2853 search results - page 99 / 571 » On the Efficiency of Provenance Queries |
191
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DAGSTUHL
1998
15 years 7 months ago
1998
Hypothetical queries are queries embedding hypotheses about the database. The embedded hypothesis in a hypothetical query indicates, so to say, a state of the database intended for...
270
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SIGMOD
2006
ACM
16 years 6 months ago
2006
ACM
This paper presents a principled framework for efficient processing of ad-hoc top-k (ranking) aggregate queries, which provide the k groups with the highest aggregates as results....
188
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SIGMOD
2010
ACM
15 years 6 months ago
2010
ACM
Trajectory search has long been an attractive and challenging topic which blooms various interesting applications in spatial-temporal databases. In this work, we study a new probl...
168
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CIKM
2008
Springer
15 years 8 months ago
2008
Springer
In a number of application areas, distributed database systems can be used to provide persistent storage of data while providing efficient access for both local and remote data. W...
272
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GIS
2006
ACM
16 years 7 months ago
2006
ACM
Geography Markup Language (GML) is an XML-based language for the markup, storage, and exchange of geospatial data. It provides a rich geospatial vocabulary and allows flexible doc...