A non-parametric and scale-independent method for cluster analysis - I. The univariate case
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0 v 1 3 1 A ug 1 99 5 A non - parametric and scale - independent method for cluster analysis II : the multivariate case
A non-parametric and scale-independent method for cluster analysis II: the multivariate case Received ; accepted – 2 – ABSTRACT A general method is described for detecting and analysing galaxy systems. The multivariate geometrical structure of the sample is studied by using an extension of the method which we introduced in a previous paper. The method is based on an estimate of the probability ...
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15 صفحه اولStochastic Non-Parametric Frontier Analysis
In this paper we develop an approach that synthesizes the best features of the two main methods in the estimation of production efficiency. Specically, our approach first allows for statistical noise, similar to Stochastic frontier analysis, and second, it allows modeling multiple-inputs-multiple-outputs technologies without imposing parametric assumptions on production relationship, similar to...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1993
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/265.3.706