Opinion mining on product reviews from document to clause

Abstract

A thesis submitted to the Nanyang Technological University in partial fulfilment of the requirement for the degree of Doctor of Philosophy 2022 Sun Aixin. I am fortunate to meet Prof.Sun. Without his patience, kindness, guidance and encouragement, I could not finish this thesis or my PhD study. Through his tireless one-to-one instruction on my research problems, I learned Natural Language Processing knowledge. More importantly, I learned how to think critically about research problems. Also, I thank the TAC members, thesis examiners, and the oral defence panel for giving valuable suggestions to my research work.Furthermore, I want to thank all my friends from schools, labs and colleagues I met for their continuous encouragement and inspiration. In particular, I thank my brilliant labmates at NTU for sharing ideas and discussion: Yequan Wang, Xin Zheng, Grace Lee,