ALEXANDRIA, Va., March 31 -- United States Patent no. 12,591,763, issued on March 31, was assigned to NEC Corp. (Tokyo).
"Processing a query using an entity feature vector" was invented by Kosuke Akimoto (Tokyo), Takuya Hiraoka (Tokyo) and Kunihiko Sadamasa (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A processing device includes: an entity pre-processing means for receiving a set of atoms, the atom indicating a combination of a predicate and an associative array of entities that are arguments of the predicate, and calculating for each of the entities an entity feature vector for each of the entities, the vector reflecting a correspondence between keys and the entity in the associative array; and a ...