System and methods for units-based numeric information retrieval
US8756229B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2009 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Jul 18, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2216/11
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An information retrieval and analysis system for numeric data which provides high precision and recall for numeric search and uses a methodology for determining contextualization of the extracted data. The capabilities include extracting, parsing, and contextualizing numeric data including both a numeric value and an accompanying unit. This system facilitates the organization of largely unstructured numeric data into an inverted index and other database formats. An information retrieval system which enables the exploration and refinement of an extracted numeric data set defined by a search input that may be precise or initially vague. This system also facilitates analyzing and portraying numeric data graphically, creating knowledge by combining data from multiple sources, extracting correlations between seemingly disparate variables, and recognizing numeric data trends. This system uses local natural language processing, mathematical analysis, and expert-based scientific heuristics to score the numeric and contextual relevancy of the data to the query parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.