Sciweavers

6004 search results - page 435 / 1201
» Parallelizing query optimization
Sort
View
ICDE
2007
IEEE
182views Database» more  ICDE 2007»
16 years 9 months ago
DIKNN: An Itinerary-based KNN Query Processing Algorithm for Mobile Sensor Networks
Current approaches to K Nearest Neighbor (KNN) search in mobile sensor networks require certain kind of indexing support. This index could be either a centralized spatial index or...
Shan-Hung Wu, Kun-Ta Chuang, Chung-Min Chen, Ming-...
222
Voted
MIDDLEWARE
2004
Springer
16 years 27 days ago
Guiding Queries to Information Sources with InfoBeacons
The Internet provides a wealth of useful information in a vast number of dynamic information sources, but it is difficult to determine which sources are useful for a given query. ...
Brian F. Cooper
ICPPW
2002
IEEE
16 years 14 days ago
High Performance Air Pollution Simulation Using OpenMP
The aim of this work is to provide a high performance air quality simulation using the STEM-II (Sulphur Transport Eulerian Model 2) program. First of all we optimize the sequentia...
Marta Parada, María J. Martín, Ramon...
STOC
2009
ACM
133views Algorithms» more  STOC 2009»
16 years 8 months ago
New direct-product testers and 2-query PCPs
The "direct product code" of a function f gives its values on all k-tuples (f(x1), . . . , f(xk)). This basic construct underlies "hardness amplification" in c...
Russell Impagliazzo, Valentine Kabanets, Avi Wigde...
194
Voted
SIGMETRICS
2010
ACM
213views Hardware» more  SIGMETRICS 2010»
16 years 10 days ago
Small subset queries and bloom filters using ternary associative memories, with applications
Associative memories offer high levels of parallelism in matching a query against stored entries. We design and analyze an architecture which uses a single lookup into a Ternary C...
Ashish Goel, Pankaj Gupta