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10.3390/healthcare9020196

http://scihub22266oqcxt.onion/10.3390/healthcare9020196
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33578902!7916684!33578902
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suck abstract from ncbi


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pmid33578902      Healthcare+(Basel) 2021 ; 9 (2): ä
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  • A Novel Method for a COVID-19 Classification of Countries Based on an Intelligent Fuzzy Fractal Approach #MMPMID33578902
  • Castillo O; Melin P
  • Healthcare (Basel) 2021[Feb]; 9 (2): ä PMID33578902show ga
  • We outline in this article a hybrid intelligent fuzzy fractal approach for classification of countries based on a mixture of fractal theoretical concepts and fuzzy logic mathematical constructs. The mathematical definition of the fractal dimension provides a way to estimate the complexity of the non-linear dynamic behavior exhibited by the time series of the countries. Fuzzy logic offers a way to represent and handle the inherent uncertainty of the classification problem. The hybrid intelligent approach is composed of a fuzzy system formed by a set of fuzzy rules that uses the fractal dimensions of the data as inputs and produce as a final output the classification of countries. The hybrid approach calculations are based on the COVID-19 data of confirmed and death cases. The main contribution is the proposed hybrid approach composed of the fractal dimension definition and fuzzy logic concepts for achieving an accurate classification of countries based on the complexity of the COVID-19 time series data. Publicly available datasets of 11 countries have been the basis to construct the fuzzy system and 15 different countries were considered in the validation of the proposed classification approach. Simulation results show that a classification accuracy over 93% can be achieved, which can be considered good for this complex problem.
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