ALEXANDRIA, Va., April 2 -- United States Patent no. 12,265,609, issued on April 1, was assigned to NIPPON TELEGRAPH AND TELEPHONE Corp. (Tokyo).

"Training device, detection system, training method, and training program" was invented by Masanori Yamada (Musashino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A learning apparatus includes: a first estimation unit-configured to learn normal communication data, estimate probability density of the normal communication data, and update a parameter of a model; a clustering unit configured to cluster the normal communication data according to the probability density estimated by the first estimation unit; a second estimation unit configured to perform learn...