منابع مشابه
Remarks on Simon's Comments
Herbert Simon has commented on my article, to which I have been asked to respond. This sequence of events is slightly misleading: It suggests the familiar article-critique-rebuttal pattern, whereas I believe that, in fact, Simon and I are in substantial agreement about the nature of causation and its formal model. A few points of disagreement do remain, though, and my purpose in these remarks w...
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We investigate the relationships between tolerance relations, equivalence relations, and ultrametrics. The set of spheres associated to an ultrametric space has a tree structure that reflects a hierarchy on the set of equivalences associated to that space. We show that every ultrametric defined on a finite space is a linear combination of binary ultrametric and we introduce the notion of ultram...
متن کاملReviewers ' Comments : Reviewer # 1 ( Remarks
I wondered whether this strategy switch (go central, go toward the target) was a conscious, cognitive thing (seems likely), but I found it interesting in this regard that the use of the strategy varied with speed even in the slow condition. In our paper on this (cited here), the switch is continuous depending on the priors; here it's treated somewhat like a binary switch even though that seems ...
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We apply techniques that originate in the analysis of market basket data sets to the study of frequent trajectories in graphs. Trajectories are defined as simple paths through a directed graph, and we put forth some definitions and observations about the calculation of supports of paths in this context. A simple algorithm for calculating path supports is introduced and analyzed, but we explore ...
متن کاملSeveral remarks on the metric space of genetic codes
A genetic code, the mapping from trinucleotide codons to amino acids, can be viewed as a partition on the set of 64 codons. A small set of non-standard genetic codes is known, and these codes can be mathematically compared by their partitions of the codon set. To measure distances between set partitions, this study defines a parameterised family of metric functions that includes Shannon entropy...
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ژورنال
عنوان ژورنال: Europhysics Letters (EPL)
سال: 1999
ISSN: 0295-5075,1286-4854
DOI: 10.1209/epl/i1999-00384-1