Papers by Jingyang Hu
Data Pollination: An Emergent Ecological Process Driving AI Population Evolution (2026.acl-long)
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| Challenge: | evidence from deployed systems suggests that language models interact through a shared data ecosystem. |
| Approach: | They propose to use data pollination to investigate stability dynamics under synthetic data training to investigate model collapse. |
| Outcome: | The proposed model can mitigate model collapse observed in recursive training, and improve performance across benchmarks. |
ZoomRAG: Hierarchical Random-walk Zooming across Multi-scale Information Graphs for Fast and Accurate RAG (2026.findings-acl)
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Xianming Hu, Jingyang Chen, Bin Tang, Yihe Liu, Yihong Huang, Hongbo Zhao, Nuoyi Chen, Jie Zhang, Ping Li, Kai Zhang
| Challenge: | retrieval-augmented generation (RAG) is a powerful tool for NLP applications . but it is challenging to encode large knowledge bases as compact offline structures . |
| Approach: | They propose a coarse-to-fine hierarchical graph inference method that uses random walks to retrieve information from a corpus of documents. |
| Outcome: | The proposed method reduces offline indexing costs and accelerates retrieval. |