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User-generated content (UGC) video systems by definition heavily depend on the input of their community of users and their social interactions for video diffusion and opinion sharing. Nevertheless, we show in this paper, through measurement and analysis of YouKu, the most popular UGC video system in China, that the social connectivity of its users is very low. These observations are consistent with...
While there are several ways for video finding in UGC (user generated content) video dystems, video search is still the number one source of video views in aggregation. In this paper, we propose to use peer-assisted search to alleviate the server burden caused by video search. To this end, we have measured and analyzed You Ku, the largest UGC video system in China. With a large dataset, we have found...
The subscription in UGC (user-generated content) video systems provides shortcuts for users to be aware of emerging videos from their subscribings. While the subscription is deemed to have great impacts on video views, its patterns and impacts on the user popularity are not well understood. By measuring YouKu, the largest UGC video system in China, we have found stretched exponential distributions...
The social connections among users have significant impacts on UGC video systems. The goal of this paper is to study the social connectivity of such systems by measuring YouKu, the most popular UGC video system in China. We have collected 627 thousand user profiles, 3 million social connections and 13.6 million videos' information. The analysis results have shown that the social connectivity is extremely...
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