Announcements: [11/27] Solution for homework 4 has been posted. [11/22] Last year's final exam has been posted. [11/22] The second midterm is scheduled on the 2nd of December during class. It will be an open book, open notes exam. This midterm covers the following topics: sequence classification (HMMs, log-linear sequence classification), EM for product of multinomials, forward-backward algorithm,