Document analysis and multi-word term detector
US8090724B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2007 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Dec 1, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/917
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A term analyzer receives an ordered collection of text-based terms. The ordered collection can contain terms from a document that have been filtered to remove “noise” such as stopwords. The term analyzer analyzes groupings of consecutive text-based terms in the ordered collection to identify occurrences of different combinations of text-based terms in the ordered collection. In addition, the term analyzer maintains frequency information representing the occurrences of the different combinations of text-based terms in the collection. The frequency information can then be used to determine relatively significant keywords and/or keyword phrases in the document. In an example configuration, the term analyzer creates a tree in which a first term in a given grouping of the groupings is defined as a parent node in the tree and a second term in the given grouping is defined as a child node of the parent node in the tree. The method of the analyzer generalizes to create a tree of multi-word terms in which the terms can be efficiently ranked by occurrence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.