ON AN APPROACH FOR SUPPORTING QUERIES BUILT IN NATURAL LANGUAGE
The Weibull distribution is frequently used to statistical model for survival, reliability, wind speed, digital image features and other data. There exist about dozen popular methods for estimating the Weibull distribution parameters. Some of them are based on the method of moment estimation (MME) and its modifications. However, in spite of algorithmic simplicity of related procedures, there arises necessity of creating more fastacting methods to avoid numerous calculations of Gamma function and sequential approximation process. In this paper, through data analysis and simulation studies, the following three methods of estimation are discussed and compared: a direct method of estimation by solving the nonlinear equation of MME, the method of estimating by the empirical formula representing the power function of 6 Comparative study of three approaches for estimating the weibull distribution parameters variation coefficient, and the method of polinomial approximation of the dependence of form parameter estimate on variation coefficient in various intervals of its value