Patent №
US 9,799,228
Granted
2017-10-24
Filed 2014
Owner
EDUCATIONAL TESTING SERVICE
Lab
—
AI components
5
ml · nlp · speech · kr · hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
14152178
Computer-implemented systems and methods are provided for scoring content of a spoken response to a prompt. A scoring model is generated for a prompt, where generating the scoring model includes generating a transcript for each of a plurality of training responses to the prompt, dividing the plurality of training responses into clusters based on the transcripts of the training responses, selecting a subset of the training responses in each cluster for scoring, scoring the selected subset of training responses for each cluster, and generating content training vectors using the transcripts from the scored subset. A transcript is generated for a received spoken response to be scored, and a similarity metric is computed between the transcript of the spoken response to be scored and the content training vectors. A score is assigned to the spoken response based on the determined similarity metric.
AI classification
Ownership
EDUCATIONAL TESTING SERVICE
assignment · 328270103
Assignors
CHEN, LEI, ZECHNER, KLAUS, LOUKINA, ANASTASSIA
On an employer assignment, the assignors are typically the inventors.