Gartner Research

Drive Data Scientists’ Productivity With Data Preprocessing Techniques

Published: 20 August 2019

ID: G00407378

Analyst(s): Sumit Agarwal


Data scientists struggle to meet projected timelines due to iterative data preprocessing and lack of data. This research describes innovative ways that data and analytics technical professionals can improve their efficiency using specialized toolsets, synthetic data and crowdsourcing.

Table Of Contents


  • Improve the Efficiency of the Data-Wrangling Process
    • Determine an Appropriate Data Sample
    • Validate the Quality of Data
    • Evaluate Feature Relationships
    • Identify and Resolve Missing Values
    • Provision Faster Compute
  • Leverage Crowdsourcing and Active Learning to Label Data
  • Generate Synthetic Data When Little or No Data Is Available
    • Distribution of Existing Data
    • Gaming Engines
    • Generative Adversarial Networks
    • Transfer Learning


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