نتایج جستجو برای: ranking and selection
تعداد نتایج: 16871407 فیلتر نتایج به سال:
This paper concerns a measure of selective pressure, called "loss of diversity," that denotes the proportion of unselected individuals during the selection phase. We probabilistically calculate the expected value and variance of loss of diversity in tournament selection, truncation selection, linear ranking selection, and exponential ranking selection. From numerical results, we observe that in...
The Intelligent Water Drop (IWD) algorithm is a recent stochastic swarm-based method that is useful for solving combinatorial and function optimization problems. In this paper, we investigate the effectiveness of the selection method in the solution construction phase of the IWD algorithm. Instead of the fitness proportionate selection method in the original IWD algorithm, two ranking-based sel...
The purpose of this study comparison of and ranking mate-selection preferences among female and male students, and three ethnic groups (Kord, Bakhtiyari, and Arabian language). 600 students (in 6 colleges) were selected using randomized stratified sampling, and completed the Mate-Selection Preferences Inventory. To assess of the validity of this measure principle components analysis (varimax ro...
drought stress is one of the most important factors limiting the productivity of crop plants around the world. genotype-by environment (g×e) interactions are common under drought and make breeding progress difficult. for this reason twenty genotypes of bread wheat were evaluated in a randomized complete block design with 3 replications at 2 locations (stress and non-stress environments) in two ...
چکیده در این پژوهش، رابطه بین سبک های مقابله ای با جرأت ورزی و پرخاشگری در دانشجویان دانشگاه بین المللی امام خمینی (ره) بررسی شد. نمونه مورد بررسی، شامل 200 نفر (121 زن و 79 مرد) از دانشجویان دانشگاه مورد نظر در دو جنس است که از طریق روش نمونه گیری خوشه ای تصادفی، انتخاب و به پرسشنامه های الگوهای پاسخ دهی بین فردی تونند و پرسشنامه سبک های مقابله ای اندلر و پارکر پاسخ دادند. همچنین از روش های ...
the present paper deals with criminal issues. for example, legal injunction on the necessity of returning a deposit has a legal nature and legal injunction on the punishment of those who breach the trust has a criminal nature. existing social issues are the basis of classification of some instances into the issue, some of which are based on variation and others on quality. therefore, the motiva...
In this paper a new scheme of feature ranking and hence feature selection using a Multilayer Perceptron (MLP) Network has been proposed. The novelty of the proposed MLP-based scheme and its difference from another MLP-based feature ranking scheme have been analyzed. In addition we have modified an existing feature ranking/selection scheme based on fuzzy entropy. Empirical investigations show th...
An automatic term extraction system consists of a term candidate extraction subsystem, a ranking subsystem and a selection subsystem. In this paper, we experimentally evaluate two ranking methods and two selection methods. As for ranking, a dichotomy of unithood and termhood is a key notion. We evaluate these two notions experimentally by comparing Imp based ranking method that is based directl...
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