Tianchi Huang Research Scientist · Multimedia Networking · Adaptive Streaming Ph.D. Sony Group Corporation & Sony Interactive Entertainment Email mythkast@hotmail.com GitHub github.com/godka Scholar metrics

About Me

I am a research scientist at Sony Group Corporation (SGC) in Tokyo, with a concurrent role at Sony Interactive Entertainment (SIE). My work focuses on multimedia networked systems, with long-running interests in adaptive video streaming, real-time streaming, congestion control, and federated learning. I received my Ph.D. from the Department of Computer Science and Technology at Tsinghua University, where I was advised by Prof. Lifeng Sun.

Publications

Conference Papers

• HiVid: LLM-Guided Video Saliency For Content-Aware VOD And Live Streaming
  Jiahui Chen, Bo Peng, Lianchen Jia, Zeyu Zhang, Tianchi Huang, Lifeng Sun
  ICLR 2026.
  
• Crucible: Quantifying the Potential of Control Algorithms through Large Language Models
  Lianchen Jia, Chaoyang Li, Houde Qian, Tianchi Huang, Jiangchuan Liu, Lifeng Sun
  NeurIPS 2025.
  
• Beyond Interpretability: Exploring the Comprehensibility of Adaptive Video Streaming through Large Language Models
  Lianchen Jia, Chaoyang Li, Ziqi Yuan, Jiahui Chen, Tianchi Huang, Jiangchuan Liu, Lifeng Sun
  ACM Multimedia 2025.
  
• Progressive Learning with Human Feedback for Personalized Adaptive Video Streaming
  Zhaohui Jiang, Xuening Feng, Tianchi Huang, Ruixiao Zhang, Paul Weng, Yifei Zhu
  ACM Multimedia 2025.
  
• NeRFlow: Towards Adaptive Streaming for NeRF Videos
  Rui-Xiao Zhang, Tianchi Huang, Bo Chen, Klara Nahrstedt
  MobiSys 2025.
  
• Enhanced Bandwidth Measurement and Robust Rate Adaptation for Low-latency Live Streaming
  Jiahui Chen, Yiding Yu, Libo Wang, Ying Chen, Tianchi Huang, Lifeng Sun
  INFOCOM 2025.
  
• Meet challenges of RTT Jitter, A Hybrid Internet Congestion Control Algorithm
  Lianchen Jia, Chao Zhou, Tianchi Huang, Chaoyang Li, Lifeng Sun
  WWW 2024.
  
• Adversarial Attacks on Federated-Learned Adaptive Bitrate Algorithms
  Rui-Xiao Zhang*, Tianchi Huang*
  AAAI 2024.
  
• Dancing with Shackles, Meet the Challenge of Industrial Adaptive Streaming via Offline Reinforcement Learning
  Lianchen Jia, Chao Zhou, Tianchi Huang, Chaoyang Li, Lifeng Sun
  INFOCOM 2024.
  
• Optimizing Adaptive Video Streaming with Human Feedback
  Tianchi Huang*, Rui-Xiao Zhang*, Chenglei Wu, Lifeng Sun
  ACM Multimedia 2023.
  
• Concerto: Client-server Orchestration for Real-Time Video Analytics
  Chaoyang Li*, Ruixiao Zhang*, Tianchi Huang, Lianchen Jia, Lifeng Sun
  ACM Multimedia 2023.
  
• Buffer Awareness Neural Adaptive Video Streaming for Avoiding Extra Buffer Consumption
  Tianchi Huang, Chao Zhou, Rui-Xiao Zhang, Chenglei Wu, Lifeng Sun
  INFOCOM 2023.
  
• RDladder: Resolution-Duration Ladder for VBR-encoded Videos via Imitation Learning
  Lianchen Jia, Chao Zhou, Tianchi Huang, Chaoyang Li, Lifeng Sun
  INFOCOM 2023.
  
• Enhancing Video Analytics in Low-light Surroundings with Pre-and Post-processing
  Rui-Xiao Zhang, Chaoyang Li, Chenglei Wu, Tianchi Huang, Lifeng Sun
  INFOCOM 2023.
  
• Who is the Rising Star? Demystifying the Promising Streamers in Crowdsourced Live Streaming
  Rui-Xiao Zhang, Tianchi Huang, Chenglei Wu, Lifeng Sun
  INFOCOM 2023.
  
• Federated Knowledge Transfer for Heterogeneous Visual Models
  Wenzhe Li, Zirui Zhu, Tianchi Huang, Lifeng Sun
  ACM Multimedia Asia 2022. (Best Paper Honorable Mention)
  
• Learned Internet Congestion Control for Short Video Uploading
  Tianchi Huang, Chao Zhou, Lianchen Jia, Ruixiao Zhang, Lifeng Sun
  ACM Multimedia 2022.
  
• AggCast: Practical Cost-effective Scheduling for Large-scale Cloud-edge Crowdsourced Live Streaming
  Rui-Xiao Zhang, Changpeng Yang, Xiaochan Wang, Tianchi Huang, Chenglei Wu, Jiangchuan Liu, Lifeng Sun
  ACM Multimedia 2022.
  
• ZiXia: A Reinforcement Learning Approach via Adjusted Ranking Reward for Internet Congestion Control
  Lianchen Jia, Tianchi Huang, Lifeng Sun
  ICC 2022.
  
• Deadline and Priority-aware Congestion Control for Delay-sensitive Multimedia Streaming
  Chao Zhou, Wenjun Wu, Dan Yang, Tianchi Huang, Liang Guo, Bing Yu
  ACM Multimedia 2021 Grand Challenge.(1st Place)
  
• Deep Reinforced Bitrate Ladders for Adaptive Video Streaming
  Tianchi Huang, Rui-Xiao Zhang, Lifeng Sun
  NOSSDAV 2021.
  
• A Long-Short-Term Fusion Approach For Video Cache
  Rui-Xiao Zhang, Tianchi Huang, Lifeng Sun
  2020 IEEE Global Communications Conference (GLOBECOM 2020).
  
• Leveraging QoE Heterogenity for Large-Scale Livecast Scheduling
  Rui-Xiao Zhang, Ming Ma, Tianchi Huang, Hanyu Li, Jiangchuan Liu, Lifeng Sun
  ACM Multimedia 2020.
  
• Optimized Bitrate Ladders for Adaptive Video Streaming with Deep Reinforcement Learning
  Tianchi Huang, Lifeng Sun
  SIGCOMM 2020 Posters & Demos.
  
• DeepMPC: A Mixture ABR Approach via Deep Learning and MPC
  Tianchi Huang, Lifeng Sun
  ICIP 2020.
  
• Self-play Reinforcement Learning for Video Transmission
  Tianchi Huang, Rui-Xiao Zhang, Lifeng Sun
  NOSSDAV 2020.
  
• Stick: A Harmonious Fusion of Buffer-based and Learning-based Approach for Adaptive Streaming
  Tianchi Huang, Chao Zhou, Rui-Xiao Zhang, Xin Yao, Chenglei Wu, Lifeng Sun
  INFOCOM 2020.
  
• Federated Learning with Unbiased Gradient Aggregation and Controllable Meta Updating
  Xin Yao, Tianchi Huang, Rui-Xiao Zhang, Ruiyu Li, Lifeng Sun
  NeurIPS 2019 Workshop on Federated Learning for Data Privacy and Confidentiality (FL-NeurIPS 2019).
  
• Generalizing Rate Control Strategies for Real-time Video Streaming via Learning from Deep Learning
  Tianchi Huang, Rui-Xiao Zhang, Chenglei Wu, Xin Yao, Chao Zhou, Bing Yu, Lifeng Sun
  ACM Multimedia Asia 2019.
  
• Federated Learning with Additional Mechanisms on Clients to Reduce Communication Costs
  Xin Yao, Tianchi Huang, Chenglei Wu, Rui-xiao Zhang, Lifeng Sun
  arXiv Preprint.
  
• Comyco: Quality-aware Adaptive Video Streaming via Imitation Learning
  Tianchi Huang, Chao Zhou, Rui-Xiao Zhang, Xin Yao, Chenglei Wu, Lifeng Sun
  ACM Multimedia 2019.
  
• Livesmart: a QoS-Guaranteed Cost-minimum framework of viewer scheduling for Crowdsourced Live streaming
  Rui-Xiao Zhang, Ming Ma, Tianchi Huang, Haitian Pang, Xin Yao, Chenglei Wu, Jiangchuan Liu, Lifeng Sun
  ACM Multimedia 2019.
  
• Being More Effective and Interpretable: Bridging the Gap Between Heuristics and AI for ABR Algorithms
  Tianchi Huang, Rui-Xiao Zhang, Xin Yao, Chenglei Wu, Lifeng Sun
  SIGCOMM 2019 Posters & Demos.
  
• Reactive Video Caching via long-short-term fusion approach
  Rui-Xiao Zhang, Tianchi Huang, Chenglei Wu, Xin Yao, Lifeng Sun
  Conference version: A Long-Short-Term Fusion Approach For Video Cache (GLOBECOM'20).
  arXiv Preprint.
  
• Towards Faster and Better Federated Learning: A Feature Fusion Approach
  Xin Yao, Tianchi Huang, Chenglei Wu, Zhang, Lifeng Sun
  ICIP 2019.
  
• Enhancing the Crowdsourced Live Streaming: a Deep Reinforcement Learning Approach
  Rui-Xiao Zhang, Tianchi Huang, Ming Ma, Haitian Pang, Xin Yao, Chenglei Wu, Lifeng Sun
  NOSSDAV 2019. (Best Student Paper)
  
• Towards QoS-Aware Cloud Live Transcoding: A Deep Reinforcement Learning Approach
  Zhengyuan Pang, Lifeng Sun, Tianchi Huang, Zhi Wang, Shiqiang Yang
  ICME 2019.
  
• Tiyuntsong: A Self-Play Reinforcement Learning Approach for ABR Video Streaming
  Tianchi Huang, Xin Yao, Chenglei Wu, Rui-Xiao Zhang, Zhengyuan Pang, Lifeng Sun
  ICME 2019.
  Tiyuntsong (梯云纵): In memory of Jin Yong (1924-2018).
  
• QARC: Video Quality Aware Rate Control for Real-Time Video Streaming based on Deep Reinforcement Learning
  Tianchi Huang, Rui-Xiao Zhang, Chao Zhou, Lifeng Sun
  ACM Multimedia 2018.
  
• Delay-Constrained Rate Control for Real-Time Video Streaming with Bounded Neural Network
  Tianchi Huang, Rui-Xiao Zhang, Chao Zhou, Lifeng Sun
  NOSSDAV 2018.
  

Journal Articles

• MSADM: Large Language Model (LLM) Assisted End-to-End Network Health Management Based on Multi-Scale Semanticization
  Fengxiao Tang, Xiaonan Wang, Xun Yuan, Linfeng Luo, Ming Zhao, Tianchi Huang, Nei Kato
  IEEE Transactions on Mobile Computing.
  
• Towards Robust Low-Latency Live Streaming: Measurement, Prediction, and Rate Adaptation under Uncertainty
  Jiahui Chen, Yiding Yu, Libo Wang, Ying Chen, Tianchi Huang, Lifeng Sun
  IEEE Transactions on Mobile Computing.
  
• Reducing Traffic Wastage in Video Streaming via Bandwidth-Efficient Bitrate Adaptation
  Hairong Su, Shibo Wang, Shusen Yang, Tianchi Huang, Xuebin Ren
  IEEE Transactions on Mobile Computing.
  
• Practical Cloud-Edge Scheduling for Large-Scale Crowdsourced Live Streaming
  Rui-Xiao Zhang, Changpeng Yang, Xiaochan Wang, Tianchi Huang, Chenglei Wu, Jiangchuan Liu, Lifeng Sun
  IEEE Transactions on Parallel and Distributed Systems.
  
• A Data-free Distillation Framework for Adaptive Bitrate Algorithms (In Chinese)
  Tianchi Huang, Chaoyang Li, Rui-Xiao Zhang, Wenzhe Li, Lifeng Sun
  Journal of Computer Science and Technology.
  NIA: In memory of my lovely daughter, my precious pet, Nia (2012-2025).
  
• Learning Tailored Adaptive Bitrate Algorithms to Heterogeneous Network Conditions: a Domain-Specific Priors and Meta-Reinforcement Learning Approach
  Tianchi Huang, Chao Zhou, Rui-Xiao Zhang, Chenglei Wu, Lifeng Sun
  IEEE Journal on Selected Areas in Communications (JSAC).
  
• Zwei: A self-play Reinforcement Learning Framework for Video Transmission Services
  Tianchi Huang, Rui-Xiao Zhang, Lifeng Sun
  IEEE Transactions on Multimedia (TMM).
  
• A Practical Learning-based Approach for Viewer Scheduling in the Crowdsourced Live Streaming
  Rui-Xiao Zhang, Tianchi Huang, Ming Ma, Haitian Pang, Xin Yao, Chenglei Wu, Lifeng Sun
  ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM).
  
• Quality-aware Neural Adaptive Video Streaming with Lifelong Imitation Learning
  Tianchi Huang, Chao Zhou, Xin Yao, Rui-Xiao Zhang, Chenglei Wu, Bing Yu, Lifeng Sun
  IEEE Journal on Selected Areas in Communications (JSAC).
  
• Adversarial Feature Alignment: Avoid Catastrophic Forgetting in Incremental Task Lifelong Learning
  Xin Yao, Tianchi Huang, Chenglei Wu, Ruixiao Zhang, Lifeng Sun
  Neural Computation.
  

Awards

Teaching

Community Services