Expiratory air detection device and establishment method of expiratory air marker of expiratory air detection device
A technology for detecting devices and establishing methods, applied in measuring devices, chemical property prediction, instruments, etc., can solve the problems of lack of repeatability of respiratory markers, inability to determine uniformity, and difficulty in achieving ideal results in small-scale statistical analysis of data volumes, etc. , to achieve the effect of high reliability, rich resources, simple and fast operation
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[0036] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
[0037] Commercial software: PTR-TOF-MS1000 system (IoniconAnalytik GmbH, Innsbruck, Austria) simulation software;
[0038] Experimental steps: retrieve the data of exhaled breath composition and concentration in the PTR-MS data simulation software, save and create a biological information database.
[0039] One modeling method is: in order to reduce the amount of data and improve the operation speed, three data dimension reduction methods, UVE, SPA and CARS, are used to extract characteristic variables, in order to replace all experimental data with a small number of experimental data. BPNN is used to carry out machine learning on the training set data to determine an analysis model.
[0040] Another modeling method is to u...
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