Tài liệu Báo cáo khoa học: "Online Large-Margin Training of Dependency Parsers" docx

... Proceedings of the 47th Annual Meeting of the ACL and the 4th IJCNLP of the AFNLP, pages 360–368, Suntec, Singapore, 2-7 August 2009. c 2009 ACL and AFNLP Semi-supervised Learning of Dependency ... x. By relating the sum of the scores of all possible trees to counting the number of spanning trees in a graph, it can be shown that Z x is the determinant of the Kirchoff matrix...

Ngày tải lên: 20/02/2014, 07:20

... of EM contain valuable information about the incor- rect biases of these models. However, EM is chang- ing hundreds of thousands of parameters at once in a non-trivial way, so we need a way of ... face of label symmetry and ran experiments exploring the effectiveness of EM as a function of the amount of data. Finally, we hope that setting up the general framework to understa...

Ngày tải lên: 20/02/2014, 09:20

... important but often ignored requirement of developmental compatibility. One of the most significant findings in child lan- guage research of the past decade is that different aspects of syntactic ... revises a set of syntactic_rules upon presentation of partially bracketed sentences. Note that however, the state of the learning sys- tem at any time is still a single set o...

Ngày tải lên: 20/02/2014, 19:20

... agent _of take put fred speech-action mental-action consistof hand foot source _of speech-action destination _of speech-action power human speed slow mass human Figure 2. Examples of ... than 90% of the questions [12]L In other terms, surface semantics seems to capture what, at first glance, a human reader understands of a piece of text. In[26] , the usefulness...

Ngày tải lên: 21/02/2014, 20:20

... parent of x j . T = {(x t , y t )} T t=1 denotes the training data. We follow the edge based factorization method of Eisner (1996) and define the score of a dependency tree as the sum of the score of ... of parent node in dependency tree. c-word: word of child node. p-pos: POS of parent node. c-pos: POS of child node. p-pos+1: POS to the right of parent in sentence. p...

Ngày tải lên: 20/02/2014, 15:20

... pro- vide state -of- the-art performance across multiple languages. However, the parsing algorithms re- quire that the score of a dependency tree factors as a sum of the scores of its edges. This ... Online Learning of Approximate Dependency Parsing Algorithms Ryan McDonald Fernando Pereira Department of Computer and Information Science University of Pennsylvania Philadelphia,...

Ngày tải lên: 22/02/2014, 02:20

... the processing of apicoplast protein leader sequence. Inhibition of any of these activities could contribute to MA interference in the maturation of the parasite. Polypharmacology of MA The observed ... mixing 100 l L of 100 l m ZnSO 4 .H 2 O, 200 lL of 0.3 m Na 2 CO 3 pH 10, 10 lL of com- pound (MA or EDTA as control) and 6 lL of Eriochrome Black T (5 mgÆmL )1 in ethanol, p...

Ngày tải lên: 14/02/2014, 14:20

... Leu23 of the CT-extension of the rmErv-C +CT molecule with a minimum distance of 1.9 A ˚ between two atoms of the two leucines (Fig. 8A). Because the Leu23 residue of the CT-extension of the ... into the unprimed subsites of Erv-C with Leu23 in the S2 pocket, considering the specificity of Erv-C towards a Leu residue [17]. The mode of interactions of mini-chain of human l...

Ngày tải lên: 14/02/2014, 14:20

... recruitment of MOF to recently transcribed regions, especially at the 3¢ ends of genes where H3-K36me3 is enriched [128]. In mammalian cells MOF also exists as part of a sepa- rate MOF–MSLv1 complex ... enrichment of AcH4-K16 within transcribed genes is closely correlated with binding of both MOF and Tip60 (equivalent to Esa1 in yeast NuA4) [124,130]. However, in human cells depleti...

Ngày tải lên: 14/02/2014, 18:20

... oxidoreductase function of the CXXXC motif of human Sco proteins could therefore be impli- cated not only in the maturation of the Cu A site of Cox2 but also in the maintenance of cellular copper homeostasis. The ... NJ (2011) The essential role of the Cu(II) state of Sco in the maturation of the Cu(A) center of cytochrome oxi- dase: evidence from H135Met and H135SeM variant...

Ngày tải lên: 14/02/2014, 18:20