Sciweavers

7106 search results - page 790 / 1422
» Restricted Complexity, General Complexity
Sort
View
182
Voted
PODS
2006
ACM
134views Database» more  PODS 2006»
16 years 7 months ago
Approximate quantiles and the order of the stream
Recently, there has been an increased focus on modeling uncertainty by distributions. Suppose we wish to compute a function of a stream whose elements are samples drawn independen...
Sudipto Guha, Andrew McGregor
187
Voted
PODS
2007
ACM
104views Database» more  PODS 2007»
16 years 7 months ago
XML transformation by tree-walking transducers with invisible pebbles
The pebble tree automaton and the pebble tree transducer are enhanced by additionally allowing an unbounded number of `invisible' pebbles (as opposed to the usual `visible�...
Joost Engelfriet, Hendrik Jan Hoogeboom, Bart Samw...
ICSE
2008
IEEE-ACM
16 years 7 months ago
LISABETH: automated content-based signature generator for zero-day polymorphic worms
Modern worms can spread so quickly that any countermeasure based on human reaction might not be fast enough. Recent research has focused on devising algorithms to automatically pr...
Lorenzo Cavallaro, Andrea Lanzi, Luca Mayer, Matti...
212
Voted
MOBIHOC
2007
ACM
16 years 6 months ago
Approximation algorithms for longest-lived directional multicast communications in WANETs
Several centralized and distributed algorithms have been recently proposed to maximize the multicast lifetime for directional communications in wireless ad-hoc networks. Their per...
Song Guo, Oliver W. W. Yang, Victor C. M. Leung
218
Voted
CIAC
2010
Springer
376views Algorithms» more  CIAC 2010»
16 years 4 months ago
Kernelization for Maximum Leaf Spanning Tree with Positive Vertex Weights
In this paper we consider a natural generalization of the well-known Max Leaf Spanning Tree problem. In the generalized Weighted Max Leaf problem we get as input an undirected co...
Bart Jansen