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SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
We provide a concise yet complete formal definition of the semantics of XPath 1 and summarize efficient algorithms for processing queries in this language. Our presentation is int...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
In Spring 2003, Joe Hellerstein at Berkeley and Natassa Ailamaki at CMU collaborated in designing and running parallel editions of an undergraduate database course that exposed st...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
Literature on information integration across databases tacitly assumes that the data in each database can be revealed to the other databases. However, there is an increasing need ...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
Decision-support applications generate queries with complex predicates. We show how the factorization of complex query expressions exposes significant opportunities for exploiting...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
Traditional databases store sets of relatively static records with no pre-defined notion of time, unless timestamp attributes are explicitly added. While this model adequately rep...