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INFOCOM
2011
IEEE
14 years 10 months ago
To preempt or not: Tackling bid and time-based cheating in online spectrum auctions
—Online spectrum auctions offer ample flexibility for bidders to request and obtain spectrum on-the-fly. Such flexibility, however, opens up new vulnerabilities to bidder mani...
Lara B. Deek, Xia Zhou, Kevin C. Almeroth, Haitao ...
CORR
2011
Springer
164views Education» more  CORR 2011»
14 years 10 months ago
Online Strategies for Intra and Inter Provider Service Migration in Virtual Networks
Network virtualization allows one to build dynamic distributed systems in which resources can be dynamically allocated at locations where they are most useful. In order to fully e...
Dushyant Arora, Marcin Bienkowski, Anja Feldmann, ...
SODA
2012
ACM
217views Algorithms» more  SODA 2012»
13 years 8 months ago
Polynomial integrality gaps for strong SDP relaxations of Densest k-subgraph
The Densest k-subgraph problem (i.e. find a size k subgraph with maximum number of edges), is one of the notorious problems in approximation algorithms. There is a significant g...
Aditya Bhaskara, Moses Charikar, Aravindan Vijayar...
CVPR
2008
IEEE
16 years 8 months ago
Non-refractive modulators for encoding and capturing scene appearance and depth
We analyze the modulation of a light field via nonrefracting attenuators. In the most general case, any desired modulation can be achieved with attenuators having four degrees of ...
Ashok Veeraraghavan, Amit K. Agrawal, Ramesh Raska...
WWW
2008
ACM
16 years 7 months ago
Learning transportation mode from raw gps data for geographic applications on the web
Geographic information has spawned many novel Web applications where global positioning system (GPS) plays important roles in bridging the applications and end users. Learning kno...
Yu Zheng, Like Liu, Longhao Wang, Xing Xie