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Scala:Applied Machine Learning by Alex Kozlov, Patrick R. Nicolas, Pascal Bugnion

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Monadic data transformation

The first step is to define a trait and method that describe the transformation of data by the computation units of a workflow. The data transformation is the foundation of any workflow for processing and classifying a dataset, training and validating a model, and displaying results.

There are two symbolic models used for defining a data processing or data transformation:

  • Explicit model: The developer creates a model explicitly from a set of configuration parameters. Most of deterministic algorithms and unsupervised learning techniques use an explicit model.
  • Implicit model: The developer provides a training set that is a set of labeled observations (observations with an expected outcome). A classifier extracts a model ...

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