Abstract:Off-topic spoken response detection, the task aiming at predicting whether a response is offtopic for the corresponding prompt, is important for an automated speaking assessment system. In many real-world educational applications, off-topic spoken response detectors are required to achieve high recall for off-topic responses not only on seen prompts but also on prompts that are unseen during training. In this paper, we propose a novel approach for offtopic spoken response detection with high offtopic recall on… Show more
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