EU/ME - the metaheuristics community

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EU/ME - the metaheuristics community

Webminar: Maria soto's PhD defense - 29 September 2011 - 10h (GMT +2)

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Memory allocation in embedded systems is one of the main challenges that electronic designers have to face. This part, rather difficult to handle is often left to the compiler with which automatic rules are applied. Nevertheless, an optimal allocation of data to memory banks may lead to great savings in terms of running time and energy consumption. This thesis addresses various versions of the memory allocation problem. For each studied version, the number of constraints in the problem increases and thus the complexity and difficulty to solve it. The number of memory banks, the bank capacities, the size and number of access to data structures, and the conflicting data structures at each time interval are the main constraints presented in the memory allocation problem. In this work, besides some theoretical properties and results, we present ILP formulations and some metaheuristics implemented for each version of the memory allocation problem. Also, we assess the effectiveness of our metaheuristics with the exact methods and other literature metaheuristics with the aim of highlighting what makes the success of metaheuristics for this problem.

Last Updated on Wednesday, 28 September 2011 12:57 Read more...
 

CFP - Mini Symposium Meta-heuristic Approaches in Design and Analysis of Structures

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Since designers and managers want to find the “best” solutions, design problems and management decisions are always coupled with optimization. That is why meta-heuristic techniques are being increasingly used for solving structural design and maintenance management problems. Meanwhile, application of meta-heuristic algorithms to analysis problems formed an emerging method in combination with the use of minimum energy principle and the resulting method has proved to be very promising in being an alternative to classical methods. This mini symposium aims to bring together structural designers, managers and structural analists who use meta-heuristic algorithms in their works.

Last Updated on Tuesday, 27 September 2011 13:34 Read more...
 

CFP - EvoCOMPLEX 2012

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Complex systems are ubiquitous in physics, economics, sociology, biology, computer science, and many other scientific areas. Typically, a complex system is composed of smaller aggregated components, whose interaction and interconnectedness are non-trivial (e.g., interactions can be high-dimensional and non-linear, and/or the connectivity can exhibit non-trivial topological features such as power-law degree distribution, and high clustering coefficient). This leads to emergent properties of the system, not anticipated by its isolated components. Furthermore, when the system behaviour is studied form a temporal perspective, self-organisation patterns typically arise.

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Journal of Heuristics 17(5), 2011

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Biased random-key genetic algorithms for combinatorial optimization

by José Fernando Gonçalves and Mauricio G. C. Resende

Abstract

Random-key genetic algorithms were introduced by Bean (ORSA J. Comput. 6:154–160, 1994) for solving sequencing problems in combinatorial optimization. Since then, they have been extended to handle a wide class of combinatorial optimization problems. This paper presents a tutorial on the implementation and use of biased random-key genetic algorithms for solving combinatorial optimization problems. Biased random-key genetic algorithms are a variant of random-key genetic algorithms, where one of the parents used for mating is biased to be of higher fitness than the other parent. After introducing the basics of biased random-key genetic algorithms, the paper discusses in some detail implementation issues, illustrating the ease in which sequential and parallel heuristics based on biased random-key genetic algorithms can be developed. A survey of applications that have recently appeared in the literature is also given.

Last Updated on Monday, 26 September 2011 05:59 Read more...
 

EURO 2012 - Conference presentation

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Join the EURO 2012 conference that will be held in Vilnius, July 8-11, 2012. As usual, EU/ME will organize a large stream with several sessions where you will find your place. If you want to organize a session, do not hesitate to contact This e-mail address is being protected from spambots. You need JavaScript enabled to view it or This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Last Updated on Thursday, 08 September 2011 06:33 Read more...
 


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