TAILIEUCHUNG - Báo cáo khoa học: "VERB SEMANTICS AND LEXICAL SELECTION"

This paper will focus on the semantic representation of verbs in computer systems and its impact on lexical selection problems in machine translation (MT). Two groups of English and Chinese verbs are examined to show that lexical selection must be based on interpretation of the sentence as well as selection restrictions placed on the verb arguments. | VERB SEMANTICS AND LEXICAL SELECTION Zhibiao Wu Department of Information System Computer Science National University of Singapore Republic of Singapore 0511 wuzhibia@ Martha Palmer Department of Computer and Information Science University of Pennsylvania Philadelphia PA 19104-6389 mpalmer@ Abstract This paper will focus on the semantic representation of verbs in computer systems and its impact on lexical selection problems in machine translation MT . Two groups of English and Chinese verbs are examined to show that lexical selection must be based on interpretation of the sentence as well as selection restrictions placed on the verb arguments. A novel representation scheme is suggested and is compared to representations with selection restrictions used in transfer-based MT. We see our approach as closely aligned with knowledge-based MT approaches KBMT and as a separate component that could be incorporated into existing systems. Examples and experimental results will show that using this scheme inexact matches can achieve correct lexical selection. Introduction The task of lexical selection in machine translation MT is choosing the target lexical item which most closely carries the same meaning as the corresponding item in the source text. Information sources that support this decision making process are the source text dictionaries and knowledge bases in MT systems. In the early direct replacement approaches very little data was used for verb selection. The source verb was directly replaced by a target verb with the help of a bilingual dictionary. In transfer-based approaches more information is involved in the verb selection process. In particular the verb argument structure is used for selecting the target verb. This requires that each translation verb pair and the selection restrictions on the verb arguments be exhaustively listed in the bilingual dictionary. In this way a verb sense is defined with a target verb and a set of .

• Báo cáo khoa học
• VERB SEMANTICS
• LEXICAL SELECTION
• Zhibiao
• báo cáo khoa học
• mô hình ngôn ngữ
• xử lý ngôn ngữ tự nhiên
• Interpreting Semantic Relations
• Noun Compounds
• ITERATION
• HABITUALITY
• VERB FORM SEMANTICS
• scientific reports
• model language
• process natural language
• 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