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SIGMOD
2008
ACM
14 years 10 months ago
2008
ACM
There has been a significant amount of excitement and recent work on column-oriented database systems ("column-stores"). These database systems have been shown to perfor...
SIGMOD
2007
ACM
14 years 10 months ago
2007
ACM
Database queries are often exploratory and users often find their queries return too many answers, many of them irrelevant. Existing work either categorizes or ranks the results t...
SIGMOD
2007
ACM
14 years 10 months ago
2007
ACM
To compensate for the inherent impedance mismatch between the relational data model (tables of tuples) and XML (ordered, unranked trees), tree join algorithms have become the prev...
SIGMOD
2007
ACM
14 years 10 months ago
2007
ACM
Partial evaluation has recently proven an effective technique for evaluating Boolean XPath queries over a fragmented tree that is distributed over a number of sites. What left ope...
SIGMOD
2007
ACM
14 years 10 months ago
2007
ACM
With the exponential growth of biological sequence databases, it has become critical to develop effective techniques for storing, querying, and analyzing these massive data. Suffi...