Báo cáo khoa học: "Efficient Minimum Error Rate Training and Minimum Bayes-Risk Decoding for Translation Hypergraphs and Lattices" pptx

... the ACL and the 4th IJCNLP of the AFNLP, pages 163–171, Suntec, Singapore, 2-7 August 2009. c 2009 ACL and AFNLP Efficient Minimum Error Rate Training and Minimum Bayes-Risk Decoding for Translation ... incorporate the error criterion are Minimum Error Rate Train- ing (MERT) (Och, 2003) and Minimum Bayes- Risk (MBR) decoding (Kumar and Byrne, 2004). The...

Ngày tải lên: 23/03/2014, 16:21

... 0.85 and average recall ratio r = 0.74. Our translation decoder and MBR procedures are im- plemented using OpenFst (Allauzen et al., 2007). 6 LMBR Speed and Performance Lattice MBR decoding performance ... exactly through simple transformations of word sequences to sequences of n-grams. This yields a novel implementation of lattice minimum Bayes-risk decoding which is fast an...

Ngày tải lên: 23/03/2014, 16:20

... sig- nalling [3–5] and of cytokines such as interleukin (IL)-6 [6]. It is also involved in transformation and tumour progression [7] and its activation, as detected in breast, head and neck, lung and colon ... (con) and the dead cells were counted after 16, 24 and 48 h of culture using trypan blue staining. (C) Cells were treated with 0.5, 1 and 2 lg of hpST3dODN and 1 and...

Ngày tải lên: 18/02/2014, 08:20

... conditions. Substrate was mixed with ribozyme in Tris ⁄ HCl (pH 7.5) buffer, hea- ted at 90 °C for 1 min and incubated at 37 °C for 15 min. Reactions were started by addition of MgCl 2 and spermine, portions ... respective substrate, SU9 or SG9 in Tris ⁄ HCl (pH 7.5) buffer, heated at 90 °C for 1 min followed by incubation at 37 °C for 15 min. The second ligation substrate S17F5 c...

Ngày tải lên: 20/02/2014, 01:20

... given vector. Ravichandran et al. (2005) showed that the Lo- cality Sensitive Hash (LSH) procedure of Charikar (2002), following from Indyk and Motwani (1998) and Goemans and Williamson (1995), ... large-scale distribu- tional semantics (Bhagat and Ravichandran, 2008; Van Durme and Lall, 2009; Pantel et al., 2009; Lin et al., 2010; Goyal et al., 2010; Bergsma and Van Durme, 2011),...

Ngày tải lên: 20/02/2014, 04:20

... effects and facilitated site-specific delivery [28]. Therefore, if applicable, local delivery is likely to be a more cost-efficient strategy for siRNA delivery in vivo than systemic administration. For ... ‘enhanced permeation and retention effect’ [37]. siRNA, in its native form or formulated in a delivery carrier, must then diffuse through the extracellular matrix, a dense network of...

Ngày tải lên: 06/03/2014, 01:23

... C j m,i } 10. endfor 11. endfor 12. endfor Figure 5: A bottom-up chart parser for Model 0. SCOREG is the scoring function for grandchild parts. We use the g-span identities as shorthand for their chart ... sibling grandchild tri-siblinggrand-sibling Specifically, Sections 4.1, 4.2, and 4.3 describe parsers that, respectively, factor trees into grand- child parts, grand-sibling parts,...

Ngày tải lên: 07/03/2014, 22:20

... degenerate label z n in the n-th column such that y n ∈ I(z n ), and we can use λ(z n ) and ¯ λ(z n ) instead of λ(y n ) and ¯ λ(y n ). We compute λ(y n ) and ¯ λ(y n ) by using the forward and ... with the easiest-first strategy for tagging sequence data. In Proceedings of HLT/EMNLP, pages 467–474. Andrew J. Viterbi. 1967. Error bounds for convo- lutional codes and an asymep...

Ngày tải lên: 07/03/2014, 22:20

... per- formance when training and testing on sentences of length ≤ 15 and the first results for such a parser trained and tested on sentences of length ≤ 40. We also show that the use of SGD for training ... ourselves to short sentences, but we do provide results both for training and testing on sentences of length ≤ 15 (WSJ15) and for training and testing on sentence...

Ngày tải lên: 08/03/2014, 01:20

... electrophoresis and stained with ethidium bromide. For experiments performed in co- amplification conditions two pairs of primers P1 BACE and P2 BACE ,forBACEmRNA(20l M ), and P1 GAPDH and P2 GAPDH , for ... the biosynthesis of b-secretase and for the exclusion of the formation of toxic b-amyloid peptides in HEK293 cells. Materials and methods Construction of plasmids for r...

Ngày tải lên: 08/03/2014, 08:20