The algorithm that always compared everything


A company develops an AI that is supposed to automatically summarize product reviews.

The AI compares new reviews with existing ones to quickly derive an overall rating.

At first, this works well because it finds patterns and classifies reviews.

But soon it becomes apparent: The AI always rates new, unique, or special opinions as less relevant or even wrong.

Unusual reviews that deviate from previous ones are heavily downgraded or ignored.

The company wonders: Why can an AI that uses comparisons as a basis not adequately consider new or divergent viewpoints?


Question:
Why does an AI trained on comparison with existing data tend to neglect or misjudge unusual or novel reviews?

Solution follows tomorrow.