نتایج جستجو برای: data modeling

تعداد نتایج: 2688833  

Journal: :American Journal of Epidemiology 2006

Journal: :Transportation 2022

Abstract This paper presents an approach to estimate mode-choice models from spatially anonymized revealed preference travel survey data. We propose algorithm find a feasible sequence of activity locations for each individual that minimizes the maximum error trip’s Euclidean distance within chain. The synthetic are then used create unchosen alternatives choice set individual. is followed by mod...

Journal: :Mathematics 2021

The Dirichlet distribution is a well-known candidate in modeling compositional data sets. However, the presence of outliers, fails to model such sets, making other extensions necessary. In this paper, Kummer–Dirichlet and gamma are coupled, using beta-generating technique. This development results proposal distribution, which presents greater flexibility Some general properties, as probability ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زبانهای خارجی 1393

the purpose of this study was to examine the english language needs of medical students at tehran university of medical sciences . analysis of the needs took place for three groups: 320 undergraduate students, 30 postgraduate students and 20 university instructors. a triangulation approach to collect data was used in which a combination of the quantitative (using the questionnaires) and qualita...

Journal: :Journal of Intelligent Information Systems 2011

Journal: :Journal of the American Statistical Association 2009

Journal: :MEJ. Mansoura Engineering Journal 2021

Journal: :Sociological Methods & Research 2006

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