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COMPGEOM
2007
ACM
13 years 11 months ago
2007
ACM
The paper consists of two major parts. In the first part, we re-examine relative -approximations, previously studied in [12, 13, 18, 25], and their relation to certain geometric p...
CSFW
2004
IEEE
13 years 11 months ago
2004
IEEE
We study the specification of access control policy in large-scale distributed systems. We present Cassandra, a language and system for expressing policy, and the results of a sub...
AUTONOMICS
2008
ACM
13 years 9 months ago
2008
ACM
A prominent functionality of a Wireless Sensor Network (WSN) is environmental monitoring. For this purpose the WSN creates a model for the real world by using abstractions to pars...
CRYPTO
2008
Springer
13 years 9 months ago
2008
Springer
Despite considerable research efforts, no efficient reduction from the discrete log problem to forging a discrete log based signature (e.g. Schnorr) is currently known. In fact, ne...
LREC
2008
13 years 8 months ago
2008
This paper presents the sequential evaluation of the question answering system SQuaLIA. This system is based on the same sequential process as most statistical question answering ...