Learning the Structure of a Nonstationary Vector Autoregression.

Clicks: 282
ID: 69778
2019
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Abstract
We adapt graphical causal structure learning methods to apply to nonstationary time series data, specifically to processes that exhibit stochastic trends. We modify the likelihood component of the BIC score used by score-based search algorithms, such that it remains a consistent selection criterion for integrated or cointegrated processes. We use this modified score in conjunction with the SVAR-GFCI algorithm [15], which allows us to recover qualitative structural information about the underlying data-generating process even in the presence of latent (unmeasured) factors. We demonstrate our approach on both simulated and real macroeconomic data.
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malinsky2019learningproceedings Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Malinsky, Daniel;Spirtes, Peter;
Journal proceedings of machine learning research
Year 2019
DOI
DOI not found
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Keywords
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