1. Amit Kohli/
2. Data in the Real World/
3. Raw Data Has No Common Sense/

Raw Data Has No Common Sense

Our data isn't good enough for AI - sometimes true, but often the data is fine and just hasn't been prepared properly. Feature engineering is where most of the real work lives: transforming raw data into the shape that exposes common sense. Timestamps don't know it's Friday. Counts don't know that three is the threshold. You do. Put it in.