Patent ID: 11961010
Assignee: SIEMENS AKTIENGESELLSCHAFT
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A computer-implemented method for performing entity linking between a surface entity mention in a surface text and entities of a knowledge graph, the method comprising:
supplying the surface text to a contextual text representation model, which calculates a contextual representation for each token within the surface text;
pooling contextual representations of the tokens of a surface entity mention in the surface text with contextual representations of the other tokens within the surface text to provide a contextual entity representation vector representing the surface entity mention with a surface text context;
supplying a candidate entity identifier of a candidate knowledge graph entity, selected for the surface entity mention using a method comprising a sub-linear query cost as a result of a candidate selection process forming one of a group of top-matched candidate entity node identifiers, for the surface entity mention to a knowledge graph embedding model, to provide an entity node embedding vector; and
combining the contextual entity representation vector with the entity node embedding vector to generate an input vector applied to a fully connected layer, which provides an unnormalized output transformed by a softmax function into a normalized output processed to classify whether the surface entity mention corresponds to the candidate knowledge graph entity.