Milk producing area tracing method based on fuzzy linear discriminant analysis

Abstract

The invention discloses a milk producing area tracing method based on fuzzy linear discriminant analysis. The method comprises the following steps: (1) collecting near infrared spectrum data of milk; (2) preprocessing the spectral data by using a least square smoothing filtering algorithm; (3) carrying out dimensionality reduction on milk near infrared spectrum data by utilizing principal component analysis; (4) extracting identification information in the milk near infrared spectrum data by adopting a fuzzy linear discriminant analysis method; and (5) classifying the spectral data by using a K-nearest neighbor classifier. According to the method, the problem that a traditional feature extraction method is not ideal in classification effect when many overlapped data exist in a data set is solved, and the identification information contained in the spectral data can be effectively extracted. The method has the advantages of convenience, high detection speed, high classification precision and the like.

Description

technical field [0001] The invention relates to the field of pattern recognition and artificial intelligence, in particular to a method for tracing the origin of milk based on fuzzy linear discriminant analysis, which is applied to the identification of the origin of milk. Background technique [0002] As a green and healthy drink, milk is widely loved by consumers at home and abroad because it is rich in nutrients and trace elements, such as protein, fat and calcium. In recent years, with the improvement of people's material living standards, consumers have paid more and more attention to the quality of milk. The quality of milk has a lot to do with the environment of its origin. Milk from different origins has different nutrient contents. Therefore, in the current dairy market, there are situations where low-quality milk is sold as high-quality milk. In order to combat this illegal behavior and maintain the fairness of the dairy market, it is necessary to study a fast, a...

AI Technical Summary

Problems solved by technology

[0005] The present invention is a kind of fuzzy linear discriminant analysis designed to solve the problem that the traditional feature extraction algorithm has poor effect in the face of many overlapping data in the data set and the traditional feature extraction algorithm cannot fully extract the identification information of spectral data. Method for traceability of origin of milk

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