About
I am an incoming Ph.D. student in Machine Learning at Mohamed bin Zayed University of Artificial Intelligence (MBZUAI). My research centers on data mining, multimodal large language models, and representation learning, with a focus on how models extract, organize, and use signals from user behavior, multimodal content, and large-scale interaction data.
I am especially interested in building representations that remain useful beyond clean benchmark settings. For example, in recommender systems and value prediction, the hardest problems often come from noisy modalities, delayed feedback, shifting user cohorts, and rare but important high-value cases. My goal is to connect representation-level understanding with decision-facing AI systems: models should not only predict well, but also support reliable reasoning, adaptation, and intervention in realistic environments.
Before starting my Ph.D., I studied Artificial Intelligence at Lanzhou University and worked across academic and industrial research settings, including Alibaba Group, MBZUAI, University College Dublin, Westlake University, and UNC Chapel Hill. These experiences shaped my interest in methods that are technically grounded, empirically useful, and aware of the gap between model behavior and real-world deployment.
Research
Accepted and published research papers.
Multi-Adapter Representation Interventions via Energy Calibration
Manjiang Yu, Hongji Li, Junwei Chen, Xue Li, Priyanka Singh, Yang Cao, Lijie Hu
Proceedings of the Forty-third International Conference on Machine Learning (ICML) 2026
Accepted at ICML 2026. This work studies representation interventions through energy calibration for controllable large-model behavior.
Towards Reasoning-Preserving Unlearning in Multimodal Large Language Models
Hongji Li, Manjiang Yu, Junchi Yao, Priyanka Singh, Xue Li, Di Wang, Lijie Hu
Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) 2026
Accepted at CVPR 2026. This work studies multimodal large-language-model unlearning while preserving useful reasoning ability.
Distill Any Depth: Distillation Creates a Stronger Monocular Depth Estimator
Xiankang He, Dongyan Guo, Hongji Li, Ruibo Li, Ying Cui, Chi Zhang
Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) 2026
Accepted at CVPR 2026. This work focuses on distillation for stronger monocular depth estimation.
PIXEL: Adaptive Steering via Position-wise Injection with eXact Estimated Levels under Subspace Calibration
Manjiang Yu, Hongji Li, Priyanka Singh, Xue Li, Di Wang, Lijie Hu
Proceedings of the ACM Web Conference (WWW) 2026
Accepted at WWW 2026. This work studies adaptive steering with position-wise injection and subspace calibration.
Frequency-Decoupled Distillation for Efficient Multimodal Recommendation
Ziyi Zhuang, Hongji Li, Junchen Fu, Mengmeng Chen, Joemon Jose, Youhua Li, Yongxin Ni
Proceedings of the ACM International Conference on Information and Knowledge Management (CIKM) 2025
Accepted at CIKM 2025. This work studies efficient multimodal recommendation through frequency-decoupled distillation.
Teach Me How to Denoise: A Universal Framework for Denoising Multi-modal Recommender Systems via Guided Calibration
Hongji Li, Hanwen Du, Youhua Li, Junchen Fu, Ziyi Zhuang, Chunxiao Li, Jiakang Li, Yongxin Ni
Proceedings of the ACM International Conference on Web Search and Data Mining (WSDM) 2025
Accepted at WSDM 2025. This work proposes guided calibration for denoising multimodal recommender systems.
Experience
Selected research and engineering experience.
Algorithm Engineering Intern
May 2025 - PresentAlibaba Group
Working on generative LTV prediction and confirmed GMV forecasting, with emphasis on production-facing value prediction and decision-oriented modeling.
Remote Research
Jun 2025 - PresentMohamed bin Zayed University of Artificial Intelligence · Advisor: Dr. Lijie Hu
Research on LLM alignment, privacy safety, and explainable AI. The work connects representation-level behavior with safer and more interpretable model control.
Visiting Student
Dec 2023 - Feb 2025University College Dublin · Advisor: Dr. Ruihai Dong
Worked on explainable recommendation algorithms and their industrial implementation, connecting recommender-system methods with practical deployment constraints.
Visiting Student
May 2023 - Nov 2023AGI Lab, Westlake University · Advisor: Dr. Chi Zhang
Worked on monocular depth estimation and AI-generated content, focusing on visual perception and generative AI problems.
Remote Research
Jun 2022 - Sep 2022University of North Carolina at Chapel Hill · Advisor: Dr. Edward Gehringer
Explored how artificial intelligence can enhance student learning in online platforms.