نتایج جستجو برای: an auto regressive model by toda

تعداد نتایج: 10279908  

2013
Abhirup Das Barman G. Q. Maguire S. A. Jafar D. D. Ariananda M. K. Lakshmanan Ying-Chang Liang

A challenging problem in Cognitive radio is that the secondary users in cognitive radios must be able to detect primary users under low signal-to-noise ratio (SNR) and dispersive channel. Spectrum sensing based on auto-correlation of the received signal samples being more prone to correlate under dispersive condition, has been investigated. Simplified theoretical expressions for probability of ...

2012

The feature of HIV genome is in a wide range because of it is highly heterogeneous. Hence, the infection ability of the virus changes related with different chemokine receptors. From this point, R5 and X4 HIV viruses use CCR5 and CXCR5 coreceptors respectively while R5X4 viruses can utilize both coreceptors. Recently, in Bioinformatics, R5X4 viruses have been studied to classify by using the co...

Journal: :Journal of the Royal Statistical Society: Series A (Statistics in Society) 2019

2010
Sergio Brasini Marzia Freo Elisa Iezzi Giorgio Tassinari

The purpose of the paper is to provide a method to quantify the impact of promotions for retailers. Using scanner data aggregated by category of an Italian hypermarkets chain, the authors measure the promotional direct and cross-effectiveness on regular sales, in shortand long-term, by means of a structural vector auto-regressive model. The empirical results suggest that promotions in the heavy...

2006
R. Moddemeijer

The selection of an optimal set of parameters from a larger one is a well known identification problem in classification or clustering algorithms. The Akaike criterion has been developed to estimate the (Markov) order in auto regressive models. This criterion, which by itself extends the maximum likelihood method to test composite hypotheses, is replaced by the Modified Information Criterion (M...

Journal: :Neural computation 2005
Christopher K. I. Williams

In many areas of data modeling, observations at different locations (e.g.,time frames or pixel locations) are augmented by differences of nea r by observations (e.g., delta features in speech recognition, Gabor jets in image analysis). These augmented observations are then often modeled as being independent. How can this make sense?We provide two interpretations,showing (1) that the likelihood ...

Journal: :International journal of energy applications and technologies 2021

Some concern has been expressed over the continuous low production from Marginal oil field. This problem ascribed to multitude of hindrances occasioned by nature earth formation in zone. Attempts ascertain character or complexion such problems have often eluded researchers and operators study adopts use auto-regressive time series model find out root cause mechanism that generate high output ma...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید