Instead of assigning weights to each ad, why not assign it to a weight
range? For instance, your cheapest ad is $.01 and your biggest ad is $10.00
(which is constantly in flux). Take the range and divide it into however
many groups you want, say 10 for consistency's sake. Then come up with a
priority algorithm for the 10 groups (taking into account a possible 0 ads
in a group). So your ad at $4.01 would be in group 5, but if the top got
bumped up to $10.10 it would bump it down to group 4.
So your example of 99 $.01 and one $5 ad would show a high priority to the
$5 ad and a lesser chance to be seen at the $.01 rate as group 1 would not
have as much exposure.
Ryan Kime
<mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED]
Web Developer
Webco Industries
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Tuesday, May 18, 2004 4:08 PM
To: CF-Talk
Subject: ad weights
Here's a fun task. I'm building pay per click ads for HoF (in place of
banner
ads and yes, the list ads are coming off). One thing is that I need to give
each
ad a weight in relation to another to show how often it should come up. I've
thought of a few ideas and wanted to hear what others think.
Basically, there's a table of ads that's dumped into an application array
for
caching. The question is, how to dump the ads in order to give 'high paying'
ads
more show than 'low paying' (or free) ads.
This is one idea:
When this table is dumped into an application array, a position in the array
is
given for each ad for each dollar (or part) it has.
.01 is 1 position.
$1 is 1 position.
$1.01 is 2 positions.
This is rather simple and works well for small amounts of ads, but when you
get
a lot, it fails.
ex: 99 ads at .01 and 1 ad at $5 will equal an array of 104 items. The big
paying ad has a greater chance of being seen in relation to any other ad,
but is
buried under all the low paying ads.
Another idea is to have sub arrays for each price grouping. In this example,
the
chances of a $5 text ad coming up is far greater than a $1 ad and if a $5
comes
up, then it'll be one of several $5 ads. This may work and I'm building it
now.
Critique?
--
Michael Dinowitz
House of Fusion
http://www.houseoffusion.com
Finding technical solutions to the problems you didn't know you had yet
_____
[Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
