نتایج جستجو برای: fold olc obtained using the ga optimization method this best ensemble combination

تعداد نتایج: 16868462  

Journal: :Wireless Engineering and Technology 2011
K. Aravind Narayanan P. Arun Shivaram M. Maheshkumar Santhoshkumar Krishnamurthi L. Sathiesh Kumar K. A. Narayanankutty

Interference threshold based on energy setting in cognitive radios is a non-convex optimization problem [1]. The convergence of optimization techniques like Genetic algorithm (GA) takes several iterations to fix this threshold. Here, an attempt made to use Differential evolution (DE) method for optimization after formulating the objective functions. The advantages with this method were three fo...

Clustering algorithms are highly dependent on different factors such as the number of clusters, the specific clustering algorithm, and the used distance measure. Inspired from ensemble classification, one approach to reduce the effect of these factors on the final clustering is ensemble clustering. Since weighting the base classifiers has been a successful idea in ensemble classification, in th...

Journal: :international journal of environmental research 2011
m. tabesh b. azadi a. roozbahani

a methodology is presented in this paper to find optimal location and dosage of chlorine injection in water distribution networks. the objective is to minimize the chlorine consumption while keeping the residual chlorine at each node within the standard range. unfortunately because of wrong water quality management in water distribution networks in many parts of the world, many problems such...

پایان نامه :دانشگاه امام رضا علیه اسلام - دانشکده ادبیات و زبانهای خارجی 1393

abstract this mixed method study examines whether there is any relationship among the variables of the study (job satisfaction, social capital and motivation). the researcher considered job satisfaction and social capital as independent variables; motivation is the dependent variable of the study. the researcher applied a questionnaire to assess each variable. to measure efl teachers’ job sati...

پایان نامه :0 1394

the aim of this thesis is an approach for assessing insurer’s solvency for iranian insurance companies. we use of economic data with both time series and cross-sectional variation, thus by using the panel data model will survey the insurer solvency.

Journal: :فیزیک زمین و فضا 0
حسین ایزدی گروه مهندسی اکتشاف نفت، دانشکده مهندسی معدن، پردیس دانشکده های فنی دانشگاه تهران غلامرضا نوروزی گروه مهندسی معدن، دانشکده مهندسی، دانشگاه بیرجند بیژن روشن روان گروه مهندسی اکتشاف معدن، دانشکده مهندسی معدن، دانشگاه صنعتی اصفهان سیما شکیبا گروه مهندسی اکتشاف معدن، دانشکده مهندسی معدن، پردیس دانشکده های فنی دانشگاه تهران

one of the most important goals in geomagnetic investigations is detecting local anomaly locations. regional anomaly can be simulating as a trend surface, and local anomalies will be detected by comparison of measured data and simulated trend surface. the problem is trying to find best coefficients of trend surface model using inverse methods based on modern optimization techniques, which are f...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1375

the thesis has been arranged into five chapters and mainly concerned with the baer-invariant of groups which is the generalization of the schur-multiplier with respect to the variety of groups. chapter one is devoted to collect some notation and background information which are needed in the next chapters. its also contains some important statements which will be generalized in this thesis. cha...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات 1390

this study is an outlook of iranians religious practices and customs in eras such as nasser one. it attempts to answer the main question, "religious practices and ceremonies in the society during naseri ruling" and other subsidiary questions with scientific and historical theories. iran was a traditional and religious community . people abided by their religious practices and duties within reli...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد یزد - دانشکده شیمی 1392

in this study, a simple, rapid and selective method was developed for the determination of dexamethasone. the proposed method is based on inhibitory effect of dexamethasone on the oxidation of orange-g by bromate in sulfuric acid media. the reaction was followed spectrophotometrically at 478.5 nm (?max). under optimum experimental conditions, (72.6 ?mol l-1 of orange-g, 0.76 mol l-1 of h2so4, 0...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1390

this study attempted to explore if teaching english collocations through two different modes of awareness-raising and input flooding has any possible differential effect on immediate retention as well as retention in a delayed assessment. it also compared the possible differential effect of teaching english collocations implicitly and explicitly on actively using the items in writing. m...

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