ALEXANDRIA, Va., July 21 -- United States Patent no. 12,688,321, issued on July 21, was assigned to NTT Inc. (Tokyo).
"Secure cluster calculation system, secure cluster calculation apparatus, secure cluster calculation method, and program" was invented by Ibuki Mishina (Tokyo), Dai Ikarashi (Tokyo), Koki Hamada (Tokyo) and Ryo Kikuchi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a technology for performing secure computation of a k-means method with high accuracy while keeping data secure. The technology includes: centroid table initialization means that sets a table including a set of a share of a cluster ID j and a share of a centroid of a cluster ID j as a j-th record as an initial va...