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STACS
2010
Springer
14 years 2 months ago
2010
Springer
In this paper we consider the problem of reconstructing a hidden weighted
hypergraph of constant rank using additive queries. We prove the following: Let G be
a weighted hidden h...
CORR
2007
Springer
13 years 7 months ago
2007
Springer
Abstract. We prove an n-exptime lower bound for the problem of deciding the winner in a reachability game on Higher Order Pushdown Automata (HPDA) of level n. This bound matches th...
DIS
2007
Springer
13 years 11 months ago
2007
Springer
A geometric graph is a labeled graph whose vertices are points in the 2D plane with an isomorphism invariant under geometric transformations such as translation, rotation, and scal...
BIRTHDAY
2010
Springer
13 years 8 months ago
2010
Springer
The question of whether there is a logic that captures polynomial time was formulated by Yuri Gurevich in 1988. It is still wide open and regarded as one of the main open problems...
EDBT
2009
ACM
14 years 8 days ago
2009
ACM
Structured data including sets, sequences, trees and graphs, pose significant challenges to fundamental aspects of data management such as efficient storage, indexing, and simila...