TAILIEUCHUNG - Báo cáo khoa học: "Extracting Comparative Sentences from Korean Text Documents Using Comparative Lexical Patterns and Machine Learning Techniques"

This paper proposes how to automatically identify Korean comparative sentences from text documents. This paper first investigates many comparative sentences referring to previous studies and then defines a set of comparative keywords from them. A sentence which contains one or more elements of the keyword set is called a comparative-sentence candidate. Finally, we use machine learning techniques to eliminate non-comparative sentences from the candidates. As a result, we achieved significant performance, an F1-score of , in our experiments using various web documents. . | Extracting Comparative Sentences from Korean Text Documents Using Comparative Lexical Patterns and Machine Learning Techniques Seon Yang Department of Computer Engineering Dong-A University 840 Hadan 2-dong Saha-gu Busan 604-714 Korea syang@ Youngjoong Ko Department of Computer Engineering Dong-A University 840 Hadan 2-dong Saha-gu Busan 604-714 Korea yjko@ Abstract This paper proposes how to automatically identify Korean comparative sentences from text documents. This paper first investigates many comparative sentences referring to previous studies and then defines a set of comparative keywords from them. A sentence which contains one or more elements of the keyword set is called a comparative-sentence candidate. Finally we use machine learning techniques to eliminate non-comparative sentences from the candidates. As a result we achieved significant performance an F1-score of in our experiments using various web documents. 1 Introduction Comparing one entity with other entities is one of the most convincing ways of evaluation Jindal and Liu 2006 . A comparative sentence formulates an ordering relation between two entities and that relation is very useful for many application areas. One key area is for the customers. For example a customer can make a decision on his her final choice about a digital camera after reading other customers product reviews . Digital Camera X is much cheaper than Y though it functions as good as Y Another one is for manufacturers. All the manufacturers have an interest in the articles saying how their products are compared with competitors ones. Comparative sentences often contain some comparative keywords. A sentence may express some comparison if it contains any comparative keywords such as MỢ bo-da than JIS ga-jang most S da-reu different gat same . But many sentences also express comparison without those keywords. Similarly although some sentences contain some keywords they cannot be comparative sentences.

• Báo cáo khoa học
• Extracting Comparative Sentences
• Korean Text Documents Using Comparative Lexical Patterns
• Machine Learning Techniques
• báo cáo khoa học
• báo cáo ngôn ngữ
• xử lý ngôn ngữ tự nhiên
• Bài giảng Xử lý ngôn ngữ tự nhiên
• Ngôn ngữ tự nhiên
• Kỹ thuật lập trình
• Xử lý nhập nhằng ngữ nghĩa
• Xử lý ngữ nghĩa
• Xử lý ngôn ngữ
• Natural Language Processing
• Ngôn ngữ lập trình
• Nhập nhằng cấu trúc
• Tri thức về ngôn ngữ
• Mô hình ngôn ngữ
• Mô hình n gram
• Dịch máy
• Phương pháp dịch máy
• Hiểu ngôn ngữ
• Phân tích ngữ nghĩa
• Phân loại tin tự động
• Biểu diễn vị từ
• Thuộc tính về sự kiện
• Thuộc tính về sự kiện
• Mô hình ngôn ngữ Google Book N grams
• Mô hình ngôn ngữ KenLM
• Phương pháp làm mịn
• Tách từ tiếng Việt
• Gán nhãn từ loại
• Phân tích cú pháp
• Nghĩa từ vựng
• Phân giải nhập nhằng từ
• Phân loại văn bản
• Lexical chain
• Phản hồi thông tin
• Bài toán PTCP
• Cấu trúc ngữ pháp
• Phân tích cú pháp xác suất
• CKY kết hợp xác suất
• Văn phạm phi ngữ cảnh xác suất
• Hình thái học