scheme for general n-variate quartic polynomial optimization under homogeneous quadratic constraints. Unlike the existing sum-of-squar...
160
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FCT
2009
Springer
16 years 1 months ago
2009
Springer
In social network theory, a simple graph G is called k-role assignable if there is a surjective mapping that assigns a number from {1, . . . , k} called a role to each vertex of G ...
162
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ICDM
2008
IEEE
16 years 1 months ago
2008
IEEE
In this work, we study a visual data mining problem: Given a set of discovered overlapping submatrices of interest, how can we order the rows and columns of the data matrix to bes...
157
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ICC
2007
IEEE
16 years 1 months ago
2007
IEEE
Abstract— Coverage is a fundamental problem in sensor networks. In this paper, we addressed the coverage problem from two different view points and refer to them as the worst and...