User preference modeling method using fuzzy networks
US6338051B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 29, 1999 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Apr 29, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q30/02
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A user preference modeling method using fuzzy networks. The user preference modeling method includes the steps of: (a) changing a user modeling structure into a fuzzy network structure in which a plurality of layers including one or more graphs with one or more nodes are stacked; (b) when information is input from a user, searching a node directly associated with the input information on the fuzzy networks, and calculating a new preference for the node with a predetermined equation; (c) calculating connection strengths among each node in a graph to which the node belongs according to the new preference obtained in step (b) and calculating a new preference for each node of the graph according to the connection strengths; (d) when a node of the graph to which the node searched in step (b) belongs is a macro node of a graph of a lower layer, and a node is defined as the macro node if a graph of a lower layer defines sub-regions of the node, transferring a first message as preference change information from the macro node to the graph of the lower layer; (e) when the graph to which the node searched in step (b) belongs has a macro node in an upper layer, transferring a second message t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.