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GIS
2004
ACM
16 years 7 months ago
Supporting spatial aggregation in sensor network databases
Sensor networks are unattended deeply distributed systems whose schema can be conceptualized using the relational model. Aggregation queries on the data sampled at each ode are th...
Mehdi Sharifzadeh, Cyrus Shahabi
WWW
2008
ACM
16 years 7 months ago
Tagpedia: a Semantic Reference to Describe and Search for Web Resources
Nowadays the Web represents a growing collection of an enormous amount of contents where the need for better ways to find and organize the available data is becoming a fundamental...
Francesco Ronzano, Andrea Marchetti, Maurizio Tesc...
WWW
2007
ACM
16 years 7 months ago
Improving the Performance of Online Auctions Through Server-side Activity-based Caching
Online auction sites have very specific workloads and user behavior characteristics. Previous studies on workload characterization conducted by the authors showed that i) bidding a...
Daniel A. Menascé, Vasudeva Akula
WWW
2001
ACM
16 years 7 months ago
Intelligent crawling on the World Wide Web with arbitrary predicates
The enormous growth of the world wide web in recent years has made it important to perform resource discovery e ciently. Consequently, several new ideas have been proposed in rece...
Charu C. Aggarwal, Fatima Al-Garawi, Philip S. Yu
PODC
2009
ACM
16 years 7 months ago
Brief announcement: minimum spanning trees and cone-based topology control
Consider a setting where nodes can vary their transmission power thereby changing the network topology, the goal of topology control is to reduce the transmission power while ensu...
Alejandro Cornejo, Nancy A. Lynch