Báo cáo khoa học: " New Ranking Algorithms for Parsing and Tagging: Kernels over Discrete Structures, and the Voted Perceptron" docx

... New Ranking Algorithms for Parsing and Tagging: Kernels over Discrete Structures, and the Voted Perceptron Michael Collins AT&T Labs-Research, Florham Park, New Jersey. mcollins@research.att.com Nigel ... at and are the same, and and are pre-terminals, then . 5 Else if the productions at and are the same and and are not pre-terminals, where is...

Ngày tải lên: 23/03/2014, 20:20

... the 1-best hypothesis) performs a Viterbi search on the FST 203 and outputs the n-best hypotheses and project C performs a projection of the FST on the output la- bels, in this case the concepts. 2.2 ... sequence, and, again, l(·) re- turns the sequence length, i.e. the number of chil- dren. Furthermore, we add two decay factors: µ for the depth of the tree and λ...

Ngày tải lên: 08/03/2014, 21:20

... to the peptide used for biochemical and structural studies. The enzyme is specific for Lys4, which is highlighted in red. R stands for either H or CH 3 , because LSD1 is active on both mono- and ... region and is discussed in the next section. The active site of all these amine oxidases is nor- mally located in the proximity of the flavin ring of the FAD cofactor and...

Ngày tải lên: 16/03/2014, 02:20

... f sib (.) and f grd (.) correspond to the features for the three kinds of scoring parts. We adopt the standard features following Li et al. (2011). For the O1 and O2sib models, the above formula ... one in the source side and the other in the target side, and denotes the process by which the left-side subtree is transformed into the right-side structure. Func...

Ngày tải lên: 16/03/2014, 19:20

... evaluated two parsing models, the generative parser and the reranking parser, on the test set, with results shown in Table 5. When trained on CTB only, the generative parser and the reranking parser ...  . The conflicts between the two grammars may lead to the problem that the selected parses based on the information of the source grammar might not be preferred...

Ngày tải lên: 17/03/2014, 01:20

... plasmid encoding either the short (LEPRa) or the long splicing variant (LEPRb) of the leptin receptor or were not transfected. Cells were serum-starved for 22 h and stimulated with the indicated cytokine ... STAT5 and the ERK kinases was induced by leptin. The weak response of STAT5 to leptin compared to that elicited by GH can be partially explained by the rather ineffec-...

Ngày tải lên: 07/03/2014, 16:20

... (B) with the extra peak. The dots above the peaks indicate the calculated positions obtained for the Pn3m structurebasedonthefirstpeakinthedif- fractogram. Table 2. Sample composition and the lattice ... reported [13,15, and references therein]. These are usually grouped into two main types, namely the discrete and bicontinuous structures. The discrete structure is...

Ngày tải lên: 17/03/2014, 09:20

... Rank means ranking reordering model. our ranking reordering model indeed significantly reduces the crossing-link numbers over the original sentence pairs. On the other hand, the performance of the ranking ... c n }, our ranking model assigns a rank f(c i , t) for each child c i , then the children are sorted according to the rank in a descending order. The ranking...

Ngày tải lên: 19/02/2014, 19:20

... on the other hand, con- siders two simple criterion: the components of a new word occur often together and rarely in con- junction with other words (Saon and Padmanabhan, 2001). Compared with the ... On the CCNs we perform the proposed algorithm to add and delete words into/from the current lexicon. The LM train- ing corpora joined with the adaptation corpus is then se...

Ngày tải lên: 20/02/2014, 07:20

... together with the archived versions, all easily downloadable by software tools running in the background. It is possible to specify the URL of the online site of a newspaper, and the start and ... ~/liougan and other words from this online nonparallel, comparable corpus of newspaper materials. We choose to use issues of the En- glish newspaper Hong Kong Standard and...

Ngày tải lên: 08/03/2014, 05:21