from: deg511 1 year ago

OBUPM-2007 presentation by David E. Goldberg

Tags: little-models creative-modeling qual-quant gap eda

from: kknsastry 10 months ago

Effective and efficient multiscale modeling is essential to advance both the science and synthesis in a wide array of fields such as physics, chemistry, materials science, biology, biotechnology and pharmacology. This study investigates the efficacy and potential of using genetic algorithms for multiscale materials modeling and addresses some of the challenges involved in designing competent algorithms that solve hard problems quickly, reliably and accurately.

Tags: genetic-algorithms genetic-programming multiscale-modeling materials-science quantum-chemistry

from: pelikan 10 months ago

This work studies the utility of using substructural neighborhoods for local search in the Bayesian optimization algorithm (BOA). The probabilistic model of BOA, which automatically identifies important problem substructures, is used to define the structure of the neighborhoods used in local search. Additionally, a surrogate fitness model is considered to evaluate the improvement of the local search steps. The results show that performing substructural local search in BOA significatively reduces the number of generations necessary to converge to optimal solutions and thus provides substantial speedups.

Tags: local-search hybridization efficiency-enhancement boa bayesian-optimization-al...

from: pelikan 10 months ago

We discuss the computational complexity of random 2D Ising spin glasses, which represent an interesting class of constraint satisfaction problems for black box optimization. Two extremal cases are considered: (1) the +/- J spin glass, and (2) the Gaussian spin glass. We also study a smooth transition between these two extremal cases. The computational complexity of all studied spin glass systems is found to be dominated by rare events of extremely hard spin glass samples. We show that complexity of all studied spin glass systems is closely related to Frechet extremal value distribution. In a hybrid algorithm that combines the hierarchical Bayesian optimization algorithm (hBOA) with a deterministic bit-flip hill climber, the number of steps performed by both the global searcher (hBOA) and the local searcher follow Frechet distributions. Nonetheless, unlike in methods based purely on local search, the parameters of these distributions confirm good scalability of hBOA with local search. We further argue that standard performance measures for optimization algorithms---such as the average number of evaluations until convergence---can be misleading. Finally, our results indicate that for highly multimodal constraint satisfaction problems, such as Ising spin glasses, recombination-based search can provide qualitatively better results than mutation-based search.

Tags: spin-glass complexity estimation-of-distributi... eda bayesian-optimization-al...

from: Posa 9 months ago

Tags: real parameter optimization estimation-of-distributi... eda

from: antonya 8 months ago

This gives the gist of a new way of looking at software. This slide gives the overall vision. People are welcome to join me to make this a reality. Imagine a enterprise software which you can experience and then use. And also you pay only when you use. We believe this will be a win win situation for both customer and the vendor. The software proposes to achieve this by rethinking fundamentals. Please contact me at my email id to take this forward.

Tags: collaboration divide enterprise2.0 digital enterprise

from: boonzaai 4 months ago

Example of a distributed event driven network of applications

Tags: event driven architecture eda event

from: guest42e8f8 2 months ago

Tags: eda gamze eda gamze

from: proyectoheda 2 weeks ago

IV Congreso de Educación Matemática AGAPEMA. Betanzos (A Coruña) Proyecto EDA CNICE Ministerio de Educación, Política Social y Deporte.

Tags: tic formación experimentación cnice eda

from: proyectoheda 2 weeks ago

Las TIC y las competencias básicas, hacia un aprendizaje en colaboración en la enseñanza de las Matemáticas La semana del 7 al 11 de Julio se celebra en El Escorial el curso: Desarrollo de las Competencias básicas a través de las Matemáticas dentro de la Programación de los cursos de verano 2008 para el profesorado de ESO y Bachillerato.

Tags: tic matemáticas cnice descartes eda

from: proyectoheda 1 week ago

Ponencia de José Luis Alcón Camas, del IES Las Aguas de Sevilla, en el Congreso Nacional Internet en el Aula. (Proyecto HEDA)

Tags: tic heda internet aula congreso

from: proyectoheda 1 week ago

Ponencia presentada por Antonio Ángel Pérez, del IES Oretania de Linares (Jaén), en el Congreso Nacional Internet en el Aula. (Proyecto HEDA)

Tags: tic internet aula congreso heda