Introduction
I joined Amazon as an Applied Scientist in July 2026. Previously, I worked at Meta Platforms, Inc. from July 2025 to June 2026. I received my Ph.D. in Computer Science in 2026 and my B.S. in Computer Science in 2021.
I have worked on systems research for several years. During my Ph.D., I published 25 papers in systems venues, including 15 papers at top conferences as defined by CSRankings. Among them, 14 are first-author papers, including 8 at top conferences. I spent the final year of my Ph.D. at Meta, where I published four papers, including two at top-tier conferences, and contributed to internal product improvements driven by my research efforts. As of August 2026, my publications have received 981 citations, including 864 citations to my first-author work.
My experience in both academia and industry has convinced me that many of the most important challenges emerge only when systems operate at massive scale. I am therefore focused on translating research insights into real-world product impact by addressing bottlenecks in large-scale AI systems deployed globally. As publications are no longer a primary focus of my career, this website will be updated less frequently.
Selected Publications
For a complete list of my publications, please visit my Google Scholar and DBLP profiles.
Ruizhi Cheng, Harshvardhan Takawale, Nan Wu, Nirupam Roy, Sennur Ulukus, Matteo Varvello, Bo Han. "LITE: Loss-resilient Immersive Telepresence with Multi-modal Semantics"
Ruizhi Cheng, Guowu Xie, Bo Han. "Can You See Me, GenAI? Characterizing Video-Based Conversational Interaction with Generative AI"
Ruizhi Cheng, Guowu Xie, Matteo Varvello, Songqing Chen, Bo Han. "Hello, GenAI? Dissecting Human to Generative AI Calling"
Ruizhi Cheng, Nan Wu, Vu Le, Matteo Varvello, Bo Han. "MagicStream: Bandwidth-conserving Immersive Telepresence via Semantic Communication" [Best Paper Runner-up]
Ruizhi Cheng, Yuetong Wu, Ashish Kundu, Hugo Latapie, Myungjin Lee, Songqing Chen, Bo Han. "MetaFL: Privacy-preserving User Authentication in Virtual Reality with Federated Learning"
Ruizhi Cheng*, Nan Wu*, Matteo Varvello, Songqing Chen, Bo Han. "A First Look at Immersive Telepresence on Apple Vision Pro"
*: Equal contribution.
Ruizhi Cheng, Erdem Murat, Lap-Fei Yu, Songqing Chen, Bo Han. "Understanding Online Education in Metaverse: Systems and User Experience Perspectives"
Ruizhi Cheng, Nan Wu, Matteo Varvello, Songqing Chen, Bo Han. "Are We Ready for Metaverse? A Measurement Study of Social Virtual Reality Platforms"
Professional Services
Technical Program Committee
ACM ImmerCom
Selected Review Experience
IEEE/ACM Transactions on Networking (ToN), ACM Transactions on Graphics (ToG), IEEE Internet of Things Journal (IoT-J)
ACM UbiComp, IEEE VR