Tina works for a leading AI-based recommendation system company. Her team is tasked with testing a new algorithm designed to enhance product recommendations. As a part of the testing phase, they need to ensure the data used for testing mirrors real-world scenarios to validate the algorithm's effectiveness.What does data preparation involve in AI testing, as per Tina's task?
Only collecting data from a single source.
Collecting, transforming, and cleansing data to create representative test datasets.