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RC
1998
92views more  RC 1998»
14 years 10 months ago
When Is the Product of Intervals Also an Interval?
Interval arithmetic is based on the fact that for intervals on the real line, the element-wise product of two intervals is also an interval. This property is not always true: e.g....
Olga Kosheleva, Piet G. Vroegindeweij
MP
2007
95views more  MP 2007»
14 years 10 months ago
Smoothed analysis of integer programming
We present a probabilistic analysis of integer linear programs (ILPs). More specifically, we study ILPs in a so-called smoothed analysis in which it is assumed that first an adve...
Heiko Röglin, Berthold Vöcking
NAR
2007
106views more  NAR 2007»
14 years 10 months ago
INFO-RNA - a server for fast inverse RNA folding satisfying sequence constraints
INFO-RNA is a new web server for designing RNA sequences that fold into a user given secondary structure. Furthermore, constraints on the sequence can be specified, e.g. one can r...
Anke Busch, Rolf Backofen
QUESTA
2007
111views more  QUESTA 2007»
14 years 10 months ago
Queues with system disasters and impatient customers when system is down
Consider a system (e.g. a computer farm or a call center) operating as a M/M/c queue, where c = 1, or 1 < c < ∞, or c = ∞. The system as a whole suffers disastrous break...
Uri Yechiali
RC
2007
64views more  RC 2007»
14 years 10 months ago
Unimodality, Independence Lead to NP-Hardness of Interval Probability Problems
In many real-life situations, we only have partial information about probabilities. This information is usually described by bounds on moments, on probabilities of certain events,...
Daniel Berleant, Olga Kosheleva, Vladik Kreinovich...