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CALC
2001
Springer
15 years 7 months ago
2001
Springer
In this paper we investigate how the complexity of the shortest vector problem in a lattice Λ depends on the cycle structure of the additive group Zn /Λ. We give a proof that the...
111
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CCCG
2010
15 years 4 months ago
2010
We analyze degeneracy of lower envelopes of algebraic surfaces. We focus on the cases omitted in the existing complexity analysis of lower envelopes [Halperin and Sharir 1993], an...
114
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CRISIS
2009
15 years 3 months ago
2009
This paper develops a framework for analyzing security risk dependencies in organizations and ranking the risks. The framework captures how risk `diffuses' via complex interac...
87
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IPL
2008
15 years 2 months ago
2008
In this note, we show, through the use of examples, how generic results for proving fixed-parameter tractability which apply to restricted classes of structures can sometimes be m...
116
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ECAI
2006
Springer
15 years 6 months ago
2006
Springer
An approach to handle the complex dynamics of a multi-agent system is based on distinguishing aggregation levels by structuring the system into parts or components. The behavior of...