Papers by Howoong Lee
Captioning for Text-Video Retrieval via Dual-Group Direct Preference Optimization (2025.findings-emnlp)
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| Challenge: | auxiliary captions are generic and indistinguishable across visually similar videos . conventional captioning approaches are evaluated using language relevance scores . |
| Approach: | They propose a retrieval framework that directly optimizes caption generation using retrieval relevance scores. |
| Outcome: | The proposed retrieval framework optimizes caption generation using retrieval relevance scores . dual-group direct preference optimization is a learning strategy that supervises captioning . |