Search Results - subject:"Poisson Distribution"

Zero truncated Poisson integer-valued AR(1) model

Bakouch, Hassan; Ristić, Miroslav - In: Metrika 72 (2010) 2, pp. 265-280

Persistent link: https://www.econbiz.de/10008673987

Random effects regression models for count data with excess zeros in caries research

Todem, D.; Zhang, Y.; Ismail, A.; Sohn, W. - In: Journal of Applied Statistics 37 (2010) 10, pp. 1661-1679

We extend the family of Poisson and negative binomial models to derive the joint distribution of clustered count outcomes with extra zeros. Two random effects models are formulated. The first model assumes a shared random effects term between the conditional probability of perfect zeros and the...

Persistent link: https://www.econbiz.de/10008674945

DISTRIBUTION OF MULTI-WORDS IN CHINESE AND ENGLISH DOCUMENTS

ZHANG, WEN; YOSHIDA, TAKETOSHI; TANG, XIJIN - In: International Journal of Information Technology & … 08 (2009) 02, pp. 249-265

predict probabilities of frequency of multi-words' occurrence and the Poisson distribution is comparable to zero …-words is carried out to explore a theoretical basis for probabilistic term-weighting scheme. Specifically, the Poisson … distribution, zero-inflated binomial distribution, and G-distribution are comparatively studied on a task of predicting …

Persistent link: https://www.econbiz.de/10004983221

Useful moment and CDF formulations for the COM–Poisson distribution

Nadarajah, Saralees - In: Statistical Papers 50 (2009) 3, pp. 617-622

Persistent link: https://www.econbiz.de/10004966074

Upper Estimates of the Mean Extinction Time of a Population with a Constant Carrying Capacity

KLOKOV, SERGEY - In: Mathematical Population Studies 16 (2009) 3, pp. 221-230

Poisson distribution depending on the carrying capacity K and the total population size. Upper estimates of the mean …

Persistent link: https://www.econbiz.de/10009205544

Heterogeneous Demand Responses to Discrete Price Changes

Hartley, Roger; Lanot, Gauthier - Centre for Economic Research, School of Economics and … - 2000

This paper discusses the probability of exploiting price variations that may occur during the survey period of any household expenditure survey in order to identify heterogeneous demand responses to discrete price changes. This is possible since expenditure survey contain usually a large number...

Persistent link: https://www.econbiz.de/10005181760

New inference procedures for generalized Poisson distributions

Meintanis, Simos - In: Journal of Applied Statistics 35 (2008) 7, pp. 751-762

A common feature for compound Poisson and Katz distributions is that both families may be viewed as generalizations of the Poisson law. In this paper, we present a unified approach in testing the fit to any distribution belonging to either of these families. The test involves the probability...

Persistent link: https://www.econbiz.de/10005458236

Properties and performance of the c-chart for attributes data

Chakraborti, S.; Human, S. W. - In: Journal of Applied Statistics 35 (2008) 1, pp. 89-100

The effects of parameter estimation are examined for the well-known c-chart for attributes data. The exact run length distribution is obtained for Phase II applications, when the true average number of non-conformities, c, is unknown, by conditioning on the observed number of non-conformities in...

Persistent link: https://www.econbiz.de/10005458246

A procedure for selection of a gamma-Poisson single sampling plan by attributes

Vijayaraghavan, R.; Rajagopal, K.; Loganathan, A. - In: Journal of Applied Statistics 35 (2008) 2, pp. 149-160

Design and evaluation of sampling plans by attributes and by variables are important aspects in the area of acceptance sampling research. Various procedures for the selection of conventional single sampling by attributes have been developed and are available in the literature. This paper...

Persistent link: https://www.econbiz.de/10005458407

Some comments on “The estimation of lost multi-copy documents: A new type of informetrics theory” by Egghe and Proot

Burrell, Quentin L. - In: Journal of Informetrics 2 (2008) 1, pp. 101-105

Egghe and Proot [Egghe, L., & Proot, G. (2007). The estimation of the number of lost multi-copy documents: A new type of informetrics theory. Journal of Informetrics] introduce a simple probabilistic model to estimate the number of lost multi-copy documents based on the numbers of retrieved...

Persistent link: https://www.econbiz.de/10011039491