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» On the Complexity of Hardness Amplification
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CORR
2007
Springer
94views Education» more  CORR 2007»
13 years 7 months ago
Size reduction of complex networks preserving modularity
The ubiquity of modular structure in real-world complex networks is being the focus of attention in many trials to understand the interplay between network topology and functionali...
Alex Arenas, J. Duch, A. Fernandez, Sergio G&oacut...
LICS
2009
IEEE
14 years 2 months ago
On the Computational Complexity of Verifying One-Counter Processes
—One-counter processes are pushdown systems over a singleton stack alphabet (plus a stack-bottom symbol). We study the complexity of two closely related verification problems ov...
Stefan Göller, Richard Mayr, Anthony Widjaja ...
ATAL
2009
Springer
14 years 2 months ago
On the complexity of schedule control problems for knockout tournaments
Knockout tournaments constitute a common format of sporting events, and also model a specific type of election scheme (namely, sequential pairwise elimination election). In such ...
Thuc Vu, Alon Altman, Yoav Shoham
IWPEC
2009
Springer
14 years 2 months ago
Paths of Bounded Length and Their Cuts: Parameterized Complexity and Algorithms
We study the parameterized complexity of two families of problems: the bounded length disjoint paths problem and the bounded length cut problem. From Menger’s theorem both proble...
Petr A. Golovach, Dimitrios M. Thilikos
COCO
2004
Springer
106views Algorithms» more  COCO 2004»
14 years 1 months ago
Separating Complexity Classes Using Structural Properties
We study the robustness of complete sets for various complexity classes. A complete set A is robust if for any f(n)-dense set S ∈ P, A−S is still complete, where f(n) ranges f...
Harry Buhrman, Leen Torenvliet