Test Submitting Technical Report
نویسندگان
چکیده
With the rapid development of mobile networking and end-terminals, anytime and anywhere data access becomes readily available nowadays. Given the crowdsourced content capturing and sharing, the preferred length becomes shorter and shorter, even for such multimedia content as video. A representative is Twitter’s Vine service, which, available exclusively to mobile users, enables them to create ultra-short video clips, and instantly post and share them with their followers. In this paper, we present an initial study on this new generation of instant video clip sharing service enabled by mobile platforms and explore the potentials for its further enhancement. Taking Vine as a case study, we closely investigate its unique mobile interface, revealing how such Vine-enabled anytime anywhere data access patterns differentiate mobile instant video clip sharing from its traditional counterparts. We then formulate a generic scheduling problem to maximize the user watching experiences as well as the efficiency on the monetary and energy costs. We prove that the formulated generic scheduling problem is NP-Complete and to better solve it, we divide the problem into two subproblems, specifically, the pre-fetching scheduling problem and the watch-time download scheduling problem, conquer them separately and then develop a solution for the general problem. We further demonstrate the superiority of our solution by extensive trace-driven simulations. To the best of our knowledge, this is the first work on modeling and optimizing the instant video clip sharing on mobile devices.
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