Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video最新文献

Session details: Social networking 会话细节:社交网络

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/3251932

Wei Tsang Ooi

引用次数: 0

Session details: Peer-to-peer streaming 会话详细信息:点对点流

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/3251937

Guo Yang

引用次数: 0

Quality-adaptive scheduling for live streaming over multiple access networks 多址网络直播流的质量自适应调度

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/1806565.1806573

Kristian Evensen, T. Kupka, D. Kaspar, P. Halvorsen, C. Griwodz

{"title":"Quality-adaptive scheduling for live streaming over multiple access networks","authors":"Kristian Evensen, T. Kupka, D. Kaspar, P. Halvorsen, C. Griwodz","doi":"10.1145/1806565.1806573","DOIUrl":"https://doi.org/10.1145/1806565.1806573","url":null,"abstract":"Video streaming ranks among the most popular services offered through the Internet today. At the same time, accessing the Internet over public WiFi and 3G networks has become part of our everyday lives. However, streaming video in wireless environments is often subject to frequent periods of rebuffering and characterized by low picture quality. In particular, achieving smooth and quality-adaptive streaming of live video poses a big challenge in mobile scenarios. Building on the observation that the subjective video experience on mobile devices decreases when quality changes are more frequent than every 1 to 2 seconds, we present a client-side scheduler that retrieves segments of several video encodings over heterogeneous network interfaces simultaneously. By extending the DAVVI streaming platform with support for multiple interfaces, the proposed scheduler's performance is experimentally evaluated. The results show that our scheduler reduces the video interruptions and achieves a higher and more stable average quality over multiple, truly heterogeneous wireless interfaces.","PeriodicalId":436504,"journal":{"name":"Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video","volume":"31 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129630980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 38

Request generation for a peer-based PVR 为基于对等的PVR生成请求

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/1806565.1806590

Jeremy Guebert, D. Makaroff, Ketan Mayer-Patel

引用次数: 1

Towards understanding the external links of video sharing sites: measurement and analysis 对视频分享网站外部链接的理解:测量与分析

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/1806565.1806583

Kunfeng Lai, Dan Wang

{"title":"Towards understanding the external links of video sharing sites: measurement and analysis","authors":"Kunfeng Lai, Dan Wang","doi":"10.1145/1806565.1806583","DOIUrl":"https://doi.org/10.1145/1806565.1806583","url":null,"abstract":"Recently, many video sharing sites provide external links so that their video or audio contents can be embedded into external web sites. For example, users can copy the embedded URLs of the videos of YouTube and post on their own blogs. Clearly, the purpose of such functionality is to increase the distribution of the videos and the associated advertisement. In this paper, we provide a comprehensive measurement study and analysis on these external links. With the traces collected from two major VOD sites, YouTube and Youku of China, we show that the external links have various impact on the popularity of the VOD sites. More specifically, for videos that have been uploaded for eight months in Youku, around 15% of views can come from external links. Some contents are densely linked, for example, the comedy videos can attract more than 800 external links on average. We also study the relationship between the external links and the internal links. We show that there are correlations; for example, if a video is popular itself, it will likely have a larger number of external links. Another observation is that we always find that the external links of Youku usually have a higher impact than that of YouTube. We conjecture that a more regional site may enjoy a relatively higher impact from the external links.","PeriodicalId":436504,"journal":{"name":"Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130862677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 20

Randomised pair comparison: an economic and robust method for audiovisual quality assessment 随机配对比较:一种经济可靠的视听质量评估方法

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/1806565.1806582

Alexander Eichhorn, Pengpeng Ni, Ragnhild Eg

{"title":"Randomised pair comparison: an economic and robust method for audiovisual quality assessment","authors":"Alexander Eichhorn, Pengpeng Ni, Ragnhild Eg","doi":"10.1145/1806565.1806582","DOIUrl":"https://doi.org/10.1145/1806565.1806582","url":null,"abstract":"Subjective quality perception studies with human observers are essential for multimedia system design. Such studies are known to be expensive and difficult to administer. They require time, a detailed knowledge of experimental designs and a level of control which can often only be achieved in a laboratory setting. Hence, only very few researchers consider running subjective studies at all. In this paper we present Randomised Pair Comparison (r/pc), an easy-to-use, flexible, economic and robust extension to conventional pair comparison methods. r/pc uses random sampling to select a unique and small subset of pairs for each assessor, thus separating session duration from the experimental design. With r/pc an experimenter can freely define the duration of sessions and balance between costs and accuracy of an experiment. On a realistic example study we show that r/pc is able to create stable results with an accuracy close to full factorial designs, yet much lower costs. We also provide initial evidence that r/pc can avoid unpleasant fatigue and learning effects which are common in long experiment sessions.","PeriodicalId":436504,"journal":{"name":"Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132366262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 26

Session details: GPU and multicore systems 会话细节:GPU和多核系统

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/3251936

M. Hefeeda

引用次数: 0

Performance analysis of home streaming video using Orb 使用Orb的家庭流媒体视频性能分析

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/1806565.1806593

R. Karki, T. Seenivasan, M. Claypool, R. Kinicki

引用次数: 8

Session details: Keynote address 会议详情:主题演讲

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/3251931

D. Bulterman

引用次数: 0

Session details: Quality assessment and measurement 会议细节:质量评估和测量

Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video Pub Date : 2010-06-02 DOI: 10.1145/3251935

P. Halvorsen

引用次数: 0