Retrieving, detecting and identifying major and outlier clusters in a very large database
US6920450B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2002 |
| Grant date | Jul 19, 2005 |
| Priority date | — |
| Expiry date | Oct 27, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99935
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a method, a computer system, a computer readable medium and a sever. The method of the present invention comprises steps of; creating said document matrix from said documents using at least one attribute; creating a scaled residual matrix based on said document matrix using a predetermined function; executing singular value decomposition to obtain a basis vector corresponding to the largest singular value; re-constructing said residual matrix and scaling dynamically said re-constructed residual matrix to obtain another basis vector; repeating said singular value decomposition step to said re-constructing step to create a predetermined set of basis vector; and executing reduction of said document matrix to perform detection, retrieval and identification of said documents in said database.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.