Papers by Nghia Trung Ngo
Hierarchical Selection of Important Context for Generative Event Causality Identification with Optimal Transports (2024.lrec-main)
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| Challenge: | Existing methods for Event Causality Identification (ECI) rely on external toolkits or human annotation to obtain training signals. |
| Approach: | They propose a generative framework that leverages Optimal Transport to automatically select the most important sentences and words from full documents. |
| Outcome: | The proposed framework can predict causal relation between two events in text without external tools. |
CulturaX: A Cleaned, Enormous, and Multilingual Dataset for Large Language Models in 167 Languages (2024.lrec-main)
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Thuat Nguyen, Chien Van Nguyen, Viet Dac Lai, Hieu Man, Nghia Trung Ngo, Franck Dernoncourt, Ryan A. Rossi, Thien Huu Nguyen
| Challenge: | Existing training datasets for large language models are often not fully disclosed. |
| Approach: | They propose a multilingual dataset with 6.3 trillion tokens in 167 languages . they use a pipeline of multiple stages to achieve the best quality for model training . |
| Outcome: | The proposed dataset is cleaned and deduplicated to achieve the best quality for model training . lack of transparency has hindered research on attributing and addressing hallucination and bias issues . 6.3 trillion tokens in 167 languages are used to train multilingual LLMs . |
Explainable Disentangled Representation Learning for Generalizable Authorship Attribution in the Era of Generative AI (2026.acl-long)
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| Challenge: | Existing methods struggle with content-style entanglement, leading to poor generalization across domains. |
| Approach: | They propose an explanation-by-design framework that explicitly disentangles style from content through architectural separation-by design. |
| Outcome: | The proposed framework disentangles style from content through architectural separation-by-design. |