Effects of gravity (G) and time (T)
Gravity and time have a significant impact on the score of an item. Generally these things hold true:
- the score decreases as T increases, meaning that older items will get lower and lower scores
- the score decreases much faster for older items if gravity is increased
How score is behaving over time
As you can see the score decreases a lot as time goes by, for example a 24 hour old item will have a very low score regardless of how many votes it got.
How gravity parameter behaves
As you can see by the graph the score decreases a lot faster the larger the gravity is.
def calculate_score(votes, item_hour_age, gravity=1.8):
return (votes - 1) / pow((item_hour_age+2), gravity)
