Sciweavers

2924 search results - page 263 / 585
» Lower Bounds in Distributed Computing
Sort
View
ICTCS
2005
Springer
15 years 9 months ago
Improved Algorithms for Polynomial-Time Decay and Time-Decay with Additive Error
Abstract. We consider the problem of maintaining polynomial and exponential decay aggregates of a data stream, where the weight of values seen from the stream diminishes as time el...
Tsvi Kopelowitz, Ely Porat
COCOON
2008
Springer
15 years 5 months ago
Spreading Messages
Abstract. We model a network in which messages spread by a simple directed graph G = (V, E) [1] and a function : V N mapping each v V to a positive integer less than or equal to...
Ching-Lueh Chang, Yuh-Dauh Lyuu
CCCG
2007
15 years 5 months ago
Cache-Oblivious Output-Sensitive Two-Dimensional Convex Hull
We consider the problem of two-dimensional outputsensitive convex hull in the cache-oblivious model. That is, we are interested in minimizing the number of cache faults caused whe...
Peyman Afshani, Arash Farzan
PVLDB
2008
201views more  PVLDB 2008»
15 years 3 months ago
Ed-Join: an efficient algorithm for similarity joins with edit distance constraints
There has been considerable interest in similarity join in the research community recently. Similarity join is a fundamental operation in many application areas, such as data inte...
Chuan Xiao, Wei Wang 0011, Xuemin Lin
ALT
2004
Springer
16 years 1 months ago
On Kernels, Margins, and Low-Dimensional Mappings
Kernel functions are typically viewed as providing an implicit mapping of points into a high-dimensional space, with the ability to gain much of the power of that space without inc...
Maria-Florina Balcan, Avrim Blum, Santosh Vempala