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DOLAP
2004
ACM
14 years 3 months ago
An analysis of additivity in OLAP systems
Accurate summary data is of paramount concern in data warehouse systems; however, there have been few attempts to completely characterize the ability to summarize measures. The su...
John Horner, Il-Yeol Song, Peter P. Chen
TMC
2011
1105views more  TMC 2011»
13 years 5 months ago
A Privacy-Preserving Location Monitoring System for Wireless Sensor Networks
—Monitoring personal locations with a potentially untrusted server poses privacy threats to the monitored individuals. To this end, we propose a privacy-preserving location monit...
Chi-Yin Chow, Mohamed F. Mokbel, Tian He
MIDDLEWARE
2007
Springer
14 years 4 months ago
Combining ontology queries with key word search in the GloServ service discovery system
GloServ is a global service discovery system which aggregates different types of services in a globally distributed network. It improves on current service discovery systems by sc...
Knarig Arabshian, Henning Schulzrinne
VLDB
2004
ACM
99views Database» more  VLDB 2004»
14 years 3 months ago
Query Languages and Data Models for Database Sequences and Data Streams
We study the fundamental limitations of relational algebra (RA) and SQL in supporting sequence and stream queries, and present effective query language and data model enrichments ...
Yan-Nei Law, Haixun Wang, Carlo Zaniolo
ICDE
2008
IEEE
139views Database» more  ICDE 2008»
14 years 11 months ago
Simultaneous Equation Systems for Query Processing on Continuous-Time Data Streams
We introduce Pulse, a framework for processing continuous queries over models of continuous-time data, which can compactly and accurately represent many real-world activities and p...
Jennie Rogers, Olga Papaemmanouil, Ugur Çet...