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Conditional BRUNO: A neural process for exchangeable labelled data
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DOI：10.1016/j.neucom.2019.11.108.png)
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Abstract
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We present a neural process which models exchangeable sequences of high-dimensional complex observations conditionally on a set of labels or tags. Our model combines the expressiveness of deep neural networks with the data-efficiency of Gaussian processes, resulting in a probabilistic model for which the posterior distribution is easy to evaluate and sample from, and the computational complexity scales linearly with the number of observations. The advantages of the proposed architecture are demonstrated on a challenging few-shot view reconstruction task which requires generalization from short sequences of viewpoints, and a contextual bandits problem. (C) 2020 Elsevier B.V. All rights reserved.
Keywords:
exchangeability
meta-learning
conditional density estimation
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