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  • Machine Learning in Java
  • AshishSingh Bhatia Bostjan Kaluza
  • 97字
  • 2021-06-10 19:29:56

Data cleaning

Data cleaning, also known as data cleansing or data scrubbing, is a process consisting of the following steps:

  1. Identifying inaccurate, incomplete, irrelevant, or corrupted data to remove it from further processing
  2. Parsing data, extracting information of interest, or validating whether a string of data is in an acceptable format
  3. Transforming data into a common encoding format, for example, UTF-8 or int32, time scale, or a normalized range
  4. Transforming data into a common data schema; for instance, if we collect temperature measurements from different types of sensors, we might want them to have the same structure
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