How some sites like "okcupid" find your 'match' or 'would be', mathematically. We will see that algorithm in simple language.
The site or the app asks a number of simple questions. One can choose and answer the questions. The more you answer, the more likely you will get a match. While answering, three things should be done. 1. Attach some importance to the question. 2. Give what answer you expect for the question from other person. 3. Answer the question yourself. Let us see an example.
SCORES FOR IMPORTANCE
Irreverent - 0
A little important - 1
Some what important - 10
Very important - 50
Mandatory - 250
Let us take 2 questions
1. Does my height matter for you?
2. Do you earn a five figure salary?
Let us assume that 'you' and your would be partner 'x' answer these questions.
Now, we have to view the scores in your point of view and in X's point of view.
IN YOUR EYES
For the first question, X scored 50/50. Since X have given the answer you want and you have attached very important to it
For the second question X scored 0/1 , since the answer is not expected one. Now combining both the scores.
50+0/50+1 =50/51 = 58%
Hence X scored 98% in your angle.
IN X'S EYES
For first question, you scored 0/1
(not expected answer, little important)
For second question, your score 10/10(expected answer, somewhat important) combining the points.
10+0/10+1 = 91%
Your score is 91% in X's eyes.
The final step of the algorithm is to find 'match percentage'. Here, we are going to take geometric mean of two persons' scores. So, multiply two scores and take square root.
square root of( .98*.91) = .94=94%
94% is the match percentage for you and X. A good percentage.
Suppose, three questions are answered, we have to take cube root. If n questions are answered, we should go for nth root. The higher 'n' gives, high match percentage. (please work out and find yourself). The higher your match percentage with a person, the higher up your profile will appear in their results and their profile in yours. Hence, the more you answer, the wider your pool of questions, your chance of finding the 'date' increases. Good luck.
FOOT NOTE: This article does not favour or disfavour the algorithm. But only appreciates the math element in it.
----------------------------------------------------------------
Comments
Post a Comment