Category Affinity Demo

The category affinity algorithm works as follows:

• Ten points for the first category viewed
• Five points for each category clicked after the first
• When a new category is clicked, 1 is subtracted from all previously clicked categories
• If a category was already clicked (seen), clicking it again does not subtract 1 from all other categories
• If a sixth new category is clicked, the lowest scored category of the first five categories is dropped from the calculation
• At end of session, divide all values by 2