43264 search results - page 8091 / 8653 » Comparing models of computation |
160
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PODS
2001
ACM
16 years 4 months ago
2001
ACM
We consider the complexity of join problems, focusing on equijoins, spatial-overlap joins, and set-containment joins. We use a graph pebbling model to characterize these joins com...
125
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PODS
2005
ACM
16 years 4 months ago
2005
ACM
Some promising recent schemes for XML access control employ encryption for implementing security policies on published data, avoiding data duplication. In this paper we study one ...
123
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PODS
2006
ACM
16 years 4 months ago
2006
ACM
The query equivalence problem has been studied extensively for set-semantics and, more recently, for bag-set semantics. However, SQL queries often combine set and bag-set semantic...
160
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ICSE
2005
IEEE-ACM
16 years 4 months ago
2005
IEEE-ACM
Research was conducted on using agile methods in software engineering education. This paper explores the perceptions of students from five different academic levels of agile pract...
112
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PERCOM
2008
ACM
16 years 4 months ago
2008
ACM
We describe an approach to automate certain highlevel implementation decisions in a pervasive application, allowing them to be postponed until run time. Our system enables a model...