Zhenfeng He


2024

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Position Paper: Data-Centric AI in the Age of Large Language Models
Xinyi Xu | Zhaoxuan Wu | Rui Qiao | Arun Verma | Yao Shu | Jingtan Wang | Xinyuan Niu | Zhenfeng He | Jiangwei Chen | Zijian Zhou | Gregory Kang Ruey Lau | Hieu Dao | Lucas Agussurja | Rachael Hwee Ling Sim | Xiaoqiang Lin | Wenyang Hu | Zhongxiang Dai | Pang Wei Koh | Bryan Kian Hsiang Low
Findings of the Association for Computational Linguistics: EMNLP 2024

This position paper proposes a data-centric viewpoint of AI research, focusing on large language models (LLMs). We start by making a key observation that data is instrumental in the developmental (e.g., pretraining and fine-tuning) and inferential stages (e.g., in-context learning) of LLMs, and advocate that data-centric research should receive more attention from the community. We identify four specific scenarios centered around data, covering data-centric benchmarks and data curation, data attribution, knowledge transfer, and inference contextualization. In each scenario, we underscore the importance of data, highlight promising research directions, and articulate the potential impacts on the research community and, where applicable, the society as a whole. For instance, we advocate for a suite of data-centric benchmarks tailored to the scale and complexity of data for LLMs. These benchmarks can be used to develop new data curation methods and document research efforts and results, which can help promote openness and transparency in AI and LLM research.

2022

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DialMed: A Dataset for Dialogue-based Medication Recommendation
Zhenfeng He | Yuqiang Han | Zhenqiu Ouyang | Wei Gao | Hongxu Chen | Guandong Xu | Jian Wu
Proceedings of the 29th International Conference on Computational Linguistics

Medication recommendation is a crucial task for intelligent healthcare systems. Previous studies mainly recommend medications with electronic health records (EHRs). However, some details of interactions between doctors and patients may be ignored or omitted in EHRs, which are essential for automatic medication recommendation. Therefore, we make the first attempt to recommend medications with the conversations between doctors and patients. In this work, we construct DIALMED, the first high-quality dataset for medical dialogue-based medication recommendation task. It contains 11, 996 medical dialogues related to 16 common diseases from 3 departments and 70 corresponding common medications. Furthermore, we propose a Dialogue structure and Disease knowledge aware Network (DDN), where a QA Dialogue Graph mechanism is designed to model the dialogue structure and the knowledge graph is used to introduce external disease knowledge. The extensive experimental results demonstrate that the proposed method is a promising solution to recommend medications with medical dialogues. The dataset and code are available at https://github.com/f-window/DialMed.