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Performance of Differential Evolution and Particle Swarm Methods on Some Relatively Harder Multi-modal Benchmark Functions

Mishra, SK - Volkswirtschaftliche Fakultät, … - 2006

results show that DE (with the exponential crossover scheme) mostly fails to find the optimum of most of these functions. Of … as the dimension is increased. In case of DCS function, it works well up to m (dimension) = 5. When we use no crossover …-sum functions the advantage is clear. Whether crossover or no crossover, DE falters when the optimand function has some element of …

Persistent link: https://www.econbiz.de/10005835442

Multifractal Fourier detrended cross-correlation analysis of traffic signals

Zhao, Xiaojun; Shang, Pengjian; Lin, Aijing; Chen, Gang - In: Physica A: Statistical Mechanics and its Applications 390 (2011) 21, pp. 3670-3678

systematically investigate the multifractal cross-correlation of simulated and real traffic signals. The crossover locations are …

Persistent link: https://www.econbiz.de/10010589150

Criticality and tricriticality in ionic systems

Ciach, A.; Stell, G. - In: Physica A: Statistical Mechanics and its Applications 306 (2002) C, pp. 220-229

The origin of the tricritical point (tcp) in ionic solutions and its dependence on the short-range effective free energies (SR) are studied within a Landau–Ginzburg–Wilson approach. The tcp is associated with a continuous transition to a charge-ordered phase, in which the charge density...

Persistent link: https://www.econbiz.de/10010589251

A genetic algorithm for the 1D electron gas

Stoico, César O.; Renzi, Danilo G.; Vericat, Fernando - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 1, pp. 159-166

We show how to apply a genetic algorithm to describe the homogeneous electron gas. For simplicity we consider just the 1D case. The pair correlation function so obtained is compared with those found by using variational Monte Carlo and quantum hypernetted chain calculations and reported for the...

Persistent link: https://www.econbiz.de/10010591070

Statistical analysis of strait time index and a simple model for trend and trend reversal

Chen, Kan; Jayaprakash, C. - In: Physica A: Statistical Mechanics and its Applications 324 (2003) 1, pp. 258-265

for price changes larger than a threshold value proportional to T; this indicates that there is no uniform crossover to …

Persistent link: https://www.econbiz.de/10010591414

Encounter effects on the dynamics of fluctuations in phase separations of off-critically quenched binary systems

Enomoto, Yoshihisa; Tokuyama, Michio - In: Physica A: Statistical Mechanics and its Applications 232 (1996) 1, pp. 304-314

The encounter effect on the dynamics of fluctuations in phase separations of off-critically quenched binary systems is studied by performing three-dimensional computer simulations of the droplet growth model proposed recently by the authors. The dynamical behavior of the scattering structure...

Persistent link: https://www.econbiz.de/10010586960

Basis- and tripartition identification for quadratic programming and lineair complementary problems; From an interior solution to an optimal basis and viceversa

Berkelaar, A.B.; Jansen, B.; Roos, K.; Terlaky, T. - Erasmus University Rotterdam, Econometric Institute - 1996

Optimal solutions of interior point algorithms for linear and quadratic programming and linear complementarity problems provide maximal complementary solutions. Maximal complementary solutions can be characterized by optimal (tri)partitions. On the other hand, the solutions provided by...

Persistent link: https://www.econbiz.de/10008584830

Using Genetic Algorithms to Develop Strategies for the Prisoners Dilemma

Haider, Adnan - Volkswirtschaftliche Fakultät, … - 2005

of 20 strategies, fitness-proportional selection, single-point crossover with Pc=0.7, and mutation with Pm=0.001. …

Persistent link: https://www.econbiz.de/10008836750

Is research on marginal lands catching up? The case of unfavourable wheat growing environments*

Lantican, M.A.; Pingali, P.L.; Rajaram, S. - In: Agricultural Economics of Agricultural Economists 29 (2003) 3

. While initial gains came from crossover of varieties from favourable environments, targeted breeding efforts have …

Persistent link: https://www.econbiz.de/10011069306

An Approach for Summarizing Hindi Text Through a Hybrid Fuzzy Neural Network Algorithm

Anitha, J.; Reddy, P. V. G. D. Prasad; Babu, M. S. Prasad - In: Journal of Information & Knowledge Management (JIKM) 13 (2014) 04, pp. 1450036-1

Text summarization is one of the most discussed topic in the field in information exchange and retrieval. Recently, the need for local language based text summarization methods are increasing. In this paper, a method for text summarization in Hindi language is plotted with help of extraction...

Persistent link: https://www.econbiz.de/10011106332