Changing Model Behavior at Test-Time Using Reinforcement Learning

Augustus Odena; Dieterich Lawson; Christopher Olah

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arXiv · 1702.07780

Changing Model Behavior at Test-Time Using Reinforcement Learning

Augustus Odena·Dieterich Lawson·Christopher Olah

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Abstract

Machine learning models are often used at test-time subject to constraints and trade-offs not present at training-time. For example, a computer vision model operating on an embedded device may need to perform real-time inference, or a translation model operating on a cell phone may wish to bound its average compute time in order to be power-efficient. In this work we describe a mixture-of-experts model and show how to change its test-time resource-usage on a per-input basis using reinforcement learning. We test our method on a small MNIST-based example.

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Augustus Odena, Dieterich Lawson, Christopher Olah. 2017-02-24. Changing Model Behavior at Test-Time Using Reinforcement Learning. https://arxiv.org/abs/1702.07780

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