RANDOM
2001
Springer
14 years 2 days ago
2001
Springer
We study integrated prefetching and caching in single and parallel disk systems. A recent approach used linear programming to solve the problem. We show that integrated prefetching...
RANDOM
2001
Springer
14 years 2 days ago
2001
Springer
We consider the problem of determining whether a given function ¢ £ ¤¥ ¦ §¨© ¤¥ ¦ §¨ belongs to a certain class of Boolean functions or whether it is far from the...
MFCS
2001
Springer
14 years 2 days ago
2001
Springer
Abstract. We prove that the class of context-free languages with polynomially bounded ambiguity (PCFL) is the closure of the class of unambiguous languages (UCFL) under projections...
MFCS
2001
Springer
14 years 2 days ago
2001
Springer
We show that it is not possible to approximate the minimum Steiner tree problem within 1 + 1 162 unless RP = NP. The currently best known lower bound is 1 + 1 400. The reduction i...
MFCS
2001
Springer
14 years 2 days ago
2001
Springer
We describe a class of simple transitive semiautomata that exhibit full exponential blow-up during deterministic simulation. For arbitrary semiautomata we show that it is PSPACE-c...
MFCS
2001
Springer
14 years 2 days ago
2001
Springer
MFCS
2001
Springer
14 years 2 days ago
2001
Springer
We describe an explicit simulation of 2-way nondeterministic automata by 1-way alternating automata with quadratic blow-up. We first describe the construction for automata on fin...
MFCS
2001
Springer
14 years 2 days ago
2001
Springer
This paper shows that the traces of rational graphs coincide with the context-sensitive languages.
MFCS
2001
Springer
14 years 2 days ago
2001
Springer
MFCS
2001
Springer
14 years 2 days ago
2001
Springer
In the traveling repairman problem (Trp), a tour must be found through every one of a set of points (cities) in some metric space such that the weighted sum of completion times of ...