The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 2026
Filed:
Jan. 03, 2020
Oracle International Corporation, Redwood Shores, CA (US);
Vlad Haprian, Zurich, CH;
Oskar Van Rest, Mountain View, CA (US);
Sungpack Hong, Palo Alto, CA (US);
Hassan Chafi, San Mateo, CA (US);
Bence Czipo, Schlieren, CH;
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
Herein are techniques to accelerate finding a top few shortest paths between two vertices of a graph. In an embodiment, a computer calculates, for a graph that contains vertices that include landmark vertices, distances between each vertex and each landmark vertex. Based on the distances from each vertex to each landmark vertex, a top few shortest paths from a source vertex to a target vertex are calculated. In an embodiment, triangulation establishes a lower bound on a distance from a neighbor vertex of a current vertex to a target vertex of a query. In an embodiment, distance predictions based on the distance lower bounds are used to accelerate a K-A star search for the top few shortest paths.