ALEXANDRIA, Va., May 12 -- United States Patent no. 12,626,146, issued on May 12, was assigned to INTERNATIONAL BUSINESS MACHINES Corp. (Armonk, N.Y.).

"Data pruning in tree-based fitted Q iteration" was invented by Takayuki Osogami (Yamato, Japan), Ryo Iwaki (Sumida-ku, Japan) and Kohei Miyaguchi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A computer-implemented method is provided for data reduction in a memory device for machine learning. The method includes storing, in the memory device, data that has been used for training in a tree-based fitted Q iteration session which learns an action value function with an ensemble of decision trees from the data. The method further includes determining, by...