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Bayesian optimization and attribute adjustment
Proceedings of the 34th Conference on Uncertainty in Artificial Intelligence, PMLR R16:1041-1051, 2018.
Abstract
Automatic design via Bayesian optimization holds great promise given the constant increase of available data across domains. However, it faces difficulties from high-dimensional, poten- tially discrete, search spaces. We propose to probabilistically embed inputs into a lower di- mensional, continuous latent space, where we perform gradient-based optimization guided by a Gaussian process. Building on variational au- toncoders, we use both labeled and unlabeled data to guide the encoding and increase its ac- curacy. In addition, we propose an adversar- ial extension to render the latent representa- tion invariant with respect to specific design attributes, which allows us to transfer these at- tributes across structures. We apply the frame- work both to a functional-protein dataset and to perform optimization of drag coefficients di- rectly over high-dimensional shapes without in- corporating domain knowledge or handcrafted features.