System for ranking the relevance of information objects accessed by computer users
USRE41899E1 · kind E1 · reissue
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2003 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Mar 12, 2023 |
Classification
- Technology area (CPC —)General
Abstract
Information presented to a user via an information access system is ranked according to a prediction of the likely degree of relevance to the user's interests. A profile of interests is stored for each user having access to the system. Items of information to be presented to a user are ranked according to their likely degree of relevance to that user and displayed in order of ranking. The prediction of relevance is carried out by combining data pertaining to the content of each item of information with other data regarding correlations of interests between users. A value indicative of the content of a document can be added to another value which defines user correlation, to produce a ranking score for a document. Alternatively, multiple regression analysis or evolutionary programming can be carried out with respect to various factors pertaining to document content and user correlation, to generate a prediction of relevance. The user correlation data is obtained from feedback information provided by users when they retrieve items of information. Preferably, the user provides an indication of interest in each document which he or she retrieves from the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.