Unsupervised learning using neuromorphic computing

    公开(公告)号:US10565500B2

    公开(公告)日:2020-02-18

    申请号:US15385031

    申请日:2016-12-20

    Inventor: Tsung-Han Lin

    Abstract: A spiking neural network (SNN) is implemented on a neuromorphic computers and includes a plurality of neurons, a first set of the plurality of synapses defining feed-forward connections from a first subset of the neurons to a second subset of the neurons, a second subset of the plurality of synapses to define recurrent connections between the second subset of neurons, and a third subset of the plurality of synapses to define feedback connections from the second subset of neurons to the first subset of neurons. A set of input vectors are provided to iteratively modify weight values of the plurality of synapses. Each iteration involves selectively enabling and disabling the third subset of synapses with a different one of the input vectors applied to the SNN. The weight values are iteratively adjusted to derive a solution to an equation comprising an unknown matrix variable and an unknown vector variable.

    Supporting learned branch predictors

    公开(公告)号:US10534613B2

    公开(公告)日:2020-01-14

    申请号:US15581791

    申请日:2017-04-28

    Abstract: Implementations of the disclosure provide a processing device comprising a branch predictor circuit to obtain a branch history for an application. The branch history comprising references to branching instructions associated with the application and an outcome of executing each branch. Using the branch history, a neutral network is trained to produce a weighted value for each branch of the branching instructions. Features of the branching instructions are identified based on the weighted values. Each feature identifying predictive information regarding the outcome of at least one branch of correlated branches having corresponding outcomes. A feature vector is determined based on the features. The feature vector comprises a plurality of data fields that identify an occurrence of a corresponding feature of the correlated branches with respect to the branch history. Using the feature vector, a data model is produced to determine a predicted outcome associated with the correlated branches.

    SUPPORTING LEARNED BRANCH PREDICTORS
    15.
    发明申请

    公开(公告)号:US20180314524A1

    公开(公告)日:2018-11-01

    申请号:US15581791

    申请日:2017-04-28

    Abstract: Implementations of the disclosure provide a processing device comprising a branch predictor circuit to obtain a branch history for an application. The branch history comprising references to branching instructions associated with the application and an outcome of executing each branch. Using the branch history, a neutral network is trained to produce a weighted value for each branch of the branching instructions. Features of the branching instructions are identified based on the weighted values. Each feature identifying predictive information regarding the outcome of at least one branch of correlated branches having corresponding outcomes. A feature vector is determined based on the features. The feature vector comprises a plurality of data fields that identify an occurrence of a corresponding feature of the correlated branches with respect to the branch history. Using the feature vector, a data model is produced to determine a predicted outcome associated with the correlated branches.

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