US Patent Issued to NTT on Oct. 21 for "Secure PageRank computation system, method therefor, secure computation apparatus, and program" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,030, issued on Oct. 21, was assigned to NTT Inc. (Tokyo).

"Secure PageRank computation system, method therefor, secure computation apparatus, and program" was invented by Satoshi Takahashi (Musashino, Japan), Tetsushi Morita (Musashino, Japan) and Osamu Takino (Musashino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "To calculate PageRank with high accuracy using transaction data held by a plurality of data sources as input and keeping the transaction data of each data source secret. A data source apparatus (1) calculates a transaction rate for each combination of transaction entities (S12). The data source apparatus (1) encrypts the transact...