Papers by Thomas Friedrichs
DynaEval: Unifying Turn and Dialogue Level Evaluation (2021.acl-long)
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Chen Zhang, Yiming Chen, Luis Fernando D’Haro, Yan Zhang, Thomas Friedrichs, Grandee Lee, Haizhou Li
| Challenge: | Existing evaluation metrics focus on the turn-level quality of a dialogue . a unified framework that holistically considers the quality of the entire dialogue is needed . |
| Approach: | They propose a unified automatic evaluation framework which holistically considers the quality of the entire dialogue. |
| Outcome: | The proposed framework outperforms the state-of-the-art dialogue coherence model and correlates strongly with human judgements across multiple evaluation aspects at both turn and dialogue level. |
FineD-Eval: Fine-grained Automatic Dialogue-Level Evaluation (2022.emnlp-main)
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| Challenge: | Recent model-based reference-free metrics for open-domain dialogue evaluation lack correlations with human judgment and poor interpretability. |
| Approach: | They propose a multi-dimensional dialogue-level metric with three sub-metrics targeting a specific dimension. |
| Outcome: | The proposed metric outperforms existing models and sub-metrics in three high-quality dialogue evaluation benchmarks. |