I. INTRODUCTION  
II. FUNDAMENTALS  
A. NATURAL LANGUAGE PROCESSING TASKS  
B. TEXT REPRESENTATION  
C. ARTIFICIAL NEURAL NETWORKS  
III. METHODOLOGY OF LITERATURE REVIEW  
IV. EVOLUTION OF TEXT REPRESENTATION METHODS  
B. GENEALOGY  
V. DISCUSSION OF TAXONOMY OF TEXT REPRESENTATION METHODS  
VI. RELATED WORK  
VII. CONCLUSION