06871202 is referenced by 170 patents and cites 14 patents.

A method and apparatus for ranking a plurality of pages identified during a search of a linked database includes forming a linear combination of two or more matrices, and using the coefficients of the eigenvector of the resulting matrix to rank the quality of the pages. The matrices includes information about the pages and are generally normalized, stochastic matrices. The linear combination can include attractor matrices that indicate desirable or “high quality” sites, and/or non-attractor matrices that indicate sites that are undesirable. Attractor matrices and non-attractor matrices can be used alone or in combination with each other in the linear combination. Additional bias toward high quality sites, or away from undesirable sites, can be further introduced with probability weighting matrices for attractor and non-attractor matrices. Other known matrices, such as a co-citation matrix or a bibliographic coupling matrix, can also be used in the present invention.

Method and apparatus for ranking web page search results
Application Number
Publication Number
6871202 (B2)
Application Date
May 6, 2003
Publication Date
March 22, 2005
Andrei Z Broder
Menlo Park
Brown Raysman Millstein Felder & Steiner
Overture Services
G06F 017/30
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