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This paper describes a novel system that provides key parameters of HTTP Adaptive Streaming (HAS) sessions to the lower layers of the protocol stack. A non-intrusive traffic profiling solution is proposed that observes packet flows at the…

Multimedia · Computer Science 2017-05-25 Dimitrios Tsilimantos , Theodoros Karagkioules , Amaya Nogales-Gómez , Stefan Valentin

The Structural Similarity (SSIM) Index is a very widely used image/video quality model that continues to play an important role in the perceptual evaluation of compression algorithms, encoding recipes and numerous other image/video…

Image and Video Processing · Electrical Eng. & Systems 2021-02-12 Abhinau K. Venkataramanan , Chengyang Wu , Alan C. Bovik , Ioannis Katsavounidis , Zafar Shahid

Learning-based Adaptive Bit Rate~(ABR) method, aiming to learn outstanding strategies without any presumptions, has become one of the research hotspots for adaptive streaming. However, it typically suffers from several issues, i.e., low…

Multimedia · Computer Science 2019-12-24 Tianchi Huang , Chao Zhou , Rui-Xiao Zhang , Chenglei Wu , Xin Yao , Lifeng Sun

We propose the Multi-Head Density Adaptive Attention Mechanism (DAAM), a novel probabilistic attention framework that can be used for Parameter-Efficient Fine-tuning (PEFT), and the Density Adaptive Transformer (DAT), designed to enhance…

Machine Learning · Computer Science 2024-10-01 Georgios Ioannides , Aman Chadha , Aaron Elkins

We consider the problem of estimating a linear time-invariant (LTI) dynamical system from a single trajectory via streaming algorithms, which is encountered in several applications including reinforcement learning (RL) and time-series…

Machine Learning · Computer Science 2021-12-03 Prateek Jain , Suhas S Kowshik , Dheeraj Nagaraj , Praneeth Netrapalli

Traditional per-title encoding schemes aim to optimize encoding resolutions to deliver the highest perceptual quality for each representation. XPSNR is observed to correlate better with the subjective quality of VVC-coded bitstreams.…

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

Stacked intelligent metasurfaces (SIM) are capable of emulating reconfigurable physical neural networks by relying on electromagnetic (EM) waves as carriers. They can also perform various complex computational and signal processing tasks. A…

Information Theory · Computer Science 2024-02-14 Jiancheng An , Chau Yuen , Yong Liang Guan , Marco Di Renzo , Mérouane Debbah , H. Vincent Poor , Lajos Hanzo

This work focuses on quality adaptation as a means to counter the effects of channel degradation in wireless, cache-aided channels. We design a delivery scheme which combines coded caching, superposition coding, and scalable source coding,…

Information Theory · Computer Science 2024-03-05 Eleftherios Lampiris , Giuseppe Caire

In online learning from non-stationary data streams, it is necessary to learn robustly to outliers and to adapt quickly to changes in the underlying data generating mechanism. In this paper, we refer to the former attribute of online…

Machine Learning · Statistics 2021-09-29 Shintaro Fukushima , Atsushi Nitanda , Kenji Yamanishi

In many real-world scenarios, distribution shifts exist in the streaming data across time steps. Many complex sequential data can be effectively divided into distinct regimes that exhibit persistent dynamics. Discovering the shifted…

Machine Learning · Computer Science 2023-09-07 Weijieying Ren , Tianxiang Zhao , Wei Qin , Kunpeng Liu

360-degree video provides an immersive 360-degree viewing experience and has been widely used in many areas. The 360-degree video live streaming systems involve capturing, compression, uplink (camera to video server) and downlink (video…

Multimedia · Computer Science 2020-01-13 Jie Li , Ransheng Feng , Zhi Liu , Wei Sun , Qiyue Li

The QUIC transport protocol represents a significant evolution in web transport technologies, offering improved performance and reduced latency compared to traditional protocols like TCP. Given the growing number of QUIC implementations,…

Networking and Internet Architecture · Computer Science 2026-02-11 Jashanjot Singh Sidhu , Abdelhak Bentaleb

Recent advancements in 3D Gaussian Splatting (3DGS) have enabled photorealistic rendering of complex scenes, yet widespread adoption on mobile and Extended Reality (XR) devices is hindered by substantial computational and bandwidth…

Image and Video Processing · Electrical Eng. & Systems 2026-05-12 Emanuele Artioli , Philipp Fößl , Daniele Lorenzi , Farzad Tashtarian , Mahdi Dolati , Cheng-Hsin Hsu , Christian Timmerer

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

Volumetric video streaming offers immersive 3D experiences but faces significant challenges due to high bandwidth requirements and latency issues in transmitting detailed content in real time. Traditional methods like point cloud streaming…

Computer Vision and Pattern Recognition · Computer Science 2024-09-26 Boyan Li , Yongting Chen , Dayou Zhang , Fangxin Wang

We consider a multi-user video streaming service optimization problem over a time-varying and mutually interfering multi-cell wireless network. The key research challenge is to appropriately adapt each user's video streaming rate according…

Multimedia · Computer Science 2019-02-05 Kexin Tang , Nuowen Kan , Junni Zou , Xiao Fu , Mingyi Hong , Hongkai Xiong

Recognizing the surrounding environment at low latency is critical in autonomous driving. In real-time environment, surrounding environment changes when processing is over. Current detection models are incapable of dealing with changes in…

Computer Vision and Pattern Recognition · Computer Science 2022-12-26 Wonwoo Jo , Kyungshin Lee , Jaewon Baik , Sangsun Lee , Dongho Choi , Hyunkyoo Park

Thanks to the abundance of Web platforms and broadband connections, HTTP Adaptive Streaming has become the de facto choice for multimedia delivery nowadays. However, the visual quality of adaptive video streaming may fluctuate strongly…

Multimedia · Computer Science 2020-02-26 Huyen T. T. Tran , Nam Pham Ngoc , Tobias Hoßfeld , Michael Seufert , Truong Cong Thang

Online Streaming Feature Selection (OSFS) is a sequential learning problem where individual features across all samples are made available to algorithms in a streaming fashion. In this work, firstly, we assert that OSFS's main assumption of…

Machine Learning · Computer Science 2020-03-17 Salimeh Yasaei Sekeh , Madan Ravi Ganesh , Shurjo Banerjee , Jason J. Corso , Alfred O. Hero