191 search results - page 12 / 39 » Extending the Relational Algebra to Support Transaction Time |
107
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TKDE
2012
13 years 20 hour ago
2012
—If past versions of XML documents are retained, what of the various integrity constraints defined in XML Schema on those documents? This paper describes how to interpret such c...
128
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DISCO
1993
15 years 1 months ago
1993
ObjectMath is a high-level programming environment and modeling language for scientific computing which supports variants and graphical browsing in the environment and integrates o...
WSCG
2000
14 years 11 months ago
2000
This paper presents an immersive virtual environment which allows the user to virtually explore and experience special relativity, including phenomena such as Lorentz contraction,...
JAR
2006
14 years 9 months ago
2006
We describe an algorithm for deciding the first-order multisorted theory BAPA, which combines 1) Boolean algebras of sets of uninterpreted elements (BA) and 2) Presburger arithmeti...
ISR
2010
14 years 8 months ago
2010
We study how electronic markets that facilitate broader inter-firm transactions affect the vertical scope of emerging IT-enabled extended enterprises. We do so by modeling firms...