Computer-Implemented Systems and Methods for Measuring Discourse Coherence
- Author(s):
- Burstein, Jill; Somasundaran, Swapna; Chodorow, Martin
- Patent Issued:
- May 30, 2017
- Patent Number:
- 9,665,566
- Source:
- ETS Patent
- Document Type:
- Patent
- Family ID:
- 1000002615344
- Subject/Key Words:
- Patent, Active Patent, Automated Scoring and Natural Language Processing, Automated Response Evaluation, Discourse Coherence, Lexical Chaining, Computer-Implemented
Abstract
Systems and methods are provided for automatically generating a coherence score for a text using a scoring model. A lexical chain is identified within a text to be scored, where the lexical chain comprises a set of words spaced within the text. A discourse element is identified within the text, where the discourse element comprises a word within the text. A coherence metric is determined based on a relationship between the lexical chain and the discourse element. A coherence score is generated using a scoring model by providing the coherence metric to the scoring model.