Filtering system for providing personalized information in the absence of negative data
US7567958B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2000 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Jul 1, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99937
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for organizing a content site so that articles preferred by a user (viewer) of the site are brought to the fore for easy access. The system observes the user's actions during the normal course of browsing through a content site, and creates a model of the user's preferences for various types of articles. This model is created as an Internet user ‘clicks’ on articles which the user desires to read, without requiring any other feedback from the user. The user model is then employed to reorganize the content site so that the articles preferred by the user are presented in an order according to the user's interests. This model can also be used to present the user with advertising material based on the user's demonstrated interests. The system performs the above functions by using word vector-space representation of the documents combined with adaptive learning techniques. A word vector for a document is created by counting all the occurrences of each word in a document and creating a vector whose components comprise the word frequencies. A document is represented by a point in a high-dimensional space whose axes represent the words in a given dictionary. Thus, similar document…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.