Search Results - subject:"Algorithms"

COLLABORATIVE PLANNING IN SUPPLY CHAINS BY LAGRANGIAN RELAXATION AND GENETIC ALGORITHMS

NIE, LANSHUN; XU, XIAOFEI; ZHAN, DECHEN - In: International Journal of Information Technology & … 07 (2008) 01, pp. 183-197

A collaborative planning framework combining the Lagrangian Relaxation method and Genetic Algorithms is developed to …-separable sub-problems based on the separability of it. Genetic Algorithms was incorporated into Lagrangian Relaxation method to …

Persistent link: https://www.econbiz.de/10004971676

ADAPTIVE INVESTMENT STRATEGIES FOR PERIODIC ENVIRONMENTS

NAVARRO-BARRIENTOS, J.-EMETERIO - In: Advances in Complex Systems (ACS) 11 (2008) 05, pp. 761-787

In this paper, an adaptive investment strategy for environments with periodic returns on investment is presented. In this approach, an investment model is considered where the agent decides at every time step the proportion of wealth to invest in a risky asset, keeping the rest of the budget in...

Persistent link: https://www.econbiz.de/10004977694

A comparative representation approach to modern heuristic search methods in a job shop

Dominic, P.D.D.; Mahmood, Ahmad Kamil Bin; Parthiban, P.; … - In: International Journal of Logistics Economics and … 1 (2008) 3/4, pp. 396-409

The job shop problem is among the class of non-deterministic polynomial time hard combinatorial problems. This research article addresses the problem of static job shop scheduling on the job-based representation and the rule-based representations. The popular search techniques, such as the...

Persistent link: https://www.econbiz.de/10010816512

A design optimization tool of earth-to-air heat exchanger using a genetic algorithm

Kumar, Rakesh; Sinha, A.R.; Singh, B.K.; Modhukalya, U. - In: Renewable Energy 33 (2008) 10, pp. 2282-2288

Advancement in genetic algorithm (GA) optimization tools for design applications, coupled with techniques of soft computing, have led to new possibilities in the way computers interact with the optimization process. In this paper, the concept of goal-oriented GA has been used to design a tool...

Persistent link: https://www.econbiz.de/10010805122

An Improved Genetic Algorithm-Simulated Annealing Hybrid Algorithm for the Optimization of Multiple Reservoirs

Li, Xun-Gui; Wei, Xia - In: Water Resources Management 22 (2008) 8, pp. 1031-1049

-reservoir systems. The proposed improved genetic algorithm-simulated annealing (IGA-SA) which combines genetic algorithms (GAs) and the …

Persistent link: https://www.econbiz.de/10010794634

Multi-criteria optimization in nonlinear predictive control

Laabidi, Kaouther; Bouani, Faouzi; Ksouri, Mekki - In: Mathematics and Computers in Simulation (MATCOM) 76 (2008) 5, pp. 363-374

genetic algorithms (GAs) are considered. The (ANNs) are used to determine process models at each operating level; the control …

Persistent link: https://www.econbiz.de/10010870385

On the convergence of generalized Schwarz algorithms for solving obstacle problems with elliptic operators

Chen, Gaojie; Zeng, Jinping - In: Mathematical Methods of Operations Research 67 (2008) 3, pp. 455-469

In this paper, multiplicative and additive generalized Schwarz algorithms for solving obstacle problems with elliptic … operators are developed and analyzed. Compared with the classical Schwarz algorithms, in which the subproblems are coupled by … the Dirichlet boundary conditions, the generalized Schwarz algorithms use Robin conditions with parameters as the …

Persistent link: https://www.econbiz.de/10010950115

Approximation algorithms for a vehicle routing problem

Krumke, Sven; Saliba, Sleman; Vredeveld, Tjark; … - In: Mathematical Methods of Operations Research 68 (2008) 2, pp. 333-359

In this paper we investigate a vehicle routing problem motivated by a real-world application in cooperation with the German Automobile Association (ADAC). The general task is to assign service requests to service units and to plan tours for the units such as to minimize the overall cost. The...

Persistent link: https://www.econbiz.de/10010999920

An adaptive Monte Carlo integration algorithm with general division approach

Alrefaei, Mahmoud H.; Abdul-Rahman, Houssam M. - In: Mathematics and Computers in Simulation (MATCOM) 79 (2008) 1, pp. 49-59

We propose an adaptive Monte Carlo algorithm for estimating multidimensional integrals over a hyper-rectangular region. The algorithm uses iteratively the idea of separating the domain of integration into 2ssubregions. The proposed algorithm can be applied directly to estimate the integral using...

Persistent link: https://www.econbiz.de/10010748658

Pattern recognition system based on empirical knowledge: Sandalwood and camphoraceous odours application

Kissi, Mohamed; Ramdani, Mohammed; Bouchon-Meunier, … - In: Mathematics and Computers in Simulation (MATCOM) 77 (2008) 5, pp. 453-463

expert. Such rules account for the shape and the size of the molecules. Their adjustment by means of genetic algorithms (GAs …

Persistent link: https://www.econbiz.de/10010748690