Data Preprocessing-Introduction

1. The role of data preprocessing

  • An important link in the data analysis process
  • Directly determines the quality and value output of all data work in the later period
  • Plays a decisive role in the final results of the model

2. The main content of data preprocessing

  • Data cleaning
  • Data conversion
  • Data dimensionality reduction
  • Sample imbalance
  • Data sampling
  • Collinearity problem
  • Correlation
  • standardization
  • Discretization
  • Unstructured data

 

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Origin www.cnblogs.com/yanmai/p/12746367.html