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AMAI
2006
Springer
15 years 6 months ago
Functional and multivalued dependencies in nested databases generated by record and list constructor
tor. In order to capture different data models at a time, an abstract algebraic approach based on nested attributes is taken. The presence of the list constructor calls for a new i...
Sven Hartmann, Sebastian Link, Klaus-Dieter Schewe
SIGMOD
2007
ACM
120views Database» more  SIGMOD 2007»
16 years 6 months ago
Xpath on steroids: exploiting relational engines for xpath performance
A lot of research has been conducted by the database community on methods and techniques for efficient XPath processing, with great success. Despite the progress made, significant...
Haris Georgiadis, Vasilis Vassalos
NAR
2010
107views more  NAR 2010»
15 years 1 months ago
FlyTF: improved annotation and enhanced functionality of the Drosophila transcription factor database
FlyTF (http://www.flytf.org) is a database of computationally predicted and/or experimentally verified site-specific transcription factors (TFs) in the fruit fly Drosophila melano...
Ulrike Pfreundt, Daniel P. James, Susan Tweedie, D...
WWW
2008
ACM
16 years 7 months ago
An initial investigation on evaluating semantic web instance data
Many emerging semantic web applications include ontologies from one set of authors and instance data from another (often much larger) set of authors. Often ontologies are reused a...
Li Ding, Jiao Tao, Deborah L. McGuinness
FOCS
2008
IEEE
16 years 29 days ago
Size Bounds and Query Plans for Relational Joins
Relational joins are at the core of relational algebra, which in turn is the core of the standard database query language SQL. As their evaluation is expensive and very often domi...
Albert Atserias, Martin Grohe, Dániel Marx