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» Optimization of Complex Nested Queries in Relational Databas...
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PVLDB
2008
167views more  PVLDB 2008»
15 years 2 months ago
Managing and querying transaction-time databases under schema evolution
The old problem of managing the history of database information is now made more urgent and complex by fast spreading web information systems, such as Wikipedia. Our PRIMA system ...
Hyun Jin Moon, Carlo Curino, Alin Deutsch, Chien-Y...
SSDBM
2005
IEEE
111views Database» more  SSDBM 2005»
15 years 8 months ago
Querying Streaming Geospatial Image Data: The GeoStreams Project
Data products generated from remotely-sensed, geospatial imagery (RSI) used in emerging areas, such as global climatology, environmental monitoring, land use, and disaster managem...
Quinn Hart, Michael Gertz
89
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VLDB
1998
ACM
108views Database» more  VLDB 1998»
15 years 7 months ago
MindReader: Querying Databases Through Multiple Examples
Users often can not easily express their queries. For example, in a multimedia image by content setting, the user might want photographs with sunsets; in current systems, like QBI...
Yoshiharu Ishikawa, Ravishankar Subramanya, Christ...
EDBT
2008
ACM
161views Database» more  EDBT 2008»
16 years 3 months ago
Load distribution of analytical query workloads for database cluster architectures
Enterprises may have multiple database systems spread across the organization for redundancy or for serving different applications. In such systems, query workloads can be distrib...
Thomas Phan, Wen-Syan Li
ADC
2006
Springer
130views Database» more  ADC 2006»
15 years 9 months ago
A two-phase rule generation and optimization approach for wrapper generation
Web information extraction is a fundamental issue for web information management and integrations. A common approach is to use wrappers to extract data from web pages or documents...
Yanan Hao, Yanchun Zhang