I am trying to model an individual's 'engagement' with a document over time.
Example: A user receives a document at time t, they then download it at t+1. They could then come back to the same document and download it again (t+2). This second download action is seen as an indication of increased engagement and therefore the weight of this action should be more than the weight of the first.
- I'm look at downloads over a 28 day period.
- The total score for the user against a document should be the sum of all these download actions at certain times.
- I want the score for a user's engagement for a particular document to be on the scale from 0-1.
Any ideas for how to model this?