191 search results - page 18 / 39 » Extending the Relational Algebra to Support Transaction Time |
ECRA
2007
14 years 9 months ago
2007
Micro-payment systems have become popular in recent times as the desire to support low-value, high-volume transactions of text, music, clip-art, video and other media has increase...
ICDE
2007
IEEE
15 years 1 months ago
2007
IEEE
In this paper, we propose a simple and flexible execution model that (i) supports a wide spectrum of alternative optimization and execution strategies and their mixtures, (ii) pro...
65
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WSC
2004
14 years 11 months ago
2004
Recursive simulation is the technique of having simulated decisionmakers themselves use simulation to inform their decisionmaking. Issues of efficiency require that the recursive ...
EMSOFT
2004
Springer
15 years 3 months ago
2004
Springer
We present an extension of a mathematical framework proposed by the authors to deal with the composition of heterogeneous reactive systems. Our extended framework encompasses dive...
157
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VLDB
2008
ACM
15 years 10 months ago
2008
ACM
This paper studies aggregate search in transaction time databases. Specifically, each object in such a database can be modeled as a horizontal segment, whose y-projection is its s...