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SUMMARY:Content search and availability estimation in mobile opportunistic
  networks - Dr Suzan Bayhan - University of Helsinki
DTSTART:20151124T131500Z
DTEND:20151124T134500Z
UID:TALK62691@talks.cam.ac.uk
CONTACT:Gemma Gordon
DESCRIPTION:Mobile devices host increasing volume of data which could be s
 hared with the nearby nodes in a multi-hop fashion. However\, retrieving t
 he content in this resource-restricted setting is challenging due to the l
 ack of a content index\, as well as\, desire for keeping the search cost l
 ow. Compared to the extensive work on opportunistic networks\, predominanc
 e of video and other content calls for new content-centric approaches and 
 revisiting opportunistic networks with this new perspective. In this talk\
 , we overview the key factors affecting the search performance\, provide i
 nsights on optimal search schemes by the help of elementary models\, and s
 how the effect of the search scope\, i.e.\, hop count\, on the search perf
 ormance by analyzing human contact traces. Lastly\, as the optimal strateg
 y depends (among other things) on the content availability\, we introduce 
 several schemes for content availability estimation and discuss their perf
 ormance.\n\nBio: Suzan Bayhan is a post-doctoral researcher at the Univers
 ity of Helsinki\, Finland.  Her research interests include mobile opportun
 istic networks\, cognitive radio\, and information-centric networks. She h
 olds a Ph.D. in Computer Engineering from Bogazici University\, Turkey in 
 2012. She received EMEA Google Anita Borg Memorial Scholarship in 2009.
LOCATION:Computer Laboratory\, William Gates Building\, Room FW11
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