Invention Grant
- Patent Title: Enhanced reach-based graph processing using shortcuts
- Patent Title (中): 使用快捷键增强基于范围的图表处理
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Application No.: US11593857Application Date: 2006-11-06
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Publication No.: US07774734B2Publication Date: 2010-08-10
- Inventor: Andrew V. Goldberg , Renato F. Werneck , Haim Kaplan
- Applicant: Andrew V. Goldberg , Renato F. Werneck , Haim Kaplan
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agency: Woodcock Washburn LLP
- Main IPC: G06F17/50
- IPC: G06F17/50

Abstract:
An algorithm referred to as REAL for the point-to-point shortest path problem combines A* search with landmark-based lower bounds and reach-based pruning. A symbiosis of these techniques is described, which gives a range of time and space tradeoffs, including those that improve both of these complexity measures. Locality is improved and exact reach computation is described.
Public/Granted literature
- US20080122848A1 Better landmarks within reach Public/Granted day:2008-05-29
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