TABLE OF CONTENTS

ABSTRACT ……………………………………………………………………………………………………….. iii
ACKNOWLEDGMENTS ……………………………………………………………………………………. iv
LIST OF ILLUSTRATIONS ………………………………………………………………………………… vi
LIST OF TABLES ……………………………………………………………………………………………… vii
NOMENCLATURE ………………………………………………………………………………………….. viii
SECTION
1. INTRODUCTION ………………………………………………………………………………………… 1
1.1. SENTIMENT ANALYSIS …………………………………………………………………….. 1
1.2. SENTIMENT LEXICON ……………………………………………………………………….. 1
1.3. DESIGN SCIENCE ……………………………………………………………………………….. 2
2. LITERATURE REVIEW ………………………………………………………………………………. 4
2.1. SENTIMENT ANALYSIS ……………………………………………………………………… 4
2.2. LEXICON …………………………………………………………………………………………… 14
2.3. APPLICATIONS OF SA ………………………………………………………………………. 15
3. METHODOLOGY ……………………………………………………………………………………… 20
3.1. IDENTIFY THE PROBLEM ………………………………………………………………… 20
3.2. SOLUTIONS ………………………………………………………………………………………. 20
3.2.1. Original Data Extraction ……………………………………………………………… 20
3.2.2. LDA Model and NLP ………………………………………………………………….. 21
3.2.3. The Calculation of Polarity Scores ………………………………………………… 21
4. EVALUATION AND COMPARISON …………………………………………………………. 22
4.1. METHOD …………………………………………………………………………………………… 22
4.2. PETROLEXICON, BIOLEXICON AND SOCIALSENT LEXICON ………… 22
4.3. RESULTS …………………………………………………………………………………………… 23
5. DISCUSSIONS ………………………………………………………………………………………….. 25
6. CONTRIBUTIONS AND FUTURE RESEARCH ………………………………………….. 26
BIBLIOGRAPHY ………………………………………………………………………………………………. 27
VITA ……………………………………………………………………………………………………………….. 32