tailieunhanh - Báo cáo khoa học: "LANGUAGE-BASED ENVIRONMENT FOR NATURAL LANGUAGE ENGLISH PARSING"

This paper introduces a special programming environment for the definition of grammars and for the implementation of corresponding parsers. In natural language processing systems it is advantageous to have linguistic knowledge and processing mechanisms separated. Our environment accepts grammars consisting of binary dependency relations and grammatical functions. Well-formed expressions of functions and relations provide constituent surroundings for syntactic categories in the form of two-way automata. . | LANGUAGE-BASED ENVIRONMENT FOR NATURAL LANGUAGE PARSING Lehtola A. Jappinen H. Nelimarkka E. Sitra Foundation and Helsinki University of Technology Helsinki Finland ABSTRACT This paper introduces a special programming environment for the definition of grammars and for the implementation of corresponding parsers. In natural language processing systems it is advantageous to have linguistic knowledge and processing mechanisms separated. Our environment accepts grammars consisting of binary dependency relations and grammatical functions. Well-formed expressions of functions and relations provide constituent surroundings for syntactic categories in the form of two-way automata. These relations functions and automata are described in a special definition language. In focusing on high level descriptions a linguist may ignore computational details of the parsing process. He writes the grammar into a DPL-description and a compiler translates it into efficient LISP-code. The environment has also a tracing facility for the parsing process grammar-sensitive lexical maintenance programs and routines for the interactive graphic display of parse trees and grammar definitions. Translator routines are also available for the transport of compiled code between various LISP-dialects. The environment itself exists currently in INTERLISP and FRANZLISP. This paper focuses on knowledge engineering issues and does not enter linguistic argumentation. INTRODUCTION Our objective has been to build a parser for Finnish to work as a practical tool in real production applications. In the beginning of our work we were faced with two major problems. First so far there was no formal description of the Finnish grammar. Second difficulty was that Finnish differs by its structure greatly from the Indoeuropean languages. Finnish has relatively free word order and syntactico-semantic knowledge in a sentence is often expressed in the inflections of the words. Therefore existing parsing methods for .

• Báo cáo khoa học
• LANGUAGE BASED ENVIRONMENT
• NATURAL LANGUAGE ENGLISH PARSING
• Lehtola
• 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