Tài liệu Báo cáo khoa học: "Dependency Hashing for n-best CCG Parsing" doc

... gold and auto POS tags for the C&C n-best parser. # denotes the inclusion of dependency hashing. Test data Training data no hashing hashing no hashing 86.83 86.35 hashing 87.21 87.15 Table ... is a particular challenge for parsers and n-best CCG parsing. We find that this mismatch causes many n-best CCG parses to be semanti- cally equivalent, and describe a hashing...

Ngày tải lên: 19/02/2014, 19:20

... 2009. c 2009 Association for Computational Linguistics EM Works for Pronoun Anaphora Resolution Eugene Charniak and Micha Elsner Brown Laboratory for Linguistic Information Processing (BLLIP) Brown ... 1998). The data annotated for the Ge research is used here for test- ing and development data. Also, there are many overlaps between their formulation of the problem and ours. For...

Ngày tải lên: 22/02/2014, 02:20

... performed by hand. They adjusted for this by introducing on the order of one or two dozen language-specific transformation rules to complete target parses for unaligned words and to account for ... supervised learn- ing for limited training data. 1 Introduction For English and a handful of other languages, there are large, well-annotated corpora with a vari- ety of linguistic informa...

Ngày tải lên: 20/02/2014, 07:20

... =  i f i log(  c p(vt i |c)p(n i |c)p(c)). (2) 3 This formulation is based on the formulation presented in Rooth et al. (1999) for English. 408 We iteratively update the probabilities using the EM algorithm. For the update procedures ... baseline for the testing set. 5 Comparison with Previous Studies Since many previous studies on Japanese NER used 5-fold cross validation for the I...

Ngày tải lên: 20/02/2014, 09:20

... malignant transformation. Lectin microarray – a powerful technology for selection of lectins for cancer glyco-biomarkers The lectin microarray system is an emerging technique for analyzing glycan ... microarray system is the best tool for a ‘cell profiler’, and it is expected to be applicable for selection of cancer-specific lectins and for quality control of stem cells before trans...

Ngày tải lên: 16/02/2014, 08:20

... were assembled with genedoc 2.7 [41]. The tools provided with the ExPASy Molecular Biology Server of the Swiss Institute of Bioinformatics (http:// www.expasy.org) were used for the analyses of DNA ... rates. Prior probabilities for all trees were equal. Metropolis-coupled Markov chain Monte Carlo sampling was performed with one cold and three heated chains that were run for 1 000 000 g...

Ngày tải lên: 18/02/2014, 08:20

... London) for providing the Lanp clone, which was produced from a cDNA originally provided by Dr A. Matilla (ICH, London), Filippo Prischi for help with the gromacs software, and Dr L Masino for helpful ... into the groove formed by the concave surface of the LRR domain. Stabilizing interactions could form between His230 of PP2A-C and Asp119 and Asn94 of Anp32a. A salt bridge could form b...

Ngày tải lên: 18/02/2014, 17:20

... cleft formed by the two domains. A common functional conformational change has been reported in this protein family, which involves switching from an open form to a sugar-transporter bindable form, ... [11,15]. A common drastic conformational change is found in this protein family, which participates in switching from an open form to a closed form [16]. In EcoMBP, the closed form has been obs...

Ngày tải lên: 19/02/2014, 00:20

... IRES complex forma- tion, RACK1 is pushed downwards and forms a con- tact to the rear of the mRNA platform of the 40S subunit, to the region ascribed to the rpS0 protein. The conformational change ... integrin b and other receptors, and it may further serve as a plat- form to recruit ribosomes for local translation of speci- fic mRNAs, for example in focal adhesions [36]. In eukaryotes, a...

Ngày tải lên: 19/02/2014, 17:20

... product P40 of MPN142, formerly called ORF6 gene. Combining mass spectrometry with a method for sulfonating specifically the free amino terminal group of proteins, the cleavage site for a typical signal ... SPase typical for Gram-positive bacteria or for Gram-negative bacteria (such as LepB) has been identified in M. pneumoniae, although a SPase I activity has been shown to be essential...

Ngày tải lên: 19/02/2014, 18:20