Papers by Zhiyun Chen
A Large Scale Speech Sentiment Corpus (2020.lrec-1)
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| Challenge: | Existing corpus for sentiment analysis uses text inputs, but voice inputs are becoming more important as smart assistants and mobile voice control become more prevalent. |
| Approach: | They propose to extend the Switchboard-1 Telephone Speech Corpus by adding sentiment labels from 3 different human annotators for every transcript segment. |
| Outcome: | The proposed corpus contains 49500 labeled speech segments covering 140 hours of audio. |
A Knowledge Graph Reasoning-Based Model for Computerized Adaptive Testing (2025.coling-main)
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| Challenge: | Existing studies have failed to account for the differences in concept relevance when a question involves multiple concepts . |
| Approach: | They propose a Knowledge Graph Reasoning-Based Model for CAT that captures semantic and relational information between concepts and questions and incorporates multiple evaluation objectives. |
| Outcome: | The proposed model outperforms existing methods on three authentic educational datasets. |