Results 101 to 110 of about 18,958 (230)

What Belongs Where? Variable Selection for Zero-Inflated Count Models with an Application to the Demand for Health Care [PDF]

open access: yes
This paper develops stochastic search variable selection (SSVS) for zero-inflated count models which are commonly used in health economics. This allows for either model averaging or model selection in situations with many potential regressors.
Markus Jochmann
core  

Rate statistics for radio noise from lightning [PDF]

open access: yes
Radio frequency noise from lightning was measured at several frequencies in the HF - VHF range at the Kennedy Space Center, Florida. The data were examined to determine flashing rate statistics during periods of strong activity from nearby storms. It was
Levine, D. M.   +2 more
core   +1 more source

Statistical Analysis of a Telephone Call Center: A Queueing-Science Perspective [PDF]

open access: yes
A call center is a service network in which agents provide telephone-based services. Customers that seek these services are delayed in tele-queues. This paper summarizes an analysis of a unique record of call center operations.
Anat Sakov   +7 more
core  

Secure transmission enhancement in shotgun cellular systems using transmitter-side information over correlated shadowing channels

open access: yesAin Shams Engineering Journal
Shotgun cellular systems (SCSs) are stochastic models of wireless networks where base stations (BSs) are randomly deployed across spatial settings of dimension one, two, or three, under a Poisson point process (PPP).
Ali Mohammad Khodadoust   +2 more
doaj   +1 more source

Influencing Factor Analysis Based on Jointly Modeling for Freeway Rear-End and Sideswipe Crashes Considering Spatial and Site Correlations

open access: yesApplied Sciences
As the primary collision patterns on China’s freeways, in-depth exploration of the influencing factors of rear-end and sideswipe crashes has long been crucial for implementing targeted countermeasures.
Jianluo Wei   +4 more
doaj   +1 more source

PLNmodels: Poisson Lognormal Models [PDF]

open access: gold, 2019
Julien Chiquet   +3 more
openalex   +1 more source

Poisson-Lognormal Mixed Model Based Estimation in Clustered Longitudinal Count Data Analysis

open access: yesUniversity of Mauritius Research Journal, 2016
Poisson mixed models are useful for accommodating the overdispersion and correlations often observed among count data. These models are generated from the well-known independent Poisson model by adding normally distributed random effects to the linear predictor, and they are known as Poisson-log-normal mixed models.
openaire   +1 more source

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