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arXiv · 1706.08111

Discriminative Cooperative Networks for Detecting Phase Transitions

Ye-Hua Liu·Evert P. L. van Nieuwenburg
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Abstract

The classification of states of matter and their corresponding phase transitions is a special kind of machine-learning task, where physical data allow for the analysis of new algorithms, which have not been considered in the general computer-science setting so far. Here we introduce an unsupervised machine-learning scheme for detecting phase transitions with a pair of discriminative cooperative networks (DCN). In this scheme, a guesser network and a learner network cooperate to detect phase transitions from fully unlabeled data. The new scheme is efficient enough for dealing with phase diagrams in two-dimensional parameter spaces, where we can utilize an active contour model -- the snake -- from computer vision to host the two networks. The snake, with a DCN "brain", moves and learns actively in the parameter space, and locates phase boundaries automatically.

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Ye-Hua Liu, Evert P. L. van Nieuwenburg. 2017-06-25. Discriminative Cooperative Networks for Detecting Phase Transitions. https://doi.org/10.1103/physrevlett.120.176401

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