AAAI Publications, Twenty-Fifth International FLAIRS Conference

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Evaluating and Improving Real-Time Tracking of Children’s Oral Reading
Yuanpeng Li, Jack Mostow

Last modified: 2012-05-16


The accuracy of an automated reading tutor in tracking the reader’s position is affected by phenomena at the frontier of the speech recognizer’s output as it evolves in real time. We define metrics of real-time tracking accuracy computed from the recognizer’s successive partial hypotheses, in contrast to previous metrics computed from the final hypothesis. We analyze the resulting considerable loss in real-time accuracy, and propose and evaluate a method to address it. Our method raises real-time accuracy from 58% to 70%, which should improve the quality of the tutor’s feedback.

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