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IPL
2008
111views more  IPL 2008»
14 years 10 months ago
Adding cardinality constraints to integer programs with applications to maximum satisfiability
Max-SAT-CC is the following optimization problem: Given a formula in CNF and a bound k, find an assignment with at most k variables being set to true that maximizes the number of ...
Markus Bläser, Thomas Heynen, Bodo Manthey
IPL
2008
65views more  IPL 2008»
14 years 10 months ago
On the fixed-parameter tractability of parameterized model-checking problems
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...
Iain A. Stewart
IPL
2008
72views more  IPL 2008»
14 years 10 months ago
Turing degrees of reals of positive effective packing dimension
A relatively longstanding question in algorithmic randomness is Jan Reimann's question whether there is a Turing cone of broken dimension. That is, is there a real A such that...
Rod Downey, Noam Greenberg
IPL
2008
95views more  IPL 2008»
14 years 10 months ago
Weighted automata with discounting
: We investigate weighted automata with discounting and their behaviours over semirings and finitely generated graded monoids. We characterize the discounted behaviours of weighted...
Manfred Droste, Jacques Sakarovitch, Heiko Vogler
IPL
2008
114views more  IPL 2008»
14 years 10 months ago
Cyclic reference counting
: Reference Counting is the memory management technique of most widespread use today. Very often applications handle objects that are either permanent or get tenured. This paper us...
Rafael Dueire Lins