The invention relates to the technical field of
metadata classification, and provides a
metadata classification model construction method and
system based on a neural network, and the method is characterized by comprising the following steps: S1, defining a neural
network level, the number of neurons and a connection rule, constructing a model basic topological structure, and constructing a neural
network level; an initial framework is provided for subsequent parameter optimization; s2,
metadata samples are collected, format unification, abnormal value filtering and
standardization are completed, a
training set, a
verification set and a
test set are divided, and output serves as input data of reverse error enhancement; and S3, introducing controllable
noise based on the preprocessed metadata, and dynamically adjusting the weight of an error sample. A multi-dimensional anti-
noise system is constructed through a neural
noise adaptation mechanism, Poisson noise, Ttower matrix non-traditional signals and composite trigonometric function regulation are fused,
noise intensity dynamic balance is achieved, and the classification accuracy and robustness of the model in a high-noise and
fuzzy classification scene are remarkably improved.