Classical feature extraction methods include: Principle Component Analysis, Singular Value Decomposition, Projection Pursuit, Self-Organizing Map, and so on.

传统的特征提取方法主要有：主分量分析、奇异值分解、投影追踪、自组织映射等。

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A method of neural network prediction based on wavelet decomposition is proposed by combining the theory of wavelet analysis with the fundamental principle of neural network modeling and prediction.

将小波分析理论与神经网络建模预测基本原理相结合，提出了基于小波分解的神经网络预测方法。

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Using the basic principle of spectrum decomposition, the paper conducted the recognition of fault system, analysis of sedimentary environment and lateral prediction of reservoir.

本文根据频谱分解技术的基本原理，进行了断裂系统识别、沉积环境分析和储层横向预测。

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