Results 21 to 30 of about 19,520,789 (348)
Trinal-wavelength-band WDM transmission over dispersion-shiftedfibre
Electronics Letters, 1999 Ultrawide-band wavelength-division multiplexing transmission over a dispersion shifted fiber utilizing the 1470-nm band, the 1550-nm band, and the 1590-nm band is demonstrated for the first time to our knowledge.
J. Kani +5 more
openaire +2 more sources
Alphanumeric Journal, 2020 Poisson regression analysis is widely used in many studies including count data. Poisson regression analysis is based on the assumption of equal mean and variance. However, this assumption is quite difficult in regression models.
Burcu Durmus, Ö. I. Güneri
semanticscholar +1 more source
NONLINEAR REGRESSION APPLICATIONS IN MODELING OVER-DISPERSION OF BIRD POPULATIONS
April, 2020 The aim of this study was to statistically evaluate bird populations in Akdoğan Lakes by means of Poisson and negative binomial regression models. The over-dispersion value in Poisson regression was much higher than 1.0 (33.827).
E. Celik, A. Durmuş
semanticscholar +1 more source
A Flexible Semi-Poisson Distribution with Applications to Insurance Claims and Biological Data
Mathematics, 2023 In this paper, a discrete one-parameter distribution called the semi-Poisson distribution is introduced, which is based on a set of non-negative integers. It is seen that this distribution captures over-dispersion and zero-inflation scenarios well. A few
Fatimah E. Almuhayfith +3 more
doaj +1 more source
The Poisson-generalised Lindley distribution and its applications [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2016 The Poisson distribution plays important role in count data analysis. However, the Poisson distribution cannot model some data with over-dispersion because of its property, equi-dispersion.
Weerinrada Wongrin, Winai Bodhisuwan
doaj +1 more source
Over-Dispersed Age-Period-Cohort Models [PDF]
Journal of the American Statistical Association, 2018 SUMMARYWe consider inference and forecasting for aggregate data organised in a two-way table with age and cohort as indices, but without measures of exposure. This is modelled using a Poisson likelihood with an age-period-cohort structure for the mean while allowing for over-dispersion.
Harnau, Jonas, Nielsen, Bent
openaire +2 more sources
Mathematics, 2023 Under-dispersed count data often appear in clinical trials, medical studies, demography, actuarial science, ecology, biology, industry and engineering.
Xun-Jian Li +4 more
doaj +1 more source
TTCM-OFDM over dispersive fading channels [PDF]
VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026), 2002 Orthogonal frequency division multiplexing (OFDM) is proposed as a convenient digital modulation scheme to transmit data encoded by means of turbo trellis coded modulation (TTCM). The resulting transmission system is described and the advantages of using OFDM to transmit TTCM encoded data are highlighted.
PIAZZO, Lorenzo, L. Hanzo
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Evaluating the effects of road geometry, environment, and traffic volume on rollover crashes
Transport, 2016 There are a number of factors that cause motor vehicles to rollover. However, the impacts of roadway characteristics on rollover crashes have rarely been addressed in the literature.
Mehdi Hosseinpour +4 more
doaj +1 more source
Asymptotic dispersion engineering for ultra-broadband meta-optics
Nature Communications, 2023 Dispersion decomposes compound light into its monochromatic components, which is detrimental to broadband imaging but advantageous for spectroscopic applications.
Yueqiang Hu +9 more
semanticscholar +1 more source