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SIGMOD
2000
ACM
120views Database» more  SIGMOD 2000»
14 years 1 months ago
Indexing the Positions of Continuously Moving Objects
The coming years will witness dramatic advances in wireless communications as well as positioning technologies. As a result, tracking the changing positions of objects capable of ...
Simonas Saltenis, Christian S. Jensen, Scott T. Le...
IDEAS
2007
IEEE
135views Database» more  IDEAS 2007»
14 years 3 months ago
Bitmap Index Design Choices and Their Performance Implications
Historically, bitmap indexing has provided an important database capability to accelerate queries. However, only a few database systems have implemented these indexes because of t...
Elizabeth J. O'Neil, Patrick E. O'Neil, Kesheng Wu
ICDE
2003
IEEE
157views Database» more  ICDE 2003»
14 years 10 months ago
Energy Efficient Index for Querying Location-Dependent Data in Mobile Broadcast Environments
We are witnessing in recent years growing interest for location-dependent information services among mobile users. This paper examines the issue of processing locationdependent qu...
Jianliang Xu, Baihua Zheng, Wang-Chien Lee, Dik Lu...
SIGMOD
2003
ACM
239views Database» more  SIGMOD 2003»
14 years 9 months ago
D(k)-Index: An Adaptive Structural Summary for Graph-Structured Data
To facilitate queries over semi-structured data, various structural summaries have been proposed. Structural summaries are derived directly from the data and serve as indices for ...
Chen Qun, Andrew Lim, Kian Win Ong
SSDBM
2008
IEEE
115views Database» more  SSDBM 2008»
14 years 3 months ago
Breaking the Curse of Cardinality on Bitmap Indexes
Bitmap indexes are known to be efficient for ad-hoc range queries that are common in data warehousing and scientific applications. However, they suffer from the curse of cardina...
Kesheng Wu, Kurt Stockinger, Arie Shoshani