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STACS
2009
Springer
15 years 6 months ago
Improved Approximations for Guarding 1.5-Dimensional Terrains
Khaled M. Elbassioni, Erik Krohn, Domagoj Matijevi...
STACS
2009
Springer
15 years 6 months ago
Kernel(s) for Problems with No Kernel: On Out-Trees with Many Leaves
Henning Fernau, Fedor V. Fomin, Daniel Lokshtanov,...
STACS
2009
Springer
15 years 6 months ago
Weak MSO with the Unbounding Quantifier
Abstract. A new class of languages of infinite words is introduced, called the maxregular languages, extending the class of ω-regular languages. The class has two equivalent desc...
Mikolaj Bojanczyk
STACS
2009
Springer
15 years 6 months ago
More Haste, Less Waste: Lowering the Redundancy in Fully Indexable Dictionaries
Abstract. We consider the problem of representing, in a compressed format, a bitvector S of m bits with n 1s, supporting the following operations, where b ∈ {0, 1}:
Roberto Grossi, Alessio Orlandi, Rajeev Raman, S. ...
STACS
2009
Springer
15 years 6 months ago
Deciding Unambiguity and Sequentiality of Polynomially Ambiguous Min-Plus Automata
Abstract. This paper solves the unambiguity and the sequentiality problem for polynomially ambiguous min-plus automata. This result is proved through a decidable algebraic characte...
Daniel Kirsten, Sylvain Lombardy