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arXiv 2202.00333stat.ME
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GenMarkov:R中广义多元马尔可夫链的建模

GenMarkov: Modeling Generalized Multivariate Markov Chains in R

Carolina Vasconcelos, Bruno Damásio

摘要:

本文提出了一种新的推广的多元马尔可夫链(MMC)模型。马尔可夫链的未来值通常只依赖于自回归方式的链的过去值。在这项工作中提出的推广还考虑了外生变量,可以是确定性的或随机的。此外,在我们的模型中,通过考虑一个非齐次的马尔可夫链,考虑了MMC的过去值的影响和预先确定的或外生的协变量的影响。蒙特卡罗模拟的研究结果表明,我们的模型始终检测到一个非齐次马尔可夫链。此外,通过估计外生变量空间状态下的概率转移矩阵,验证了新模型的实用性。这项工作的一个额外的和实际的贡献是开发一种新的R包与此泛化。

英文摘要:

This article proposes a new generalization of the Multivariate Markov Chains (MMC) model. The future values of a Markov chain commonly depend on only the past values of the chain in an autoregressive fashion. The generalization proposed in this work also considers exogenous variables that can be deterministic or stochastic. Furthermore, the effects of the MMC's past values and the effects of pre--determined or exogenous covariates are considered in our model by considering a non--homogeneous Markov chain. The Monte Carlo simulation study findings showed that our model consistently detected a non--homogeneous Markov chain. Besides, an empirical illustration demonstrated the relevance of this new model by estimating probability transition matrices over the space state of the exogenous variable. An additional and practical contribution of this work is the development of a novel R package with this generalization.

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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