System and method for rapid computation of PageRank
US7089252B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2002 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | May 3, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99942
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of ranking a plurality of linked documents. The method comprises obtaining a plurality of documents, and determining a rank of each document. The rank of each document is generally a function of a rank of all other documents in the plurality of documents which point to the document and is determined by solving, by equation-solving methods (including Gauss-Seidel iteration and partitioning) of a set of equations wherein:where xi is the rank of the page indexed by i, α is a number strictly between 0 and 1.0, the summation is over all indices j such that page j points to page i, and aij is defined to be the reciprocal of the number of links pointing out from page j (denoted dj) if page j points to page i, and zero otherwise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.