OVER-DISPERSION

作品数:3被引量:1H指数:1
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相关机构:上海交通大学更多>>
相关期刊:《Journal of Transportation Technologies》《Open Journal of Statistics》《Applied Mathematics》更多>>
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A Likelihood-Based Multiple Change Point Algorithm for Count Data with Allowance for Over-Dispersion
《Open Journal of Statistics》2024年第5期518-545,共28页Shalyne Nyambura Anthony Waititu Antony Wanjoya Herbert Imboga 
Count data is almost always over-dispersed where the variance exceeds the mean. Several count data models have been proposed by researchers but the problem of over-dispersion still remains unresolved, more so in the c...
关键词:OVER-DISPERSION Multiple Changepoint Binary Segmentation Likelihood Ratio Test 
Road Traffic Crash Data: An Overview on Sources, Problems, and Collection Methods被引量:1
《Journal of Transportation Technologies》2017年第2期206-219,共14页Azad Abdulhafedh 
Road traffic crash data are useful tools to support the development, implementation, and assessment of highway safety programs that tend to reduce road traffic crashes. Collecting road traffic crash data aims at gaini...
关键词:ROAD Safety Vehicle CRASH DATA OVER-DISPERSION Under-Dispersion UNDER-REPORTING FARS NASS HSIS 
A Comparison of Two Test Statistics for Poisson Overdispersion/Underdispersion
《Applied Mathematics》2012年第7期795-799,共5页Hongyue Wang Changyong Feng Xinming Tu Jeanne Kowalski 
Within the family of zero-inflated Poisson distributions, the data has Poisson distribution if any only if the mean equals the variance. In this paper we compare two closely related test statistics constructed based o...
关键词:POISSON DISTRIBUTION OVER-DISPERSION ASYMPTOTIC RELATIVE EFFICIENCY 
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