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ICDE
2012
IEEE
11 years 10 months ago
2012
IEEE
Abstract—This paper revisits the classical problem of multiquery optimization in the context of RDF/SPARQL. We show that the techniques developed for relational and semi-structur...
ADBIS
2004
Springer
14 years 1 months ago
2004
Springer
The old idea of navigation in a database is revisited with two essential changes: we address Web users rather than programmers and the navigation is accomplished as a visual metaph...
KES
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. Search engines traditionally index unstructured text and return ranked lists of documents that match a given query. As search engines functionally move in the direction o...
SIGMOD
2005
ACM
14 years 7 months ago
2005
ACM
Clio, the IBM Research system for expressing declarative schema mappings, has progressed in the past few years from a research prototype into a technology that is behind some of I...
VLDB
2003
ACM
14 years 7 months ago
2003
ACM
The Decomposition Storage Model (DSM) vertically partitions all attributes of a given relation. DSM has excellent I/O behavior when the number of attributes touched in the query i...