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EUROSSC
2007
Springer
15 years 4 months ago
2007
Springer
In this paper we present how motion sensing can be obtained just by observing the WLAN radio signal strength and its fluctuations. The temporal, spectral and spatial characteristi...
ICALP
2007
Springer
15 years 4 months ago
2007
Springer
We present algebraic conditions on constraint languages Γ that ensure the hardness of the constraint satisfaction problem CSP(Γ) for complexity classes L, NL, P, NP and ModpL. Th...
ICALP
2007
Springer
15 years 4 months ago
2007
Springer
Gaifman’s locality theorem states that every first-order sentence is equivalent to a local sentence. We show that there is no elementary bound on the length of the local sentenc...
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IPSN
2007
Springer
15 years 4 months ago
2007
Springer
Recent work has shown that, despite the minimal information provided by a binary proximity sensor, a network of such sensors can provide remarkably good target tracking performanc...
IWDW
2007
Springer
15 years 4 months ago
2007
Springer
Aiming at detecting secret information hidden in a given image using steganographic tools, steganalysis has been of interest since the end of 1990’s. In particular, universal ste...