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GROUP
1999
ACM
15 years 11 months ago
From description to requirements: an activity theoretic perspective
This paper demonstrates how activity theoretic concepts can be used in conjunction with an ethnographically informed approach to derive requirements on a work situation. We presen...
Phil Turner, Susan Turner, Julie Horton
CONTEXT
1999
Springer
15 years 11 months ago
The Formal Structure of Ecological Contexts
This paper presents the outline of a formal ontology of contexts. More specifically, it deals with the ontology of ecological contexts (niches, habitats, environments, ambients) an...
Barry Smith, Achille C. Varzi
DOOD
1993
Springer
135views Database» more  DOOD 1993»
15 years 10 months ago
A Deductive and Typed Object-Oriented Language
In this paper we introduce a logical query language extended with object-oriented typing facilities. This language, called DTL (from DataTypeLog), can be seen as an extension of Da...
René Bal, Herman Balsters
AB
2007
Springer
15 years 10 months ago
Reduction of Algebraic Parametric Systems by Rectification of Their Affine Expanded Lie Symmetries
Lie group theory states that knowledge of a m-parameters solvable group of symmetries of a system of ordinary differential equations allows to reduce by m the number of equations. ...
Alexandre Sedoglavic
CSR
2007
Springer
15 years 10 months ago
On Empirical Meaning of Randomness with Respect to a Real Parameter
We study the empirical meaning of randomness with respect to a family of probability distributions P, where is a real parameter, using algorithmic randomness theory. In the case w...
Vladimir V. V'yugin