TAILIEUCHUNG - Báo cáo khoa học: "STRATEGIES FOR ADDING CONTROL INFORMATION TO DECLARATIVE GRAMMARS"

Strategies are proposed for combining different kinds of constraints in declarative grammars with a detachable layer of control information. The added control information is the basis for parametrized dynamically controlled linguistic deduction, a form of linguistic processing that permits the implementation of plausible linguistic performance models without giving up the declarative formulation of linguistic competence. The information can be used by the linguistic processor for ordering the sequence in which conjuncts and disjuncts are processed, for mixing depth-first and breadth-first search, for cutting off undesired derivations, and for constraint-relaxation. . | Strategies for adding Control Information TO DECLARATIVE Grammars Hans Uszkoreit University of Saarbriicken and German Research Center for Artificial Intelligence DFKI W-6600 Saarbriicken 11 FRG uszkoreit@ Abstract Strategies are proposed for combining different kinds of constraints in declarative grammars with a detachable layer of control information. The added control information is the basis for parametrized dynamically controlled linguistic deduction a form of linguistic processing that permits the implementation of plausible linguistic performance models without giving up the declarative formulation of linguistic competence. The information can be used by the linguistic processor for ordering the sequence in which conjuncts and disjuncts are processed for mixing depth-first and breadth-first search for cutting off undesfred derivations and for consttaint-relaxation. 1 Introduction Feature term formalisms FTF have proven extremely useful for the declarative representation of linguistic knowledge. The family of grammar models that are based on such formalisms include Generalized Phrase Structure Grammar GPSG Gazdar et al. 1985 Lexical Functional Grammar LFG Bresnan 1982 Functional Unification Grammar FUG Kay 1984 Head-Driven Phrase Structure Grammar HPSG Pollard and Sag 1988 and Categorial Unification Grammar CUG Karttunen 1986 Uszkoreit 1986 Zeevat et al. 1987 . Research for this paper was carried out in parts at DFKI in the project Disco which is funded by the German Ministry for Research and Technology under Grant-No. rrw 9002. Partial funding was also provided by the German Research Association DFG through the Project BiLD in the SFB 314 Artificial Intelligence and Knowledge-Based Systems. For fruitful discussions we would like to thank our colleagues in the projects Disco BiLD and LILOG as well as members of audiences at Austin Texas and Kyoto Japan where preliminary versions were presented. Special thanks for valuable comment and suggestions

• Báo cáo khoa học
• STRATEGIES FOR ADDING CONTROL
• INFORMATION TO DECLARATIVE GRAMMARS
• Hans Uszkoreit
• 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
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• Lexical chain
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• CKY kết hợp xác suất
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