نتایج جستجو برای: kpss stationary test
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Injury risk from out-of-position (OOP) side airbag deployment has been assessed using stationary occupant test protocols. However, stationary conditions may not always represent real world OOP scenarios. Therefore, the objective of the present study was to evaluate the effects of OOP torso side airbag deployment, comparing a stationary test protocol with dynamic conditions. A combination of par...
Many word-spotting applications require an open keyword vocabulary, allowing the user to search for any term in an audio document database. In conjunction with this, an automatic method of determining the acoustic representation of an arbitrary keyword is needed. For a HMMbased system, where the keyword is represented by a concatenated string of phones, the keyword phone string (KPS), the phone...
The study investigated the effect of cashless policy on economic growth in Nigeria using quarterly time series data spanning through period 2012 to 2021 while research design adopted for was ex-post facto design. Diagnostic test such as serial correlation, heteroskedasticity and Cusum were conducted. Phillip-Peron Kwiatkowski-Phillips-Schmidt-Shin (KPSS) used carry out unit root variables Auto-...
تعیین الگوی مناسب یکی از مسائل مهم در مدل سازی و پیش بینی سری های زمانی، با توجه به مکانیسم سیستم مورد نظر است. اغلب، بدون بررسی خطی یا غیرخطی بودن سیستم از مدل های رایج خطی سری زمانی استفاده می شود. در این تحقیق فرآیند جریان رودخانه های نازلوچای، شهرچای و باراندوزچای واقع در استان آذربایجان غربی و غرب دریاچه ارومیه با آزمون غیرخطی bds در سه مقیاس زمانی (سالانه، ماهانه و روزانه) بررسی شده است. ...
Many time series are not second-order stationary and it is not appropriate to analyze them using methods designed for stationary series. This article introduces a new test for second-order stationarity that detects different kinds of departures from stationarity than those based on Fourier methods. The new test is also computationally fast, designed to work with Gaussian and a wide range of non...
Are unemployment rates stationary in Asia-Pacific countries? New findings from Fourier ADF test Fumitaka Furuoka To cite this article: Fumitaka Furuoka (2014) Are unemployment rates stationary in Asia-Pacific countries? New findings from Fourier ADF test, Economic Research-Ekonomska Istraživanja, 27:1, 34-45, DOI: 10.1080/1331677X.2014.947105 To link to this article: http://dx.doi.org/10.1080/1...
In this talk we present a procedure to test if a stationary process is Gaussian. The observation consists in a finite sample of a path of the process. The test is based on the fact (stablished in Cuesta-Albertos et al. (2007)) that, almost surely, a distribution is Gaussian iff a randomly chosen onedimensional projection is Gaussian, thus transforming the problema of testing the infinite-dimens...
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