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Completed 2023 – 2024 Big Data Analytics & Solutions Lab, Hitachi America Ltd.

Replicating Expert Behavior via Imitation Learning

An imitation-learning system that learns how expert operators make decisions in Oil & Gas SCADA operations from multi-sensor data, so those decisions can be made autonomously.

Collaborators: Malarvizhi Sankaranarayanasamy, Neda Zarayeneh, Ravigopal Vennelakanti

Problem

Oil & Gas production assets are run through SCADA systems, where experienced operators read many sensor streams and decide how to act. That know-how is hard to write down as rules. This project set out to learn those decisions directly from recorded expert behavior, so that they can be made autonomously.

Approach

The system is built on Generative Adversarial Imitation Learning (GAIL). Instead of hand-designing a reward, two networks are trained against each other on multi-sensor SCADA data: a discriminator learns to tell the experts' recorded decisions apart from the policy’s, and the policy learns to make decisions the discriminator cannot tell apart from the experts’. The trained policy then reproduces expert behavior.

Outcome

  • Validated in a pilot deployment. The system reached over 85% accuracy on its first run.
  • Scaled to production. After the pilot, it was rolled out across multiple production assets.
  • A patent and a paper. A filed patent application on industrial automation that learns from, and works with, human operators, and a paper under review.