نتایج جستجو برای: es models
تعداد نتایج: 981598 فیلتر نتایج به سال:
In this paper, we propose an efficient approximated rank one update for covariance matrix adaptation evolution strategy (CMA-ES). It makes use of two evolution paths as simple as that of CMA-ES, while avoiding the computational matrix decomposition. We analyze the algorithms’ properties and behaviors. We experimentally study the proposed algorithm’s performances. It generally outperforms or per...
Background: Transgenic mice are being considered as invaluable tool in biological sciences towards comprehension of the cause of the genetic diseases. Manipulated embryonic stem (ES) cells are used to produce loss-of-function mutant mice. Microinjection of manipulated ES cells into blastocoel cavity, and morula fusion are the two main techniques in producing transgenic mice. So...
Objective(s): Association of adolescent emotional stress (ES) with the incidence of cardiovascular disease (CVD) at older age was investigated. Materials and Methods: 21 female rats were divided into three groups of 7 each; ES, foot-shock, and control. Chronic ES was induced by exposing the rats to witness foot-shock of their neighboring...
هدف:اخیرا ماهیت پرتوانی سلولهای بنیادی اسپرماتوگونی (spermatogonial stem cells, sscs) در محیط کشت مورد توجه قرار گرفته است. هدف از تحقیق حاضر تولید سلولهای شبه بنیادی جنینی es-like cells) (embryonic stem like cells, از sscs و بررسی تغییرات مورفولوژیک و ژنتیکی در این سلولها نسبت به سلولهای بنیادی جنینی escs) (embryonic stem cells, است. مواد و روشها: سلولهای اسپرماتوگونی از بیضه موش نوزاد ب...
In this paper, we investigate the performance of CMA-ES on large scale non-separable optimisation problems. CMA-ES is a robust local optimiser that has shown great performance on small-scale nonseparable optimisation problems. Self-adaptation of a covariance matrix makes it rotational invariant which is a desirable property, especially for solving non-separable problems. The focus of this paper...
the primary goal of the current project was to examine the effect of three different treatments, namely, models with explicit instruction, models with implicit instruction, and models alone on differences between the three groups of subjects in the use of the elements of argument structures in terms of toulmins (2003) model (i.e., claim, data, counterargument claim, counterargument data, rebutt...
یادگیری ماشین یکی از شاخه های هوش مصنوعی می باشد که دامنهی تحقیقاتی وسیعی دارد. در مقالات مربوط به الگوریتم های تکاملی و روش های یادگیری ماشین، برخی از الگوریتم های تکاملی به عنوان نوعی از روشهای یادگیری ماشین استفاده شده است. با توجه به اینکه همواره الگوریتم های تکاملی به عنوان یادگیری ماشین به کار رفته است، ما در این پایان نامه به استفاده از روشهای یادگیری ماشین در بهبود الگوریتمهای تکاملی پر...
Evolutionary biologists have identified several factors that could explain the widespread phenomena of sex and recombination. One hypothesis is that host-parasite interactions favor sex and recombination because they favor the production of rare genotypes. A problem with many of the early models of this so-called Red Queen hypothesis is that several factors are acting together: directional sele...
in a fuzzy metric space (x;m; *), where * is a continuous t-norm,a locally fuzzy contraction mapping is de ned. it is proved that any locally fuzzy contraction mapping is a global fuzzy contractive. also, if f satis es the locally fuzzy contractivity condition then it satis es the global fuzzy contrac-tivity condition.
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