arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.12411stat.ME
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计数型数据的转移模型:固定分布模型的灵活替代

Transition Models for Count Data: a Flexible Alternative to Fixed Distribution Models

Moritz Berger, Gerhard Tutz

摘要:

一个灵活的半参数类模型的介绍,提供了一种替代经典的回归模型计数数据的泊松和负二项模型,以及更一般的模型占多余的零,也是基于固定的分布假设。该模型允许数据本身确定响应变量的分布,但在其基本形式中,使用参数项指定解释变量的影响。此外,被认为是一个扩展版本,其中协变量的影响指定非参数。利用几个实际数据应用,提出的模型和传统的模型进行了比较。

英文摘要:

A flexible semiparametric class of models is introduced that offers an alternative to classical regression models for count data as the Poisson and negative binomial model, as well as to more general models accounting for excess zeros that are also based on fixed distributional assumptions. The model allows that the data itself determine the distribution of the response variable, but, in its basic form, uses a parametric term that specifies the effect of explanatory variables. In addition, an extended version is considered, in which the effects of covariates are specified nonparametrically. The proposed model and traditional models are compared by utilizing several real data applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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