Distance queries on massive networks
US9576073B2 · kind B2 · utility
3Cited by
2References
19Claims
0Family size
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Key dates
| Filing date | Jun 2, 2014 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Feb 8, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Distance query techniques are provided that are robust to network structure, scale to large and massive networks, and are fast, straightforward, and efficient. A hierarchical hub labeling (HHL) technique is described to determine a distance between two nodes or vertices on a network. The HHL technique provides indexing by ordering vertices by importance, then transforming the ordering into an index, which enables fast exact shortest-path distance queries. The index may be compressed without sacrificing its correctness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.