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Cocktail Edge Caching: Ride Dynamic Trends of Content Popularity With Ensemble Learning
Tongyu Zong;Chen Li;Yuanyuan Lei;Guangyu Li;Houwei Cao;Yong Liu
Edge caching will play a critical role in facilitating the emerging content-rich applications. However, it faces many new challenges, in particular, the highly dynamic content popularity and the heterogeneous caching configurations. In this paper, we propose Cocktail Edge Caching, that tackles the dynamic popularity and heterogeneity through ensemble learning. Instead of trying to find a single do...Show More
Streaming of live 360-degree video allows users to follow a live event from any view point and has already been deployed on some commercial platforms. However, the current systems can only stream the video at relatively low-quality because the entire 360-degree video is delivered to the users under limited bandwidth. Streaming video falling into user field of view (FoV) can improve bandwidth effic...Show More
Reinforced iLQR: A Sample-Efficient Robot Locomotion Learning
2021 IEEE International Conference on Robotics and Automation (ICRA)
Year: 2021 | Conference Paper |
Cited by: Papers (9)
Robot locomotion is a major challenge in robotics. Model-based approaches are vulnerable to model errors, and incur high computation overhead resulted from long control horizon. Model-free approaches are trained with a large number of training samples, which are expensive to obtain. In this paper, we develop a hybrid control and learning framework, called Reinforced iLQR (RiLQR), which combines th...Show More
Cocktail Edge Caching: Ride Dynamic Trends of Content Popularity with Ensemble Learning
Tongyu Zong;Chen Li;Yuanyuan Lei;Guangyu Li;Houwei Cao;Yong Liu
IEEE INFOCOM 2021 - IEEE Conference on Computer Communications
Year: 2021 | Conference Paper |
Cited by: Papers (14)
Edge caching will play a critical role in facilitating the emerging content-rich applications. However, it faces many new challenges, in particular, the highly dynamic content popularity and the heterogeneous caching configurations. In this paper, we propose Cocktail Edge Caching, that tackles the dynamic popularity and heterogeneity through ensemble learning. Instead of trying to find a single do...Show More
Towards Optimal Low-Latency Live Video Streaming
Low-latency is a critical user Quality-of-Experience (QoE) metric for live video streaming. It poses significant challenges for streaming over the Internet. In this paper, we explore the design space of low-latency live streaming by developing dynamic models and optimal adaptation strategies to establish QoE upper bounds as a function of the allowable end-to-end latency. We further develop practic...Show More
Optimal Strategies for Live Video Streaming in the Low-latency Regime
2019 IEEE 27th International Conference on Network Protocols (ICNP)
Year: 2019 | Conference Paper |
Cited by: Papers (13)
Low-latency is a critical user Quality-of-Experience (QoE) metric for live video streaming. It poses significant challenges for streaming over the Internet. In this paper, we explore the design space of low-latency live video streaming by developing dynamic models and optimal control strategies. We further develop practical live video streaming algorithms within the Model Predictive Control (MPC) ...Show More
Panoramic video delivery based on Laplace compensation and Sphere-Markov probability model
Tongyu Zong;Zhengzhong Tu;Li Ai;Xueliang Xi;Yize Jin;Xiaoyang Zeng;Yibo Fan
2018 IEEE International Conference on Consumer Electronics (ICCE)
Year: 2018 | Conference Paper |
Virtual Reality (VR) is on the rise nowadays. To save bandwidth and ensure high quality at the same time, only the tiles within field of view (FOV) of the user should be transmitted in high quality while other tiles in low quality or even not transmitted. However, if a user's viewpoint moves fast while watching a panoramic video, low-quality content will always appear in the FOV because of the rou...Show More
Content adaptive tiling method based on user access preference for streaming panoramic video
Zhengzhong Tu;Tongyu Zong;Xueliang Xi;Li Ai;Yize Jin;Xiaoyang Zeng;Yibo Fan
2018 IEEE International Conference on Consumer Electronics (ICCE)
Year: 2018 | Conference Paper |
Cited by: Papers (6)
Tiled streaming has been proposed for delivering ultra-high resolution videos such as zoomable online lectures or panoramas. In tiled streaming, the source video is first partitioned into grid of small rectangular tile groups. Each tile group is independently encoded and compressed. When an user asks for a certain viewport at a time, the server only streams the viewed tiles to save up bandwidth. H...Show More
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