Results 11 to 20 of about 594 (117)
Zero-inflated models and estimation in zero-inflated Poisson distribution
Communications in Statistics - Simulation and Computation, 2017 In this paper, we briefly overview different zero-inflated probability distributions. We compare the performance of the estimates of Poisson, Generalized Poisson, ZIP, ZIGP and ZINB models through Mean square error (MSE), bias and Standard error (SE) when the samples are generated from ZIP distribution.
Yogita S. Wagh, Kirtee K. Kamalja
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E-Jurnal Matematika, 2018 Tetanus Neonatorum (TN) is an infectious disease that could be prevented by immunization. East Java Province is the highest numbers of TN case in Indonesia. TN data in East Java contain overdispersion and big proportion of zero-inflation (71,05%).
LUTHFATUL AMALIANA +2 more
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An integer GARCH model for a Poisson process with time-varying zero-inflation.
PLoS ONE, 2023 A serially dependent Poisson process with time-varying zero-inflation is proposed. Such formulations have the potential to model count data time series arising from phenomena such as infectious diseases that ebb and flow over time. The model assumes that
Isuru Panduka Ratnayake +1 more
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Modelling Unobserved Heterogeneity in Claim Counts Using Finite Mixture Models
Risks, 2020 When modelling insurance claim count data, the actuary often observes overdispersion and an excess of zeros that may be caused by unobserved heterogeneity.
Lluís Bermúdez +2 more
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Deep Learning for seasonality modelling in Inflation-Indexed Swap pricing [PDF]
Risk Management Magazine, 2021 An Inflation-Indexed Swap (IIS) is a derivative in which, at every payment date, the counterparties swap an inflation rate with a fixed rate. For the calculation of the Inflation Leg cash flows it is necessary to build a mathematical model suitable for ...
Pier Giuseppe Giribone, Duccio Martelli
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Generalized Sichel Distribution and Associated Inference [PDF]
Journal of Statistical Theory and Applications (JSTA), 2017 In this paper, we propose a generalized form of Sichel distribution which is obtained by mixing the Poisson distribution with the extended generalized inverse Gaussian distribution.
Yeh Ching Low +2 more
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Observational Status of Zero-Point Length Cosmic Inflation [PDF]
Iranian Journal of Astronomy and AstrophysicsWe examine observational status of cosmological inflation with a zero-point length. By considering the zero-point length correction to the geometric part of the field equations, specially the Hubble parameter, we derive modified background equations ...
Elahe Pourmohseni +2 more
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Zero-Inflated Beta Distribution Regression Modeling
Journal of Agricultural, Biological and Environmental Statistics, 2022 A frequent challenge encountered with ecological data is how to interpret, analyze, or model data having a high proportion of zeros. Much attention has been given to zero-inflated count data, whereas models for non-negative continuous data with an abundance of 0s are lacking.
Becky Tang +3 more
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In defense of zero inflation [PDF]
Working paper (Federal Reserve Bank of Cleveland), 1990 An argument supporting zero inflation as the sole objective of monetary policy, with particular emphasis on the Bank of Canada's commitment to an explicit, low inflation target.
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Scientia Marina, 2022 The estimation of reliable indices of abundance for sedentary stocks requires the incorporation of the underlying spatial population structure, including issues arising from the sampling design and zero inflation.
Ricardo A. Morris +2 more
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