نتایج جستجو برای: fitness function

تعداد نتایج: 1255937  

2018
Kathy Do Ruth Brown Sean Wharton Chris Ardern

Title: ASSOCIATION BETWEEN CARDIORESPIRATORY FITNESS AND METABOLIC RISK FACTORS IN A POPULATION WITH MILD TO SEVERE OBESITY Authors: Kathy Do ([email protected]) Ruth Brown ([email protected]) Sean Wharton ([email protected]) Chris Ardern ([email protected]) Jennifer Kuk ([email protected]) Version: 1 Date: 02 Jan 2018 Author’s response to reviews: Reviewer reports: C.J. Lavie (Re...

1997
C. R. Stephens H. Waelbroeck

We analyze the schema theorem and the building block hypothesis using a recently derived, exact schemata evolution equation. We derive a new schema theorem based on the concept of effective fitness showing that schemata of higher than average effective fitness receive an exponentially increasing number of trials over time. The building block hypothesis is a natural consequence in that the equat...

2003
Kerstin Holmstrom Henrik Jeldtoft Jensen

We compare the speed with which a sexual, respectively an asexual, population is able to respond to a biased selective pressure. Our model focuses on the Weismann hypothesis that the extra variation caused by crossing-over and recombination during sexual reproduction allows a sexual population to adapt faster. We find, however, that the extra variation amongst the progeny produced during sexual...

Journal: :Mathematical and Computer Modelling 2013
Bolin Shi Lei Zhao Ruicong Zhi Xingjun Xi

Using electronic nose, the odor fingerprints of Xihu-Longjing Tea from three producing areas and two tree specieswere collected. After analyzing the average fingerprint spectrum and its principal component scores, the genetic algorithms (GAs) were developed to select and optimize the effective sensors which can significantly contribute to modeling of production areas and tree species. The key t...

Journal: :Soft Comput. 2005
Yaochu Jin

Evolutionary algorithms (EAs) have received increasing interests both in the academy and industry. One main difficulty in applying EAs to real-world applications is that EAs usually need a large number of fitness evaluations before a satisfying result can be obtained. However, fitness evaluations are not always straightforward in many real-world applications. Either an explicit fitness function...

2004
Jörg Denzinger Alvin Schur

The fitness function of an evolutionary algorithm is one of the few possible spots where application knowledge can be made available to the algorithm. But the representation and use of knowledge in the fitness function is rather indirect and therefore not easy to achieve. In this paper, we present several case studies encoding application specific features into fitness functions for learning co...

Journal: :Expert Syst. Appl. 2014
David Augusto Silva Gabriela I. L. Alves Paulo S. G. de Mattos Neto Tiago Alessandro Espínola Ferreira

Over the last years, Evolutionary Algorithms (EAs) have been proposed aiming to find the best configuration of the Artificial Neural Networks (ANN) parameters. Among several parameters of an EA that can influence the quality of the found solution, the choice of the Fitness Function is the most important for its effectiveness and efficiency, given that different Fitness Functions have distinct f...

Journal: :Bio Systems 2000
E Bonabeau S Guérin D Snyers P Kuntz G Theraulaz

A simple model of multi-agent three-dimensional construction is presented. The properties of this model are investigated. Based on these properties, a fitness function is defined to characterize the structured patterns that can be generated by the model. The fitness function assigns a value to each pattern. The choice of the fitness function is validated by the fact that human observers tend to...

Background: The effect of Bunium persicum (Boiss.) B. Fedtsch. on the metabolic syndrome and physical fitness of active people have been less studied. Objective: The purpose of this study was to investigate the effect of B. persicum consumption on metabolic syndrome indices, muscle strength, and cardio-respiratory function in active middle-aged women. Method: The research method was quasi-e...

Journal: :iranian journal of public health 0
antonio paoli dept. of biomedical sciences, university of padua, padova, italy. antonino bianco sport and exercise sciences research unit, university of palermo, palermo, italy.

this review based upon studies searched from the major scientific libraries has the objective of clarifying what is fitness training in modern days, the implications that it has on health in both youth and elderly and finally discuss fitness training practical implications.the prisma statement was partially adopted and a number of 92 items were selected, according to the inclusion criteria. res...

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