Title
Highlight-Aware Content Placement in Crowdsourced Livecast Services
Abstract
Recent years have witnessed an explosion of crowdsourced livecast (i.e., live broadcast) services, in which any Internet users can act as broadcasters to publish livecasts to fellow viewers. To help grow broadcasters' channels, crowdsourced livecast services provide a past-broadcast saving service, allowing viewers to watch the replays they may have missed. Our real-trace measurement and questionnaire survey show that (1) the duration of most of livecasts is extremely long; (2) a much longer duration largely affects the viewers' Quality-of-Experiences (QoE) when watching the replays. To address this issue and improve viewers' QoE, we propose a crowdsourced framework HighCast based on the interactive messages contributed by the viewers in crowdsourced livecast services. According to a highlight-aware detection module, HighCast can exploit the detection results to schedule the content placement by considering the importance of the predicted streaming highlights. The trace-based evaluations illustrate that the proposed framework improves the prediction accuracy and reduces the viewing latency.
Year
DOI
Venue
2018
10.1109/IWQoS.2018.8624144
2018 IEEE/ACM 26th International Symposium on Quality of Service (IWQoS)
Field
DocType
ISSN
Publication,Broadcasting,Latency (engineering),Computer science,Communication channel,Computer network,Exploit,Questionnaire,Multimedia,The Internet
Conference
1548-615X
ISBN
Citations 
PageRank 
978-1-5386-2543-9
0
0.34
References 
Authors
3
4
Name
Order
Citations
PageRank
Cong Zhang1233.44
Jiangchuan Liu24340310.86
Haitian Pang35410.97
Fangxin Wang4203.80