> However one important lesson is that mapping associations to numbers > in the 'wrong' way can significantly harm the result. For example, 1 > click is much much more significant than 0. 2 clicks is more > significant than 1. But are 10 clicks 5 times stronger than 2? > probably not. Maybe it's a favorite, but after "several" clicks the > additional clicks mean little more.
Another thing to consider in this same vein is that 1 or 2 clicks on a resource may indicate a very strong preference (if the topic is generally unpopular) or it may indicate a very weak preference (if the topic is highly popular). You should consider how other users are interacting with this and other similar resources to help determine satisfaction. I'll also echo Ted's comment that clicks are just a proxy for user satisfaction. If you have a better way to measure satisfaction (such as time spent with the resource, further interaction, etc...) then you will end up with better recommendations. Tanton
