Papers by Hoonsang Yoon
From Documents to Segments: A Contextual Reformulation for Topic Assignment (2026.findings-acl)
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| Challenge: | Traditional topic modeling treats each document as a single, coherent unit of topic. |
| Approach: | They propose a paradigm that redefines topic assignment at the level of segments . they propose 'segment intrusion task' to extend word intrusion to the span level . |
| Outcome: | The proposed paradigm improves topic purity, interpretability and applicability to multi-theme corpora. |
Mismatch between Multi-turn Dialogue and its Evaluation Metric in Dialogue State Tracking (2022.acl-short)
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| Challenge: | Existing evaluation metrics for dialog state tracking are limited for belief states accumulated as dialog proceeds . relative slot accuracy allows intuitive evaluation by assigning relative scores according to the turn of each dialog . |
| Approach: | They propose to use relative slot accuracy to complement existing evaluation metrics . joint goal accuracy and slot accuracy are used to evaluate accumulated belief states . |
| Outcome: | The proposed metrics focus on "penalizing states that fail to predict," not "reward for well-predicted states" the proposed metrics do not depend on the number of predefined slots, and allow intuitive evaluation . |