Tài liệu Báo cáo khoa học: "Phrase-Based Backoff Models for Machine Translation of Highly Inﬂected Languages" docx

... haveused backoff models for combining in-domain and42out -of- domain data for the purpose of bootstrap-ping a part -of- speech tagger for Chinese, outper-forming standard methods such as EM.4 Backoff ... Phrase-Based Backoff Models for Machine Translation of Highly Inﬂected LanguagesMei YangDepartment of Electrical EngineeringUniversity of Washin g tonSeattle, WA, USAyangmei@ee.washington.eduKatrin ... known and unknown words dif-ferently and propose a backoff model for phrase-based translation. 3 Backoff Models Generally speaking, backoff models exploit rela-tionships between more general...

Tài liệu Báo cáo khoa học: Pathways and products for the metabolism of vitamin D3 by cytochrome P450scc docx

... Identiﬁcation of 20,23-dihydroxyvitamin D3. (A) Expansion of proton–proton COSY correlations for 3-CH and 23-CH; (B) expan-sion of proton–proton TOCSY correlations for 3-CH and 23-CH; (C)expansion of ... above.Preparation of minor products to test assubstrates for P450sccMinor metabolites of vitamin D3 were puriﬁed from50 mL incubations of 100 lm vitamin D3 with 2 lm P450,as described above for the ... School of Biomolecular, Biomedical and Chemical Sciences, The University of Western Australia, Crawley, Australia2 Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee...

Tài liệu Báo cáo khoa học: "An Approximate Approach for Training Polynomial Kernel SVMs in Linear Time" doc

... Jie-Chi Yang Yue-Shi Lee Dept. of Computer Science and Information Engineering Graduate Institute of Net-work Learning TechnologyDept. of Computer Science and Information Engineering National ... D-dimension space of the i-th example, and yi is the label of xi either positive or negative. The training of SVMs involves in minimize the following object (primal form, soft-margin) (Vapnik, ... polynomial kernel of degree d is given by (4). diixxdotxxK )),(1(),( += (4) One can design or employ off-the-shelf kernel types for particular applications. In particular to the use of polynomial...

Tài liệu Báo cáo khoa học: "Generalized Hebbian Algorithm for Incremental Singular Value Decomposition in Natural Language Processing" potx

... posi-tion of the endpoint of the (normalised) vectorover a number of training iterations, or simplylength of the (unnormalised) vector, since along vector is one that is being reinforced bythe ... system gov-erns the surface form of word bigrams, and wemight hope that it would be possible to discernfrom word bigrams something of the nature of the rules. In performing dimensionality reduc-tion ... describe a number of techniques for including new data in an ex-isting decomposition. Their techniques app lyto a situation in which SVD has been per-formed on a collection of data, then new...

Tài liệu Báo cáo khoa học: "Incremental Parsing Models for Dialog Task Structure" doc

... These types of infor-mation provide rich clues for building dialog mod-els (Grosz and Sidner, 1986). Dialog models canbe built of ine (for dialog mining and summariza-tion), or online (for dialog ... historyNbestFstart!completeconnection!pathsshift!reduceFigure 5: Performance of parse-based methods for subtask tree buildingFigure 5 shows the performance of the differentmethods for determining the subtask tree of the di-alog. Wider ... However, performance of all themethods for dialog act prediction is too low to beuseful at the moment. In future work, we will ex-plore improved models for this task that make use of global information...

Tài liệu Báo cáo khoa học: "Incorporating Context Information for the Extraction of Terms" pdf

... information gained from the textual context of the candidate term. 2 Context information for terms The idea of incorporating context information for term extraction came from that "Extended ... examined string, lal the length of a in terms of number of words, f(a) the frequency of a in the corpus, Ta the set of candidate terms that contain a, P(T~) the number of these candidate terms. ... ratio for the extraction of two-word English terms. (Frantzi and Ananiadou, 1996), besides the frequency of occurrence, also consider the frequency of the candidate string as a part of longer...

Tài liệu Báo cáo khoa học: How to remain nonfolded and pliable: the linkers in modular a-amylases as a case study ppt

... linkertotal energy (peptide and solvation) of the conformers (for a given sequence) can vary signiﬁcantly (up toFig. 2. Predicted conformers of a-amylase linkers. The models illus-trated are from Daphnia ... related to the avoid-ance of formation of stable salt bridges betweenoppositely charged residues brought into contact in theﬂexible conformers. However, the distribution of theseresidues is nonrandom ... extremeopposites for the dynamics of a polypeptide chain. Theunusual abundance of Gly can be explained by theabsence of a side chain, allowing dihedral angles notaccessible to other residues and therefore...

Tài liệu Báo cáo khoa học: Enzymatic and electron paramagnetic resonance studies of anabolic pyruvate synthesis by pyruvate: ferredoxin oxidoreductase from Hydrogenobacter thermophilus doc

... addition of CoAsolution). The Kmvalue for CoA of the OGORenzyme is reported to be 80 lm [30]. Thus, decarboxyl-ation of 2-oxoglutarate can proceed as a result of CoAcontamination of the acetyl-CoA ... A340as a result of NADHoxidation was measured. One unit of enzyme activity wasdeﬁned as the reduction of 1 lmolÆmin)1 of NADH(corresponding to the carboxylation of 1 lmolÆmin)1 of acetyl-CoA).Quantiﬁcation ... Ishii1andYasuo Igarashi11 Department of Biotechnology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan2 Department of Chemistry, School of Medicine, Juntendo University,...

Tài liệu Báo cáo khoa học: Nucleolin/C23 mediates the antiapoptotic effect of heat shock protein 70 during oxidative stress pptx

... fragmentation of theirnuclei. The percentage of apoptotic cells was calculated asthe number of apoptotic cells divided by the total number of cells counted. A minimum of 500 cells were counted for each ... X (2009)ATP-binding domain of heat shock protein 70 is essen-tial for its effects on the inhibition of the release of thesecond mitochondria-derived activator of caspase andapoptosis in C2C12 ... in accordance with theNational Institutes of Health Guide for the Care and Use of Laboratory Animals. All efforts were made to minimizethe number of animals used and their suffering.H2O2pcDNA3.1100100...

Tài liệu Báo cáo khoa học: Accessibility changes within diphtheria toxin T domain when in the functional molten globule state, as determined using hydrogen⁄deuterium exchange measurements pdf

... identiﬁcation of the core of the pro-tein in the N state and the evolution of the overallstructure of the protein in the MG state. This degree of resolution is unprecedented for the T domain of thediphtheria ... MGstate for functional purpose [4,7–9]. The MG state is highly dynamic. Thus, high-resolution structural meth-ods for analyzing the MG state are not applicable. Themethod of choice for analyzing ... 1). Therefore, we employed pepsin and proteaseXVIII digestion in the analysis of local exchange kinet-ics. Changes of isotopic proﬁles as a function of exchange time are shown in Fig. 2 for representativepeptides....

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