22358 search results - page 4345 / 4472 » Software Performance Engineering |
193
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VLDB
2007
ACM
16 years 2 months ago
2007
ACM
A "plan diagram" is a pictorial enumeration of the execution plan choices of a database query optimizer over the relational selectivity space. We have shown recently tha...
224
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SIGMOD
2009
ACM
16 years 2 months ago
2009
ACM
An approximate search query on a collection of strings finds those strings in the collection that are similar to a given query string, where similarity is defined using a given si...
222
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SIGMOD
2009
ACM
16 years 2 months ago
2009
ACM
Research has investigated mappings among data sources under two perspectives. On one side, there are studies of practical tools for schema mapping generation; these focus on algor...
188
Voted
SIGMOD
2007
ACM
16 years 2 months ago
2007
ACM
This paper investigates a class of transform queries proposed by XQuery Update [6]. A transform query is defined in terms of XML update syntax. When posed on an XML tree T, it ret...
192
Voted
SIGMOD
2006
ACM
16 years 2 months ago
2006
ACM
Real-world data -- especially when generated by distributed measurement infrastructures such as sensor networks -- tends to be incomplete, imprecise, and erroneous, making it impo...