ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,737,767, issued on Sept. 15, was assigned to Visa International Service Association (San Francisco).

"Sampling framework for imbalanced transactions" was invented by Can Liu (Lucas, Texas), Yong Zhao (Austin, Texas), Shubham Agrawal (Round Rock, Texas) and Chiranjeet Chetia (Round Rock, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A server computer that implements an efficient sampling technique for imbalanced transactions. Transaction data comprising unlabeled transaction data and fraudulent transaction data is encoded to form (i) a first set of encoded data associated with fraudulent transactions and unlabeled transactions that are similar to...