arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1811.06166cs.MM
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Tiyuntsong:一种面向ABR视频流的自学习强化学习方法

Tiyuntsong: A Self-Play Reinforcement Learning Approach for ABR Video Streaming

Tianchi Huang, Xin Yao, Chenglei Wu, Rui-Xiao Zhang, Zhangyuan Pang, Lifeng Sun

摘要:

现有的基于强化学习的自适应比特率ABR方法通过提高体验质量(QoE)得分而优于之前基于固定控制规则的方法,因为QoE度量很难为优化提供明确的指导,最终导致意外的策略。在本文中,我们提出了\emph{Tiyuntsong},一个自我发挥的强化学习方法与生成对抗网络~(GAN)为基础的方法ABR视频流。Tiyuntsong通过训练两个相互竞争的智能体来自动学习策略。注意,竞争结果由一组规则而不是允许更清晰的优化目标的数值QoE分数确定。同时,我们提出了GAN增强模块,从过去的状态中提取隐藏的特征,以保留信息,而不受序列长度的限制。使用测试床实验,我们表明,利用GAN显着提高Tiyuntsong的性能。通过比较ABR的性能,我们观察到Tiyuntsong在底层指标上也优于现有的ABR算法。

英文摘要:

Existing reinforcement learning~(RL)-based adaptive bitrate~(ABR) approaches outperform the previous fixed control rules based methods by improving the Quality of Experience~(QoE) score, as the QoE metric can hardly provide clear guidance for optimization, finally resulting in the unexpected strategies. In this paper, we propose \emph{Tiyuntsong}, a self-play reinforcement learning approach with generative adversarial network~(GAN)-based method for ABR video streaming. Tiyuntsong learns strategies automatically by training two agents who are competing against each other. Note that the competition results are determined by a set of rules rather than a numerical QoE score that allows clearer optimization objectives. Meanwhile, we propose GAN Enhancement Module to extract hidden features from the past status for preserving the information without the limitations of sequence lengths. Using testbed experiments, we show that the utilization of GAN significantly improves the Tiyuntsong's performance. By comparing the performance of ABRs, we observe that Tiyuntsong also betters existing ABR algorithms in the underlying metrics.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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