Papers by Mingi Shin
Unified Neural Topic Model via Contrastive Learning and Term Weighting (2023.eacl-main)
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| Challenge: | Recent techniques employ pretrained language models to improve topic quality. |
| Approach: | They propose a topic-based model that uses contrastive learning and term weighting to learn from a pretrained language model and discover influential terms from semantically coherent clusters. |
| Outcome: | The proposed model outperforms baselines across multiple topic coherence measures and can be used as an add-on to existing topic models and improves their performance. |
Detecting Offensive Language in an Open Chatbot Platform (2024.lrec-main)
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Hyeonho Song, Jisu Hong, Chani Jung, Hyojin Chin, Mingi Shin, Yubin Choi, Junghoi Choi, Meeyoung Cha
| Challenge: | Existing efforts to automatically filter offensive language are vulnerable to users’ deliberate text manipulation tactics, such as misspelling words. |
| Approach: | They propose a contrastive learning model that embeds chat content with a random masking strategy to detect offensive language in open-domain chat conversations. |
| Outcome: | The proposed model outperforms existing models in detecting offensive language in open-domain chat conversations while also showing robustness against users’ deliberate text manipulation tactics when using offensive language. |