ALEXANDRIA, Va., July 3 -- United States Patent no. 12,346,379, issued on July 1, was assigned to A9.com Inc. (Palo Alto, Calif.).

"Cold start machine learning based database query retrieval" was invented by Cuize Han (Union City, Calif.), Parth Gupta (Gandhinagar, India), Xu Xu (Mountain View, Calif.) and Pablo Castells (Madrid).

According to the abstract* released by the U.S. Patent & Trademark Office: "System and methods are provided that can address cold-start problems in database keyword searches. The search system generates machine-learned values for new item and queries based on historical signals for already existing item and queries. The values are used as input in a ranking model to rank search results for a user query. The init...