TAILIEUCHUNG - Báo cáo khoa học: "Endocentric Constructions and the Cocke Parsing Logic"

Methods are presented within the parsing logic formulated by Cocke to reduce the large number of intermediate constructions produced and stored during the parsing of even moderately long sentences. A method is given for the elimination of duplicate construction codes stored for endocentric phrases of different lengths. | Mechanical Translation and Computational Linguistics March 1966 Endocentric Constructions and the Cocke Parsing Logic by Jane Robinson f RAND Corporation Santa Monica California Methods are presented within the parsing logic formulated by Cocke to reduce the large number of intermediate constructions produced and stored during the parsing of even moderately long sentences. A method is given for the elimination of duplicate construction codes stored for endocentric phrases of different lengths. Automatic sentence-structure determination is greatly simplified if through the intervention of a parsing logic the grammatical rules that determine the structure are partially disengaged from the computer routines that apply them. Some earlier parsing programs analyzed sentences with routines that branched according to the grammatical properties or signals encountered at particular points in the sentence thus having the routines themselves serve as the rules. This not only required separate programs for each language but led to extreme proliferation in the routines requiring extensive rewriting and debugging with every discovery and incorporation of a new grammatical feature. More recently programs for sentence-structure determination have employed generalized parsing logics applicable to different languages and providing primarily for an exhaustive and systematic application of a set of The rules themselves can be changed without changing the routines that apply them and the routines consequently take fuller advantage of the speed with which digital computers can repeat the same sequence of instructions again and again changing only the values of some parameters at each cycle. The case in point is the parsing logic devised by John Cocke in 1960 for applying the rules of a context-free phrase-structure grammar requiring that each structure recognized by the grammar be analyzed into two and only two immediate constituents IC .1 Although all .

TỪ KHÓA LIÊN QUAN
TAILIEUCHUNG - Chia sẻ tài liệu không giới hạn
Địa chỉ : 444 Hoang Hoa Tham, Hanoi, Viet Nam
Website : tailieuchung.com
Email : tailieuchung20@gmail.com
Tailieuchung.com là thư viện tài liệu trực tuyến, nơi chia sẽ trao đổi hàng triệu tài liệu như luận văn đồ án, sách, giáo trình, đề thi.
Chúng tôi không chịu trách nhiệm liên quan đến các vấn đề bản quyền nội dung tài liệu được thành viên tự nguyện đăng tải lên, nếu phát hiện thấy tài liệu xấu hoặc tài liệu có bản quyền xin hãy email cho chúng tôi.
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.