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CORR
2008
Springer
93views Education» more  CORR 2008»
13 years 10 months ago
Succinctness of the Complement and Intersection of Regular Expressions
Abstract. We study the succinctness of the complement and intersection of regular expressions. In particular, we show that when constructing a regular expression defining the compl...
Wouter Gelade, Frank Neven
ORL
2007
84views more  ORL 2007»
13 years 9 months ago
The price of anarchy in an exponential multi-server
We consider a single multi-server memoryless service station. Servers have heterogeneous service rates. Arrivals are routed to one of the servers, and the routing decisions are no...
Moshe Haviv, Tim Roughgarden
HICSS
2005
IEEE
147views Biometrics» more  HICSS 2005»
14 years 3 months ago
Branching Process Models for the Exponentially Increasing Portions of Cascading Failure Blackouts
We introduce branching process models in discrete and continuous time for the exponentially increasing phase of cascading blackouts. Cumulative line trips from real blackout data ...
Ian Dobson, Benjamin A. Carreras, David E. Newman
STOC
2002
ACM
101views Algorithms» more  STOC 2002»
14 years 10 months ago
An exponential separation between regular and general resolution
: This paper gives two distinct proofs of an exponential separation between regular resolution and unrestricted resolution. The previous best known separation between these systems...
Michael Alekhnovich, Jan Johannsen, Toniann Pitass...