Academic literature on the topic 'Дискримінантна функція'
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Journal articles on the topic "Дискримінантна функція"
Худолій, О. М., and О. В. Іващенко. "Дискримінантний аналіз в оцінці функціональної і рухової підготовленості дівчат старших класів." Теорія та методика фізичного виховання, no. 4 (November 6, 2015): 12. http://dx.doi.org/10.17309/tmfv.2014.4.1113.
Full textIvchenko, V. K., A. V. Ivchenko, V. Ya Galchenko, D. V. Ivchenko, and O. I. Shvets. "Прогнозування результатів лікування переломів довгих кісток у хворих на цукровий діабет засобами інтелектуального та статистичного аналізу даних." TRAUMA 14, no. 4 (July 1, 2013): 22–25. http://dx.doi.org/10.22141/1608-1706.4.14.2013.88205.
Full textKorzhov, I. "ЗАГАЛЬНЕ ФОРМУЛЮВАННЯ ЗАДАЧІ ФУНКЦІОНАЛЬНОЇ ДІАГНОСТИКИ ДЛЯ МОДЕЛЕЙ ПАРАМЕТРИЧНОЇ ДИСКРИМІНАЦІЇ." Системи управління, навігації та зв’язку. Збірник наукових праць 6, no. 52 (December 13, 2018): 48–52. http://dx.doi.org/10.26906/sunz.2018.6.048.
Full textKozyavkina, O. V., N. V. Kozyavkina, M. S. Hordiyevych, T. V. Voloshyn, V. L. Lysovych, V. Y. Babelyuk, H. I. Dubkova, et al. "ПРОГНОЗУВАННЯ ЗМІН МОТОРНОЇ ФУНКЦІЇ РУК ВНАСЛІДОК ЗАСТОСУВАННЯ МЕТОДУ КОЗЯВКІНА® У ДІТЕЙ ІЗ СПАСТИЧНОЮ ФОРМОЮ ЦЕРЕБРАЛЬНОГО ПАРАЛІЧУ ЗА ЇХ ПОЧАТКОВИМ РІВНЕМ, А ТАКОЖ ЗА ПОКАЗНИКАМИ ЕЕГ, ВСР ТА ГРВ." Здобутки клінічної і експериментальної медицини, no. 4 (January 22, 2019): 17–35. http://dx.doi.org/10.11603/1811-2471.2018.v0.i4.9732.
Full textЦьова, Ю. А. "Дискримінантний аналіз агроекологічного впливу способів механічного обробітку ґрунту." Вісник Полтавської державної аграрної академії, no. 3 (September 30, 2016): 94–100. http://dx.doi.org/10.31210/visnyk2016.03.21.
Full textMykytiuk, M. V., M. O. Zaitsev, T. B. Martyniuk, and L. V. Krupelnytskyi. "Systolic Architecture of Matrix Processor for Classifier Of Objects." Èlektronnoe modelirovanie 43, no. 3 (June 4, 2021): 36–46. http://dx.doi.org/10.15407/emodel.43.03.036.
Full textПараниця, Н. В., О. С. Буличов, and О. М. Охмак. "ОЦІНКА ФІНАНСОВОЇ СТІЙКОСТІ ПІДПРИЄМСТВА НА ОСНОВІ ІМІТАЦІЙНОЇ МОДЕЛІ." Економічний вісник. Серія: фінанси, облік, оподаткування, no. 4 (January 21, 2020): 166–74. http://dx.doi.org/10.33244/2617-5932.4.2020.166-174.
Full textDissertations / Theses on the topic "Дискримінантна функція"
Коржов, Ігор Михайлович. "Пристрій контролю та діагностування стану промислових динамічних об’єктів." Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/43360.
Full textThe thesis is submitted to obtain a scientific degree of Doctor of Philosophy, specialty 152 – Metrology and information-measuring technique (15 – Automation and instrument-making). – National Technical University “Kharkiv Polytechnic Institute”, Kharkiv, 2019. The object of research is the process of conducting analysis in primary and secondary system transformations of information, which creates a problem situation with the improvement of hardware, algorithmic and software devices for control and diagnostics of complex industrial objects. The subject of research is a device for control and diagnostics of the state industrial dynamic objects. The scientific and practical task of increasing the efficiency of devices for control and diagnostics of the state of complex industrial objects with uncertain dynamic properties is solved in the dissertation. The solution is found using both classical and fundamentally new modern methods of probability theory, random processes, multivariate statistical analysis, information theory of measurement and control. The introduction substantiates the relevance of research tasks showing connection between the work and scientific programs, plans, themes, the scientific novelty is stated and practical value of the obtained results is formulated. The first chapter deals with analytical review and evaluation of questions in the field of control and diagnostics of the state of industrial objects. The object of diagnostics is selected; its structure, technical characteristics and area of use are considered. The analysis of methodical, algorithmic and equipment-specific devices for measuring temperature and mechanical vibration is carried out. A review of the existing devices for control and diagnostics of the state of complex industrial objects is made, their technical and economic characteristics are analyzed, and the optimal structure of the control and diagnostic system is selected. Some aspects of hardware, software and algorithmic programming when creating devices for control and diagnostics of the state of complex industrial objects are emphasized. The areas of research are selected; the main tasks of the dissertation are stated. The second chapter studies probabilistic models of parametrization of spectral changes of stationary measurement signals. The formalization of the probabilistic properties of non-stationary random signals is made, the correlation models of the spectral non-stationary of these signals are investigated, the dispersion analysis of frequency and time models of auto-coherence is carried out, the sensitivity of the correlation spectral model for the auto-coherence indicator of the multidimensional thermodynamic process is estimated, the discriminating properties of the indicators of auto-coherence are assessed regarding the classification of vibrational processes, diagnostic properties of components of the auto-coherence index are investigated, the choice of indicators for non-stationary control of dynamic processes is conducted. The research results have allowed obtaining a number of scientific results: - the theory of auto-coherence for spectrally non-stationary measurement signals has been developed. The conditions of the choice of the number of scales and displacements are determined regarding the estimation of the auto-coherence coefficients for monitoring the stationary disturbances of the measuring signal; - the conditions of calibration of auto-coherence index, which correspond to the absence of stationary violation, are obtained. A probabilistic model of the autocoherence index taking into account the minimum value (scale) of the spectral wavelet transform is developed; - the possibility of dispersion expansion of the basic auto-coherence index in paired independent components is shown, allowing to receive independent information on stationary violation, taking into account functional and random changes of the spectrum; - the example of thermal dynamic processes shows the efficiency of the developed autocorrelation index for controlling the dynamic properties of inertial multidimensional industrial objects. Also the possibility of automatic correction of the measurement error of temperature, if you control the whole heat process, and not its individual values, is shown; - the example of vibration signals shows the possibility of a qualitative classification of technical states, as well as quantitative classification of individual frequency-time components of the auto-coherence index is shown. It is proved that the best diagnostic properties are characterized by random (noise) components of the auto-coherence index. The third chapter presents studies on the diagnostic properties of autocoherence indices with restrictions on the measurement information volume. The general task of functional diagnostics of dynamic industrial objects is formulated, the model of parametric discrimination is chosen, the influence of the study sample size on the average risk of diagnosing is investigated, and mathematical and computer models of optimization of the space of informative signs by the criterion of maximum likelihood were created and their research was conducted. The researches in this chapter have allowed obtaining the following results: - experimental studies of the auto-coherence indices of vibration signals show that it is possible to use a linear solving function for controlling and diagnosing the technical state of vibrational objects, for which it is possible to use dispersion tables of auto-coherence indices and a normalized covariance matrix, which allow to generate, by multiplication, a total covariance matrix; - equations for the average risk and diagnostics probability are obtained allowing to model the influence of the training sample volume and informative features number on the performance indicators of the technical condition; - the existence of minimal extreme values of average risk for thermal and vibrational objects has been proved, allowing to use average risk as a target function for optimizing informative features space; - the complex influence of three parameters (geometric distance between diagnosed states, number of informative parameters, training sample volume) on the probability of control and diagnostics of the technical state of both thermal and vibration objects is studied. Such research has proven the ability to form an optimal, maximum control probability, system of informational features. The fourth chapter is devoted to the development of algorithmic and software device for monitoring and diagnosing the state of industrial objects. The methods of primary and secondary statistical transformations based on regression, spectral, dispersion and covariance analyses of the control and diagnostic device, have allowed to form the structure and the principle of algorithmic support functioning while limiting the volumes of measuring information by the diagnosed functional states. In this chapter the software aimed at implementation of the developed algorithms is chosen, programs fragments of devices for control and diagnostics of the state of industrial objects on the platform LabView are developed. According to researches of this chapter the following results are obtained: - the algorithmic structure of control devices and diagnostics of dynamic objects is developed, which consists of primary and secondary statistical transformation and contains the implementation of sampling processes of measurement signals, discrete analog wavelet transformation, differentiation and integration procedures; - an adaptive wavelet transform process with a flexible choice of the Gaussian parent wavelet is implemented, which minimizes the errors of control and diagnostics. - computer components of algorithmic and software procedures of primary and secondary statistical transformation in the synthesis of computerized diagnostic systems are formed, simulation modeling is conducted, the effects of destabilizing factors when controlling parameters of dynamic objects nodes are analyzed and their states are diagnosed; - the device software for controlling and diagnosing the state of industrial objects on the LabView platform with the use of object-oriented programming language, which allows to carry out the necessary control procedures in batch mode and in real-time, is developed.The fifth chapter presents engineering applications for the control and diagnostics of complex industrial objects. The research is provided for the development and patenting of primary transformers, selecting and patenting the structure of measuring channels of primary transformers, the development and creation of electronic blocks of primary and secondary transformation of information. The method of calibration of vibration test stands for metrological provision of primary vibration transducers is proposed, the verification of qualification of calibration laboratories in Ukraine and the influence of metrological support on the creation of systems of control and diagnosis of complex industrial objects are considered. According to researches of this chapter the following results are obtained: - primary temperature transducers for monitoring infra-low frequency processes in the investigated industrial object when evaluating thermal regimes, as well as primary transducers of mechanical vibration for monitoring high-frequency processes when evaluating rolling bearings condition of gear reducers are developed and patented; - on the basis of the Arduino microcontroller, a device for monitoring and diagnosing the condition of the extruder heating zones for manufacturing thermoplastics and the rolling bearings condition of gear reducers is created; - metrological researches of devices for measurement of infra-low frequency and high-frequency measuring signals are conducted, the vibration testing devices are implemented, and calibration methods of these devices are developed. - prospects for development of the theory and practice of control and diagnostics of processes characterized by different frequency indices in the specialized metrological laboratories are presented.
Conference papers on the topic "Дискримінантна функція"
Мартинюк, Тетяна, Максим Микитюк, and Микола Зайцев. "ПРОСТОРОВО-РОЗПОДІЛЕНА ОБРОБКА ЕЛЕМЕНТІВ ДИСКРИМІНАНТНИХ ФУНКЦІЙ ПРИ КЛАСИФІКАЦІЇ ОБ’ЄКТІВ." In EDUCATION AND SCIENCE OF TODAY: INTERSECTORAL ISSUES AND DEVELOPMENT OF SCIENCES. European Scientific Platform, 2021. http://dx.doi.org/10.36074/logos-19.03.2021.v2.32.
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