منابع مشابه
Are Two Curves the Same?
We present an algorithm for answering the following fundamental question: Given two arbitrary (piecewise) polynomial curves, are they the same? This basic CAGD question is answered by first reducing the two curves into canonical irreducible forms. This is done by reversing the processes of knot refinement, degree raising, and composition. The two curves are then compared in their irreducible fo...
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متن کاملWhen are two algorithms the same?
People usually regard algorithms as more abstract than the programs that implement them. The natural way to formalize this idea is that algorithms are equivalence classes of programs with respect to a suitable equivalence relation. We argue that no such equivalence relation exists.
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In the area of workflow management, one is confronted with a large number of competing languages and the relations between them (e.g. relative expressiveness) are usually not clear. Moreover, even within the same language it is generally possible to express the same workflow in different ways, a feature known as variability. This paper aims at providing some of the formal groundwork for studyin...
متن کامل1 When are Two Games the Same ?
1 Logic and games: historical encounters Logic and games have had several encounters in history. One major factor in the emergence of logic in Antiquity was a systematic interest in the rules of argumentation, which have a clear game-like structure. Games were mathematized for the first time, one might say, in the17th century: when Pascal and Huygens based their idea of probability on betting o...
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ژورنال
عنوان ژورنال: Computer-Aided Design and Applications
سال: 2005
ISSN: 1686-4360
DOI: 10.1080/16864360.2005.10738356