Báo cáo khoa học: "ZERO MORPHEMES IN UNIFICATION-BASED COMBINATORY CATEGORIAL GRAMMAR" potx

... while maintaining the efficiency of the rule approach in terms of parsing. 2. Compiling Zero Morphemes In natural language processing, simply proposing zero morphemes at each juncture in a given ... given input string during parsing would be a nightmare of inefficiency. However, using the fact that there are only a few binary rules in Categorial Grammar and each zero morp...

Ngày tải lên: 24/03/2014, 02:20

... likelihood Block maximal init Block minimal init Local minimal init Local maximal init Figure 4: Training likelihood vs. iteration. Each sampling method was initialised with both minimal and maximal ... Gibbs sampler for training, which re- peatedly samples for every node in every training tree a binary value indicating whether the node is or is not a substitution point in the tree’s deri...

Ngày tải lên: 17/03/2014, 00:20

... supplied information about which sentence to include in an extract and which not to, whereas an unsupervised approach blindly chooses sentences according to some selection scheme. An interesting question ... sentences at t(u)  4 Combining ProbDT and DBS Combining ProbDT and DBS is done quite straight- forwardly by replacing Reduce-Redundacy with ProbDT. Thus instead of picking up a senten...

Ngày tải lên: 17/03/2014, 08:20

... provided insight into the perfor- mance of a stochastic tagger. 1 Introduction Machine-readable dictionaries contain a rich set of relationships between their senses, and indicate them in a ... to identify instances of it using a probabilistic tagger [2]. The hypothesis is that if the word that's being defined (the definiendum) occurs within the text of its own definition, bu...

Ngày tải lên: 31/03/2014, 06:20

... forest is Linear Indexed Grammar (LIG) a. Like Indexed Grammars (IG), in a LIG stacks containing indices are associated with nonterminals, with the top of the stack being used to determine the ... ~ re- placing a. The remaining children inherit the bounded stacks given in the production. The second form of production indicates that if a non- terminal A has a stack containing a sequ...

Ngày tải lên: 08/03/2014, 18:20

... CFG rule, at minimum) is part of the subtree contain- ing its parent. The Gibbs sampler considers ev- ery non-terminal, non-root node c of each parse tree in turn, freezing the rest of the training data and ... in Perl. TSG subtrees were flat- tened to CFG rules and reconstructed afterward, with identical mappings favoring the most proba- ble rule. For pruning, we binned nonterminals ac- c...

Ngày tải lên: 17/03/2014, 02:20

... to main- tain certain well defined proof-theoretic and se- mantic properties of our inference system, there are other reasons for using this strategy instead of disallowing Thinning. Indeed, ... directly defined by input strings as in Section 4.2 never need Contraction. In fact, each time we use a hypothesis in the proof, either we consume a corresponding word in the input stri...

Ngày tải lên: 17/03/2014, 20:20

... carcinomas; IAP, inhibitor of apoptosis protein; JNK, c-Jun NH 2 -terminal kinase; KIP, kinase inhibitor proteins; MEK, MAPK ⁄ ERK kinase; MKK, MAPK kinase; MKP-1, mitogen-activated protein kinase ... Japan Introduction The epidermal growth factor receptor (EGFR) is com- posed of an extracellular ligand-binding domain, a transmembrane domain and an intracellular tyrosine kinase domain. The bi...

Ngày tải lên: 16/02/2014, 09:20

... (2008) Mapping alpha-helical induced folding within the intrinsically dis- ordered C-terminal domain of the measles virus nucleo- protein by site-directed spin-labeling EPR spectroscopy. Proteins 73, ... B, Finet S & Longhi S (2005) The intrinsically disordered C-terminal domain of the measles virus nucleoprotein interacts with the C-terminal domain of the phosphoprotein via two distinct...

Ngày tải lên: 18/02/2014, 04:20

... are linked to accessory proteins (e.g. zonula occludens proteins and cingulin), forging a connection to the actin cytoskeletons of endothelial cells [8]. Occlu- din is an  65 kDa phosphoprotein ... Claudins are  22 kDa phosphoproteins that are thought to help maintain high transendothelial electrical resistance. Three types of claudins (claudin1 ⁄ 3, claudin5 and claudin12) are found in ....

Ngày tải lên: 18/02/2014, 11:20