Báo cáo khoa học: Therapeutic approaches for prion and Alzheimer’s diseases pot

... The Authors Journal compilation ª 2007 FEBS MINIREVIEW Therapeutic approaches for prion and Alzheimer’s diseases Thomas Wisniewski 1,2,3 and Einar M. Sigurdsson 2,3 1 Department of Neurology, ... Similar approaches are just emerging for prion diseases. However, a greater understanding of the role of copper and other metals in the PrP C to PrP Sc conversion is needed b...

Ngày tải lên: 07/03/2014, 10:20

... called pseudo-rules and meta-rules respec- tively and three pairwise disjoint sets of symbols: variables, non-terminals and terminals. Pseudo- rules and meta-rules provide mechanisms for build- ing ... let A w L and A w R be the two automata associated to it. Let G w L and G w R be the PCFGs equivalent to A w L and A w R , re- spectively, following (Abney et al., 1999), and...

Ngày tải lên: 23/03/2014, 19:20

... objects and see whether these strategles are different for naive and experts users. To investigate thus problem, we have looked at texts from encyclopedias {botih adult and junior) and high ... depending on whether the description was for an adult or for a junior. For an adult, an object is described with its sub-parts and their properties; for a junior, the descrip...

Ngày tải lên: 21/02/2014, 20:20

... the Association for Computational Linguistics, pages 239–247, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics Bayesian Inference for Zodiac and Other Homophonic ... Ravi and Kevin Knight University of Southern California Information Sciences Institute Marina del Rey, California 90292 {sravi,knight}@isi.edu Abstract We introduce a novel Bayesian...

Ngày tải lên: 07/03/2014, 22:20

... of merit (FOM). Later work introduced other FOMs formed from PCFG data (Kochman and Kupin, 1991); (Magerman and Marcus, 1991); and (Miller and Fox, 1994). More recently, we have seen parse ... parses for the same substring, before it would generate even one parse for another area. The reason for that is that the figures of independent merit are frequently good as relativ...

Ngày tải lên: 08/03/2014, 06:20

... part-of-speech-specific layer, which con- tains aspectual information for verbs; and copulas, support expressions, and slot filling information for nouns and adjectives. • The “Other” layer, containing special ... carry out. They just moan on and on about Fergie this and Fergie that and I ’ve simply had enough. 136 3.5 Slot Fillers: GOV and X FrameNet annotation contains some...

Ngày tải lên: 08/03/2014, 21:20

... the presence and absence of 4-ddma-atc. The loop segment 100–105 that switches conformations in other ligand-free and ligand-bound TetR structures is only slightly displaced in ligand-free TetR(K 64 L 135 I 138 ) ... the ligand, the presence of two alternative side chain confor- mations for Asn82 in the 4-ddma-atc-bound structure versus a single conformation in ligand-free TetR(K 64 L 1...

Ngày tải lên: 16/03/2014, 00:20

... turns. 4 Conclusions and Future Work The BEETLE II system we present was built to serve as a platform for research in computational linguistics and tutoring, and can be used for task- based evaluation ... 2010. c 2010 Association for Computational Linguistics BEETLE II: a system for tutoring and computational linguistics experimentation Myroslava O. Dzikovska and Johanna D....

Ngày tải lên: 17/03/2014, 00:20

... methods and results has accumulated around it, and these can be clearly compared with one another. We use the standard test set for this task, a 24,115-word subset of the Penn Treebank, for which ... Bayesian framework and show how EM can be used to learn good POS taggers for Hebrew and English, when provided with good initial conditions. They use language specific information (l...

Ngày tải lên: 17/03/2014, 01:20

... modeling module - for computer scientists, • the Hidden-Markov-Models (HMM) module and Topic-Focus module - for both computer scientists and linguists. 2 The Learning Path For each module, the ... follows the same design rules in all modules and the layout and format decisions are consistent. A color and a font style are associated to only one kind of information (e.g. color r...

Ngày tải lên: 17/03/2014, 02:20