✉ Email [email protected] :github-logo: GitHub | 🎓 Google Scholar

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About Me

Hi, I am a Ph.D student at Yonsei University, currently advised by Prof. Baekcheol Jang at the ANDLab. I was previously advised by Prof. Dongha Lee.

My research interests lie in Personalized AI, Large Language Models and Information Retrieval with a broader interest in building practical AI systems for real-world applications.

If you're interested in discussing research or potential collaborations, feel free to reach out! 👋

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🏛Education

**Yonsei University (**Seoul, Korea) ****Integrated M.S./Ph.D. Student (ABD) Mar 2023 - Present Department of Artificial Intelligence

**Dongguk University (**Seoul, Korea) ****Undergraduate Student Mar 2018 - Aug 2022 Bachelor of Science in Engineering Bachelor of Science in Industrial Information Software Convergence GPA 4.24/4.5 (Summa Cum Laude)

📚Publications

• Personalized Deep Research Query Refinement with Graph-Scaffolded Evidence Grounding Soojin Yoon, Dongha Lee† arXiv, Aug. 2026 [paper, code]
• IPQA: A Benchmark for Core Intent Identification in Personalized Question Answering Jieyong Kim, Maryam Amirizaniani, Soojin Yoon, Dongha Lee† SIGIR, 2026 [paper]
• MVIGER: Multi-View Variational Integration of Complementary Knowledge for Generative Recommender Tongyoung Kim, Soojin Yoon, SeongKu Kang, Jinyoung Yeo, Dongha Lee† SIGIR, 2026 [paper]
• RPM: Reasoning-Level Personalization for Black-Box Large Language Models Jieyong Kim*, Tongyoung Kim*, Soojin Yoon, Jaehyung Kim, Dongha Lee† ICLR, 2026 [paper]
• Towards Personalized Conversational Sales Agents: Contextual User Profiling for Strategic Action Tongyoung Kim*, Jeongeun Lee*, Soojin Yoon, Sunghwan Kim, Dongha Lee† EMNLP (Findings), 2025 [paper]
• Unsupervised Robust Cross-Lingual Entity Alignment via Neighbor Triple Matching with Entity and Relation Texts Soojin Yoon, Sungho Ko, Tongyoung Kim, SeongKu Kang, Jinyoung Yeo, Dongha Lee† WSDM, 2025 [paper, code]
• A Study on the Experiences of Picture Book Bibliotherapy, Reading Habit Formation, and Intergenerational Interactions in a Book Club Between Middle-Aged and Young People Jiyoung Kim, Soojin Yoon JKOSIM, 2024 [paper]
• Methods of Extracting Features from ECG heartbeats Yoon Soo Jin, Moon So Yeon, Kwon Na Yong, Kim Donald† 2nd Korea Artificial Intelligence Conference, 2021

⚙️Projects