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2004
ACM
145views Algorithms» more  STOC 2004»
14 years 10 months ago
Using mixture models for collaborative filtering
A collaborative filtering system at an e-commerce site or similar service uses data about aggregate user behavior to make recommendations tailored to specific user interests. We d...
Jon M. Kleinberg, Mark Sandler
MOBIHOC
2005
ACM
14 years 9 months ago
Sextant: a unified node and event localization framework using non-convex constraints
Determining node and event locations is a canonical task for many wireless network applications. Yet dedicated infrastructure for determining position information is expensive, en...
Emin Gün Sirer, Rohan Murty, Saikat Guha
WISEC
2010
ACM
14 years 5 months ago
Timing-based localization of in-band wormhole tunnels in MANETs
The problem of localizing in-band wormhole tunnels in MANETs is considered. In an in-band wormhole attack, colluding attackers use a covert tunnel to create the illusion that two ...
Jinsub Kim, Dan Sterne, Rommie Hardy, Roshan K. Th...
WISEC
2009
ACM
14 years 4 months ago
Towards a theory for securing time synchronization in wireless sensor networks
Time synchronization in highly distributed wireless systems like sensor and ad hoc networks is extremely important in order to maintain a consistent notion of time throughout the ...
Murtuza Jadliwala, Qi Duan, Shambhu J. Upadhyaya, ...
CCS
2009
ACM
14 years 4 months ago
Scalable onion routing with torsk
We introduce Torsk, a structured peer-to-peer low-latency anonymity protocol. Torsk is designed as an interoperable replacement for the relay selection and directory service of th...
Jon McLachlan, Andrew Tran, Nicholas Hopper, Yongd...