Predictive analytics

Introduction to Data Literacy

Carl Rosseel

Head of Business Intelligence Curriculum, DataCamp

Analytics overview

Analytics overview

Introduction to Data Literacy

Why use predictive analytics?

  • Anticipate most likely outcomes
  • Forecast a process or sequence
  • Estimate an unknown based on the information that is available

 

Be careful: there is always a degree of uncertainty associated with predictions

Zoom-in of predictive analytics

Introduction to Data Literacy

Common techniques

  • Machine learning models
    • Classification-based
      • Predicting cancellations of subscriptions
    • Regression-based
      • Predicting housing prices based on neighborhood characteristics
  • Time series forecasting
    • Predicting sales revenue over time
  • Predictive text analysis
    • Predicting whether an email is spam or not

Example time series

Introduction to Data Literacy

Predictive modeling

Steps of predictive modeling

  • Data is split into training and test set for building the predictive model
  • Predictions are interpreted and evaluated on the test data, using pre-determined metrics like accuracy (percentage of correct predictions)
Introduction to Data Literacy

Case study: World Cup winner

Which team is most likely to win the next FIFA World Cup?

  • Select relevant variables like team ratings, player ratings, rankings, and match difficulty
  • Build a predictive model to predict probability of winning or reaching specific phases

 

Use insights to predict winning probability for each country

World Cup trophy and ball

Introduction to Data Literacy

Let's practice!

Introduction to Data Literacy

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