TAILIEUCHUNG - Báo cáo khoa học: "Descriptive Question Answering in Encyclopedia"

Recently there is a need for a QA system to answer not only factoid questions but also descriptive questions. Descriptive questions are questions which need answers that contain definitional information about the search term or describe some special events. We have proposed a new descriptive QA model and presented the result of a system which we have built to answer descriptive questions. We defined 10 Descriptive Answer Type(DAT)s as answer types for descriptive questions. We discussed how our proposed model was applied to the descriptive question with some experiments. . | Descriptive Question Answering in Encyclopedia Hyo-Jung Oh Chung-Hee Lee Hyeon-Jin Kim Myung-Gil Jang Knowledge Mining Research Team Electronics and Telecommunications Research Institute ETRI Daejeon Korea ohj forever jini mgjang @ Abstract Recently there is a need for a QA system to answer not only factoid questions but also descriptive questions. Descriptive questions are questions which need answers that contain definitional information about the search term or describe some special events. We have proposed a new descriptive QA model and presented the result of a system which we have built to answer descriptive questions. We defined 10 Descriptive Answer Type DAT s as answer types for descriptive questions. We discussed how our proposed model was applied to the descriptive question with some experiments. 1 Introduction Much of effort in Question Answering has focused on the short answers or factoid questions which answer questions for which the correct response is a single word or short phrase from the answer sentence. However there are many questions which are better answer with a longer description or explanation in logs of web search engine s Voorhees 2003 . In this paper we introduce a new descriptive QA model and present the result of a system which we have built to answer such questions. Descriptive question are questions such as Who is Columbus What is tsunami or Why is blood red which need answer that contain the definitional information about the search term explain some special phenomenon. . chemical reaction or describe some particular events. At the recent works definitional QA namely questions of the form What is X is a developing research area related with a subclass of descriptive questions. Especially in TREC-12 conference Voorhees 2003 they had produced 50 definitional questions in QA track for the competition. The systems in TREC-12 Blair et al 2003 Katz et al 2004 applied complicated technique which was integrated manually .

• Báo cáo khoa học
• Descriptive Question Answering in Encyclopedia
• Hyo Jung Oh
• Chung Hee Lee
• báo cáo khoa học
• mô hình 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 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