Hello, this is Yingchaojie Feng (封颖超杰). I received my Ph.D. in Computer Engineering at Zhejiang University under the supervision of Prof. Wei Chen in VAI group. Before that, I received my B.S. degree from Zhejiang University of Technology.

My research interests include visual analytics and natural language interaction. Specifically, I design and develop visual and interactive systems to facilitate the understanding and utility of NLP models for downstream tasks, including creative tasks (e.g., text-to-image, painting-to-poetry) and analytical tasks (e.g., NLI-based data analysis).

🔥 News

  • 2025.06:  🎉 GSTansform is selected for an oral presentation at ACL 2025!
  • 2025.05:  🎉 Our paper about visual analysis of jailbreak attacks (JailbreakLens) is accepted by IEEE TVCG, 2025!
  • 2025.05:  🎉 Our paper about instruction-following text embedding (GSTansform) is accepted by ACL, 2025!
  • 2025.03:  🎉 Our paper about LLM-powered business intelligence platform (DataLab) is accepted by IEEE ICDE, 2025!
  • 2024.11:  🎉 Our paper about insight exploration for LLM-powered data analysis (InsightLens) is accepted by IEEE TVCG, (PacificVis 2025)!
  • 2024.04:  🎉 Our paper about visual analysis of LLM-based Autonomous Systems (AgentLens) is accepted by IEEE TVCG, 2024!
  • 2023.07:  📢 I presented “PromptMagician: Interactive Prompt Engineering for Text-to-Image Creation” at ChinaVis 2023 in Chongqing.
  • 2023.07:  🎉 Our paper “PromptMagician: Interactive Prompt Engineering for Text-to-Image Creation” is finally accepted by IEEE VIS 2023!
  • 2023.01:  🎉 Our paper “XNLI: Explaining and Diagnosing NLI-based Visual Data Analysis” is finally accepted by IEEE TVCG, 2023!

📝 Publications

ACL 2025
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Don’t Reinvent the Wheel: Efficient Instruction-Following Text Embedding based on Guided Space Transformation

Yingchaojie Feng, Yiqun Sun, Yandong Sun, Minfeng Zhu, Qiang Huang, Anthony K. H. Tung, Wei Chen

ACL (Oral Presentation), 2025

arXiv

TVCG 2025
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JailbreakLens: Visual Analysis of Jailbreak Attacks Against Large Language Models

Yingchaojie Feng, Zhizhang Chen, Zhining Kang, Sijia Wang, Minfeng Zhu, Wei Zhang, and Wei Chen

IEEE Transactions on Visualization and Computer Graphics, 2025

IEEEXplore | arXiv

ICDE 2025
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DataLab: A Unified Platform for LLM-Powered Business Intelligence

Luoxuan Weng, Yinghao Tang, Yingchaojie Feng, Zhuo Chang, Ruiqin Chen, Haozhe Feng, Chen Hou, Danqing Huang, Yang Li, Huaming Rao, Haonan Wang, Canshi Wei, Xiaofeng Yang, Yuhui Zhang, Yifeng Zheng, Xiuqi Huang, Minfeng Zhu, Yuxin Ma, Bin Cui, Peng Chen, Wei Chen

IEEE International Conference on Data Engineering, 2025

arXiv

TVCG 2025
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InsightLens: Augmenting LLM-Powered Data Analysis with Interactive Insight Management and Navigation

Luoxuan Weng, Xingbo Wang, Junyu Lu, Yingchaojie Feng, Yihan Liu, Haozhe Feng, Danqing Huang, Wei Chen

IEEE Transactions on Visualization and Computer Graphics (Proc. of PacificVis), 2025

IEEEXplore | arXiv | Video

TVCG 2024
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AgentLens: Visual Analysis for Agent Behaviors in LLM-based Autonomous Systems

Jiaying Lu, Bo Pan, Jieyi Chen, Yingchaojie Feng, Jingyuan Hu, Yuchen Peng, Wei Chen

IEEE Transactions on Visualization and Computer Graphics, 2024

IEEEXplore | arXiv | Video

VIS 2023
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PromptMagician: Interactive Prompt Engineering for Text-to-Image Creation

Yingchaojie Feng, Xingbo Wang, Kam Kwai Wong, Sijia Wang, Yuhong Lu, Minfeng Zhu, Baicheng Wang, Wei Chen

IEEE Transactions on Visualization and Computer Graphics (VIS 2023)

IEEEXplore | arXiv | Github | Video

TVCG 2023
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XNLI: Explaining and Diagnosing NLI-based Visual Data Analysis

Yingchaojie Feng, Xingbo Wang, Bo Pan, Kam Kwai Wong, Yi Ren, Shi Liu, Zihan Yan, Yuxin Ma, Huamin Qu, Wei Chen

IEEE Transactions on Visualization and Computer Graphics, 2023

IEEEXplore | arXiv | Video

ChinaVis 2021
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iPoet: interactive painting poetry creation with visual multimodal analysis

Yingchaojie Feng, Jiazhou Chen, Keyu Huang, Jason K. Wong, Hui Ye, Wei Zhang, Rongchen Zhu, Xiaonan Luo, Wei Chen

Journal of Visualization, 2021

PDF | DOI