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» A data abstraction approach for query relaxation
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ER
1999
Springer
155views Database» more  ER 1999»
13 years 11 months ago
Detecting Redundancy in Data Warehouse Evolution
A Data Warehouse DW can be abstractly seen as a set of materialized views de ned over a set of remote data sources. A DW is intended to satisfy a set of queries. The views materi...
Dimitri Theodoratos
GEOS
2009
Springer
14 years 3 days ago
SPARQL Query Re-writing Using Partonomy Based Transformation Rules
Abstract. Often the information present in a spatial knowledge base is represented at a different level of granularity and abstraction than the query constraints. For querying onto...
Prateek Jain, Peter Z. Yeh, Kunal Verma, Cory A. H...
EDBT
2002
ACM
141views Database» more  EDBT 2002»
14 years 7 months ago
Efficient OLAP Query Processing in Distributed Data Warehouses
Abstract. The success of Internet applications has led to an explosive growth in the demand for bandwidth from ISPs. Managing an IP network requires collecting and analyzing networ...
Michael O. Akinde, Michael H. Böhlen, Theodor...
SEBD
2003
144views Database» more  SEBD 2003»
13 years 8 months ago
Approximate Query Answering on Sensor Network Data Streams
Abstract. Sensor networks represent a non traditional source of information, as readings generated by sensors flow continuously, leading to an infinite stream of data. Traditiona...
Alfredo Cuzzocrea, Filippo Furfaro, Elio Masciari,...
ICSOC
2009
Springer
14 years 2 months ago
An Automatic Approach to Enable Replacement of Conversational Services
Abstract. In Service Oriented Architectures (SOAs) services invoked in a composition can be replaced by other services, which are possibly discovered and bound at runtime. Most of ...
Luca Cavallaro, Elisabetta Di Nitto, Matteo Pradel...