CS 447, Fall 2015 Homework 2 This directory contains 11 files: (1) README: This file (2) hw2.pdf: PDF handout with description of the assignment Part 1: Hidden Markov Model POS Taggers (6 points) Code: (3) hmm_sanity_check.py: Test script for Part 1 (provided to validate your code) (4) hw2_hmm.py: Stub Python module for bigram HMM tagger (5) hw2_hmm_eval.py: Stub Python module for evaluating your tagger Data: (6) train.txt: Tagged POS training data (7) test.text: Raw POS test data (8) gold.text: Tagged POS test data Part 2: Pointwise Mutual Information (4 points) Code: (9) pmi_sanity_check.py: Test script for Part 2 (provided to validate your code) (10) hw2_pmi.py: Stub Python module for calculating PMI of movies.txt corpus Data: (11) movies.txt: Movie review corpus for PMI calculation *********************************************************************************************** * Please note that you are not allowed to share the data with people outside of this class. * * Furthermore, you must delete the three data files at the end of this semester. * ***********************************************************************************************