Node Embedding via Hash-Based Projection of Transformed Personalized PageRank

    公开(公告)号:US20230214425A1

    公开(公告)日:2023-07-06

    申请号:US17927494

    申请日:2020-09-24

    Applicant: Google LLC

    CPC classification number: G06F16/9024

    Abstract: Systems and methods for generating single-node representations in graphs comprised of linked nodes. The present technology enables generation of individual node embeddings on the fly in sublinear time (less than O(n), where n is the number of nodes in graph G) using only a PPR vector for the node, and random projection to reduce the dimensionality of the node’s PPR vector. In one example, the present technology includes a computer-implemented method comprising obtaining a graph having a plurality of nodes from a database, generating a personal pagerank vector for a given node of the plurality of nodes, and producing an embedding vector for the given node by randomly projecting the personal pagerank vector, wherein the embedding vector has lower dimensionality than the personal pagerank vector.

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