다음과 같은 주제로 세미나를 개최합니다.
제목: Floating Content: Opportunistic Information Sharing in Urban Areas
연사: Prof. Jussi Kangasharju (University of Helsinki)
일시; 2012년 9월 20일(목), 오후 3시 30분
장소: 301동 551호
Abstract:
Content
sharing using personal web pages, blogs, or online social networks is a
common means for people to maintain contact with their friends,
colleagues, and acquaintances. While such means are essential to
overcome distances, using infrastructure services for location-based
services may not be desirable. In this talk, we present a fully
distributed variant of an ephemeral content sharing service, solely
dependent on the mobile devices in the vicinity using principles of
opportunistic networking.
The
net result is a best effort service for floating content in which: 1)
information dissemination is geographically limited; 2) the lifetime and
spreading of information depends on interested nodes being available;
3) content can only be created and distributed locally; and 4) content
can only be added, but not explicitly deleted. We present our system
design, summarize its analytical modeling, and perform extensive
evaluation for a map-based mobility model in downtown Helsinki to assess
the operational range for floating content. We also consider issues
related to naming and present an API for floating content applications
and its simple evaluation.
In the talk, I will also give an overview of my research on information-centric networking and green computing.
Short bio:
Jussi Kangasharju received his MSc
from Helsinki University of Technology in 1998. He received his Diplome
d’Etudes Approfondies (DEA) from the Ecole Superieure des Sciences
Informatiques (ESSI) in Sophia Antipolis in 1998. In 2002 he received
his PhD from University of Nice Sophia Antipolis/Institut Eurecom. In
2002 he joined Darmstadt University of Technology (TUD), first as
post-doctoral researcher, and from 2004 onwards as assistant professor.
In 2007 he successfully passed his 3-year evaluation for a contract
extension at TUD. Since June 2007 Jussi is a professor at the department
of computer science at University of Helsinki. Since January 2009 he is
also the director of the Future Internet research program at Helsinki
Institute for Information Technology (HIIT). Jussi’s research interests
are information-centric networks, content distribution, pervasive
computing, and green networking. He is a member of IEEE and ACM.