منابع مشابه
Evolutionary optimality in sex differences of longevity and athletic performances
Many sexual differences are known in human and animals. It is well known that females are superior in longevity, while males in athletic performances. Even though some sexual differences are attributed to the evolutionary tradeoff between survival and reproduction, the aforementioned sex differences are difficult to explain by this tradeoff. Here we show that the evolutionary tradeoff occurs am...
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هدف اصلی از این تحقیق به دست آوردن و مقایسه حق بیمه باورمندی در مدل های شمارشی گزارش نشده برای داده های طولی می باشد. در این تحقیق حق بیمه های پبش گویی بر اساس توابع ضرر مربع خطا و نمایی محاسبه شده و با هم مقایسه می شود. تمایل به گرفتن پاداش و جایزه یکی از دلایل مهم برای گزارش ندادن تصادفات می باشد و افراد برای استفاده از تخفیف اغلب از گزارش تصادفات با هزینه پائین خودداری می کنند، در این تحقیق ...
15 صفحه اولComparing the performances of GARCH-type models in capturing the stock market volatility in Malaysia
We conduct empirical analyses to model the volatility of stock market in Malaysia. The GARCH type models (symmetric and asymmetric GARCH) are used to model the volatility of stock market in Malaysia. Their performances are compared based on three statistical error measures tools, i.e. mean squared error, root means squared error and mean absolute percentage error for in sample and out sample an...
متن کاملComparing Self-esteem and Self-concept of Athletic and Non-Athletic Students and Finding a Relationship between these two Variables
This study aims to compare and determine a relationship between self-concept and self-esteem of female and male athletic and non-athletic students in Sari branch Islamic Azad University. For this reason, 200 students (100 athletic and 100 non-athletic) were selected randomly and tested by Eysenck’s self-esteem questionnaire and Rogers’s self-concept one. Research findings implied that there is ...
متن کاملComparing Topological Models for Concurrency
Several categories of models for concurrency involving topology have been put forward in each of which a notion of fundamental category is defined. One of them, the category of pospaces, is canonically included in almost all the others. Given a pospace −→ X and i( −→ X ), the image of −→ X by the inclusion i of PoTop in some of the other category in which the fundamental category is defined, it...
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ژورنال
عنوان ژورنال: Journal of the Royal Statistical Society: Series D (The Statistician)
سال: 1998
ISSN: 0039-0526,1467-9884
DOI: 10.1111/1467-9884.00151