Multidimensional quantification
Multidimensional quantification
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多维量化
DOI:
10.1007/bf02949809
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发表时间:
1953
影响因子:
1
通讯作者:
Chikio Hayashi
中科院分区:
文献类型:
--
作者:
Chikio Hayashi
The present paper is a continuation of the papers [1],[2], previously pub-]/shed, in which we treated some methods of quantification of qualitative data in multidimensional analysis and especially the use of quantification of qualitative patterns to secure the maximum success rate of prediction of phenomena fr,, m the statistical point of view. The important problem in multidimensional analysis is to devise the methods of quantification of complex phenomena (intercorrelated behaviour patterns of units in dynamic environments) and then the methods of classification of them. Quantification means that the patterns are categorized and given numerical values in order that they may be able to be treated as several indices,, and classification means a prediction of phenomena. The aim of multi~ dimensional quantification is to make numerical representation of intercorrelated patterns syuthetically to maximize the efficiency of classification (success rate of prediction). Quantification does not mean to find numerical values but to give them to the patterns from the operational point of view in the proper sense. In the present paper, the methods of quantification of qualitative patterns will be considered in case where an outside variable (reMized by the outside criterion) is given in the form af qualitative classification. In this case it is most important that we must devise the methods to fulfil the property of validity. Let us take a universe of n elements, each of which has, as a la~ e], behaviour patterns categorized by a survey method and is classified into only one clas~ by the definite outside criterion of (this is an outside variable). Here the outside criterion must be based on the absolute scale and must not change according t, what elements of universe are classified (judged). That is to say, J (O,)= J (Oj)= constant independent of i, j; i=~= j,~, j= l, 2,-.-, n where J (O~) represents symbolically the frame of criterion for the/-th element O, when it is classified (judged). It is our aim to predict to which class the element will belong in future which has a definite beheviour pattern at present, by the method of quantification using the past data.