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SRDS
2005
IEEE
14 years 4 months ago
2005
IEEE
We present an algorithm by which nodes arranged in a tree, with each node initially knowing only its parent and children, can construct a fault-tolerant communication structure (a...
GIS
2008
ACM
15 years 1 days ago
2008
ACM
In order to provide context?aware Location?Based Services, real location data of mobile users must be collected and analyzed by spatio?temporal data mining methods. However, the d...
CTRSA
2004
Springer
14 years 4 months ago
2004
Springer
We introduce a new cryptographic technique that we call universal re-encryption. A conventional cryptosystem that permits reencryption, such as ElGamal, does so only for a player w...
CSCW
2012
ACM
12 years 6 months ago
2012
ACM
Two important performance metrics in collaborative systems are local and remote response times. Previous analytical and simulation work has shown that these response times depend ...
MOBISYS
2008
ACM
14 years 10 months ago
2008
ACM
Personal mobile devices are increasingly equipped with the capability to sense the physical world (through cameras, microphones, and accelerometers, for example) and the network w...