Path optimization using multi-domain knowledge graphs for inference in dialog systems
US12333447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2021 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Apr 20, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N5/022
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An inference device includes processing circuitry to generate integrated information by combining items of information respectively belonging to domains different from each other included in dynamically changing external information by means of forward chaining by using knowledge information including information regarding a human's condition and information regarding a human's action and provided from a knowledge base and an inference rule provided from a rule database. Each of the items of information respectively belonging to domains different from each other is information that can be represented as a directed graph including a node and an edge. The integrated information is an integrated graph. The processing circuitry calculates an importance level of a node as a component of the integrated graph from a probability of arriving at the node in a stationary state reached by performing a random walk on the integrated graph or by using an algorithm of PageRank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.