... in- terests since they are not always available.770age and gender. In International AAAI Confer-ence on Weblogs and Social Media.Mark Hall, Eibe Frank, Geoffrey Holmes, BernhardPfahringer, Peter ... Kumar, Jasmine Novak, Prabhakar Raghavan, and Andrew Tomkins. 2004. Structure and evolu-tion of blogspace. Commun. ACM, 47:35–39, De-cember.Amanda Lenhart, Kristen Purcell, Aaron Smith, and Kathryn ... al.’s approach usingthe same data and have a 4% increase in accu-racy. However, the paper is lacking details and it is entirely unclear how they were able to dothis with fewer features than...