Abstract: In one embodiment, a method includes retrieving comments associated with a content object, determining one or more labels for each of the comments, where the labels for each comment are determined by a text classifier based on content associated with the comment, determining a score for each of the comments, where the score is based on one or more signals associated with the comment, and the signals are related to the labels associated with the comment. The method further includes ordering the comments based on the respective scores and presenting one or more of the ordered comments to a target user. A classifier algorithm may be applied to each comment to determine the one or more labels, where the classifier algorithm is trained to identify the one or more labels. Each signal may have a value based on a degree to which the label applies to the comment.