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SIGMOD
2001
ACM
15 years 10 months ago
2001
ACM
Materialized views have been found to be very effective at speeding up queries, and are increasingly being supported by commercial databases and data warehouse systems. However, w...
CIKM
2009
Springer
15 years 4 months ago
2009
Springer
Well-designed indices can dramatically improve query performance. Including query workload information can produce indices that yield better overall throughput while balancing the...
SEMWEB
2009
Springer
15 years 4 months ago
2009
Springer
Abstract. To direct automated Web service composition, it is compelling to provide a template, workflow or scaffolding that dictates the ways in which services can be composed. I...
SIGUCCS
2009
ACM
15 years 4 months ago
2009
ACM
iTunes U is a free service from Apple that allows for the easy organization and distribution of content through iTunes. In the spring of 2008, Ithaca College signed a contract wit...
CHI
2000
ACM
15 years 2 months ago
2000
ACM
We can reliably build “second generation” intelligent computer tutors that are approximately half as effective as human tutors. This paper evaluates two interface enhancements...