Procedures for improvement of quality of diagnostic advisor built on binary classifiers
DOI:
https://doi.org/10.15587/1729-4061.2013.9129Keywords:
Binary classifiers, hemostasis, differential diagnosis, GMDHAbstract
The work aims to improve the quality of classification of diagnostic advisor on the example of the problem of differential diagnosis of mild forms of hemostasis, such as von Willebrand's disease, coagulopathy, deaggregating thrombocytopathy, combined pathology of hemostasis. To solve the problems we have compared the efficiency of diagnostic advisor, developed by the relaxation iterative algorithm GMDH according to two approaches. In the first variant, the system was developed on binary classifiers, built on the principle of "one against all"; in the second the diagnostic problem was solved by a single classifier for four classes. For this task the advantages of the first variant were shown. The further step was the improvement of the system by introduction of procedures for solving classifiers conflicts. With this purpose we proposed to design additional functions of classification on data sets with different combinations of samples of classes that must be differentiated: classification of each pair of diagnoses, classification of diagnosis from a couple of other diagnoses, classification of diagnoses in pairs. Thus, a multi-classification system is formed, where at each further level the conflicts left unsolved at lower levels, are solved. This approach should be applied while formulating a criterion of diagnostic system as "the maximum number of correct diagnosisReferences
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Copyright (c) 2014 Григорій Василійович Кіт, Володимир Анатолійович Павлов, Олександр Володимирович Павлов
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