Temporal directed cycle detection and pruning in transaction graphs

    公开(公告)号:US12093245B2

    公开(公告)日:2024-09-17

    申请号:US16852312

    申请日:2020-04-17

    摘要: A method for improving computing efficiency of a computing device for temporal directed cycle detection in a transaction graph includes preparing the transaction graph based on a plurality of transactions, the transaction graph including nodes indicating transaction origination points and transaction destination points, and edges indicating interactions between the nodes. Irrelevant nodes in the transaction graph are identified and pruned to provide a pruned, preprocessed transaction graph which can be partitioning into sections, where each section includes selected nodes that are linked to other linked nodes therein. Each of the sections having non-cyclic nodes can be trimmed prior to performing cycle detection on the resulting pruned transaction graph. Postprocessing pruning can be performed to further reduce the number of detected cycles that may be of interest to a particular application, such as in anti-money laundering.

    INFLUENCE FUNCTION IN MACHINE LEARNING FOR INTERPRETATION OF LENGTHY AND NOISY DOCUMENTS

    公开(公告)号:US20230056772A1

    公开(公告)日:2023-02-23

    申请号:US17408944

    申请日:2021-08-23

    IPC分类号: G06Q30/02 G06N3/08 G06F40/30

    摘要: A neural network to predict a future indicator of a given entity can be trained based on historical earnings call data and historical market data. An earnings call transcript can be received, from which to predict the future indicator. Preprocessing can be performed using a natural language processing (NLP) technique to select candidate sentences from the earnings call transcript. For a candidate sentence in the candidate sentences, and using the trained neural network, a sentence gradient can be determined, which is indicative of sensitivity of the trained neural network to the candidate sentence. Based on the determined sentence gradient associated with each of the candidate sentences, an explanation of the trained neural network's predicted future indicator can be provided.

    Faithful and Efficient Sample-Based Model Explanations

    公开(公告)号:US20220383185A1

    公开(公告)日:2022-12-01

    申请号:US17334889

    申请日:2021-05-31

    IPC分类号: G06N20/00 G06F40/40

    摘要: Hessian matrix-free sample-based techniques for model explanations that are faithful to the model are provided. In one aspect, a method for explaining a machine learning model {circumflex over (θ)} (e.g., for natural language processing) is provided. The method includes: training the machine learning model {circumflex over (θ)} with training data D; obtaining a decision of the machine learning model {circumflex over (θ)}; and explaining the decision of the machine learning model {circumflex over (θ)} using training examples from the training data D.

    TEMPORAL DIRECTED CYCLE DETECTION AND PRUNING IN TRANSACTION GRAPHS

    公开(公告)号:US20210326332A1

    公开(公告)日:2021-10-21

    申请号:US16852312

    申请日:2020-04-17

    摘要: A method for improving computing efficiency of a computing device for temporal directed cycle detection in a transaction graph includes preparing the transaction graph based on a plurality of transactions, the transaction graph including nodes indicating transaction origination points and transaction destination points, and edges indicating interactions between the nodes. Irrelevant nodes in the transaction graph are identified and pruned to provide a pruned, preprocessed transaction graph which can be partitioning into sections, where each section includes selected nodes that are linked to other linked nodes therein. Each of the sections having non-cyclic nodes can be trimmed prior to performing cycle detection on the resulting pruned transaction graph. Postprocessing pruning can be performed to further reduce the number of detected cycles that may be of interest to a particular application, such as in anti-money laundering.