The Additive Input-Doubling Method Based on the SVR with Nonlinear Kernels: Small Data Approach

• Published in: Symmetry (Basel) 2021-04, Vol.13 (4), p.612
• Main Authors: Izonin, Ivan, Tkachenko, Roman, Shakhovska, Nataliya, Lotoshynska, Nataliia
• Format: Article
• Language: English
• Subjects: Accuracy; Algorithms; Artificial intelligence; Data augmentation; Datasets; Design; input-doubling method; Machine learning; Materials science; Methods; Neural networks; nonlinear kernels; short dataset; small data approach; SVR; Training
• ISSN: 2073-8994; 2073-8994
• DOI: 10.3390/sym13040612

The problem of effective intellectual analysis in the case of handling short datasets is topical in various application areas. Such problems arise in medicine, economics, materials science, science, etc. This paper deals with a new additive input-doubling method designed by the authors for processing short and very short datasets. The main steps of the method should include the procedure of data augmentation within the existing dataset both in rows and columns (without training), the use of nonlinear SVR to implement the training procedure, and the formation of the result based on the author’s procedure. The authors show that the developed data augmentation procedure corresponds to the principles of axial symmetry. The training and application procedures of the method developed are described in detail, and two algorithmic implementations are presented. The optimal parameters of the method operation were selected experimentally. The efficiency of its work during the processing of short datasets for solving the prediction task was established experimentally by comparison with other methods of this class. The highest prediction accuracy based on both proposed algorithmic implementations of a method among all of the investigated ones was defined. The main areas of application of the developed method are described, and its shortcomings and prospects of further research are given.