WordPress Popularity Score relative to all posts (score views, shares and comments) -

i trying find solution score posts in effort visually represent how "hot" are, relative other posts, or relative score of 1.

i have views, total shares , comments available inputs, i'm unsure approach take score posts against each other, have relative score out of 1, i.e. .6, .8 etc.

i came across following in search solution

http://www.evanmiller.org/rank-hotness-with-newtons-law-of-cooling.html

and

hot content algorithm / score time decay

any ideas on how can approach this? posts should take account time, have several years worth of posts.

thank you

i ended setting 5 scoring periods, scoring each post against highest score found in period. score takes in social media, post views , comments. provides rating!