a new method is developed for a fast identification of the stability situation of industrial processes. the proposed method includes two factor ratios of the control constants for the upper and lower control limits to process these constants. an indication ratio is then defined as the ratio of the maximum data range value to the difference between the maximum and average values for individual d...

background: in medical research, dichotomisation of continuous variables is a widespread use approach. however, it has been argued that dichotomisation might be waste of information. the aim of this paper is to review the main methods to dichotomise continuous data, to address practical issues around dichotomisation methods, and to investigate whether dichotomisation is always a bad idea. metho...

Statistical models of real world data typically involve continuous probability distributions such as normal, Laplace, or exponential distributions. Such are supported by many probabilistic modelling formalisms, including database systems. Yet, the traditional theoretical framework databases focuses entirely on finite databases. Only recently, we set out to develop mathematical theory infinite T...

We give many examples of bivariate nonseparable compactly supported orthonormal wavelets whose scaling functions are supported over [0,3]x[0,3]. The Holder continuity properties of these wavelets are studied.