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Jihoon TackContact: jihoontack@{gmail.com,microsoft.com} |
About
I am a Senior Researcher at AI Interaction and Learning group in Microsoft Research Redmond. I obtained my Ph.D. degree at KAIST, where I was advised by Jinwoo Shin. During my Ph.D., I have interned under or closely collaborated with Xian Li at Meta FAIR, Jonathan Richard Schwarz at Google DeepMind (now at Thomson Reuters), Yee Whye Teh at University of Oxford, and Jaeho Lee at POSTECH.
My research is primarily centered on developing efficient machine learning frameworks to address scalability challenges posed by large-scale models, with a particular focus on large language models. I am fortunate to be a recipient of Google Ph.D. Fellowship in machine learning.
Publications
* denotes equal contribution
- Scalable and Robust LLM Unlearning by Correcting Responses with Retrieved Exclusions Junbeom Kim, Kyuyoung Kim, Jihoon Tack, Dongha Lim, Jinwoo Shin
paper | code
- Think Clearly: Improving Reasoning via Redundant Token Pruning Daewon Choi, Jimin Lee, Jihoon Tack, Woomin Song, Saket Dingliwal, Sai Muralidhar Jayanthi, Bhavana Ganesh, Jinwoo Shin, Aram Galstyan, Sravan Babu Bodapati
EMNLP 2025 (Findings)
paper | code
- Mamba Drafters for Speculative Decoding Daewon Choi, Seunghyuk Oh, Saket Dingliwal, Jihoon Tack, Kyuyoung Kim, Woomin Song, Seojin Kim, Insu Han, Jinwoo Shin, Aram Galstyan, Shubham Katiyar, Sravan Babu Bodapati
EMNLP 2025 (Findings)
paper | code
- ReGUIDE: Data Efficient GUI Grounding via Spatial Reasoning and Search Hyunseok Lee, Jeonghoon Kim, Beomjun Kim, Jihoon Tack, Chansong Jo, Jaehong Lee, Cheonbok Park, Sookyo In, Jinwoo Shin, Kang Min Yoo
paper | code
- LLM Pretraining with Continuous Concepts Jihoon Tack, Jack Lanchantin, Jane Yu, Andrew Cohen, Ilia Kulikov, Janice Lan, Shibo Hao, Yuandong Tian, Jason Weston, Xian Li
NeurIPS Workshop on Mechanistic Interpretability 2025
paper | code
- ReVISE: Learning to Refine at Test-Time via Intrinsic Self-Verification Hyunseok Lee*, Seunghyuk Oh*, Jaehyung Kim, Jinwoo Shin, Jihoon Tack
ICML 2025
paper | code
- Learning to Contextualize Web Pages for Enhanced Decision Making by LLM Agents Dongjun Lee, Juyong Lee, Kyuyoung Kim, Jihoon Tack, Jinwoo Shin, Yee Whye Teh, Kimin Lee
ICLR 2025
paper | code
- Sparsified State-Space Models are Efficient Highway Networks Woomin Song, Jihoon Tack, Sangwoo Mo, Seunghyuk Oh, Jinwoo Shin
TMLR 2025
NeurIPS Workshop on Efficient Natural Language and Speech Processing 2024, Oral presentation
paper | code
- Online Adaptation of Language Models with a Memory of Amortized Contexts Jihoon Tack, Jaehyung Kim, Eric Mitchell, Jinwoo Shin, Yee Whye Teh, Jonathan Richard Schwarz
NeurIPS 2024
paper | code | slide | poster | project page
- ReMoDetect: Reward Models Recognize Aligned LLM's Generations Hyunseok Lee*, Jihoon Tack*, Jinwoo Shin
NeurIPS 2024
Qualcomm Innovation Fellowship Korea 2024
paper | code | slide | poster | project page | demo
- Optimized Feature Generation for Tabular Data via LLMs with Decision Tree Reasoning Jaehyun Nam*, Kyuyoung Kim*, Seunghyuk Oh, Jihoon Tack, Jaehyung Kim, Jinwoo Shin
NeurIPS 2024
paper | code
- Tabular Transfer Learning via Prompting LLMs Jaehyun Nam, Woomin Song, Seong Hyeon Park, Jihoon Tack, Sukmin Yun, Jaehyung Kim, Jinwoo Shin
COLM 2024
paper | code
- Unleashing the Power of Meta-tuning for Few-shot Generalization Through Sparse Interpolated Experts Shengzhuang Chen, Jihoon Tack, Yunqiao Yang, Yee Whye Teh, Jonathan Richard Schwarz, Ying Wei
ICML 2024
paper | code
- Learning Large-scale Neural Fields via Context Pruned Meta-Learning Jihoon Tack, Subin Kim, Sihyun Yu, Jaeho Lee, Jinwoo Shin, Jonathan Richard Schwarz
NeurIPS 2023
paper | code | slide | poster
- Modality-Agnostic Self-Supervised Learning with Meta-Learned Masked Auto-Encoder Huiwon Jang*, Jihoon Tack*, Daewon Choi, Jongheon Jeong, Jinwoo Shin
NeurIPS 2023
paper | code
- Modality-Agnostic Variational Compression of Implicit Neural Representations Jihoon Tack*, Jonathan Richard Schwarz*, Yee Whye Teh, Jaeho Lee, Jinwoo Shin
ICML 2023
paper | poster
- STUNT: Few-shot Tabular Learning with Self-generated Tasks from Unlabeled Tables Jaehyun Nam, Jihoon Tack, Kyungmin Lee, Hankook Lee, Jinwoo Shin
ICLR 2023, Spotlight presentation
Samsung Humantech Paper Awards 2023, Bronze Prize
paper | code
- Rethinking the Entropy of Instance in Adversarial Training Minseon Kim, Jihoon Tack, Jinwoo Shin, Sung Ju Hwang
IEEE SaTML 2023
paper
- Meta-Learning with Self-Improving Momentum Target Jihoon Tack, Jongjin Park, Hankook Lee, Jaeho Lee, Jinwoo Shin
NeurIPS 2022
paper | code | slide | poster
- K-centered Patch Sampling for Efficient Video Recognition Seong Hyeon Park, Jihoon Tack, Byeongho Heo, Jung-Woo Ha, Jinwoo Shin
ECCV 2022
paper | code
- Generating Videos with Dynamics-aware Implicit Generative Adversarial Networks Sihyun Yu*, Jihoon Tack*, Sangwoo Mo*, Hyunsu Kim, Junho Kim, Jung-Woo Ha, Jinwoo Shin
ICLR 2022
paper | code | slide | project page
- Consistency Regularization for Adversarial Robustness Jihoon Tack, Sihyun Yu, Jongheon Jeong, Minseon Kim, Sung Ju Hwang, Jinwoo Shin
AAAI 2022
ICML Workshop on Adversarial Machine Learning 2021, Oral presentation
Best Paper Award, Korean Artificial Intelligence Association 2021
paper | code | slide | poster
- Meta-Learning Sparse Implicit Neural Representations Jihoon Tack*, Jaeho Lee*, Namhoon Lee, Jinwoo Shin
NeurIPS 2021
paper | code | slide | poster
- CSI: Novelty Detection via Contrastive Learning on Distributionally Shifted Instances Jihoon Tack*, Sangwoo Mo*, Jongheon Jeong, Jinwoo Shin
NeurIPS 2020
Qualcomm Innovation Fellowship Korea 2020
paper | code | slide | poster
- Adversarial Self-Supervised Contrastive Learning Minseon Kim, Jihoon Tack, Sung Ju Hwang
NeurIPS 2020
paper | code | project page
Experience
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Senior Researcher, Microsoft Research, AI Interaction and Learning Group, Nov. 2025 - Present
Research Scientist Intern, Meta FAIR (Host: Xian Li), Jun. 2024 - Mar. 2025
Visiting Student / Collaborator, University of Oxford (Host: Yee Whye Teh), Jun. 2023 - May 2024
External Collaborator, Jonathan Richard Schwarz at DeepMind → Thomson Reuters, Jun. 2022 - May 2024
External Collaborator, Jaeho Lee at POSTECH, Apr. 2022 - May 2023
Education
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Ph.D. in Artificial Intelligence
Korea Advanced Institute of Science and Technology (KAIST), Mar. 2019 - Aug. 2025
Advisor: Jinwoo Shin
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B.S. in Electrical Engineering and Mathematics (minored)
Korea Advanced Institute of Science and Technology (KAIST), Mar. 2014 - Feb. 2019
Honors and Awards
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Qualcomm Innovation Fellowship Korea 2024
Google Ph.D. Fellowship 2023, Research Area: Machine Learning
Samsung Humantech Paper Awards 2023, Bronze Prize
Best Paper Award, Korean Artificial Intelligence Association 2021
Qualcomm Innovation Fellowship Korea 2020
Conference Scholar Award: NeurIPS 2023
Reviewer Awards: NeurIPS 2020, CVPR 2021, NeurIPS 2022, ICLR 2025
Academic Activities
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Conference Reviewer: NeurIPS, ICML, ICLR, CVPR, ICCV, AAAI
Journal Reviewer: TMLR, IJCV, IEEE TPAMI, IEEE TNNLS, IEEE TIFS, IEEE TIP
