Document analysis apparatus, document analysis method, and computer-readable recording medium
US9311392B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2011 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Aug 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/335
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A document analysis apparatus comprises: a feature expression acquisition unit acquiring a feature expression appearing during an attention period in an analysis object document collection; a document collection acquisition unit acquiring a feature expression containing document (FECD) collection in which a feature expression appears, from an analysis population including an analysis object document collection; a context determination unit specifying an analysis/FECD corresponding to an analysis object document among a FECD collection for every feature expression, and specifies a context in which the feature expression appeared in multiple analysis/FECDs; a context comparison determination unit specifying a non analysis/FECD not corresponding to an analysis object document among a FECD collection, and within that, compares a context in which the feature expression has appeared and a context specified previously; and a feature degree setting unit performing giving or the like of a feature degree to a feature expression from the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.