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公开(公告)号：US10656988B1
公开(公告)日：2020-05-19
申请号：US15721181
申请日：2017-09-29
Applicant: Amazon Technologies, Inc.
Inventor： Conor Patrick McElhinney , Guillaume Boissier
Abstract: A computer implemented method includes determining a hierarchical graph of a network of entities. The method further includes determining event data from a plurality of events. The method also includes applying a plurality of statistical models on the event data corresponding to each of the plurality of the events and the hierarchical graph. Each of the statistical models generates a model output data for each of the plurality of events. The method further includes generating a model output data based on the model output data corresponding to each of the plurality of statistical models by using a first cost function. The method also includes generating a set of data based on the model output data by using a second cost function. The method further includes determining one or more entities of the network experiencing packet loss based on the set of data.
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公开(公告)号：US10091052B1
公开(公告)日：2018-10-02
申请号：US14749476
申请日：2015-06-24
Applicant: Amazon Technologies, Inc.
Inventor： John Corrigan , Conor Patrick McElhinney
Abstract: A network endpoint may issue network traces directed to another endpoint. Completed traces may provide information pertaining to possible paths between the endpoints. In response to a failed trace, a component along a possible path between the endpoints may be associated with a value that indicates an assessed contribution of the component to the network failure. The value may be used to initialize a parameter to a statistical calculation that iteratively refines the estimate to form a probability estimate regarding a likelihood that the component is contributing to a network fault.
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