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682 results on '"Laredo J"'

2. Scaling in Concurrent Evolutionary Algorithms

Author

Merelo, Juan J., Laredo, J. L. J., Castillo, Pedro A., García-Valdez, José-Mario, Rojas-Galeano, Sergio, Barbosa, Simone Diniz Junqueira, Editorial Board Member, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Kotenko, Igor, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Yuan, Junsong, Founding Editor, Figueroa-García, Juan Carlos, editor, Duarte-González, Mario, editor, Jaramillo-Isaza, Sebastián, editor, Orjuela-Cañon, Alvaro David, editor, and Díaz-Gutierrez, Yesid, editor

Published
2019
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3. Exploring Concurrent and Stateless Evolutionary Algorithms

Author

Merelo, Juan J., Laredo, J. L. J., Castillo, Pedro A., García-Valdez, José-Mario, Rojas-Galeano, Sergio, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Kaufmann, Paul, editor, and Castillo, Pedro A., editor

Published
2019
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5. Distributed Evolutionary Computation using REST

Author

Castillo, P. A., Arenas, M. G., Mora, A. M., Laredo, J. L. J., Romero, G., Rivas, V. M, and Merelo, J. J.

Subjects
Computer Science - Neural and Evolutionary Computing
Abstract

This paper analises distributed evolutionary computation based on the Representational State Transfer (REST) protocol, which overlays a farming model on evolutionary computation. An approach to evolutionary distributed optimisation of multilayer perceptrons (MLP) using REST and language Perl has been done. In these experiments, a master-slave based evolutionary algorithm (EA) has been implemented, where slave processes evaluate the costly fitness function (training a MLP to solve a classification problem). Obtained results show that the parallel version of the developed programs obtains similar or better results using much less time than the sequential version, obtaining a good speedup., Comment: Paper 3 for the First International Workshop of Distributed Evolutionary computation in Informal Environments

Published
2011

6. KohonAnts: A Self-Organizing Ant Algorithm for Clustering and Pattern Classification

Author

Fernandes, C., Mora, A. M., Merelo, J. J., Ramos, V., and Laredo, J. L. J.

Subjects
Computer Science - Neural and Evolutionary Computing, Computer Science - Computer Vision and Pattern Recognition
Abstract

In this paper we introduce a new ant-based method that takes advantage of the cooperative self-organization of Ant Colony Systems to create a naturally inspired clustering and pattern recognition method. The approach considers each data item as an ant, which moves inside a grid changing the cells it goes through, in a fashion similar to Kohonen's Self-Organizing Maps. The resulting algorithm is conceptually more simple, takes less free parameters than other ant-based clustering algorithms, and, after some parameter tuning, yields very good results on some benchmark problems., Comment: Submitted to ALIFE XI

Published
2008

7. Improved evolutionary generation of XSLT stylesheets

Author

Garcia-Sanchez, Pablo, Laredo, J. L. J., Sevilla, J. P., Castillo, Pedro, and Merelo, J. J.

Subjects
Computer Science - Neural and Evolutionary Computing, Computer Science - Artificial Intelligence
Abstract

This paper introduces a procedure based on genetic programming to evolve XSLT programs (usually called stylesheets or logicsheets). XSLT is a general purpose, document-oriented functional language, generally used to transform XML documents (or, in general, solve any problem that can be coded as an XML document). The proposed solution uses a tree representation for the stylesheets as well as diverse specific operators in order to obtain, in the studied cases and a reasonable time, a XSLT stylesheet that performs the transformation. Several types of representation have been compared, resulting in different performance and degree of success., Comment: Accepted as poster at the GECCO-2008 conference

Published
2008

8. Evolving XSLT stylesheets

Author

Zorzano, Nestor, Merino, Daniel, Laredo, J. L. J., Sevilla, J. P., Garcia, Pablo, and Merelo, J. J.

Subjects
Computer Science - Neural and Evolutionary Computing, Computer Science - Programming Languages
Abstract

This paper introduces a procedure based on genetic programming to evolve XSLT programs (usually called stylesheets or logicsheets). XSLT is a general purpose, document-oriented functional language, generally used to transform XML documents (or, in general, solve any problem that can be coded as an XML document). The proposed solution uses a tree representation for the stylesheets as well as diverse specific operators in order to obtain, in the studied cases and a reasonable time, a XSLT stylesheet that performs the transformation. Several types of representation have been compared, resulting in different performance and degree of success., Comment: First draft, preparing for WCCI 2008

Published
2007

9. Self-adaptive Gossip Policies for Distributed Population-based Algorithms

Author

Laredo, J. L. J., Eiben, E. A., Schoenauer, M., Castillo, P. A., Mora, A. M., Fernandez, F., and Merelo, J. J.

Subjects
Computer Science - Distributed, Parallel, and Cluster Computing
Abstract

Gossipping has demonstrate to be an efficient mechanism for spreading information among P2P networks. Within the context of P2P computing, we propose the so-called Evolvable Agent Model for distributed population-based algorithms which uses gossipping as communication policy, and represents every individual as a self-scheduled single thread. The model avoids obsolete nodes in the population by defining a self-adaptive refresh rate which depends on the latency and bandwidth of the network. Such a mechanism balances the migration rate to the congestion of the links pursuing global population coherence. We perform an experimental evaluation of this model on a real parallel system and observe how solution quality and algorithm speed scale with the number of processors with this seamless approach., Comment: Submitted to Europar 2007

Published
2007

10. Browser-based distributed evolutionary computation: performance and scaling behavior

Author

Merelo, J. J., Mora-Garcia, Antonio, Laredo, J. L. J., Lupion, Juan, and Tricas, Fernando

Subjects
Computer Science - Distributed, Parallel, and Cluster Computing, Computer Science - Neural and Evolutionary Computing
Abstract

The challenge of ad-hoc computing is to find the way of taking advantage of spare cycles in an efficient way that takes into account all capabilities of the devices and interconnections available to them. In this paper we explore distributed evolutionary computation based on the Ruby on Rails framework, which overlays a Model-View-Controller on evolutionary computation. It allows anybody with a web browser (that is, mostly everybody connected to the Internet) to participate in an evolutionary computation experiment. Using a straightforward farming model, we consider different factors, such as the size of the population used. We are mostly interested in how they impact on performance, but also the scaling behavior when a non-trivial number of computers is applied to the problem. Experiments show the impact of different packet sizes on performance, as well as a quite limited scaling behavior, due to the characteristics of the server. Several solutions for that problem are proposed., Comment: Submitted to GECCO 2007

Published
2007

11. CHAC. A MOACO Algorithm for Computation of Bi-Criteria Military Unit Path in the Battlefield

Author

Mora, A. M., Merelo, J. J., Millan, C., Torrecillas, J., and Laredo, J. L. J.

Subjects
Computer Science - Multiagent Systems, Computer Science - Computational Complexity
Abstract

In this paper we propose a Multi-Objective Ant Colony Optimization (MOACO) algorithm called CHAC, which has been designed to solve the problem of finding the path on a map (corresponding to a simulated battlefield) that minimizes resources while maximizing safety. CHAC has been tested with two different state transition rules: an aggregative function that combines the heuristic and pheromone information of both objectives and a second one that is based on the dominance concept of multiobjective optimization problems. These rules have been evaluated in several different situations (maps with different degree of difficulty), and we have found that they yield better results than a greedy algorithm (taken as baseline) in addition to a military behaviour that is also better in the tactical sense. The aggregative function, in general, yields better results than the one based on dominance.

Published
2006

14. Dynamic Topologies for Particle Swarms

Author

Fernandes, Carlos M., Laredo, J. L. J., Merelo, J. J., Cotta, C., Rosa, A. C., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Nguyen, Ngoc Thanh, editor, Kowalczyk, Ryszard, editor, and Filipe, Joaquim, editor

Published
2016
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16. Dynamic and Partially Connected Ring Topologies for Evolutionary Algorithms with Structured Populations

Author

Fernandes, C. M., Laredo, J. L. J., Merelo, J. J., Cotta, C., Rosa, A. C., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Esparcia-Alcázar, Anna I., editor, and Mora, Antonio M., editor

Published
2014
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17. Treatment of Truncal Incompetence and Varicose Veins with a Single Administration of a New Polidocanol Endovenous Microfoam Preparation Improves Symptoms and Appearance

Author

Beyer, R., Comerota, A., Cummings, E., Daugherty, S., Deck, K., Ferris, B., Fleisher, A., Jones, A., Kabnick, L., Laredo, J., Murray, S., O'Byrne, M., Regan, J., Rosenblatt, M., Shortell, C., Soffer, A., Gasparis, A., Munavally, G., Sanchez, E., Vasquez, M., King, J.T., and Wright, D.

Published
2015
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23. Analysing the Performance of Different Population Structures for an Agent-Based Evolutionary Algorithm

Author

Laredo, J. L. J., Merelo, J. J., Fernandes, C. M., Mora, A. M., Arenas, M. G., Castillo, P. A., Garcia-Sanchez, P., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, and Coello, Carlos A. Coello, editor

Published
2011
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24. The Sandpile Mutation Operator for Genetic Algorithms

Author

Fernandes, C. M., Laredo, J. L. J., Mora, A. M., Rosa, A. C., Merelo, J. J., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, and Coello, Carlos A. Coello, editor

Published
2011
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25. Implementation Matters: Programming Best Practices for Evolutionary Algorithms

Author

Merelo, J. J., Romero, G., Arenas, M. G., Castillo, P. A., Mora, A. M., Laredo, J. L. J., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Cabestany, Joan, editor, Rojas, Ignacio, editor, and Joya, Gonzalo, editor

Published
2011
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26. A Study of Parallel Approaches in MOACOs for Solving the Bicriteria TSP

Author

Mora, A. M., Merelo, J. J., Castillo, P. A., Arenas, M. G., García-Sánchez, P., Laredo, J. L. J., Romero, G., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Cabestany, Joan, editor, Rojas, Ignacio, editor, and Joya, Gonzalo, editor

Published
2011
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27. An Ant-Based Rule for UMDA’s Update Strategy

Author

Fernandes, C. M., Lima, C. F., Laredo, J. L. J., Rosa, A. C., Merelo, J. J., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Kampis, George, editor, Karsai, István, editor, and Szathmáry, Eörs, editor

Published
2011
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35. P2P Evolutionary Algorithms: A Suitable Approach for Tackling Large Instances in Hard Optimization Problems

Author

Laredo, J. L. J., Eiben, A. E., van Steen, M., Castillo, P. A., Mora, A. M., Merelo, J. J., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Luque, Emilio, editor, Margalef, Tomàs, editor, and Benítez, Domingo, editor

Published
2008
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36. Architecture Performance Prediction Using Evolutionary Artificial Neural Networks

Author

Castillo, P. A., Mora, A. M., Merelo, J. J., Laredo, J. L. J., Moreto, M., Cazorla, F. J., Valero, M., McKee, S. A., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Giacobini, Mario, editor, Brabazon, Anthony, editor, Cagnoni, Stefano, editor, Di Caro, Gianni A., editor, Drechsler, Rolf, editor, Ekárt, Anikó, editor, Esparcia-Alcázar, Anna Isabel, editor, Farooq, Muddassar, editor, Fink, Andreas, editor, McCormack, Jon, editor, O’Neill, Michael, editor, Romero, Juan, editor, Rothlauf, Franz, editor, Squillero, Giovanni, editor, Uyar, A. Şima, editor, and Yang, Shengxiang, editor

Published
2008
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37. Clustering and Visualizing HIV Quasispecies Using Kohonen’s Self-Organizing Maps

Author

Mora, A. M., Merelo, J. J., Briones, C., Morán, F., Laredo, J. L. J., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Sandoval, Francisco, editor, Prieto, Alberto, editor, Cabestany, Joan, editor, and Graña, Manuel, editor

Published
2007
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38. Predicting Financial Distress: A Case Study Using Self-organizing Maps

Author

Mora, A. M., Laredo, J. L. J., Castillo, P. A., Merelo, J. J., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Sandoval, Francisco, editor, Prieto, Alberto, editor, Cabestany, Joan, editor, and Graña, Manuel, editor

Published
2007
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40. Design of a Cooperative Working Environment for Mobile Devices

Author

Mascaró, M., Estrany, B., Laredo, J., Sidaner, E., Luo, Y., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Luo, Yuhua, editor

Published
2005
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44. GEMMA: A Cooperative Control System to Collect Environmental Marine Waste

Author

Estrany, B., Mascaró, M., Bibiloni, A., Serra, G., Sideaner, E., Laredo, J., Capo, B., Alcover, B., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Luo, Yuhua, editor

Published
2004
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