Results 201 to 210 of about 97,711 (239)

Clustering using Cuckoo search levy flight

2016 International Conference on Advances in Computing, Communications and Informatics (ICACCI), 2016
Clustering of Web document has become a vital task, due to the tremendous amount of information that is available on web today. The task of finding suitable information with less time has become a big challenge in information retrieval. So, it's very much necessary to adopt a method that can be used organize the information well.
Aishwarya Palaiah, Akshata H Prabhu, Reetika Agrawal, S. Natarajan   +3 more
openaire   +1 more source

Are human scanpaths Levy flights?

9th International Conference on Artificial Neural Networks: ICANN '99, 1999
Introduces a phenomenological model for the generation of human scanpaths. Scanpaths, the succession of rapid eye-movements (saccades), are treated as realizations of a stochastic process in a random quenched saliency field with prespecified covariance structure.
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Levy flights for improved Ladar scanning

2010 IEEE International Conference on Imaging Systems and Techniques, 2010
A new approach has been used to improve Ladar performance in real time applications based on the use of Levy statistics. This approach speeds up target detection and does not require a full scan of the field of view and the subsequent data processing.
Ali Adnan Al-Temeemy, J. W. Spencer, J. F. Ralph   +2 more
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Modified Slime Mould Algorithm via Levy Flight

2020 13th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI), 2020
The slime mould algorithm (SMA) is a recently developed meta-heuristic optimization algorithm which is based on the oscillation mode of slime mould in nature. However, the SMA is often trapped in local optima for global continuous optimization problems.
Cui, Zhesen, Hou, Xiaoleri, Zhou, Hu, Lian, Wei, Wu, Jinran   +4 more
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Feature selection via competitive levy flights

2016 International Joint Conference on Neural Networks (IJCNN), 2016
Evolutionary meta-heuristics are designed for optimization using population with selection and mutation operators. Novelty of our approach is based on competition of various operators from mutation portfolio. Resulting meta-heuristic is successfully tested on the feature selection task: searching for a sparse sub-model having the best possible value by
Matej Mojzes, Martin Klimt, Jaromir Kukal, Ivo Bukovsky, Jan Vrba, Jan Pitel   +5 more
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WSAR with Levy Flight for Constrained Optimization

2022
The Levy distribution, which represents a form of random walk (Levy flight) consisting of a series of consecutive random steps, has recently been demonstrated to improve the performance of metaheuristic algorithms. Through consecutive random steps, Levy flight is particularly beneficial for undertaking massive "jump" operations that allow the search to
Adil Baykasoğlu, Mümin Emre Şenol
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A LEVY FLIGHT–RANDOM WALK MODEL FOR BIOTURBATION

Environmental Toxicology and Chemistry, 2002
Abstract Levy flights are employed in a lattice model of contaminant migration by bioturbation, the reworking of sediment by benthic organisms. The model couples burrowing, foraging, and conveyor-belt feeding with molecular diffusion. The model correctly predicts a square-root dependence on bioturbation rates over a wide range of biomass
Danny Reible, Sanat Mohanty
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Levy flights: Variations on a theme

Physica D: Nonlinear Phenomena, 1989
Abstract Levy's original ideas on limit distributions for sums of identically distributed random variables with infinite second moments are applied to a variety of topics including generating nondifferentiable lacunary series, the Riemann hypothesis, and turbulent diffusion.
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Levy flight of atoms in collision cascades

EPL (Europhysics Letters), 2008
In this work we analyze the ballistic phase of displacement cascades. Monte Carlo simulations performed with realistic cross-sections were used to calculate the probability density function, pL(l), describing the length traveled by a particle between two successive collisions within the binary collision approximation framework.
D. Simeone, L. Luneville, J. P. Both
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Adsorbed polymers and node-avoiding Levy flights

Journal of Physics A: Mathematical and General, 1987
The authors discuss the conformation of a linear flexible polymer chain in the vicinity of an attractive wall. They show that the structure in the adsorbing plane may be analysed in terms of a node avoiding Levy flight. This provides a complementary insight to the scaling approach.
E Bouchaud, M Daoud
openaire   +1 more source