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Kuaishou Tech
Kuaishou Tech
Sep 4, 2025 · Fundamentals

How LingXi Achieves User‑Level QoE Optimization in Large‑Scale Adaptive Video Streaming

The paper “Towards User‑level QoE: Large‑scale Personalized Optimization of Adaptive Video Streaming” introduces LingXi, the first production‑grade system that deploys per‑user Bayesian optimization and Monte‑Carlo simulation to reduce video stalls and boost both QoE and QoS across millions of viewers, with especially strong gains for low‑bandwidth users.

Monte Carlo simulationQoE optimizationadaptive streaming
0 likes · 15 min read
How LingXi Achieves User‑Level QoE Optimization in Large‑Scale Adaptive Video Streaming
Kuaishou Audio & Video Technology
Kuaishou Audio & Video Technology
Sep 4, 2025 · Fundamentals

How LingXi Revolutionizes User‑Level QoE with Scalable Adaptive Video Streaming

A joint Kuaishou‑Tsinghua study presented at ACM SIGCOMM 2025 introduces LingXi, the first large‑scale production system that personalizes adaptive video streaming by targeting stall events, using online Bayesian optimization, Monte Carlo simulation, and a hybrid exit‑rate predictor to achieve significant QoE and QoS gains across millions of users.

Monte Carlo simulationQoE optimizationSIGCOMM 2025
0 likes · 14 min read
How LingXi Revolutionizes User‑Level QoE with Scalable Adaptive Video Streaming
Bilibili Tech
Bilibili Tech
Aug 16, 2022 · Artificial Intelligence

Bilibili's Intelligent Adaptive Bitrate Algorithm: From Theory to Practice

Bilibili enhanced mobile video streaming by replacing standard ABR methods with an intelligent adaptive bitrate system that uses a real‑time QoE model, refined network‑speed preprocessing, long‑term feature analysis, decision‑tree‑based neural models, and personalized user modes to balance resolution, buffering, and data usage.

BilibiliPensieve algorithmQoE optimization
0 likes · 12 min read
Bilibili's Intelligent Adaptive Bitrate Algorithm: From Theory to Practice