486 search results - page 81 / 98 » Evaluating Top-k Queries over Web-Accessible Databases |
DASFAA
2008
IEEE
15 years 8 months ago
2008
IEEE
The DWS (Data Warehouse Striping) technique is a round-robin data partitioning approach especially designed for distributed data warehousing environments. In DWS the fact tables ar...
122
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IDEAS
2010
IEEE
14 years 11 months ago
2010
IEEE
Abstract. We consider the class of applications that manage time series (TS) and propose a data model and a query language that let these applications manipulate TS data sets at a ...
CVPR
2000
IEEE
16 years 3 months ago
2000
IEEE
This paper examines the problem of image retrieval from large, heterogeneous image databases. We present a technique that fulfills several needs identified by surveying recent res...
124
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IDEAS
2008
IEEE
15 years 7 months ago
2008
IEEE
With more and more natural language text stored in databases, handling respective query predicates becomes very important. Optimizing queries with predicates includes (sub)string ...
121
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SSDBM
2008
IEEE
15 years 7 months ago
2008
IEEE
Random sampling is a popular technique for providing fast approximate query answers, especially in data warehouse environments. Compared to other types of synopses, random sampling...