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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.

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