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Characterizing user access to videos on the World Wide Web
Cornell University, Ithaca.
Cornell University, Ithaca.
Luleå tekniska universitet, Institutionen för system- och rymdteknik, Datavetenskap.ORCID-id: 0000-0002-4279-5396
1999 (engelsk)Inngår i: Multimedia computing and networking 2000 / [ed] Klara Nahrstedt, Bellingham, Wash: SPIE - International Society for Optical Engineering, 1999, s. 130-141Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Despite evidence of rising popularity of video on the web (or VOW), little is known about how users access video. However, such a characterization can greatly benefit the design of multimedia systems such as web video proxies and VOW servers. Hence, this paper presents an analysis of trace data obtained from an ongoing VOW experiment in Lulea University of Technology, Sweden. This experiment is unique as video material is distributed over a high bandwidth network allowing users to make access decisions without the network being a major factor. Our analysis revealed a number of interesting discoveries regarding user VOW access. For example, accesses display high temporal locality: several requests for the same video title often occur within a short time span. Accesses also exhibited spatial locality of reference whereby a small number of machines accounted for a large number of overall requests. Another finding was a browsing pattern where users preview the initial portion of a video to find out if they are interested. If they like it, they continue watching, otherwise they halt it. This pattern suggests that caching the first several minutes of video data should prove effective. Lastly, the analysis shows that, contrary to previous studies, ranking of video titles by popularity did not fit a Zipfian distribution.

sted, utgiver, år, opplag, sider
Bellingham, Wash: SPIE - International Society for Optical Engineering, 1999. s. 130-141
Serie
Proceedings of SPIE, the International Society for Optical Engineering, ISSN 0277-786X ; 3969
HSV kategori
Forskningsprogram
Distribuerade datorsystem
Identifikatorer
URN: urn:nbn:se:ltu:diva-34404DOI: 10.1117/12.373516Lokal ID: 897523f0-a08d-11db-8975-000ea68e967bISBN: 0-8194-3587-2 (tryckt)OAI: oai:DiVA.org:ltu-34404DiVA, id: diva2:1007655
Konferanse
IS&T/SPIE Conference on Multimedia Computing and Networking 2000 : 24/01/2000 - 26/01/2000
Merknad
Godkänd; 1999; 20061105 (ysko)Tilgjengelig fra: 2016-09-30 Laget: 2016-09-30 Sist oppdatert: 2018-01-14bibliografisk kontrollert

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