2063 search results - page 149 / 413 » Containment of Aggregate Queries |
175
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DLOG
2006
15 years 6 months ago
2006
The novel context of accessing and querying large data repositories through ontologies that are formalized in terms of expressive DLs requires on the one hand to consider query an...
125
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DEXAW
2010
IEEE
15 years 5 months ago
2010
IEEE
Given a set of keywords, we find a maximum Web query (containing the most keywords possible) that respects userdefined bounds on the number of returned hits. We assume a real-world...
155
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ICDE
2011
IEEE
14 years 8 months ago
2011
IEEE
—An important facility to aid keyword search on XML data is suggesting alternative queries when user queries contain typographical errors. Query suggestion thus can improve users...
121
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BNCOD
2007
15 years 6 months ago
2007
We present a novel framework for indexing and searching schema-less XML documents based on concise summaries of their structural and textual content. Our search query language is X...
145
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DOLAP
2003
ACM
15 years 9 months ago
2003
ACM
The data cube operator exemplifies two of the most important aspects of OLAP queries: aggregation and dimension hierarchies. In earlier work we presented Dwarf, a highly compress...