US Patent Issued to Microsoft Technology Licensing on Aug. 25 for "Information retrieval system using a hierarchical corpus encoder" (California, Maryland, Washington Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,717,829, issued on Aug. 25, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).

"Information retrieval system using a hierarchical corpus encoder" was invented by Tongfei Chen (Seattle), Adam David Pauls (San Francisco), Ankita Sharma (Sunnyvale, Calif.) and Benjamin David Van Durme (Baltimore).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dense encoder is adapted as a hierarchical corpus encoder in an information retrieval system to use negative samples from sibling nodes in a hierarchical tree of vector embeddings for documents in a corpus. Both the encoder and hierarchical tree are co-trained using a loss function that takes the do...