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arXiv 1709.09372math.STstat.TH
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关于带协变量的分类时间序列模型

On Categorical Time Series Models With Covariates

Konstantinos Fokianos, Lionel Truquet

摘要:

研究了一类可能包含潜在过程的自回归多项式Logistic时间序列模型的平稳性和遍历性问题。我们大大改善了现有的结果有关的平稳性和遍历性的条件,这样的模型。证明是基于为具有完全连接的链开发的理论。这种方法是基于一个有用的耦合技术,用于研究更一般的有限状态随机过程的遍历性。这样的过程通过假设过去值的无限阶模型来推广有限状态马尔可夫链。对于有限阶马尔可夫链,当过程的动力学中考虑一些强外生协变量时,我们也讨论了遍历性。

英文摘要:

We study the problem of stationarity and ergodicity for autoregressive multinomial logistic time series models which possibly include a latent process and are defined by a GARCH-type recursive equation. We improve considerably upon the existing results related to stationarity and ergodicity conditions of such models. Proofs are based on theory developed for chains with complete connections. This approach is based on a useful coupling technique which is utilized for studying ergodicity of more general finite-state stochastic processes. Such processes generalize finite-state Markov chains by assuming infinite order models of past values. For finite order Markov chains, we also discuss ergodicity properties when some strongly exogenous covariates are considered in the dynamics of the process.

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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