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This paper studies fast adaptive beamforming optimization for the signal-to-interference-plus-noise ratio balancing problem in a multiuser multiple-input single-output downlink system. Existing deep learning based approaches to predict…

Information Theory · Computer Science 2020-11-03 Yi Yuan , Gan Zheng , Kai-Kit Wong , Björn Ottersten , Zhi-Quan Luo

With the inevitable dominance of video traffic on the Internet, providing perceptually good video quality is becoming a challenging task. This is partly due to the bursty nature of video traffic, changing network conditions and limitations…

Networking and Internet Architecture · Computer Science 2020-08-18 Qahhar Muhammad Qadir , Alexander A. Kist , Zhongwei Zhang

Width-based planning has shown promising results on Atari 2600 games using pixel input, while using substantially fewer environment interactions than reinforcement learning. Recent width-based approaches have computed feature vectors for…

Artificial Intelligence · Computer Science 2022-03-22 Benjamin Ayton , Masataro Asai

Quality of Experience~(QoE)-driven adaptive bitrate (ABR) algorithms are typically optimized using QoE models that are based on the mean opinion score~(MOS), while such principles may not account for user heterogeneity on rating scales,…

Multimedia · Computer Science 2023-08-11 Tianchi Huang , Rui-Xiao Zhang , Chenglei Wu , Lifeng Sun

Offline reinforcement learning (RL) enables training from fixed data without online interaction, but policies learned offline often struggle when deployed in dynamic environments due to distributional shift and unreliable value estimates on…

Machine Learning · Computer Science 2025-11-06 Lipeng Zu , Hansong Zhou , Xiaonan Zhang

Although the many efforts to apply deep reinforcement learning to query optimization in recent years, there remains room for improvement as query optimizers are complex entities that require hand-designed tuning of workloads and datasets.…

Databases · Computer Science 2023-06-05 Yuri Kim , Yewon Choi , Yujung Gil , Sanghee Lee , Heesik Shin , Jaehyok Chong

The emergence of video applications and video capable devices have contributed substantially to the increase of video traffic on Internet. New mechanisms recommending video rate adaptation towards delivering enhanced Quality of Experience…

Networking and Internet Architecture · Computer Science 2020-08-25 Safeen Qadir , Alexander A. Kist , Zhongwei Zhang

The quality of experience (QoE) delivered by video conferencing systems to end users depends in part on correctly estimating the capacity of the bottleneck link between the sender and the receiver over time. Bandwidth estimation for…

Networking and Internet Architecture · Computer Science 2024-03-19 Sami Khairy , Gabriel Mittag , Vishak Gopal , Francis Y. Yan , Zhixiong Niu , Ezra Ameri , Scott Inglis , Mehrsa Golestaneh , Ross Cutler

Deep reinforcement learning (DRL) demonstrates its promising potential in the realm of adaptive video streaming and has recently received increasing attention. However, existing DRL-based methods for adaptive video streaming use only…

Multimedia · Computer Science 2025-01-03 Lingzhi Zhao , Ying Cui , Yuhang Jia , Yunfei Zhang , Klara Nahrstedt

In the rapidly advancing field of deep learning, optimising deep neural networks is paramount. This paper introduces a novel method, Enhanced Velocity Estimation (EVE), which innovatively applies different learning rates to distinct…

Machine Learning · Computer Science 2023-08-22 Afshin Khadangi

Deep neural network quantization with adaptive bitwidths has gained increasing attention due to the ease of model deployment on various platforms with different resource budgets. In this paper, we propose a meta-learning approach to achieve…

Machine Learning · Computer Science 2022-07-22 Jiseok Youn , Jaehun Song , Hyung-Sin Kim , Saewoong Bahk

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

The emerging video applications greatly increase the demand in network bandwidth that is not easy to scale. To provide higher quality of experience (QoE) under limited bandwidth, a recent trend is to leverage the heterogeneity of quality…

Networking and Internet Architecture · Computer Science 2022-11-30 Xu Zhang , Paul Schmitt , Marshini Chetty , Nick Feamster , Junchen Jiang

The predominant use of wireless access networks is for media streaming applications, which are only gaining popularity as ever more devices become available for this purpose. However, current access networks treat all packets identically,…

In order to increase the effectiveness of model training, data reduction is essential to data-centric Artificial Intelligence (AI). It achieves this by locating the most instructive examples in massive datasets. To increase data quality and…

Machine Learning · Computer Science 2025-08-11 Fei Chen , Wenchi Zhou

Measuring Quality of Experience (QoE) and integrating these measurements into video streaming algorithms is a multi-faceted problem that fundamentally requires the design of comprehensive subjective QoE databases and metrics. To achieve…

Image and Video Processing · Electrical Eng. & Systems 2018-08-14 Christos G. Bampis , Zhi Li , Ioannis Katsavounidis , Te-Yuan Huang , Chaitanya Ekanadham , Alan C. Bovik

We propose the width-resolution mutual learning method (MutualNet) to train a network that is executable at dynamic resource constraints to achieve adaptive accuracy-efficiency trade-offs at runtime. Our method trains a cohort of…

Computer Vision and Pattern Recognition · Computer Science 2020-03-25 Taojiannan Yang , Sijie Zhu , Chen Chen , Shen Yan , Mi Zhang , Andrew Willis

Value function estimation is an indispensable subroutine in reinforcement learning, which becomes more challenging in the offline setting. In this paper, we propose Hybrid Value Estimation (HVE) to reduce value estimation error, which…

Machine Learning · Computer Science 2022-06-07 Xue-Kun Jin , Xu-Hui Liu , Shengyi Jiang , Yang Yu

This article proposes a novel framework that utilizes an over-the-air Brain-Computer Interface (BCI) to learn Metaverse users' expectations. By interpreting users' brain activities, our framework can optimize physical resources and enhance…

Human-Computer Interaction · Computer Science 2024-10-10 Nguyen Quang Hieu , Dinh Thai Hoang , Diep N. Nguyen , Van-Dinh Nguyen , Yong Xiao , Eryk Dutkiewicz

Video analytics applications use edge compute servers for the analytics of the videos (for bandwidth and privacy). Compressed models that are deployed on the edge servers for inference suffer from data drift, where the live video data…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-12-22 Romil Bhardwaj , Zhengxu Xia , Ganesh Ananthanarayanan , Junchen Jiang , Nikolaos Karianakis , Yuanchao Shu , Kevin Hsieh , Victor Bahl , Ion Stoica