Báo cáo khoa học: "Interactive grammar development with WCDG" pptx

... has been achieved. 4 Grammar development with XCDG The development of a parsing grammar based on declarative constraints differs fundamentally from that of a derivational grammar, because its ... induced grammar re- quires large amounts of training material and the development focuses on global changes to the prob- ability model, a handwritten grammar could in prin- ciple be...

Ngày tải lên: 23/03/2014, 19:20

... labeled with higher-level constituent brackets, a directly induced grammar parses with 70% accuracy, whereas an adapted grammar parses with 72% accuracy, which is 6% lower than the score of a grammar ... a directly in- duced grammar parses test sentences with 66% accuracy, whereas an adapted grammar parses with 91% accuracy, which is only 2% lower than the score of...

Ngày tải lên: 20/02/2014, 19:20

... NP, with NP NP → PP, romance PP With the change, only the following rule is extracted: NP NPB NNP romance PP IN with NP NPB DT the JJ snowy NN egret 白鹭 鸶 的 爱 Figure 1: A sentence fragment pair with ... a pruning bin with guesses of English words to insert without any source-side lexical evidence. The most obvious way of eliminating problem- atic unary rules would be converting...

Ngày tải lên: 17/03/2014, 00:20

... EFFICIENT INCREMENTAL PROCESSING WITH CATEGORIAL GRAMMAR Abstract Some problems are discussed that arise for incremental pro- cessing using certain flezible categorial grammars, which in- volve ... allows a subject NP to com- bine with a transitive verb before the verb has com- bined with its object. In (3b), a sentence em- bedding verb is composed with a raised subject NP....

Ngày tải lên: 17/03/2014, 08:20

... Representation of Implicit Grammars 2.1 All-Fragments Grammars We consider an all-fragments grammar G (see Figure 1(a)) derived from a binarized treebank B. G is formally a tree-substitution grammar (Resnik, ... coarse grammar G C is a minimal PCFG grammar com- posed of the base treebank symbols X and the minimal depth-1 binary rules X → Y Z (and with the same level of annotation as...

Ngày tải lên: 23/03/2014, 16:20

... irritating. In pursuit of efficiency, ICONOCLAST employs a top-down generator coupled with a unification grammar. The grammar adheres strictly to Oc- cain's razor: features or rules are admitted ... Proceedings of EACL '99 Generating referring expressions with a unification grammar Richard Power Information Technology Research Institute University of Brighton ... th...

Ngày tải lên: 24/03/2014, 03:20

... allosteric DNAzyme with dual RNA-cleaving and DNA-cleaving activities is very challenging. We used an in vitro-selected pistol-like (PL) DNAzyme as a DNA scaffold for designing a DNAzyme with dual catalytic ... As compared with PL DNAzyme, DRc DNA- zyme function seemed to have decreased sensitivity to the reaction temperature. DRc DNAzyme exhibited a broad functional range for temperatu...

Ngày tải lên: 16/02/2014, 15:20

... cisplatin DNA treatment correlated with the occurrence of sequence motifs forming stable bifunc- tional adducts with the drug (namely, GG and AG doublets) within the target sites. Binding of ... protein with cer- tain response elements can be controlled by changes in DNA topology inducing formation of non-B DNA structures within the binding sites [11,12]. Interactions of p53 with DNA...

Ngày tải lên: 19/02/2014, 05:20

... the RDDT R strain were measured with all recombinant pro- teins, namely testosterone hydroxylation and DDT meta- bolism. Testosterone was hydroxylated at the 2b position with little quantitative variation ... 271, 1250–1257 (2004) Ó FEBS 2004 doi:10.1111/j.1432-1033.2004.04025.x relation with xenobiotic metabolism or with metabolism of endogenous compounds [24,25]. Models for CYP51 we...

Ngày tải lên: 19/02/2014, 12:20

... rate with targeted human annotation. In AMTA. Valentin I. Spitkovsky, Hiyan Alshawi, and Daniel Juraf- sky. 2011. Lateen em: Unsupervised training with multiple objectives, applied to dependency grammar induction. ... different metrics M k (h) for evaluating the quality of h. Without loss of gen- erality, we assume metric scores are bounded be- tween 0 and 1, with 1 being perfect. Eac...

Ngày tải lên: 19/02/2014, 19:20