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WWW
2009
ACM
14 years 9 months ago
Dataplorer: a scalable search engine for the data web
More and more structured information in the form of semantic data is nowadays available. It offers a wide range of new possibilities especially for semantic search and Web data in...
Haofen Wang, Qiaoling Liu, Gui-Rong Xue, Yong Yu, ...
VLDB
2007
ACM
152views Database» more  VLDB 2007»
14 years 9 months ago
Structured Materialized Views for XML Queries
The performance of XML database queries can be greatly enhanced by rewriting them using materialized views. We study the problem of rewriting a query using materialized views, whe...
Andrei Arion, Ioana Manolescu, Véronique Be...
LAWEB
2005
IEEE
14 years 2 months ago
Optimized Index Structures for Querying RDF from the Web
Storing and querying Resource Description Framework (RDF) data is one of the basic tasks within any Semantic Web application. A number of storage systems provide assistance for th...
Andreas Harth, Stefan Decker
IWMMDBMS
1996
64views more  IWMMDBMS 1996»
13 years 10 months ago
Spatial Indexing into Compressed Raster Images: How to Answer Range Queries Without Decompression
The maintenance of large raster images under spatial operations is still a major performance bottleneck. For reasons of storage space, images in a collection, such as satellite pi...
Renato Pajarola, Peter Widmayer
CIDR
2009
102views Algorithms» more  CIDR 2009»
13 years 10 months ago
Why Did My Query Slow Down
Enterprise environments have isolated teams responsible separately for database management and the management of underlying networkattached server-storage infrastructure (referred...
Nedyalko Borisov, Sandeep Uttamchandani, Ramani Ro...