The $NORM for the day the vote was cast seems a good value. While this will involve quite a lot of calculations, something like: 
my $weighted_norm = 0;
foreach (@days) {
 $weighted_norm += $norm_of_the_day * $amount_of_votes_on_this_day / $
+total_amount_of_votes ;
}

[download]
could calculate the weighted norm. I'm afraid this will be too big a burden (CPU-time) to implement.

In reply to Re: Re: More useful "best" and "worst" nodes display by eXile
in thread More useful "best" and "worst" nodes display by deprecated

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