Minor trust score algorithm change

[theymos]

The trust score numbers are now slightly different:
- The first number is the trust score.
- The second number is the number of unique users who have given that person negative feedback.
- The third number is the number of unique users who have given that person positive feedback.
- The fourth number was removed.

I also completely changed the trust score algorithm to this:

Code:

if there are no negative ratings
	score = 0
	for each rating, oldest to newest
		if this rater has already been counted
			continue
		score += min(10, round_up(months since rating))
else
	score = unique_positive - 2^(unique_negative)
	if score >= 0
		start_time = time of first negative
		score = unique_positive since start_time - unique_negative since start_time
		if(score < 0)
			return ??? (orange)
			
move score to range [-9999,9999]
return score

This algorithm is a little slower than the previous one. Post here if you think you see extra slowness due to this change. Maybe I need to add extra caching to compensate.

Also post here if someone has a trust score that seems wrong.

I was going to change it so that everyone with 0 trust had orange trust, but I decided that this looked bad and changed it back.

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[marcotheminer]

Interesting. Thanks for clarifying things!

[Neotox]

thanks for update, I was worried when I saw weird  trust ratings

update: but there is still something wrong with trust system, sent you a PM, please check

[marcotheminer]

Seems like some trust scores jumped up quite a bit. Hmm, should this still stay?

[redsn0w]

I also want to say thanks for this improvement, we will see in the next days what the community think about

[Quickseller]

It looks like this results in most people having higher trust scores. Is there going to be any kind if max score like there was previously (150)? (I don't see it in your formula).

It looks like the revised formula is going to be more resistant to people trading with others multiple times in order to get additional  positive trust ratings. It should also make it easier for someone to have overall negative trust when they execute a long con.

[Mitchell]

Damn, my trust score changed drastically. With the default settings I now have over 50 points, instead of 30 or so.

[niktitan132]

Aha, I thought forum got some bug when I saw my trust rating.Anyways thanks for update.

[koshgel]

Damn, my trust score changed drastically. With the default settings I now have over 50 points, instead of 30 or so.

Same here. I saw 24 for myself before and now it's at 100..

Seems like a more straightforward representation of numbers though.

[erikalui]

Thanks for the clarification. However, I can see that people have got triple the number of ratings in their account. I can see 13 as my trust score. First number is the trust rating and second number is the negative feedback I've received  

[icey]

Pleasant surprise, thought there was a problem with my trust

[monbux]

I was so freaked when I saw the change in my trust score!
Yeah, keep people at neutral trust in black text. 

[dogie]

I also completely changed the trust score algorithm to this:

Code:

if there are no negative ratings
	score = unique_positive - 2^(unique_negative)
	if score >= 0
		start_time = time of first negative
		score = unique_positive since start_time - unique_negative since start_time
		if(score < 0)
			return ??? (orange)

Doesn't that mean if someone receives a positive and a negative rating, they'll go negative if the negative is newer?

Code:

		score += min(10, round_up(months since rating))

That seems like quite an extreme decay, ratings after 10 months are worthless? Its going to lead to a lot of reposted ratings to refresh them.

[dogie]

Is there going to be any kind if max score like there was previously (150)?

Currently -9999 to 9999

[peligro]

There are some useful changes, but the first score needs to be rescaled. It varies too much if one trust is added or removed. Makes anyone in Default trust much more powerful and those outside it more worthless.

Muhammed Zakir's rating shows as ???

EDIT: It has changed now as the negative feedback became untrusted. This only shows how much it fluctuates.

[redsn0w]

There are some useful changes, but the first score needs to be rescaled. It varies too much if one trust is added or removed. Makes anyone in Default trust much more powerful and those outside it more worthless.

Muhammed Zakir's rating shows as ???

Yes:



It is a bug.... theymos can surely fix it.

[peligro]

There are some useful changes, but the first score needs to be rescaled. It varies too much if one trust is added or removed. Makes anyone in Default trust much more powerful and those outside it more worthless.

Muhammed Zakir's rating shows as ???

Yes:



It is a bug.... theymos can surely fix it.

It became an easy fix, remove LouReed

[Neotox]

There are some useful changes, but the first score needs to be rescaled. It varies too much if one trust is added or removed. Makes anyone in Default trust much more powerful and those outside it more worthless.

Muhammed Zakir's rating shows as ???

already reported about this ?? ? bug to admin theymos

[erikalui]

There are some useful changes, but the first score needs to be rescaled. It varies too much if one trust is added or removed. Makes anyone in Default trust much more powerful and those outside it more worthless.

Muhammed Zakir's rating shows as ???

already reported about this ?? ? bug to admin theymos

The code is : if(score < 0)
         return ?? ? (orange)

Hence it returned ?? ?

[theymos]

??? is a valid score in the new algorithm.

Doesn't that mean if someone receives a positive and a negative rating, they'll go negative if the negative is newer?

If someone has 1 positive and 1 negative, then the time doesn't matter. They'll have a score of -1.

Examples:
Old -> New
+ - : -1
- + : -1
+ + - : ???
+ - + : 0
- + + : 1
+ + + : >=3
- - + : -3
+ - - : -3
- - - : -8

That seems like quite an extreme decay, ratings after 10 months are worthless? Its going to lead to a lot of reposted ratings to refresh them.

There is no decay. Ratings grow in weight from 1 to 10, then stay at 10 forever. (If the rated person has no negatives.)