US Patent Issued to SAS Institute on May 27 for "Topological order determination in causal graphs" (American, Chinese Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,314,874, issued on May 27, was assigned to SAS Institute Inc. (Cary, N.C.).

"Topological order determination in causal graphs" was invented by Xilong Chen (Chapel Hill, N.C.), Sylvie Tchumtchoua Kabisa (Morrisville, N.C.), Dillon Frame (Chapel Hill, N.C.), Ming-Chun Chang (Cary, N.C.), Wanxi Gu (Beijing), Gunce Eryuruk Walton (Raleigh, N.C.), David Bruce Elsheimer (Clayton, N.C.) and Chuan Xu (Morrisville, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method include generating a topological order of a DAG by creating residual series vectors, calculating normality statistic and MSE values for the residual series vectors, comparing the ...