Application of a-technology to clarify agreed systems of experts’ advantages
Authors: Reva O. M. , Kamyshyn V. V. , Borsuk S. P. , Yarotskyi S. V. , Sahanovska L. A. 
Published: October 2023

It is expedient to study the professional activity of an expert as a person making a decision through the prism of the influence of the human factor. Among the relevant indicators of such influence, systems of advantages (individual and group) are identified and studied on the indicators and characteristics of objects of expertise. Under the system of advantages, we mean an ordered series of indicators and characteristics of the studied objects of expertise (in the context of our research, features of investment attractiveness, the spectrum of which covers n = 18 features): from more weighty, significant, attractive, etc., to less weighty. The use of indicators of the significance of these features, especially in combination with the determination of their expressiveness in a particular object, contributes, on the one hand, to the solution of the problem of obtaining an integral assessment of the degree of its investment attractiveness, which and only to which the system property of emergence is inherent, and on the other hand, — establishing “compromises” on this expressiveness. Both tasks are multi-criteria, with the first being one-step and the second being multi-step.
A more popular method for constructing individual advantage systems is pairwise comparison and normative determination of a part of the total value of the compared alternatives. Group preference systems are usually constructed by applying group decision strategies such as summing and averaging ranks. However, the practice of constructing systems of preferences in the ordering scale is given in a certain way, measurements are “loaded”, since we are talking about a linear change in ranks. The “fineness” and non-linearity of measurements should be ensured by the normalized weight coefficients of features. The definition of these coefficients is related to one of the methods for constructing personal preference systems. measurements.
Based on the obvious compilation of ranks of 18 features of the investment attractiveness of objects of expertise, including “related”, and using the mathematical method of prioritization, the required coefficients are established. The acceptability of the results of the third iteration of the method is substantiated, since, on the one hand, in this case, the requirement for the non-linearity of these coefficients is really satisfied, and on the other hand, the proper accuracy of calculations is ensured.
m = 90 specialists involved in conducting various examinations at the SSI “UkrISTEI” took part in the research. The results of their tests (individual systems of advantages on the spectrum of features of the investment attractiveness of objects of expertise) were initially processed in order to identify and reject marginal thoughts, as well as eliminate “the systematic error of the survivor”. From the initial sample of subjects, four subgroups were identified, in which the coherence of group thoughts satisfies the spectrum of system-information criteria of coherence at a high level of significance a = 1 %. The basic system of advantages is substantiated, where the ranks in the individual preference systems of its members are replaced by normalized weight coefficients. An almost absolute (significantly greater than 0,9) agreement of the obtained a-group system of advantages with the basic and its optimized versions is determined. The ways of further development of a-technology of expert research are outlined.