Pub Date : 2019-09-01DOI: 10.1109/CAOL46282.2019.9019496
F. Mirzade
In this paper, we consider theory of self-organization of periodic coupled temperature and strain (TS) fields on surfaces of anisotropic (transversely isotropic) solids irradiated by laser pulses. Laser-induced thermal field is treated as consisting of "atomic point defects" of a crystalline lattice - thermal phonons. The self-organization of TS structures occurs due to strain-thermal instability associated with a strain-induced flux of thermal phonons. Using the non-local forms of constitutive equations, a synergetic model of the process is formulated and substantiated, based on self-consistent dynamic equations for temperature and atomic displacements fields of the elastic continuum. Dispersion equation for instability is obtained and analyzed. It is observed that the length of non-local defect-atom interaction has a significant effect on the characteristics (growth rate, period) emerging strain-temperature surface structures. The period of these structures is proportional to the intrinsic length parameter and has a nanometer scale
{"title":"On the self-organization of coupled temperature-strain surface periodic structures on an anisotropic laser-excited half space","authors":"F. Mirzade","doi":"10.1109/CAOL46282.2019.9019496","DOIUrl":"https://doi.org/10.1109/CAOL46282.2019.9019496","url":null,"abstract":"In this paper, we consider theory of self-organization of periodic coupled temperature and strain (TS) fields on surfaces of anisotropic (transversely isotropic) solids irradiated by laser pulses. Laser-induced thermal field is treated as consisting of \"atomic point defects\" of a crystalline lattice - thermal phonons. The self-organization of TS structures occurs due to strain-thermal instability associated with a strain-induced flux of thermal phonons. Using the non-local forms of constitutive equations, a synergetic model of the process is formulated and substantiated, based on self-consistent dynamic equations for temperature and atomic displacements fields of the elastic continuum. Dispersion equation for instability is obtained and analyzed. It is observed that the length of non-local defect-atom interaction has a significant effect on the characteristics (growth rate, period) emerging strain-temperature surface structures. The period of these structures is proportional to the intrinsic length parameter and has a nanometer scale","PeriodicalId":308704,"journal":{"name":"2019 IEEE 8th International Conference on Advanced Optoelectronics and Lasers (CAOL)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124244207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-01DOI: 10.1109/CAOL46282.2019.9019518
A. Dubov, V. V. Dubov, S. Roshchupkin
The contemporary theoretical research focuses on the kinematics of the resonant spontaneous bremsstrahlung of ultrarelativistic electrons for the case of particles scattering on a nucleus in the presence of the external laser field. The energy spectrum of the observable electrons represents considerable magnitude gradation. The resonant state determines the emersion of the intermediate particle into the real. Therefore, the aftermath of the transition realizes the splitting of the second order process with accordance to the fine structure into two subsequent first order processes: the laser-assisted Mott scattering of an electron on a nucleus and the laser-stimulated Compton effects. Additionally, with the alteration of the combinational sequence of the described mechanisms the phenomenon indicates two possible reaction channels referring the Compton or Mott procedures to initiate the interaction. Furthermore, the evaluation of the system illustrates the essential dependency of the resonant frequency on the channel selection. The computational experiments demonstrate the linear specification of the resonant frequency by the emission angle of the spontaneous photon in the compound with Compton occurrence to develop originally in contrast to the option of the Mott appearance initiation to produce three various values for the resonant frequency level. In conclusion, the investigation calculates the differential cross sections of the resonance in comparison to the standard cross section estimated in the absence of the external field. Substantial quantity of scientific facilities with profile in pulsed laser radiation (SLAC, FAIR, XFEL, ELI, XCELS) may experimentally verify the project examination.
{"title":"Spontaneous bremsstrahlung of ultrarelativistic electrons within the resonant conditions in the field of a nucleus and external electromagnetic field","authors":"A. Dubov, V. V. Dubov, S. Roshchupkin","doi":"10.1109/CAOL46282.2019.9019518","DOIUrl":"https://doi.org/10.1109/CAOL46282.2019.9019518","url":null,"abstract":"The contemporary theoretical research focuses on the kinematics of the resonant spontaneous bremsstrahlung of ultrarelativistic electrons for the case of particles scattering on a nucleus in the presence of the external laser field. The energy spectrum of the observable electrons represents considerable magnitude gradation. The resonant state determines the emersion of the intermediate particle into the real. Therefore, the aftermath of the transition realizes the splitting of the second order process with accordance to the fine structure into two subsequent first order processes: the laser-assisted Mott scattering of an electron on a nucleus and the laser-stimulated Compton effects. Additionally, with the alteration of the combinational sequence of the described mechanisms the phenomenon indicates two possible reaction channels referring the Compton or Mott procedures to initiate the interaction. Furthermore, the evaluation of the system illustrates the essential dependency of the resonant frequency on the channel selection. The computational experiments demonstrate the linear specification of the resonant frequency by the emission angle of the spontaneous photon in the compound with Compton occurrence to develop originally in contrast to the option of the Mott appearance initiation to produce three various values for the resonant frequency level. In conclusion, the investigation calculates the differential cross sections of the resonance in comparison to the standard cross section estimated in the absence of the external field. Substantial quantity of scientific facilities with profile in pulsed laser radiation (SLAC, FAIR, XFEL, ELI, XCELS) may experimentally verify the project examination.","PeriodicalId":308704,"journal":{"name":"2019 IEEE 8th International Conference on Advanced Optoelectronics and Lasers (CAOL)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126160833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-01DOI: 10.1109/CAOL46282.2019.9019439
Yu. S. Kurskoy, O. Hnatenko, Y. Machekhin, M. V. Neofinyy
The research paper presents a model for studying both the parameters and dynamics of laser light as a nonlinear dynamic system. The model provides for the measurement of the values of physical quantities by non-linear metrology methods and the analysis of the research findings with topological tools. The model is based on the assumption of interval values of the measured values and the possibility of changing the stationary dynamics into the random one. The model contains an experiment scheme and a procedure for evaluating measurement results. The peculiarity of the model lies in its systemic approach and suitability for measuring and researching stationary and chaotic modes. The model provides for the measurement of the emission parameter values intervals in various modes, of their stability values and time series prediction. Classification of the system dynamics is performed using the fractal dimension. The model can be used both to ensure the stability of the laser light parameters, and to obtain and control random emission.
{"title":"Topological Model of Laser Emission Parameters Research","authors":"Yu. S. Kurskoy, O. Hnatenko, Y. Machekhin, M. V. Neofinyy","doi":"10.1109/CAOL46282.2019.9019439","DOIUrl":"https://doi.org/10.1109/CAOL46282.2019.9019439","url":null,"abstract":"The research paper presents a model for studying both the parameters and dynamics of laser light as a nonlinear dynamic system. The model provides for the measurement of the values of physical quantities by non-linear metrology methods and the analysis of the research findings with topological tools. The model is based on the assumption of interval values of the measured values and the possibility of changing the stationary dynamics into the random one. The model contains an experiment scheme and a procedure for evaluating measurement results. The peculiarity of the model lies in its systemic approach and suitability for measuring and researching stationary and chaotic modes. The model provides for the measurement of the emission parameter values intervals in various modes, of their stability values and time series prediction. Classification of the system dynamics is performed using the fractal dimension. The model can be used both to ensure the stability of the laser light parameters, and to obtain and control random emission.","PeriodicalId":308704,"journal":{"name":"2019 IEEE 8th International Conference on Advanced Optoelectronics and Lasers (CAOL)","volume":"197 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125865005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-01DOI: 10.1109/CAOL46282.2019.9019531
Valerii V. Semenets, M. Neofitnyy, Y. Machekhin, O. Hnatenko, V. I. Zarytskyi, S. Gulak
The development of a modern laser system for recording optics is presented in this research paper. Studying optical components for designing this system by various methods, by calculated methods and by a method of using modern modeling package Zemax, was conducted. The results of the calculations and simulation, which led to the preliminary design of the laser system of optics registration, coincide.
{"title":"Laser system for recording optics","authors":"Valerii V. Semenets, M. Neofitnyy, Y. Machekhin, O. Hnatenko, V. I. Zarytskyi, S. Gulak","doi":"10.1109/CAOL46282.2019.9019531","DOIUrl":"https://doi.org/10.1109/CAOL46282.2019.9019531","url":null,"abstract":"The development of a modern laser system for recording optics is presented in this research paper. Studying optical components for designing this system by various methods, by calculated methods and by a method of using modern modeling package Zemax, was conducted. The results of the calculations and simulation, which led to the preliminary design of the laser system of optics registration, coincide.","PeriodicalId":308704,"journal":{"name":"2019 IEEE 8th International Conference on Advanced Optoelectronics and Lasers (CAOL)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130119999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-01DOI: 10.1109/CAOL46282.2019.9019539
R. Trishch, O. Maletska, H. Hrinchenko, S. Artiukh, V. Burdeina, N. Antonenko
The implementation of ISO/IEC 17025:2017 is an important step in setting requirements for measuring, taking into account the requirements of many international documents that contain requirements for equipment and techniques of test and measurement.An important factor in implementing the requirements of this standard in practice is to establish the suitability for application of test methods developed by the laboratory. The purpose of validation of the method is to check the possibility of obtaining a reliable result of measurements with the required accuracy during the testing of products. In order to obtain reliable measurement results in these techniques, it is important to correctly establish the requirements for measuring equipment, test conditions, the sequence of measuring operations and requirements for specialists. The fulfillment of these requirements makes it possible to obtain a reliable result with the necessary accuracy.Therefore, during the validation of the methods it is important to carry out the metrological confirmation of the used measuring equipment of the measured task. Also during the development of techniques it is important to choose such an indicator of accuracy of measurements, which would help to obtain a reliable result. This edition of the standard proposes to standardize and evaluate the accuracy of the measurement result not only in uncertainty of measurements, but also in other indicators of accuracy.This article presents the results of the analysis of the requirements for the content of the methods and validation of such factors as the requirements for the test and measuring equipment and the expediency of using different measurement accuracy indicators.The implementation of ISO/IEC 17025:2017 is an important step in setting requirements for measuring, taking into account the requirements of many international documents that contain requirements for equipment and techniques of test and measurement.
{"title":"Development and validation of measurement techniques according to ISO/IEC 17025:2017","authors":"R. Trishch, O. Maletska, H. Hrinchenko, S. Artiukh, V. Burdeina, N. Antonenko","doi":"10.1109/CAOL46282.2019.9019539","DOIUrl":"https://doi.org/10.1109/CAOL46282.2019.9019539","url":null,"abstract":"The implementation of ISO/IEC 17025:2017 is an important step in setting requirements for measuring, taking into account the requirements of many international documents that contain requirements for equipment and techniques of test and measurement.An important factor in implementing the requirements of this standard in practice is to establish the suitability for application of test methods developed by the laboratory. The purpose of validation of the method is to check the possibility of obtaining a reliable result of measurements with the required accuracy during the testing of products. In order to obtain reliable measurement results in these techniques, it is important to correctly establish the requirements for measuring equipment, test conditions, the sequence of measuring operations and requirements for specialists. The fulfillment of these requirements makes it possible to obtain a reliable result with the necessary accuracy.Therefore, during the validation of the methods it is important to carry out the metrological confirmation of the used measuring equipment of the measured task. Also during the development of techniques it is important to choose such an indicator of accuracy of measurements, which would help to obtain a reliable result. This edition of the standard proposes to standardize and evaluate the accuracy of the measurement result not only in uncertainty of measurements, but also in other indicators of accuracy.This article presents the results of the analysis of the requirements for the content of the methods and validation of such factors as the requirements for the test and measuring equipment and the expediency of using different measurement accuracy indicators.The implementation of ISO/IEC 17025:2017 is an important step in setting requirements for measuring, taking into account the requirements of many international documents that contain requirements for equipment and techniques of test and measurement.","PeriodicalId":308704,"journal":{"name":"2019 IEEE 8th International Conference on Advanced Optoelectronics and Lasers (CAOL)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128394949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-01DOI: 10.1109/CAOL46282.2019.9019412
A. Ivanov, A. Sitkevich, S. Vasiliev
It is shown that in the course of laser processing with radiation flux density ~106 W/cm–2 in the external electric field with different polarity varying from 0 to 106 V/m-1 the change in the evolution features of the plasma torch at the surface of some metals (Cu, Al, Pb) at early stages is quantitative rather than qualitative. At the same time the characteristic size of the target material droplets carried out from the irradiated zone, becomes by several times smaller as the amplitude of the external electric field strength grows, independently of its polarity.
{"title":"Generation of particles during laser treating of metal in external electric field","authors":"A. Ivanov, A. Sitkevich, S. Vasiliev","doi":"10.1109/CAOL46282.2019.9019412","DOIUrl":"https://doi.org/10.1109/CAOL46282.2019.9019412","url":null,"abstract":"It is shown that in the course of laser processing with radiation flux density ~106 W/cm–2 in the external electric field with different polarity varying from 0 to 106 V/m-1 the change in the evolution features of the plasma torch at the surface of some metals (Cu, Al, Pb) at early stages is quantitative rather than qualitative. At the same time the characteristic size of the target material droplets carried out from the irradiated zone, becomes by several times smaller as the amplitude of the external electric field strength grows, independently of its polarity.","PeriodicalId":308704,"journal":{"name":"2019 IEEE 8th International Conference on Advanced Optoelectronics and Lasers (CAOL)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131358731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-01DOI: 10.1109/CAOL46282.2019.9019522
A. Girich, A. Kharchenko, S. Tarapov
We numerically investigate the spectral properties of multi-periodic metamaterials of various configurations (the planar double-periodic photonic crystal and the bulk double-periodic magnetophotonic crystal) in the frequency range 15-45 GHz. In the first part of this paper we describe investigation of structure of the planar double periodic photonic crystal (PDPPC) which consists of two planar photonic crystals with large and small periods. A PDPPC unit cell consists of a series-connected narrow and wide segments of a microstrip transmission line. In the second part of this paper we will discuss results of investigation of a double-periodic magnetophotonic crystal (DPMPC) which consists of 3 unit cells. Each cell consists of periodically located 9 dielectric layers of quartz and teflon. On the border of the cell there is one layer of ferrite.We showed that both for a PDPPC and for a DPMPC in the transmission spectrum of these structures under study, a number of features arise: namely, narrow transmission peaks caused by the superposition of two spectra (with large and small periods) are observed in the stop bands of the spectrum. Such features may further allow the creation of a narrow-band filter for several frequencies for both planar structures and bulk ones.
{"title":"Spectral Features of a Multi-Periodical Metamaterials","authors":"A. Girich, A. Kharchenko, S. Tarapov","doi":"10.1109/CAOL46282.2019.9019522","DOIUrl":"https://doi.org/10.1109/CAOL46282.2019.9019522","url":null,"abstract":"We numerically investigate the spectral properties of multi-periodic metamaterials of various configurations (the planar double-periodic photonic crystal and the bulk double-periodic magnetophotonic crystal) in the frequency range 15-45 GHz. In the first part of this paper we describe investigation of structure of the planar double periodic photonic crystal (PDPPC) which consists of two planar photonic crystals with large and small periods. A PDPPC unit cell consists of a series-connected narrow and wide segments of a microstrip transmission line. In the second part of this paper we will discuss results of investigation of a double-periodic magnetophotonic crystal (DPMPC) which consists of 3 unit cells. Each cell consists of periodically located 9 dielectric layers of quartz and teflon. On the border of the cell there is one layer of ferrite.We showed that both for a PDPPC and for a DPMPC in the transmission spectrum of these structures under study, a number of features arise: namely, narrow transmission peaks caused by the superposition of two spectra (with large and small periods) are observed in the stop bands of the spectrum. Such features may further allow the creation of a narrow-band filter for several frequencies for both planar structures and bulk ones.","PeriodicalId":308704,"journal":{"name":"2019 IEEE 8th International Conference on Advanced Optoelectronics and Lasers (CAOL)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123776584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-01DOI: 10.1109/CAOL46282.2019.9019429
A. N. Butok, A. Kuzmenko, V. Taranenko, P. Yezhov
The iteration method of angular spectrum is applied to the calculation of the Fabry-Pérot-resonator of a microchip laser with the given geometry. The resonator contains a phase diffraction optical element serving for the formation of a Gaussian or super-Gaussian emission beam. The maximum values of the diameter of the output aperture of a laser and the beam waist, at which the convergence of the iteration process holds (i.e., the undistorted output beam is formed), are evaluated.
{"title":"Phase Diffractive Optical Element for the Beam Shaping in the Intracavity of a Microchip Laser","authors":"A. N. Butok, A. Kuzmenko, V. Taranenko, P. Yezhov","doi":"10.1109/CAOL46282.2019.9019429","DOIUrl":"https://doi.org/10.1109/CAOL46282.2019.9019429","url":null,"abstract":"The iteration method of angular spectrum is applied to the calculation of the Fabry-Pérot-resonator of a microchip laser with the given geometry. The resonator contains a phase diffraction optical element serving for the formation of a Gaussian or super-Gaussian emission beam. The maximum values of the diameter of the output aperture of a laser and the beam waist, at which the convergence of the iteration process holds (i.e., the undistorted output beam is formed), are evaluated.","PeriodicalId":308704,"journal":{"name":"2019 IEEE 8th International Conference on Advanced Optoelectronics and Lasers (CAOL)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122491556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-01DOI: 10.1109/CAOL46282.2019.9019435
I. Nevliudov, S. Novoselov, O. Sychova
This article describes the device and control program for automated recognition of authenticity of banknotes. A technique for pre-processing the image of banknotes for improving the quality of recognition is presented. The analysis of the use of anisotropic filtration in recognition of the authenticity of banknotes has been carried out. The results of experimental studies are given.
{"title":"Development of the Anisotropic Filtration Method for Automated Recognition of Authenticity of Banknotes by their Images","authors":"I. Nevliudov, S. Novoselov, O. Sychova","doi":"10.1109/CAOL46282.2019.9019435","DOIUrl":"https://doi.org/10.1109/CAOL46282.2019.9019435","url":null,"abstract":"This article describes the device and control program for automated recognition of authenticity of banknotes. A technique for pre-processing the image of banknotes for improving the quality of recognition is presented. The analysis of the use of anisotropic filtration in recognition of the authenticity of banknotes has been carried out. The results of experimental studies are given.","PeriodicalId":308704,"journal":{"name":"2019 IEEE 8th International Conference on Advanced Optoelectronics and Lasers (CAOL)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121044189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-09-01DOI: 10.1109/CAOL46282.2019.9019416
T. Radivilova, Lyudmyla Kirichenko, Bulakh Vitalii
The article analyses the classification of time series according to their fractal properties by machine learning. The classification was carried out using neural networks and the random forest method. Objects were the model fractal time series with given the Hurst exponent. Each class was a set of time series with the Hurst exponent values in a predetermined range. Input features were the values of time series. It was demonstrated that in this case the classification accuracy is high enough. The most accurate classification results were obtained using recurrent neural network. The proposed method can be readily used in practice for recognition, classification and clustering of time series with fractal properties.
{"title":"Comparative analysis of machine learning classification of time series with fractal properties","authors":"T. Radivilova, Lyudmyla Kirichenko, Bulakh Vitalii","doi":"10.1109/CAOL46282.2019.9019416","DOIUrl":"https://doi.org/10.1109/CAOL46282.2019.9019416","url":null,"abstract":"The article analyses the classification of time series according to their fractal properties by machine learning. The classification was carried out using neural networks and the random forest method. Objects were the model fractal time series with given the Hurst exponent. Each class was a set of time series with the Hurst exponent values in a predetermined range. Input features were the values of time series. It was demonstrated that in this case the classification accuracy is high enough. The most accurate classification results were obtained using recurrent neural network. The proposed method can be readily used in practice for recognition, classification and clustering of time series with fractal properties.","PeriodicalId":308704,"journal":{"name":"2019 IEEE 8th International Conference on Advanced Optoelectronics and Lasers (CAOL)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125689787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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