نتایج جستجو برای: adaptive mutation

تعداد نتایج: 485425  

Journal: :Molecular Biology and Evolution 1998

2013
Chengwen Zhang Zhaoyong Xun Jian Kuang Bo Cheng Lei Zhang

An elitist selection adaptive Genetic Algorithm is presented to select an optimal cloud service composite plan from a lot of composite plans on the basis of global Qualityof-Service (QoS) constraints. In this Algorithm, some strategies are provided to improve convergence and population diversity and raise fitness result. These strategies include an elitist selection strategy, an individual sele...

2002
Andreas C. Koenig

Evolutionary Algorithms (EAs) have recently been successfully applied to numerical optimization problems. A major obstacle in the application of EAs has been the relatively slow convergence rate. This becomes more pronounced when the functions to be optimized become complex and numerically intensive. In this paper five different methods of speeding up EA convergence are reviewed. These include ...

Journal: :PLoS Biology 2004
P. J Hastings Andrew Slack Joseph F Petrosino Susan M Rosenberg

"Adaptive mutation" denotes a collection of processes in which cells respond to growth-limiting environments by producing compensatory mutants that grow well, apparently violating fundamental principles of evolution. In a well-studied model, starvation of stationary-phase lac(-)Escherichia coli cells on lactose medium induces Lac(+)revertants at higher frequencies than predicted by usual mutati...

2014
Nidhi Sindhwani Manjit Singh D. J. Love J. V. Krogmeier A. S. Madhukumar E. Kurniawan G. L. Stuber J. R. Barry S. W. McLaughlin T. G Pratt M. A. Ingram A. Gorokhov A. J. Paulraj

Multiple input multiple output techniques are considered attractive for future wireless communication systems, due to the continuing demand for high data rates, spectral efficiency, suppress interference ability and robustness of transmission. MIMO-OFDM is very helpful to transmit high data rate in wireless transmission and provides good maximum system capacity by getting the advantages of both...

Journal: :CoRR 2014
Nidhi Sindhwani Manjit Singh

Multiple input multiple output techniques are considered attractive for future wireless communication systems, due to the continuing demand for high data rates, spectral efficiency, suppress interference ability and robustness of transmission. MIMO-OFDM is very helpful to transmit high data rate in wireless transmission and provides good maximum system capacity by getting the advantages of both...

Journal: :Iet Radar Sonar and Navigation 2021

The performance of the distributed coherent aperture radar (DCAR) is heavily influenced by antenna positions. Therefore, an position optimization method proposed based on adaptive genetic algorithm with a self-supervised differential operator. In method, positions are firstly coded as chromosomes population multiple constraints, and reciprocal peak side lobe level (PSLL) beam pattern calculated...

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