An Introduction to Association Analysis
نویسنده
چکیده
Giyen a set of individuals (be they people, paddocks, or pumpkins) each possessing a number of attributes, one can arbitrarily classify them into a number of related but distinct non-overlapping groups. However, there are two major difficullies: effecting the classification and justifying it before one's colleagues. In ecological circles one has no trouble in finding sets of more than a thousand individuals to classify or at least to put inlo some kind of rational order, and if each of these indiyiduals has 50 or so attributes this lask is not trivial even if a computer is to be used to do it. Association analysis is one of the techniques which, coming to fiower at the beginning of this decade, haye enabled the taxonomist to handle large arrays of taxonomic data, and lhe name has to some extent become a generic term for a whole series of variations on the theme of this aspect of numerical taxonomy. In this paper I hope to describe them briefly, without the aid of mathematics, and to give a computer scientist's view of their uses and advantages.
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