open PDF ctrl+f "cluster" Yeah, cluster analysis is a pretty great approach as long as you have enough users to cluster around, so often you have to have a non

open PDF ctrl+f "cluster" Yeah, cluster analysis is a pretty great approach as long as you have enough users to cluster around, so often you have to have a non-social component to start things off for low amounts of users (rec more $$, Chinese, and/or San Mateo options because you liked Joy Luck Place; get more data; then rely more on social once you have data points.) For things that mine Yelp, it's especially convenient because you can mooch data off of Yelp's social graphing. (Of course, scraping that would totally go against their ToS.)