PatentBrief

Training neural networks

A method of training an artificial neural network uses a computer configured as a plurality of interconnected neural units arranged in a layered network including an input layer having a network input, and an output laye…

Granted 1990activeExpired 2008Owned by GTE Laboratories IncInvented by Laurence F. Wood

Original patent title: “Training neural networks

What this patent covers

The actual claim

A method of training an artificial neural network uses a computer configured as a plurality of interconnected neural units arranged in a layered network including an input layer having a network input, and an output layer having a network output. A neural unit has a first subunit and a second subunit. The first subunit having one or more first inputs, and a corresponding first set of variables for operating upon the first inputs to provide a first output. The first set of variables can change in response to feedback representing differences between desired network outputs for selected network inputs and actual network outputs. The second subunit has a plurality of second inputs, and a corresponding second set of variables for operating upon said second inputs to provide a second output. The second set of variables can change in response to differences between desired network outputs for selected network inputs and actual network outputs. The computer provides an activating variable representing the difference between current second output and previous second outputs. A series of examples of data is provided as network input to said network. The activating variable is added to the feedback to accelerate the change of said first set of variables. The actual resulting network outputs are compared to desired outputs corresponding to the examples. The examples are iterated until the network outputs converge to a solution.

What this patent does NOT cover

The boundaries

    These exclusions are unique to PatentBrief — derived from the actual claim language, not patent-office boilerplate.

    Training neural networks(Primary claim)

    Schematic visualization of the patent's claim structure. Hand-drawn diagrams in progress for each landmark patent.

    Patent Abstract

    Patent abstract

    A method of training an artificial neural network uses a computer configured as a plurality of interconnected neural units arranged in a layered network including an input layer having a network input, and an output layer having a network output. A neural unit has a first subunit and a second subunit. The first subunit having one or more first inputs, and a corresponding first set of variables for operating upon the first inputs to provide a first output. The first set of variables can change in response to feedback representing differences between desired network outputs for selected network inputs and actual network outputs. The second subunit has a plurality of second inputs, and a corresponding second set of variables for operating upon said second inputs to provide a second output. The second set of variables can change in response to differences between desired network outputs for selected network inputs and actual network outputs. The computer provides an activating variable representing the difference between current second output and previous second outputs. A series of examples of data is provided as network input to said network. The activating variable is added to the feedback to accelerate the change of said first set of variables. The actual resulting network outputs are compared to desired outputs corresponding to the examples. The examples are iterated until the network outputs converge to a solution.

    Patent Journey

    From filing to expiry

    Patent Filed

    1988

    Patent Granted

    1990 · 1yr after filing

    Patent Expired

    2008

    PatentBrief Score

    Impact Score

    31/ 100

    Early stage

    Citation count

    29/40

    Moderately cited

    Claim breadth

    2/20

    Narrow claims

    Recency

    0/20

    Older than 20 years

    Assignee scale

    0/20

    Independent or smaller assignee

    PatentBrief Impact Score — based on citation count, claim breadth, recency, and assignee scale. Not a legal assessment.

    The original legal language

    Original claims

    3 claims as filed with the patent office.

    Citations

    Patent lineage

    Cites earlier patents

    6

    earlier patents this invention cites as foundations

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    Cited by later patents

    29

    later patents that build on this invention

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