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JCSS
2010
114views more  JCSS 2010»
13 years 3 months ago
FPT algorithms and kernels for the Directed k-Leaf problem
A subgraph T of a digraph D is an out-branching if T is an oriented spanning tree with only one vertex of in-degree zero (called the root). The vertices of T of out-degree zero ar...
Jean Daligault, Gregory Gutin, Eun Jung Kim, Ander...
JCSS
2010
91views more  JCSS 2010»
13 years 3 months ago
Content-dependent chunking for differential compression, the local maximum approach
When a file is to be transmitted from a sender to a recipient and when the latter already has a file somewhat similar to it, remote differential compression seeks to determine t...
Nikolaj Bjørner, Andreas Blass, Yuri Gurevi...
CORR
2010
Springer
105views Education» more  CORR 2010»
13 years 5 months ago
Exact Shortest Path Queries for Planar Graphs Using Linear Space
We provide the first linear-space data structure with provable sublinear query time for exact point-topoint shortest path queries in planar graphs. We prove that for any planar gr...
Shay Mozes, Christian Sommer
ECCC
2010
77views more  ECCC 2010»
13 years 5 months ago
In a World of P=BPP
We show that proving results such as BPP = P essentially necessitate the construction of suitable pseudorandom generators (i.e., generators that suffice for such derandomization r...
Oded Goldreich
SODA
2010
ACM
177views Algorithms» more  SODA 2010»
14 years 2 months ago
On the Exact Space Complexity of Sketching and Streaming Small Norms
We settle the 1-pass space complexity of (1 ? )approximating the Lp norm, for real p with 1 p 2, of a length-n vector updated in a length-m stream with updates to its coordinate...
Daniel M. Kane, Jelani Nelson, David P. Woodruff