Systems and Methods for Automatic Detection of Plagiarized Spoken Responses
- Author(s):
- Wang, Xinhao; Evanini, Keelan; Bruno, James; Mulholland, Matthew
- Patent Issued:
- Aug 17, 2021
- Patent Number:
- 11,094,335
- Source:
- ETS Patent
- Document Type:
- Patent
- Family ID:
- 77274052
- Subject/Key Words:
- Patent, Active Patent, Plagiarism, Spoken Language Assessment, Language Proficiency, Spontaneous Spoken Language
Abstract
Systems and methods are provided for automatic detection of plagiarized spoken responses during standardized testing of language proficiency. A first spoken response to a speaking task that elicits spontaneous speech and a second spoken response to a source-based speaking task that is assumed to be non-plagiarized are digitally recorded. A first and second sets of speaking proficiency features are calculated for the first and the second spoken response, respectively. The first spoken response is classifying as plagiarized or non-plagiarized based on the comparison between the first and the second set of speaking proficiency features. Corresponding apparatuses, systems, and methods are also disclosed.