Day #74 - Feature Generation - DateTime and Coordinates

DateTime

• Differ Significantly between numeric and categorial features
• Periodicity - Year, Date, Week
• Time Slice - Time past since particular moment (before / after), Time moments in period
• Difference in Dates (Datetime_feature1 - Datetime_feature2)
• Special Time period (Medication every 3 days)
• Sales Predictions (Days since last holiday, Days since weekend, Since last sales campaign)
• Boolean binary indicating date is holiday or not
• Sales Context Churn Prediction
•     (Date Since user registration) - DateDiff
•     (Date Since last purchase) - DateDiff
•     (Date Since calling customer service) - DateDiff
• Periodicity - Day number in week, month, season, year, second, minute, hour
• Time Slice, Difference between dates

Coordinates

• This can be used for churn prediction (Likelihood customer will return)
• In Real Estate Scenario for predictions on Prices
•     (Distance from School)
•     (Distance from Airport)
•     (Flats around particular point)
• Alternatively distance from maximum expensive flat
• Centre of clusters and find distances from centre point
• Aggregated Statistics for surrounding data

Happy Learning and Coding!!!