Abstract: Described are examples for classifying responses to a post in a community forum. An initial post in the community forum can be received along with multiple response posts in response to the initial post. For each of the multiple response posts, a feature vector including an array of numbers each indicative of a feature of the corresponding response post can be generated. A weight can be applied to one or more of the array of numbers in the feature vector for each of the multiple response posts. Each of the multiple response posts can be ranked in an order based at least in part on the array of numbers in the feature vector for each of the multiple response posts.