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GIS
2006
ACM
14 years 11 months ago
Query optimizer for spatial join operations
This paper presents a query optimizer module based on cost estimation that chooses the best filtering step algorithm to perform a specific spatial join operation. A set of express...
Cirano Iochpe, João Luiz Dihl Comba, Miguel...
COMBINATORICS
2004
129views more  COMBINATORICS 2004»
13 years 9 months ago
Operations on Well-Covered Graphs and the Roller-Coaster Conjecture
A graph G is well-covered if every maximal independent set has the same cardinality. Let sk denote the number of independent sets of cardinality k, and define the independence pol...
Philip Matchett
SIGMETRICS
2011
ACM
270views Hardware» more  SIGMETRICS 2011»
13 years 22 days ago
Scalable monitoring via threshold compression in a large operational 3G network
Threshold-based performance monitoring in large 3G networks is very challenging for two main factors: large network scale and dynamics in both time and spatial domains. There exis...
Suk-Bok Lee, Dan Pei, MohammadTaghi Hajiaghayi, Io...
MLQ
1998
70views more  MLQ 1998»
13 years 9 months ago
S-Storage Operators
In 1990, J.L. Krivine introduced the notion of storage operator to simulate, for Church integers, the “call by value” in a context of a “call by name” strategy. In this pre...
Karim Nour
ICDE
2001
IEEE
146views Database» more  ICDE 2001»
14 years 11 months ago
The Skyline Operator
We propose to extend database systems by a Skyline operation. This operation filters out a set of interesting points from a potentially large set of data points. A point is intere...
Stephan Börzsönyi, Donald Kossmann, Konr...