This free online course explains that while data cleaning, preparation and enrichment take up an enormous amount of time, and is nevertheless a crucial stage in the data science methodology. However, data transformation tools haven’t fully caught up with the popularity of data analysis. Learn why domain experts need powerful yet easy-to-use interfaces to explore new data sets, normalize them and process them via innovative services often available via an API only. The instructor demonstrates the strengths of OpenRefine, which are that it offers a self-service agile and iterative interface for data discovery and preparation, as well as an easy-to-learn scripting language.

Keywords: Google Refine, General Refine Expression Language (GREL), Data enrichment, Data cleansing
Author: Magdinier, Martin
Publisher: Cognitive Class
Time required: P7H
Educational use: instruction
Educational audience: teacher-educationSpecialist
Interactivity type: mixed

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