نتایج جستجو برای: kurtosis

تعداد نتایج: 3162  

Journal: :Journal of Physics A 2021

In this work, we study the statistical behavior of entanglement in quantum bipartite systems under Hilbert-Schmidt ensemble as assessed by standard measure - von Neumann entropy. Expressions first three exact cumulants entropy are known literature. The main contribution present work is formula corresponding fourth cumulant that controls tail distribution. As a key ingredient deriving result, ma...

Journal: :Journal of Physics A 2021

The thermodynamic uncertainty relation is a prominent result in stochastic thermodynamics that provides bound on the fluctuations of any flux, also known as current, terms average rate entropy production. Such are quantified by second moment probability distribution current. role higher order standardized moments such skewness and kurtosis remains largely unexplored. We analyze associated with ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده ریاضی و کامپیوتر 1387

در این پایان نامه، کلاسی از مدل های متلاطم تشریح شده که توسط مدل های رگرسیو با اندیس تولید می شوند. هر سری زمانی رفتار ویژه خاص خود را دارند و با استفاده از تکنیک های سری های زمانی استاندارد موجود نمی توانند مدل بندی شوند.این یک پدیده در بسیاری از سری های زمانی از جمله سریهای اقتصادی می باشد. از این جهت تابع خودهمبستگی و چگالی طیفی برای بسیاری از سری های مختلف رفتاری مشابه دارند و لذا برای سری ...

Journal: :Geophysical Research Letters 2009

Journal: :Journal of Nonparametric Statistics 2005

Journal: :The Journal of the Acoustical Society of America 2020

Journal: :Journal of Lightwave Technology 2022

Knowing only two high-order statistical moments of modulation symbols, often represented by the fourth moment called “kurtosis”, overestimation nonlinear interference (NLI) in a Gaussian noise (GN) model due to signaling assumption can be corrected through an enhanced GN (EGN) model. However, some modern optical communication systems where transmitted symbols are statistically correlated, such ...

Journal: :iranian journal of fuzzy systems 2009
eynollah pasha abolfazl saiedifar babak asady

the purpose of this study is to find the percentiles of fuzzy numbersand to demonstrate their applications, which include finding weightedmeans, dispersion indices, and the percentile intervals of fuzzy numbers. thecrisp approximations of fuzzy numbers introduced in this paper are new andinteresting for the comparison of fuzzy environments, such as a variety of economic,financial, and engineeri...

2006
Annibal Figueiredo Iram Gleria Raul Matsushita Sergio Da Silva

This paper revisits Levy sections theorem, which generalizes the central limit theorem to encompass autocorrelated variables. Levy sections theorem’s approach is extended to time series and applied to historical daily returns of selected dollar exchange rates. We explain the elevated kurtosis usually observed in such series by their volatilities. In particular, the high kurtosis of emerging mar...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید