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991.
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This paper presents a hybrid metaheuristic approach (HMA) for solving the unconstrained binary quadratic programming (UBQP) problem. By incorporating a tabu search procedure into the framework of evolutionary algorithms, the proposed approach exhibits several distinguishing features, including a diversification-based combination operator and a distance-and-quality based replacement criterion for pool updating. The proposed algorithm is able to easily obtain the best known solutions for 31 large random instances up to 7000 variables (which no previous algorithm has done) and find new best solutions for three of nine instances derived from the set-partitioning problem, demonstrating the efficacy of our proposed algorithm in terms of both solution quality and computational efficiency. Furthermore, some key elements and properties of the HMA algorithm are also analyzed. 相似文献
994.
995.
Fred Kuttner 《Foundations of Physics》2008,38(2):188-190
Nauenberg’s extended critique of Quantum Enigma rests on fundamental misunderstandings. 相似文献
996.
Computer science and decision theory 总被引:1,自引:0,他引:1
Fred S. Roberts 《Annals of Operations Research》2008,163(1):209-253
This paper reviews applications in computer science that decision theorists have addressed for years, discusses the requirements
posed by these applications that place great strain on decision theory/social science methods, and explores applications in
the social and decision sciences of newer decision-theoretic methods developed with computer science applications in mind.
The paper deals with the relation between computer science and decision-theoretic methods of consensus, with the relation
between computer science and game theory and decisions, and with “algorithmic decision theory.” 相似文献
997.
Thierry Cazenave Flávio Dickstein Fred B. Weissler 《Nonlinear Analysis: Theory, Methods & Applications》2008
In this paper, we prove sharp blow up and global existence results for a heat equation with nonlinear memory. It turns out that the Fujita critical exponent is not the one which would be predicted from the scaling properties of the equation. 相似文献
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999.
David Sarauli Johannes Tanne Daniel Schäfer Ivo W. Schubart Fred Lisdat 《Electrochemistry communications》2009,11(12):2288-2291
The construction of new mediator-free and fully electroactive protein multilayer electrodes based on DNA and cyt c is demonstrated. The assembly is characterized by a rather high stability, effective electron transfer, and a tunability of the electroactive protein amount by the number of deposited cyt c layers. 相似文献
1000.
This paper presents a statistic for testing the hypothesis of elliptical symmetry. The statistic also provides a specialized test of multivariate normality. We obtain the asymptotic distribution of this statistic under the null hypothesis of multivariate normality, and give a bootstrapping procedure for approximating the null distribution of the statistic under an arbitrary elliptically symmetric distribution. We present simulation results to examine the accuracy of the asymptotic distribution and the performance of the bootstrapping procedure. Finally, for selected alternatives, we compare the power of our test statistic with that of recently proposed tests for elliptical symmetry given by Manzotti et al. [A statistic for testing the null hypothesis of elliptical symmetry, J. Multivariate Anal. 81 (2002) 274-285] and Schott [Testing for elliptical symmetry in covariance-matrix-based analyses, Statist. Probab. Lett. 60 (2002) 395-404], and with that of the well known tests for multivariate normality of Mardia [Measures of multivariate skewness and kurtosis with applications, Biometrika 57 (1970) 519-530] and Baringhaus and Henze [A consistent test for multivariate normality based on the empirical characteristic function, Metrika 35 (1988) 339-348]. 相似文献