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An Interpretable and Efficient Infinite-Order Vector Autoregressive Model for High-Dimensional Time Series
Feb. 27, 2024, 5:45 a.m. | Yao Zheng
stat.ML updates on arXiv.org arxiv.org
Abstract: As a special infinite-order vector autoregressive (VAR) model, the vector autoregressive moving average (VARMA) model can capture much richer temporal patterns than the widely used finite-order VAR model. However, its practicality has long been hindered by its non-identifiability, computational intractability, and difficulty of interpretation, especially for high-dimensional time series. This paper proposes a novel sparse infinite-order VAR model for high-dimensional time series, which avoids all above drawbacks while inheriting essential temporal patterns of the VARMA …
abstract arxiv autoregressive model computational moving patterns series stat.me stat.ml temporal time series type vector
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