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Over the recent years, research and development in adaptive bitrate (ABR) algorithms for live video streaming have been successful in improving users' quality of experience (QoE) by reducing latency to near real-time levels while delivering…

Multimedia · Computer Science 2024-02-15 Adithya Raman , Bekir Turkkan , Tevfik Kosar

Effective Adaptive BitRate (ABR) algorithm or policy is of paramount importance for Real-Time Video Communication (RTVC) amid this pandemic to pursue uncompromised quality of experience (QoE). Existing ABR methods mainly separate the…

Multimedia · Computer Science 2023-12-04 Yueheng Li , Hao Chen , Bowei Xu , Zicheng Zhang , Zhan Ma

HTTP Adaptive Streaming (HAS) is nowadays a popular solution for multimedia delivery. The novelty of HAS lies in the possibility of continuously adapting the streaming session to current network conditions, facilitated by Adaptive Bitrate…

Multimedia · Computer Science 2023-02-02 Babak Taraghi , Selina Zoë Haack , Christian Timmerer

Adaptive video streaming plays a crucial role in ensuring high-quality video streaming services. Despite extensive research efforts devoted to Adaptive BitRate (ABR) techniques, the current reinforcement learning (RL)-based ABR algorithms…

Image and Video Processing · Electrical Eng. & Systems 2024-05-08 Shuoyao Wang , Jiawei Lin , Fangwei Ye

Offline reinforcement learning (RL) defines a sample-efficient learning paradigm, where a policy is learned from static and previously collected datasets without additional interaction with the environment. The major obstacle to offline RL…

Machine Learning · Computer Science 2022-11-16 Yunfan Zhou , Xijun Li , Qingyu Qu

User-space Adaptive Bitrate (ABR) algorithms cannot see the transport layer signals that matter most, such as minimum RTT and instantaneous delivery rate, and they respond to network changes only after damage has already propagated to the…

Networking and Internet Architecture · Computer Science 2026-04-16 Mahdi Alizadeh

Live streaming has experienced significant growth recently. Yet this rise in popularity contrasts with the reality that a substantial segment of the global population still lacks Internet access. The emergence of Low Earth orbit Satellite…

Multimedia · Computer Science 2025-08-20 Hao Fang , Haoyuan Zhao , Jianxin Shi , Miao Zhang , Guanzhen Wu , Yi Ching Chou , Feng Wang , Jiangchuan Liu

While the rollout of the fifth-generation mobile network (5G) is underway across the globe with the intention to deliver 4K/8K UHD videos, Augmented Reality (AR), and Virtual Reality (VR) content to the mass amounts of users, the coverage…

Networking and Internet Architecture · Computer Science 2023-01-02 Kasidis Arunruangsirilert , Bo Wei , Hang Song , Jiro Katto

In today's Internet, HTTP Adaptive Streaming (HAS) is the mainstream standard for video streaming, which switches the bitrate of the video content based on an Adaptive BitRate (ABR) algorithm. An effective Quality of Experience (QoE)…

Image and Video Processing · Electrical Eng. & Systems 2023-03-20 Chunyi Li , May Lim , Abdelhak Bentaleb , Roger Zimmermann

HTTP-based video streaming is a key application on the Internet today, comprising the majority of Internet traffic today. Yet customers remain dissatisfied with video quality, resulting in lost revenue for content providers. Recent studies…

Networking and Internet Architecture · Computer Science 2019-01-03 Matvey Arye , Siddhartha Sen , Michael J. Freedman

Adaptive bitrate (ABR) using conventional codecs cannot further modify the bitrate once a decision has been made, exhibiting limited adaptation capability. This may result in either overly conservative or overly aggressive bitrate…

Image and Video Processing · Electrical Eng. & Systems 2024-06-06 Mufan Liu , Le Yang , Yiling Xu , Ye-kui Wang , Jenq-Neng Hwang

Bitrate adaptation (also known as ABR) is a crucial technique to improve the quality of experience (QoE) for video streaming applications. However, existing ABR algorithms suffer from severe traffic wastage, which refers to the traffic cost…

Networking and Internet Architecture · Computer Science 2024-12-11 Hairong Su , Shibo Wang , Shusen Yang , Tianchi Huang , Xuebin Ren

Nowadays Dynamic Adaptive Streaming over HTTP (DASH) is the most prevalent solution on the Internet for multimedia streaming and responsible for the majority of global traffic. DASH uses adaptive bit rate (ABR) algorithms, which select the…

Networking and Internet Architecture · Computer Science 2018-09-28 Pablo Gil Pereira , Andreas Schmidt , Thorsten Herfet

Recently, HTTP streaming has become very popular for delivering video over the Internet. For adaptivity, a provider should generate multiple versions of a video as well as the related metadata. Various adaptation methods have been proposed…

Multimedia · Computer Science 2015-11-10 Hung. T Le , Hai N. Nguyen , Nam Pham Ngoc , Anh T. Pham , Truong Cong Thang

Over the last few years, 360{\deg} video traffic on the network has grown significantly. A key challenge of 360{\deg} video playback is ensuring a high quality of experience (QoE) with limited network bandwidth. Currently, most studies…

Multimedia · Computer Science 2024-05-21 Haopeng Wang , Zijian Long , Haiwei Dong , Abdulmotaleb El Saddik

Video understanding plays a fundamental role for content moderation on short video platforms, enabling the detection of inappropriate content. While classification remains the dominant approach for content moderation, it often struggles in…

Information Retrieval · Computer Science 2025-07-03 Hanzhong Liang , Jinghao Shi , Xiang Shen , Zixuan Wang , Vera Wen , Ardalan Mehrani , Zhiqian Chen , Yifan Wu , Zhixin Zhang

Neural network training is commonly accelerated by using multiple synchronized workers to compute gradient updates in parallel. Asynchronous methods remove synchronization overheads and improve hardware utilization at the cost of…

Machine Learning · Computer Science 2020-07-13 Abhinav Venigalla , Atli Kosson , Vitaliy Chiley , Urs Köster

Artificial neural network training with stochastic gradient descent can be destabilized by "bad batches" with high losses. This is often problematic for training with small batch sizes, high order loss functions or unstably high learning…

Machine Learning · Computer Science 2020-05-21 Jeffrey M. Ede , Richard Beanland

In today's Internet, video is the most dominant application and in addition to this, wireless networks such as WiFi, Cellular, and Bluetooth have become ubiquitous. Hence, most of the Internet traffic is video over wireless nodes. There is…

Networking and Internet Architecture · Computer Science 2020-08-04 Kamran Nishat , Omprakash Gnawali , Ahmed Abdelhadi

In the tile-based 360-degree video streaming, predicting user's future viewpoints and developing adaptive bitrate (ABR) algorithms are essential for optimizing user's quality of experience (QoE). Traditional single-user based viewpoint…

Multimedia · Computer Science 2020-09-30 Jun Fu , Zhibo Chen , Xiaoming Chen , Weiping Li