Báo cáo khoa học: "The Relationship Between Tree Adjoining Grammars " pdf

... MHG's. 1.1.1 Tree Adjoining Grammars Tree Adjoining Grammars differs from string rewriting sys- tems such as Context Free Grammars in that they generate trees. These trees are generated ... excised subtree replaces the foot of 8- Thus the tree obtained after adjoining j3 is as shown below. 5 /3:x s v • I The Relationship Between Tree Adjoining Grammar...

Ngày tải lên: 17/03/2014, 20:20

... The relationship between thermal stability and pH optimum studied with wild-type and mutant Trichoderma reesei cellobiohydrolase ... Tryptophan fluorescence and CD measurements of the wild-type enzyme show an optimal thermostability between pH 3.5–5.6 (T m ,62±2°C), at which the highest enzymatic activity is also observed, and ... doi:10.1046/j.1432-1033.2003.03431.x histidine side-chain...

Ngày tải lên: 31/03/2014, 07:20

... only increases by 1. Thus, simple context-free tree grammars strongly lexicalize tree adjoining grammars and themselves. 1 Introduction Tree adjoining grammars [TAG] (Joshi et al., 1969; Joshi et ... it was shown (KUHLMANN, SATTA: Tree- adjoining grammars are not closed un- der strong lexicalization. Comput. Linguist., 2012) that finitely ambiguous tree adjoining gram...

Ngày tải lên: 07/03/2014, 18:20

... tree or at any node that is not on the spine of an auxiliary tree, • any proper auxiliary tree may be adjoined into any auxiliary tree at the root or fool of that tree, • any auxiliary tree ... either an initial or auxiliary tree that is also labeled X. Both trees may be either an elementary tree or a derived tree. In adjunction an instance of an auxiliary tree in...

Ngày tải lên: 23/03/2014, 20:21

... in advance, and their number is massive. The relationship between standard RE systems and the new Open IE paradigm is analogous to the relationship between lexicalized and unlexicalized parsers. ... found between a pair of entities (e 1 , e 2 ), in- dicates a relationship. Due to the sequential nature of our RE task, H-CRF employs a CRF as the meta- learner, as opposed to a decisio...

Ngày tải lên: 08/03/2014, 01:20

... purified V-PPases. (C) Histogram of the distances between GNP pairs determined using the TEM image in (A). Fig. 8. A working model of V-PPase. The distance between C-termini of V-PPase is approximately ... conceiv- able that one GNP was bound to each C-terminus. Moreover, the distance between two GNPs (reflecting that between two V-PPase C-termini) was extrapolated from a simulation plo...

Ngày tải lên: 16/03/2014, 02:20

... 21, 581–586. Interaction between CKIa and 14-3-3 S. Clokie et al. 6984 FEBS Journal 276 (2009) 6971–6984 ª 2009 The Authors Journal compilation ª 2009 FEBS The interaction between casein kinase ... suggest that a basal level of interaction is possible between 14-3-3g and CKIa, which may be phosphorylation dependent. The interaction between CKIa and 14-3-3g was not completely abolished...

Ngày tải lên: 23/03/2014, 04:20

... them- selves, and the tree structure represents syntactic de- pendencies between pairs of tags. To validate the model, we test unsupervised learn- ing of tags conditioned on a given dependency tree structure. ... denote both the tree and its root node, c(t) the list of children of t, c i (t) the i th child of t, and p(t) the parent of t. Each tree t has a hidden state z t (in a syn-...

Ngày tải lên: 31/03/2014, 01:20

... Japanese which by nature are very regular) in every case be faced with a mechanical correlation between one irregular and one regularized lan- guage. But if we do use a pivot language, then only ... "Pinpointees" whose meanings in the light of source-target semantics (semantic re- lationships between the pair of languages) are the same with all "pinpointers," ei...

Ngày tải lên: 16/03/2014, 19:20

... define a tree adjoining grammar as follows. A tree adjoining grammar G is a paw (i,A) where i is a set of initial trees, and A is a set of auxiliary trees. A tree a ls an initial tree if it ... beDeflt~l enormously I:y v*/uablo di~*eo~iotc with them. 82 2. TREE ADJOINING GRAMMARS TAG's We now introduce tree adjoining grammars (TAG's). TAG's are mor...

Ngày tải lên: 24/03/2014, 01:21