OER·harvester

← Back to the library
Zenodo PDF resource

Foundations of Artificial Intelligence & Machine Learning

Licence
OPEN CC-BY-4.0
Authors
Nidhi Sharma, Honey Singh, Ajay Sharma, Deepak Dagar
Published
2026-07-28 · Zenodo
Language
eng
Length
37166 words
Type
narrative text
Open ↗ Download Open original ↗
Feature Engineering

Feature Engineering involves creating new features from existing data to improve model learning. Sometimes raw data alone may not provide enough meaningful information. In such situations, new features are created using mathematical or logical transformations. For example:

  • age can be grouped into categories

  • dates can generate month or weekday information

  • transaction history can create spending behavior indicators Feature Engineering helps models capture hidden patterns more effectively. Real-World Example of Feature Engineering Consider a food delivery application. Raw data may contain:

  • order time

  • delivery distance

  • traffic condition

  • weather information From this data, new features can be created such as:

  • peak-hour indicator

  • average delivery speed

  • customer activity patterns These engineered features may improve prediction accuracy significantly.