Criteria for picking thumbed

I have a pandora like software system where the user can thumb up a song or thumb down a song.Application, recognized as chavah, is going to be silverlight + c, but this is the language and platform neutral question.

My software needs to choose a song good user's preferences.I need a good protocol for this.Then you decide a random element from the set of all scores, with its opportunity however weighed by its, um, burden.The fast and dirty approach i'd think of here rrs always to sum over all weights.Pick a random number small compared to that sum.Loop total songs until currentweight+songweight> randomnumber(Altogether different currentweight+=songweight)

Clearly one can make this arbitrarily more complex by http://www.milagrofilms.ca/bracelets-pandora.html introducing collabora ... Read more »