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SIGMOD
2008
ACM
96views Database» more  SIGMOD 2008»
16 years 6 months ago
OLAP on sequence data
Many kinds of real-life data exhibit logical ordering among their data items and are thus sequential in nature. However, traditional online analytical processing (OLAP) systems an...
Eric Lo, Ben Kao, Wai-Shing Ho, Sau Dan Lee, Chun ...
SIGMOD
2007
ACM
114views Database» more  SIGMOD 2007»
16 years 6 months ago
Managing information quality in e-science: the qurator workbench
Data-intensive e-science applications often rely on third-party data found in public repositories, whose quality is largely unknown. Although scientists are aware that this uncert...
Alun D. Preece, Binling Jin, Paolo Missier, R. Mar...
SIGMOD
2007
ACM
181views Database» more  SIGMOD 2007»
16 years 6 months ago
Progressive and selective merge: computing top-k with ad-hoc ranking functions
The family of threshold algorithm (i.e., TA) has been widely studied for efficiently computing top-k queries. TA uses a sort-merge framework that assumes data lists are pre-sorted...
Dong Xin, Jiawei Han, Kevin Chen-Chuan Chang
PODS
2008
ACM
143views Database» more  PODS 2008»
16 years 6 months ago
XPath, transitive closure logic, and nested tree walking automata
We consider the navigational core of XPath, extended with two operators: the Kleene star for taking the transitive closure of path expressions, and a subtree relativisation operat...
Balder ten Cate, Luc Segoufin
ICSE
2003
IEEE-ACM
16 years 6 months ago
On the Uniformity of Software Evolution Patterns
Preparations for Y2K reminded the software engineering community of the extent to which long-lived software systems are embedded in our daily environments. As systems are maintain...
Evelyn J. Barry, Chris F. Kemerer, Sandra Slaughte...