Báo cáo khoa học: "Extraction of Tree Adjoining Grammars from a Treebank for Korean" pdf

... grammar development have been taken during last decades. Automatic grammar development means that a system extracts a grammar from a Treebank which has an implicit Treebank grammar. The grammar ... extracting grammars from a Tree- bank A feature structure is a way of representing gram- matical information. Formally feature structure consists of a specificati...

Ngày tải lên: 23/03/2014, 18:20

... from that for topicalisation in the example given above. an encoding of (largely equivalent) lexical rules that are an integral part of a nonmonotonic inheritance hierarchy that stands as a description ... in no way restricted to/TAG: it can be readily adapted for application in the context of any feature-based lexicalist grammar formalism. Using this approach, the dativ...

Ngày tải lên: 17/03/2014, 09:20

... literature. 3 For instance, Fujiyoshi and Kasai (2000) show that linear, complete monadic context-free tree grammars generate exactly the tree- adjoining languages via a normal form for spine grammars. Separately, ... brevity and by analogy with embedded pushdown au- tomata (Schabes and Vijay-Shanker, 1990), an- other automata-theoretic characterization of the tree- adjoinin...

Ngày tải lên: 31/03/2014, 20:20

... less balanced. In our approach we applied – besides a standard classification al- gorithm (Naive Bayes) – also a classification al- gorithm designed specifically to deal with imbal- anced datasets. In ... machine learning, is that the dataset on which machine learning needs to be applied is much smaller and less imbalanced. A second advantage of applying a grammar first, is that the gra...

Ngày tải lên: 08/03/2014, 21:20

... importance of the problem using examples from Tex- tual Entailment tasks, and present A Sentence Transformation Rule Learner (ASTRL), a ma- chine learning algorithm that uses a syntac- tic analysis ... Bayraktar et al., 1998) and others. A review of the first line of research is given in (Say and Akman, 1997). In (Bayraktar et al., 1998) the WSJ PennTreebank corpus (Marcus et a...

Ngày tải lên: 17/03/2014, 02:20

... GB, as a com- petence theory, emphatically does not specify the nature of the language processing mechanism. In fact, "proofs" that transformational grammar is inadequate as a linguis- ... examination of language specific parameters (using head directionality in order to determined directionality of gives, for exam- pie), and consultation of UG parameters (for ins...

Ngày tải lên: 17/03/2014, 20:20

... ment auxiliary trees (Kroch, 1989), which are meant to exhaustively characterize the auxil- iary trees used in any natural language TAG grammar. 2 An athematic auxiliary tree does not subcategorize ... adjoin at a certain 'complement' ad- junction site in a host elementary tree, which must at least be a maximal projec- tion of a lexical category. 3. The foot no...

Ngày tải lên: 31/03/2014, 04:20

... extension: tailor-made genes using the polymerase chain reaction. Biotechniques 8, 528–535. 34 Kanaya S, Katsuda C, Kimura S, Nakai T, Kitakuni E, Nakamura H, Katayanagi K, Morikawa K & Ikehara M ... localized fashion as revealed by mutational and X-ray crystallographic analyses Muhammad S. Rohman 1 , Takashi Tadokoro 1 , Clement Angkawidjaja 1 , Yumi Abe 1 , Hiroyoshi Matsumura 2,3 , Yui...

Ngày tải lên: 18/02/2014, 13:20

... to a mass spectrometer equipped for ESI; (c) fragmentation of individual peptides by collision-acti- vated dissociation (CAD); and (d) a search of the resulting tandem mass spectra against a database ... capture of the electron into an amide carbonyl group that is hydrogen bonded to the protonated side chain of a basic amino acid. The resulting radical anion abstracts a pr...

Ngày tải lên: 18/02/2014, 16:20

... shut off. By contrast, when there is demand for large excesses of a particular type of tRNA, as in the PSG, and sufficient quantities of transcription factors are available, transcription from all ... derivative of tRNA Gly 1 -1 has a single TATA ele- ment at )130 bp and is transcribed to the same levels as the parent. pmutRKX3 has the single TATATAA element of pRKX3 mutated...

Ngày tải lên: 20/02/2014, 02:21