Building a semantic role labeling system for Vietnamese sentences

• Main Author: Nguyễn, Thanh Huy
• Format: Theses and Dissertations
• Language: other
• Published: Đại học Quốc gia Hà Nội 2016
• Subjects: Nhận dạng ký tự; Tiếng Việt; Tin học
• Online Access: http://repository.vnu.edu.vn/handle/VNU_123/8299
• Institution: Vietnam National University, Hanoi

Function tags are labels which are defined as labels which contain abstract syntactic information of constituents such as noun phrases and prepositional phrase in a sentence. Beside syntactic labels, function tags have significant roles in Nature Language Processing (NLP). Function tags are the key to answer several questions such as: who, whom, where, what, which often use in problems as: question answering, infor mation extraction, and summarization. These questions are very hard to answer if a NLP -system has only syntactic information. In recent years, function tag labeling has been studied for languages such as English and Chinese. In Vietnam, Nature Language Pro cessing researches have recently studied in parsing syntactic problems. In this thesis, I focus on building a function tag labeling system for Vietnamese. With our experiment, I hope that our system will enrich data sources for NLP-research in Vietnamese later. The structure of thesis includes three parts. In the first part, I introduce function tags: their applications and why they attract researchers to explore the relationship between function tags with constituents in a sentence. I also mention some modern research in function tag labeling problem including: related works, features, approaches and methods. Besides, I will introduce Vietnamese function tags, corpus Viet Treebank, which is used in many NLP research in Vietnamese.In the second part, I represent function tag labeling approaches in recent research. Briefly, for each approach I will pr opose and discuss aspects such as: approach strategy, features, methods, advantages and disadvantages. For other methods the reader can refer to the bibliography. In the last part, I will present our research in function tag labeling for Vietnamese. I will discuss related works such as: processes to prepare data sources, selection features, proposal model and the effectiveness of our method