Delong Chen

Visiting Researcher at Meta FAIR Paris

Ph.D. Candidate at HKUST

Delong Chen (陈德龙) is a third-year Ph.D. student at The Hong Kong University of Science and Technology (HKUST), advised by Prof. Pascale Fung. He is now a visiting researcher at Meta FAIR Paris. He is working on vision-language and world modeling.

Awards

Best Paper at AAAI 2023 Inaugural Summer Symposium Series - AI x Metaverse
Best Dataset Paper at Long-Tailed Distribution Learning Workshop, IJCAI 2021
Best Demo at IEEE ICME 2021
江苏省优秀本科毕业论文一等奖
河海大学2021届本科“优秀毕业生”荣誉称号
2020江苏省大学生网络文化节校园歌曲作品征集一等奖
“江苏省优秀共青团员”称号
“2019江苏省大学生年度人物”提名奖
2020年河海大学“海韵风华大学生年度人物”称号

Reviewer / Program Committee

ICLR, NeurIPS, CVPR, ICCV, ICML, ACL Rolling Review (ARR), AAAI, ACMMM
IEEE TPAMI, ACM TIST, Artificial Intelligence Review

Volunteer

AAAI 2024 (Vancouver, Canada)
ACL 2024 (Bangkok, Thailand)

Teaching Assistant

ELEC 1200 A System View of Communications (2024 Spring, HKUST)

Selected first & co-first aurthor papers. See full publication list in Google Scholar

Action100M: A Large-scale Video Action Dataset
Delong Chen, Tejaswi Kasarla, Yejin Bang, Mustafa Shukor, Willy Chung, Jade Yu, Allen Bolourchi, Theo Moutakanni, Pascale Fung
World Modeling Workshop (Mila, 2026)
[ facebookresearch/Action100M (300+ stars)]

VL-JEPA: Joint Embedding Predictive Architecture for Vision-language
Delong Chen*, Mustafa Shukor*, Theo Moutakanni*, Willy Chung*, Jade Yu, Tejaswi Kasarla, Allen Bolourchi, Yann LeCun, Pascale Fung
World Modeling Workshop (Mila, 2026)

Planning with Reasoning using Vision Language World Model
Delong Chen*, Theo Moutakanni*, Willy Chung, Yejin Bang, Ziwei Ji, Allen Bolourchi, Pascale Fung
World Modeling Workshop (Mila, 2026)

WorldPrediction: A Benchmark for High-level World Modeling and Long-horizon Procedural Planning
Delong Chen*, Willy Chung*, Yejin Bang, Ziwei Ji, Pascale Fung
ICML 2025 Workshop on Assessing World Models
[ facebookresearch/WorldPrediction]

Subobject-level Image Tokenization
Delong Chen, Samuel Cahyawijaya, Jianfeng Liu, Baoyuan Wang, Pascale Fung
ICML 2025
[ ChenDelong1999/subobjects] [🤗 AK's Huggingface Daily Paper] [ Demo]

What Makes for Good Image Captions?
Delong Chen, Samuel Cahyawijaya, Etsuko Ishii, Ho Shu Chan, Yejin Bang, Pascale Fung
EMNLP 2025 Findings & NeurIPS 2024 Workshop on Machine Learning and Compression

High-Dimension Human Value Representation in Large Language Models
Samuel Cahyawijaya*, Delong Chen*, Yejin Bang*, Leila Khalatbari, Bryan Wilie*, Ziwei Ji, Etsuko Ishii, Pascale Fung*
NAACL 2025 Main
[ HLTCHKUST/UniVaR]

Visual Instruction Tuning with Polite Flamingo
Delong Chen, Jianfeng Liu, Wenliang Dai, Baoyuan Wang
AAAI 2024
[ ChenDelong1999/polite-flamingo] [ ChenDelong1999/instruct-flamingo]

RemoteCLIP: A Vision Language Foundation Model for Remote Sensing
Fan Liu*, Delong Chen*, Zhangqingyun Guan, Xiaocong Zhou, Jiale Zhu, Jun Zhou
IEEE Transactions on Geoscience and Remote Sensing, 2024
[ ChenDelong1999/RemoteCLIP (500+ stars)] [ Paperswithcode Leaderboard]

ProtoCLIP: Prototypical Contrastive Language Image Pretraining
Delong Chen, Zhao Wu, Fan Liu, Zaiquan Yang, Huaxi Huang, Ying Tan, Erjin Zhou
IEEE Transactions on Neural Networks and Learning Systems, 2023
[ megvii-research/protoclip] [ ITRA codebase]

* Equal Contribution
Corresponding Authors

🎻

Delong was awarded a violin performance diploma from the Central Conservatory of Music (中央音乐学院).
He served as the concert master of the Hohai University Symphony Orchestra during 2019-2020. He is also at bilibili with 20k+ followers.