نتایج جستجو برای: الگوریتم simulated annealing sa

تعداد نتایج: 194674  

Journal: :Expert Syst. Appl. 2011
Shih-Wei Lin Vincent F. Yu Chung-Cheng Lu

In this study, we consider the application of a simulated annealing (SA) heuristic to the truck and trailer routing problem with time windows (TTRPTW), an extension of the truck and trailer routing problem (TTRP). TTRP is a variant of the well-known well-studied vehicle routing problem (VRP). In TTRP, some customers can be serviced by either a complete vehicle (that is, a truck pulling a traile...

1999
GILDARDO SÁNCHEZ FERNANDO RAMOS JUAN FRAUSTO

It is presented an algorithm for locally-optimal path planning which is based on Kavraki and Latombe’s Probabilistic Roadmaps (PRM) and Simulated Annealing (SA). The PRM method is able to generate collision-free paths in a very short time (once that the roadmap has been constructed). However, when generating the paths, it is not taken into consideration any optimization criteria. It means that ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران 1378

پس از پدید آمدن شبکه های بهم پیوسته و بخصوص شبکه های منطقه ای، نوع جدیدی از پایداری مورد توجه قرار گرفت که به دینامیک سیستم و فرکانس های طبیعی آن مربوط می شود و پایداری دینامیکی نام دارد. پدیده های تشدید زیر سنکرون و نوسانات فرکانس پایین از مظاهر این نوع پایداری هستند که در این پایان نامه نوسانات فرکانس پایین حاصل از مودهای الکترومکانیکی ضعیف سیستم مورد بررسی قرار گرفته است . ابتدا بحثی کلی روی...

Journal: :Kybernetika 1999
Rita Almeida Ribeiro Fernando Moura-Pires

This paper shows how the simulated annealing (SA) algorithm provides a simple tool for solving fuzzy optimization problems. Often, the issue is not so much how to fuzzify or remove the conceptual imprecision, but which tools enable simple solutions for these intrinsically uncertain problems. A well-known linear programming example is used to discuss the suitability of the SA algorithm for solvi...

2008
X. Wang X. Z. Gao S. J. Ovaska

This paper proposes a hybrid optimization method based on the fusion of the Simulated Annealing (SA) and Clonal Selection Algorithm (CSA), in which the SA is embedded in the CSA to enhance its search capability. The novel optimization algorithm is also employed to deal with several nonlinear benchmark functions as well as a practical engineering design problem. Simulation results demonstrate th...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2005
Adam Lipowski Dorota Lipowska

We study a traveling salesman problem where the path is optimized with a cost function that includes its length L as well as a certain measure C of its distance from the geometrical center of the graph. Using simulated annealing (SA) we show that such a problem has a transition point that separates two phases differing in the scaling behavior of L and C, in efficiency of SA, and in the shape of...

Journal: :Oper. Res. Lett. 2010
Gerald Paul

For almost two decades the question of whether tabu search (TS) or simulated annealing (SA) performs better for the quadratic assignment problem has been unresolved. To answer this question satisfactorily, we compare performance at various values of targeted solution quality, running each heuristic at its optimal number of iterations for each target. We find that for a number of varied problem ...

2015
Mengling Zhao Hongwei Liu

To solve premature phenomenon and falling into local optimum of genetic algorithm, the simulated annealing algorithm is introduced to the genetic algorithm and a simulated annealing is presented based on genetic clustering algorithm, a new effective SA, crossover operator and mutation operator proposed for fitting the partition-based chromosome coding. In addition, the Euclidean distance is rep...

2010
Farimah Mokhatab Rafiei

Economic lot scheduling problem has been an important topic in production planning and scheduling research for more than four decades. The problem is known to be NP-hard due to its combinatorial nature. In this paper, a meta-heuristics algorithm based on Simulated Annealing (SA) is proposed. Besides on explaining how to use SA, the effects of changing in production frequency on sequence and als...

Ali Nazemi Ashkan Hafezalkotob Seyed Hosein Mousavi

With the formation of the competitive electricity markets in the world, optimization of bidding strategies has become one of the main discussions in studies related to market designing. Market design is challenged by multiple objectives that need to be satisfied. The solution of those multi-objective problems is searched often over the combined strategy space, and thus requires the simultaneous...

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