Rating difficulty of questions
US9740985B2 · kind B2 · utility
299Cited by
3References
16Claims
0Family size
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Key dates
| Filing date | Jun 4, 2014 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Oct 11, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N20/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A mechanism is provided in a data processing system for rating difficulty of a question. The mechanism receives an input question and generates one or more candidate answers from a corpus of knowledge using a pipeline of software engines. The pipeline of software engines generates a plurality of features extracted from the question, the one or more candidate answers, or the corpus of knowledge. The mechanism then generates a question difficulty score based on the plurality of features using a machine learning model. The machine learning model maps features to assigned weights for scaling the difficulty score.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.