Multi-kernel support vector machine based dynamic fermentation process predicating method

Abstract

The invention belongs to the field of biological fermentation as well as the field of information science, relates to a multi-kernel support vector machine based dynamic fermentation process predicating method, in particular to a method for applying an improved support vector machine for establishing a fermentation process model to predict biological state parameters in the fermentation process. The method specifically includes: searching data most similar to data in a current time window from a historical batch database, combining the data to form a similar training sample set, and utilizing the established similar training sample set and applying a support vector machine algorithm to establish a local training model at current time in a current batch. Meanwhile, a multi-kernel function is constructed to process samples in different stages so as to establish local models. By the method, the biological state parameters of the fermentation process are measured timely and accurately, the trouble of staging the fermentation process prior to modeling is omitted, and the method has the advantages of small sample demand quantity, accuracy in prediction and short time, and is of important significance to control of the fermentation process and optimal control.

Description

technical field [0001] The invention not only belongs to the field of biological fermentation, but also belongs to the field of information science, and specifically relates to a method for establishing a fermentation process model and predicting biochemical parameters by using an improved support vector machine in the fermentation process. Background technique [0002] Fermentation engineering refers to a new technology that uses modern engineering technology to use some specific functions of microorganisms to produce useful products for human beings, or directly applies microorganisms to industrial production processes. It is an important part of biotechnology. An important link in the industrialization of biotechnology. Modern fermentation technologies are increasingly becoming an important part of the global economy. The National Development and Reform Commission and the Ministry of Industry and Information Technology issued the "Food Industry "Twelfth Five-Year" Develo...

AI Technical Summary

Problems solved by technology

The dynamics of the fermentation process model is realized by establishing a dynamic sample set of the fermentation process, which overcomes the problem that the original model cannot adapt to the new environment once the production conditions are changed due to the huge differences between batches of the fermentation process; at the same time, through Construct a multi-core function to adapt to the multi-stage characteristics of the fermentation process, saving the trouble of modeling the fermentation process in stages

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