2121 search results - page 78 / 425 » Indexing Incomplete Databases |
220
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ICDE
2003
IEEE
16 years 3 months ago
2003
IEEE
We are witnessing in recent years growing interest for location-dependent information services among mobile users. This paper examines the issue of processing locationdependent qu...
131
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SIGMOD
2003
ACM
16 years 2 months ago
2003
ACM
To facilitate queries over semi-structured data, various structural summaries have been proposed. Structural summaries are derived directly from the data and serve as indices for ...
100
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SSDBM
2008
IEEE
15 years 8 months ago
2008
IEEE
Bitmap indexes are known to be efficient for ad-hoc range queries that are common in data warehousing and scientific applications. However, they suffer from the curse of cardina...
106
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XSYM
2004
Springer
15 years 7 months ago
2004
Springer
XML indices are essential for efficiently processing XML queries which typically have predicates on both structures and values. Since the number of all possible structural and val...
122
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DEXAW
2005
IEEE
15 years 4 months ago
2005
IEEE
In this paper, we study semistructured data and indexes preserving inclusion constraints. A semistructured datum is modelled by multi-rooted edge-labeled directed graphs. We consi...