Proxy Caching for Video-on-Demand Using Flexible Starting Point Selection Export

@article{citeulike:6043261, abstract = {In this paper, we propose a novel proxy caching scheme for video-on-demand (VoD) services. Our approach is based on the observation that streaming video users searching for some specific content or scene pay most attention to the initial delay, while a small shift of the starting point is acceptable. We present results from subjective VoD tests that relate waiting time and starting point deviation to user satisfaction. Based on this relationship as well as the dynamically changing popularity of video segments, we propose an efficient segment-based caching algorithm, which maximizes the user satisfaction by trading off between the initial delay and the deviation of starting point. Our caching scheme supports interactive video cassette recorder (VCR) functionalities and enables cache replacement with a much finer granularity compared to previously proposed segment-based approaches. Our experimental results show a significantly improved user satisfaction for our scheme compared to conventional caching schemes.}, author = {Tu, Wei and Steinbach, E. and Muhammad, M. and Li, Xiaoling}, citeulike-article-id = {6043261}, citeulike-linkout-0 = {http://dx.doi.org/10.1109/TMM.2009.2017621}, citeulike-linkout-1 = {http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4895726}, day = {28}, doi = {10.1109/TMM.2009.2017621}, journal = {Multimedia, IEEE Transactions on}, keywords = {proxy, seminar, video}, month = {April}, number = {4}, pages = {716--729}, posted-at = {2009-10-30 15:17:41}, priority = {2}, title = {Proxy Caching for Video-on-Demand Using Flexible Starting Point Selection}, url = {http://dx.doi.org/10.1109/TMM.2009.2017621}, volume = {11}, year = {2009} }

TY - JOUR ID - citeulike:6043261 L3 - citeulike-article-id:6043261 N2 - In this paper, we propose a novel proxy caching scheme for video-on-demand (VoD) services. Our approach is based on the observation that streaming video users searching for some specific content or scene pay most attention to the initial delay, while a small shift of the starting point is acceptable. We present results from subjective VoD tests that relate waiting time and starting point deviation to user satisfaction. Based on this relationship as well as the dynamically changing popularity of video segments, we propose an efficient segment-based caching algorithm, which maximizes the user satisfaction by trading off between the initial delay and the deviation of starting point. Our caching scheme supports interactive video cassette recorder (VCR) functionalities and enables cache replacement with a much finer granularity compared to previously proposed segment-based approaches. Our experimental results show a significantly improved user satisfaction for our scheme compared to conventional caching schemes. IS - 4 JF - Multimedia, IEEE Transactions on EP - 729 TI - Proxy Caching for Video-on-Demand Using Flexible Starting Point Selection VL - 11 SP - 716 KW - proxy KW - seminar KW - video AU - Tu, Wei AU - Steinbach, E AU - Muhammad, M AU - Li, Xiaoling PY - 2009/04/28/ UR - http://dx.doi.org/10.1109/TMM.2009.2017621 ER -