Unsupervised adaptation of sentiment lexicon
US11170168B2 · kind B2 · utility
1Cited by
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14Claims
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Key dates
| Filing date | Apr 11, 2019 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Apr 11, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/63
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, system, and computer program product for unsupervised automated generation of lexicons in a specified target domain, comprising tokens having domain-specific sentiment orientation, by selecting a seed set of tokens from a source lexicon; generating a candidate set of tokens from a text corpus in the target domain based on a similarity parameter with the seed set; calculating a sentiment score for each of the tokens in the candidate set; and automatically updating the source lexicon based on the candidate list.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.