Accurate and interpretable classification with hard attention

    公开(公告)号:US11475277B2

    公开(公告)日:2022-10-18

    申请号:US15931106

    申请日:2020-05-13

    Applicant: Google LLC

    Abstract: Generally, the present disclosure is directed to novel machine-learned classification models that operate with hard attention to make discrete attention actions. The present disclosure also provides a self-supervised pre-training procedure that initializes the model to a state with more frequent rewards. Given only the ground truth classification labels for a set of training inputs (e.g., images), the proposed models are able to learn a policy over discrete attention locations that identifies certain portions of the input (e.g., patches of the images) that are relevant to the classification. In such fashion, the models are able to provide high accuracy classifications while also providing an explicit and interpretable basis for the decision.

    Neural Network Layers with a Controlled Degree of Spatial Invariance

    公开(公告)号:US20210248472A1

    公开(公告)日:2021-08-12

    申请号:US17121161

    申请日:2020-12-14

    Applicant: Google LLC

    Abstract: The present disclosure provides a neural network including one or more layers with relaxed spatial invariance. Each of the one or more layers can be configured to receive a respective layer input. Each of the one or more layers can be configured to convolve a plurality of different kernels against the respective layer input to generate a plurality of intermediate outputs, each of the plurality of intermediate outputs having a plurality of portions. Each of the one or more layers can be configured to apply, for each of the plurality of intermediate outputs, a respective plurality of weights respectively associated with the plurality of portions to generate a respective weighted output. Each of the one or more layers can be configured to generate a respective layer output based on the weighted outputs.

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