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arxiv 2306.06252 v1 pith:2IM3WZ6L submitted 2023-06-09 cs.LG stat.ML

Feature Programming for Multivariate Time Series Prediction

classification cs.LG stat.ML
keywords seriestimefeaturemultivariateframeworkengineeringfine-grainednoisy
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We introduce the concept of programmable feature engineering for time series modeling and propose a feature programming framework. This framework generates large amounts of predictive features for noisy multivariate time series while allowing users to incorporate their inductive bias with minimal effort. The key motivation of our framework is to view any multivariate time series as a cumulative sum of fine-grained trajectory increments, with each increment governed by a novel spin-gas dynamical Ising model. This fine-grained perspective motivates the development of a parsimonious set of operators that summarize multivariate time series in an abstract fashion, serving as the foundation for large-scale automated feature engineering. Numerically, we validate the efficacy of our method on several synthetic and real-world noisy time series datasets.

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