Ms. Olga V Dadykina Profile

Olga V Dadykina

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Proceedings Article | 20 February 2024 Paper

Development of an information system of geological monitoring indicators of subsoil use

Valery Dadykin, Olga Dadykina, Julia Sinyukova, Artem Yashchenko, Christina Pestrakova

Proceedings Volume 13065, 130650A (2024) https://doi.org/10.1117/12.3024921

KEYWORDS: Minerals, Mining, Raw materials, Fuzzy logic, Factor analysis, Chemical composition, Decision making, Analytical research, Systems modeling, Solids

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The problems of rational use of natural resources and subsoil, in particular, are in the sphere of constant attention both from state bodies and from subsoil using enterprises. The data about the subsoil is enlarged by conducting geological exploration, subsequent interpretation of their results, submission of reports and other accompanying documents to the relevant geological information funds. However, the accumulation of primary and interpreted geological information does not contribute to the formation of a unified knowledge base that could allow to prepare analytical information automatically to support management decision-making. To eliminate this problem, it is advisable to use an ontological approach. In this case it is connected with the construction of cause-effect relations between elements (entities) and filling the resulting ontological model with factual information about the geological indicators obtained as a result of the work carried out. The task of using automated information systems to assess the efficiency of subsoil areas is also becoming very relevant. This is due to the increasing role of expert information and analytical systems in the structure of software products used for analyzing the results of geological exploration and determining new priorities in the research of mineral resources of solid minerals and groundwater for the needs of the region. The decrease in the number of geologists in this field leads to the need to design a system of geological assessment of the prospects of subsoil areas based on an ontological approach. The application of ontology is aimed to reproduce the chain of decision-making by an expert, but in a new view based on associative relations and empirical rules.

Proceedings Article | 27 April 2023 Paper

Instructional aspects of ranking subsurface areas according to their prospects, based on the use of fuzzy logic

V. Dadykin, O. Dadykina

Proceedings Volume 12637, 126370K (2023) https://doi.org/10.1117/12.2680690

KEYWORDS: Fuzzy logic, Raw materials, Minerals, Fuzzy systems, Mining, Materials properties, MATLAB, Industrial applications, Visualization, Visual process modeling

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Currently, in financing cases concerning state-run mineral resources base reproduction, especially in terms of identifying forecast resources, and in some cases regarding the category of reserves C2, there is an urgent need to develop ranking techniques for subsurface allotments according to their prospects. In such situations, the use of fuzzy logic models will allow formalizing and automating integral estimation calculation of subsurface allotments for the purposes of their ranking. Therefore, the purpose of this work is to develop instructional aspects of ranking subsurface allotments according to prospects based on the use of fuzzy logic. Resulting from the application of this technique it was possible to perform an aggregated assessment of subsurface areas on the territory of the Bryansk region according to geological reports for the period of 2010-2020. The subsurface areas, being subsequently recognized as prospects, were introduced into the model with their expert assessments for this period of work. Thus, we have initiated a methodology for ranking subsurface areas according to their prospects based on the use of fuzzy logic. It provides for the use of the specified production rules to perform the ranking of subsurface allotments taking into account the prospects. Production rules should cover all possible combinations of expert assessments in confidential intervals. Besides, within the implementing techniques it is required to compare subsurface allotments in terms of fuzzy estimates and also clear mathematical sets. This operation is implemented programmatically (Mamdani algorithm) by performing sequential phasification – defasification operations in the Fuzzy logic component of the Matlab software product.

Proceedings Article | 27 April 2023 Paper

Methodological aspects of estimating the prospects of subsoil plots through ontological engineering

V. Dadykin, O. Dadykina, T. Geraschenkova, V. Skantsev

Proceedings Volume 12637, 1263716 (2023) https://doi.org/10.1117/12.2681311

KEYWORDS: Minerals, Engineering, Raw materials, Data modeling, Mining, Modeling, Mathematical modeling, Materials properties, Databases, Process modeling

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Estimating the prognostic potential is also based on evaluating the geological potential, taking into account the available geological and economic information on this territory and the existing need for relevant resources. Thus, to make a decision on investing in further exploration on promising subsoil areas, it is necessary to consider a significant number of factors and their corresponding indicators. In such situations, it is customary to use knowledge bases built upon ontological engineering. As a result, it becomes possible to implement the obtained ontological model having a set of geological and economic parameters for estimating expected resources with the integration of the mathematical apparatus of fuzzy logic and set theory. Thus, the authors have considered the methodological aspects of estimating the prospects of the subsoil plots through ontological engineering of geological exploration, taking into account their features, based on using a knowledge base containing a thesaurus of geological and economic indicators by the exploration process stages. The links of geological and economic indicators as part of the subject area thesaurus are determined in order to build an ontological model, which makes it possible to perform factorial economic analysis. The actual evaluation of indicators as part of the thesaurus of the geological and economic assessment of the geological exploration results allows one to characterise the state of the study object and to proceed to estimating the volume of mining commodity output, according to the requirements of the individual territory, region, state (taking into account the volume of exports and imports) of mineral raw materials.

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