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» On Relationships Between Query Models
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ICDE
2009
IEEE
115views Database» more  ICDE 2009»
16 years 5 months ago
Efficient Evaluation of Multiple Preference Queries
Consider multiple users searching for a hotel room, based on size, cost, distance to the beach, etc. Users may have variable preferences expressed by different weights on the attri...
Leong Hou U, Nikos Mamoulis, Kyriakos Mouratidis
DOLAP
2004
ACM
15 years 9 months ago
Aggregate queries in peer-to-peer OLAP
A peer-to-peer (P2P) data management system consists essentially of a network of peer systems, each maintaining full autonomy over its own data resources. Data exchange between pe...
Mauricio Minuto Espil, Alejandro A. Vaisman
VLDB
2004
ACM
173views Database» more  VLDB 2004»
15 years 9 months ago
Enhancing P2P File-Sharing with an Internet-Scale Query Processor
In this paper, we address the problem of designing a scalable, accurate query processor for peerto-peer filesharing and similar distributed keyword search systems. Using a global...
Boon Thau Loo, Joseph M. Hellerstein, Ryan Huebsch...
TIME
2000
IEEE
15 years 8 months ago
Navigating through Hierarchical Change Propagation in Spatiotemporal Queries
In spatiotemporal applications, meaningful changes vary according to object type, level of detail, and nature of application. In this paper, we introduce a dynamic classification ...
Giorgos Mountrakis, Peggy Agouris, Anthony Stefani...
WWW
2003
ACM
16 years 4 months ago
Monitoring the dynamic web to respond to continuous queries
Continuous queries are queries for which responses given to users must be continuously updated, as the sources of interest get updated. Such queries occur, for instance, during on...
Sandeep Pandey, Krithi Ramamritham, Soumen Chakrab...