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FOCS
1992
IEEE
15 years 10 months ago
Dynamic Half-Space Reporting, Geometric Optimization, and Minimum Spanning Trees
We describe dynamic data structures for half-space range reporting and for maintaining the minima of a decomposable function. Using these data structures, we obtain efficient dyna...
Pankaj K. Agarwal, David Eppstein, Jirí Mat...
DASFAA
2004
IEEE
138views Database» more  DASFAA 2004»
15 years 10 months ago
Counting Relaxed Twig Matches in a Tree
Abstract. We consider the problem of accurately estimating the number of approximate XML answers for a given query, and propose an efficient method that (1) accurately computes sel...
Dongwon Lee, Divesh Srivastava
CORR
2010
Springer
91views Education» more  CORR 2010»
15 years 6 months ago
Simulations of Weighted Tree Automata
Simulations of weighted tree automata (wta) are considered. It is shown how such simulations can be decomposed into simpler functional and dual functional simulations also called f...
Zoltán Ésik, Andreas Maletti
JACM
2000
119views more  JACM 2000»
15 years 6 months ago
A minimum spanning tree algorithm with Inverse-Ackermann type complexity
A deterministic algorithm for computing a minimum spanning tree of a connected graph is presented. Its running time is O(m (m, n)), where is the classical functional inverse of Ack...
Bernard Chazelle
SIAMCOMP
2002
139views more  SIAMCOMP 2002»
15 years 6 months ago
Limit Laws for Sums of Functions of Subtrees of Random Binary Search Trees
We consider sums of functions of subtrees of a random binary search tree, and obtain general laws of large numbers and central limit theorems. These sums correspond to random recur...
Luc Devroye