ALEXANDRIA, Va., July 21 -- United States Patent no. 12,688,442, issued on July 21, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Online learning of model parameters" was invented by Takayuki Osogami (Kanagawa-ken, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Online learning of model parameters is performed by obtaining a first target value in a target sequence and a feature vector corresponding to the first target value. The feature vector includes a plurality of elements. The feature vector can be modified to obtain a modified feature vector by reducing an absolute value of at least one element of the feature vector. An inverse Hessian matrix can be generated recursively fr...