Papers by Jinghan Xu
VALU: A Benchmark for Video Anomaly Temporal Localization and Understanding at Multiple Semantic Levels (2026.acl-long)
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Yixiao He, Menghao Zhang, Haifeng Sun, Jing Wang, Kangheng Lin, Jinghan Wang, Chenye Xu, Pengfei Ren, Qi Qi, Jingyu Wang
| Challenge: | Recent advances in Video Large Language Models (Video-LLMs) enhance the ability of VAU models to describe and interpret anomalies. |
| Approach: | They propose a benchmark that explicitly defines anomalies across five semantic levels and provides detailed temporal boundaries and detailed textual descriptions for each. |
| Outcome: | The proposed benchmark defines anomalies across five semantic levels and provides detailed descriptions for each. |
DEEPER Insight into Your User: Directed Persona Refinement for Dynamic Persona Modeling (2025.acl-long)
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Aili Chen, Chengyu Du, Jiangjie Chen, Jinghan Xu, Yikai Zhang, Siyu Yuan, Zulong Chen, Liangyue Li, Yanghua Xiao
| Challenge: | Existing methods for generating personas from static historical data fail to capture dynamic behaviors and evolving preferences in real-world interactive scenarios. |
| Approach: | They propose a novel approach that iteratively updates personas using streaming user behavior data to continually enhance their quality. |
| Outcome: | The proposed approach delivers 32.2% reduction in user behavior prediction error over four update rounds, outperforming the best baseline by 22.92%. |
Scaling Under-Resourced TTS: A Data-Optimized Framework with Advanced Acoustic Modeling for Thai (2025.acl-industry)
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| Challenge: | Text-to-speech (TTS) systems are limited by limited data and linguistic complexities. |
| Approach: | They propose a data-optimized framework with an advanced acoustic model to build high-quality TTS systems for low-resource scenarios. |
| Outcome: | The proposed framework enables zero-shot voice cloning and improved performance across diverse client applications, including finance, healthcare, education, and law. |
Relabeling Minimal Training Subset to Flip a Prediction (2024.findings-eacl)
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| Challenge: | Existing methods to identify and relabel training subsets that can flip a prediction are not efficient, argues a new study. |
| Approach: | They propose an algorithm to identify and relabel the smallest training subset St needed to flip a prediction. |
| Outcome: | The proposed algorithm can flip a prediction on a test point xt with 2% of training points . the proposed method can be used for multiple purposes including evaluating model robustness . |