DOI: 10.25136/2644-5522.2018.5.27626

Abstract: The subject of research is the approach to the allocation of resources in terms of possible destructive conditions.The object of the research is a model of decision-making processes of a distributional nature under the conditions of possible destructive influences. The authors consider the issues of modeling the processes of resource flow distribution under the conditions of possible undesirable effects. It is shown that the use of relative fuzzy estimates of resource transfer routes is more expedient than modeling the entire resource allocation area in terms of the time complexity of the decision-making process, since, based on statistical and expert assessments, route preferences can be quickly determined from the point of view of guaranteed resource transfer under destructive impacts. The research method is based on the use of set theory, fuzzy logic, evolutionary and immune approaches. The use of fuzzy preference relations reduces the time to build a model, and the use of evolutionary and immune methods to speed up the search for a solution. The main conclusion of the study is the possibility of using relative fuzzy estimates of the preferences of the used routes when organizing the allocation of resources. An algorithm for the allocation of resources in the context of destructive influences is proposed, a distinctive feature of which is the use of information about previously implemented resource allocations in the formation of a set of initial solutions. Verification of the solutions obtained is supposed to be carried out using the method of negative selection - one of the methods of modeling the immune system. Modification of existing solutions is advisable to produce, for example, using the methods of evolutionary modeling.

DOI: 10.7256/2306-4196.2016.5.19885

Abstract: The object of research is the model of artificial immune system. Subject of the research is providing a method of constructing a fuzzy decoder. The authors proposed to use fuzzy membership function as the decoders. This functions describes the relevance of a controlled parameter to a critical situation. Using such an approach based on fuzzy decoders allows to move from binary quantitative classification to fuzzy qualitative estimates. The article present an example o f construction of a decoder for fuzzy term “semiperimeter length of L, describing a fragment of the designed product, should be no more than 0.7 nm”. On the basis of the function CON(μ1(L)), describing fuzzy matching condition “very close to 0.7 nm” the authors build a function μ5(L), describing fuzzy matching condition “a little less than 0.7 nm”. Fuzzy decoder for conformity assessment interval is based on the given interval membership function. The authors give a graph of a μ7 decoder  function semiperimeter on the length L, describing the belonging to “semiperimeter desired length from 0.55 to 0.7 nm” condition. By analogy with the conditions “very close to 0.7 nm” and “slightly close to 0.7 nm” it is possible to determine a membership functions “very in range from 0.55 to 0.7 nm” and “slightly in range from 0.55 to 0.7 nm”. The research method is based on the construction of fuzzy decoders describing the undesirable state of the computational process. Fuzziness is described by the membership function. The novelty of the research is in getting fuzzy decoders receptive to fuzzy commands. Using the corresponding fuzzy membership function μ decoder it is possible adjust the process of estimating the degree of closeness of the controlled parameter to a critical situation. Applying CON and DIL functions to the decoder functions allows to change their susceptibility on test data from 20-30% up to 200% -300%.