Method and apparatus for performing entity linking

US11961010B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Rakebul Hasan · Munich, DE
• Ulugbek Kodirov · Munich, DE

Key dates

• Filing date: Jun 21, 2021
• Grant date: Apr 16, 2024
• Expiry date: Jan 1, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G06N3/09
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Provided is a method for performing entity linking between a surface entity mention in a surface text and entities of a knowledge graph, including supplying the surface text to a contextual text representation model, 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; supplying an identifier of a candidate knowledge graph entity 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.