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Feature Programming for Multivariate Time Series Prediction
Alex Reneau · Jerry Yao-Chieh Hu · Ammar Gilani · Han Liu

Tue Jul 25 05:00 PM -- 06:30 PM (PDT) @ Exhibit Hall 1 #324

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.

Author Information

Alex Reneau (Northwestern University)
Jerry Yao-Chieh Hu (Northwestern University)
Ammar Gilani (Northwestern University)
Han Liu (Northwestern)

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