Content and geographical locality in user-generated content sharing systems
Details
Download: Kloudas12NOSSDAV.pdf (490.06 [Ko])
State: Public
Version: author
State: Public
Version: author
Serval ID
serval:BIB_DB4E04B4F189
Type
Inproceedings: an article in a conference proceedings.
Collection
Publications
Institution
Title
Content and geographical locality in user-generated content sharing systems
Title of the conference
Proceedings of the 22nd SIGMM International Workshop on Network and Operating Systems Support for Digital Audio and Video (NOSSDAV)
Publisher
ACM
Address
Toronto, Ontario, Canada
ISBN
978-1-4503-1430-5
Publication state
Published
Issued date
2012
Peer-reviewed
Oui
Pages
77-82
Language
english
Abstract
User Generated Content (UGC), such as YouTube videos, accounts for a substantial fraction of the Internet traffic. To optimize their performance, UGC services usually rely on both proactive and reactive approaches that exploit spatial and temporal locality in access patterns. Alternative types of locality are also relevant and hardly ever considered together. In this paper, we show on a large (more than 650,000 videos) YouTube dataset that content locality (induced by the related videos feature) and geographic locality, are in fact correlated. More specifically, we show how the geographic view distribution of a video can be inferred to a large extent from that of its related videos. We leverage these findings to propose a UGC storage system that proactively places videos close to the expected requests. Compared to a caching-based solution, our system decreases by 16% the number of requests served from a different country than that of the requesting user, and even in this case, the distance between the user and the server is 29% shorter on average.
Keywords
User-generated content, content distribution
Create date
01/12/2016 9:45
Last modification date
20/08/2019 16:00