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In present paper, the linear regression, Gaussian process regression and support vector machines regression, k-nearest neighbor algorithm were used to predict the photocatalytic reaction rate constant of rare earth doped TiO2. Then, experiments were used to verify the key factor analysis effectiveness based on stepwise multiple regression and advantages of the key factor analysis based on k-NN regression...
The development of the display software systems is used to show Hainan Li brocade pattern information, including from Li brocade pattern development history, pattern features to the display of patterns. Multimedia software Authorware is used as development tools to display Li brocade pattern information, with voice, text, images, video and other multimedia information. The software developed displays...
Visual FoxPro software is used to design and develop Li brocade pattern information management system, in order to complete operations of query, add, delete and modify, etc. to Li brocade pattern information display. The database and data table need to be establish while designing each software modules. Different tables in a database are considered as the data source in each form, and the controls...
The research background of management system of Hainan Li brocade pattern gene database and the meaning of Li ethnic cultural inheritance were introduced in the paper. And the overall structure of management system of Hainan Li brocade pattern gene database was introduced also. The functional implementation of modules in the system was elaborated, such as: the design of the data table structure, add,...
The pattern gene generation technique of Hainan Li brocade can't be a single because Hainna Li brocade patterns are complicated in the shape, color and texture. The graphic and image technology is used to preprocess the original patterns, and then, the composition of patterns in the images is analyzed after patterns are segmented, denoised and smoothed, and finally, pattern genes are extracted. Two...
A fuel flow feature extraction method is proposed for the aero-engine condition monitoring. The method uses the fuel volume data recorded by Flight Data Recorder as input, and gets rid of the outliers and wave points in the fuel volume data by data cleaning. Then, a novel interpolation method referred to as slope constraint quadratic spline Hermite interpolation is proposed to transform discrete fuel...
Multi-level encryption method was used to encrypt the database system and encryption design method for different levels of data granularity was given, respectively taking database level, table level, recording level and field level as the objects.
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