Construction method of cement strength prediction model and cement strength prediction method

Abstract

The invention relates to the field of cement strength prediction, and particularly discloses a construction method of a cement strength prediction model and a cement strength prediction method, and the method comprises the steps: collecting a plurality of cement sample quality inspection data sets, each quality inspection data set comprising a plurality of feature parameter values; sorting the plurality of characteristic parameters from large to small according to the relevancy with the cement strength through characteristic selection based on conditional mutual information, calling the valuesof the first m parameters sorted in the quality inspection data of each cement sample to form a characteristic set of the cement sample, and training an auxiliary prediction model based on the characteristic set of all the cement samples; and determining an m value corresponding to the auxiliary prediction model with the highest prediction precision obtained by training, and synchronously optimizing a plurality of parameters of the to-be-trained model in each training iteration by adopting GA based on all feature sets corresponding to the m value to obtain a cement strength prediction model.The training sample for training the cement strength prediction model is reasonable, the training efficiency is high, and the prediction precision of the model obtained through training is high.

Description

technical field [0001] The invention belongs to the field of cement strength prediction, and more specifically relates to a method for constructing a cement strength prediction model and a cement strength prediction method. Background technique [0002] Cement is one of the basic raw materials for construction projects and plays an important role in national economic construction. How to effectively control cement quality and improve cement production efficiency is the focus of every cement enterprise. [0003] Cement strength is an important index used to measure the quality of cement. At present, the cement industry personnel regard 28 days as the age when the cement strength is basically stable, and the 28-day strength of cement is the representative strength of general cement. The grade of cement is divided according to the strength of the cement. The value of the general grade is equal to the compressive strength of the cement at a stable age. The grade of general cemen...

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Problems solved by technology

[0005] The invention provides a construction method of a cement strength prediction model and a cement strength prediction method to solve the problem of low accuracy of the existing cement strength prediction

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