tree adjoining grammar parsing
Tài liệu Báo cáo khoa học: "The Use of Shared Forests in Tree Adjoining Grammar Parsing" pptx
... auxiliary tree is called the spine of the auxiliary tree. An elementary tree is either an initial tree or an auxiliary tree. We use a to refer to initial trees and/3 for auxiliary trees. A ... existing tag parsing algorithms, 1 Introduction We study parsing of tree adjoining grammars (tag) with particular emphasis on the use of shared forests to represent all the parse trees deriving ... existing tag parsing algorithms. 2 Tree Adjoining Grammars Ta~ is a tree generating formalism introduced in [Joshi et al., 1975]. A tag is defined by a finite set of elementary trees that...
- 10
- 554
- 0
Báo cáo khoa học: "Preserving Semantic Dependencies in Synchronous Tree Adjoining Grammar*" doc
... capability of synchronous tree adjoin- ing grammars. Computational Intelligence, 10(4). K. Vijay-Shanker and D.J. Weir. 1993. The use of shared forests in tree adjoining grammar parsing. In Proceedings ... necessary for characterizing structural de- scriptions: Tree adjoining grammars. In L. Kart- tunen D. Dowty and A. Zwicky, editors, Natural language parsing: Psychological, computational and theoretical ... References Anne Abeill6, Yves Schabes, and Aravind K. Joshi. 1990. Using lexicalized tree adjoining grammars for machine translation. In Proceedings of the 13th International Conference...
- 8
- 261
- 0
Tài liệu Báo cáo khoa học: "Some Novel Applications of Explanation-Based Learning to Parsing Lexicalized Tree-Adjoining Grammars"" doc
... approach to other lexicalized grammars. In Section 8 we conclude with some directions for future work. 2 Lexicalized Tree- Adjoining Grammar Lexicalized Tree- Adjoining Grammar (LTAG) (Sch- abes ... some novel ap- plications of Explanation-Based Learning (EBL) technique to parsing Lexicalized Tree- Adjoining grammars. The novel as- pects are (a) immediate generalization of parses in ... specialize a grammar for the ATIS domain by storing chunks of the parse trees present in a treebank of parsed examples. The idea is to reparse the training examples by letting the parse tree drive...
- 8
- 388
- 0
Tài liệu Báo cáo khoa học: "BIDIRECTIONAL PARSING OF LEXICALIZED TREE ADJOINING GRAMMARS" pdf
... of trees, called initial trees and auxiliary trees respectively. The trees in the set IuA are called elementary trees. We assume that the reader is familiar with the definitions of adjoining ... to the Production of O(n 6) Earley Parsers for Tree Adjoining Grammars. In Proceedings of the 1st International Workshop on Tree Adjoining Grammars. Dagstuhl Castle, F.R.G Satta, Giorgio, ... Lexicalization to Parsing. In Proceedings of the 1st International Workshop on Parsing Technologies. Pittsburgh, PA. To also appear under the title: Parsing with Lexicalized Tree Adjoining Grammar. ...
- 6
- 370
- 0
Tài liệu Báo cáo khoa học: "Optimizing Typed Feature Structure Grammar Parsing through Non-Statistical Indexing" doc
... grammar rules and type signaturesfor typed feature structure grammars (TFSGs). Thestatic analysis tries to predict at compile-time whichfeature paths will cause unification failure during parsing ... that of TFSGs. Whilesimpler formalisms such as context-free grammars(CFGs) also face slow all-paths parsing times whenthe size of the grammar increases significantly, TF-SGs (which generally have ... by grammar developers to simplify TFSGs themselvesat the source-code level, here we only exploit it forinternally identifying index keys for more efficientchart parsing with the existing grammar. ...
- 8
- 199
- 0
Tài liệu Báo cáo khoa học: "Prefix Probabilities from Stochastic Tree Adjoining Grammars*" pptx
... trees and .A is a set of auxiliary trees. Trees in :TU.A are also called elementary trees. We refer to the root of an elementary tree t as Rt. Each auxiliary tree has exactly one distin- guished ... context-free grammars. Computational Linguis- tics, 17(3):315-323. A. K. Joshi and Y. Schabes. 1992. Tree- adjoining gram- mars and lexicalized grammars. In M. Nivat and A. Podelski, editors, Tree ... methods for TAG parsing. An item is a tuple [N, i, j, fl, f2] rep- resenting the set of all trees t such that (i) t is a subtree rooted at N of some derived elementary tree; and (ii) t's...
- 7
- 311
- 0
Tài liệu Báo cáo khoa học: "An Alternative Conception of Tree-Adjoining Derivation*" ppt
... str!ng, the derived tree structure of the string. The formalism of tree- adjoining grammars (TAG), on the other hand, decouples these two notions of derivation tree and derived tree. Intuitively, ... Figure 1: A sample tree- adjoining grammar NP NP I I N N Adj N Adj N roasted Adj N red Adj N i I I I red pepper roasted pepper (a) (b) Figure 2: Two trees derived by the grammar of Figure ... the derived tree spec- ified when several trees are adjoined at the same node. Assume that in a given tree T at a particular address t, the predicative tree P and the k mod- ifier trees M1,...
- 10
- 338
- 0
Tài liệu Báo cáo khoa học: "Statistical Decision-Tree Models for Parsing*" ppt
... decision -tree questions, see (Magerman, 1994). 3 SPATTER Parsing The SPATTER parsing algorithm is based on inter- preting parsing as a statistical pattern recognition process. A parse tree for ... for the decision- tree growing process for the appropriate feature's tree (e.g. each tagging event is used for growing the tagging tree, etc.). After the decision trees are grown, they ... the label in the tree- bank. Table 1 shows the results of SPATTER evaluated against the Penn Treebank on the Wall Street Jour- nal section 00. Comparisons Avg. Sent. Length Treebank Constituents...
- 8
- 389
- 0
Tài liệu Báo cáo khoa học: "TREE UNIFICATION GRAMMAR" pptx
... easily and transparently. Tree adjoining grammars (TAGs) (Joshi, Levy and Takahashi, 1975, Vijay-Shanker and Joshi, 1988) possess trees as basic grammar structures, and grammar rules are used ... category as the root of the tree. These two types of trees comprise the class of elementary trees. There is a trec adjoining operation which is used to form derived trees. AppLication of this ... tree with that of the tree into which it is adjoined. In this way, a more complete description of the final tree is gradually constructed. However, in FTAG tree descriptions the internal tree...
- 9
- 422
- 0
Tài liệu Báo cáo khoa học: "STRING-TREE CORRESPONDENCE GRAMMAR: A DECLARATIVE GRAMMAR FORMALISM FOR DEFINING THE CORRESPONDENCE BETWEEN STRINGS OF TERMS AND TREE STRUCTURES" pdf
... elements of the set of subtrees of the tree : such a relation is called a string- tree correspondence. An example of a string -tree correspondence is given in fig. I. TREE: NP I [ 4 NP 2 :AP ... of grammar rules applied (as in derivation trees). The inclusion of the substring-subtree correspondence is also another characteristic of the grammar formalism. One also sees that the grammar ... STRING -TREE CORRESPONDENCE GRAMMAR: A DECLARATIVE GRAMMAR FORMALISM FOR DEFINING THE CORRESPONDENCE BETWEEN STRINGS OF TERMS AND TREE STRUCTURES YUSOFF ZAHARIN Groupe...
- 7
- 444
- 0
Tài liệu Báo cáo khoa học: "Long-Distance Scrambling and Tree Adjoining Grammars" doc
... Abeill~, Anne; and Joshi, Aravind: K., August 1988. Parsing Strategies with 'Lexiealized' Grammars: Application to Tree Ad- joining Grammars. In Proceedings of the 12 th Interna- tional ... Contezt-Sensitive Grammar Formalisms. PhD thesis, Department of Computer and Information Science, Uni- versity of Pennsylvania. - 26 - Long-Distance Scrambling and Tree Adjoining Grammars* Tilman ... elementary trees of TAG, allows us to "lexicalize" a TAG gram- mar: we can associate each tree in a grammar with a lexical item [Schabes et al 1988, Schabes 1990] 4. The tree will...
- 6
- 297
- 0
- licensing and tree adjoining grammar
- the relationship between tree adjoining grammars
- an aspect of tree adjoining grammars tag and a comparison of some formal properties of tags
- lexicalized tree adjoining grammars
- synchronous tree adjoining grammar
- probabilistic tree adjoining grammars
- tree substitution grammar derivations
- lexicalized tree adjoining grammar english
- lexicalized tree adjoining grammar
Tìm thêm: hệ việt nam nhật bản và sức hấp dẫn của tiếng nhật tại việt nam xác định các mục tiêu của chương trình xác định các nguyên tắc biên soạn tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu nội dung cụ thể cho từng kĩ năng ở từng cấp độ phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ mở máy động cơ rôto dây quấn các đặc tính của động cơ điện không đồng bộ hệ số công suất cosp fi p2 đặc tuyến tốc độ rôto n fi p2 động cơ điện không đồng bộ một pha sự cần thiết phải đầu tư xây dựng nhà máy thông tin liên lạc và các dịch vụ phần 3 giới thiệu nguyên liệu từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008 chỉ tiêu chất lượng 9 tr 25