Báo cáo khoa học: A comparative study of type I and type II tryparedoxin peroxidases in Leishmania major pot

Báo cáo khoa học: "A Comparative Study of Hypothesis Alignment and its Improvement for Machine Translation System Combination" pot

... Alignment and its Improvement for Machine Translation System Combination Boxing Chen*, Min Zhang, Haizhou Li and Aiti Aw Institute for Infocomm Research 1 Fusionopolis Way, 138632 Singapore ... 2008. Indirect-HMM-based Hypothesis Alignment for Combining Outputs from Machine Translation Systems. In Proceeding of EMNLP. Hawaii, US, Oct. F. Huang and K. Papinent. 2007. Hierarchical System ... new link are un-aligned and this link exists in the union of two word alignments. If there are more than two links share a same hypothesis or backbone word and also satisfy the constraints,...

Báo cáo khoa học: "A Comparative Study of Parameter Estimation Methods for Statistical Natural Language Processing" potx

... (AP), and Boosting. We also in- vestigate ME estimation with L1 regularization using a novel optimization algorithm, and BLasso, which is a version of Boosting with Lasso (L1) regularization. ... baseline model. Then, a linear model of the form in Equation (1) is used to discriminatively re-rank the candidate list using additional features which may or may not be included in the baseline ... challenge of parameter estimation is to find a combination of the typically noisy, re-dundant features that accurately predicts the target output variable and avoids overfitting. Intuitively,...

Báo cáo khoa học: "A Comparative Study of Reinforcement Learning Techniques on Dialogue Management" pdf

... PapangelisNCSR ”Demokritos”,Institute of Informatics& Telecommunications and Univ. of Texas at Arlington,Comp. Science and Engineeringalexandros.papangelis@mavs.uta.eduAbstractAdaptive Dialogue ... this, is necessary. In this work we compare several standard and state of the art online RL algorithmsthat are used to train the dialogue manager in a dynamic environment, aiming to aid re-searchers ... or major (change in user needs) changes in the environment. In general, RL algorithms fall in two cate-gories, planning and learning algorithms. Plan-ning or model-based algorithms use training...

Báo cáo khoa học: A comparative study of methylglyoxal metabolism in trypanosomatids potx

... (c-l-glut-amyl-l-cysteinylglycine) [7]. This dithiol is primarilyresponsible for the maintenance of thiol-redox homeo-stasis within trypanosomatids, and is crucially involved in the protection of parasites ... try-panosomatids. As inhibitors of the glyoxalase systemhave already been shown to possess both anticancer[17] and antimalarial [18] activities, it is possible thatinhibition of the trypanothione-dependent ... monitored at 340 nm for the formation of NADH.Western blot analyses of trypanosomatid cellextractsPolyclonal antisera against L. major GLO1 were raised in adult male Wistar rats. An initial injection...

Báo cáo khoa học: A comparative study of type I and type II tryparedoxin peroxidases in Leishmania major pot

... 2007 The Authors Journal compilation ª 2007 FEBS A comparative study of type I and type II tryparedoxin peroxidases in Leishmania major Janine Ko¨nig and Alan H. FairlambWellcome Trust Biocentre, ... mammalianGPXs and the Cys35Ala mutant is devoid of enzymeactivity, indicating that Cys35 is involved in catalysis.The Cys83Ala mutant shows only 1% of wild -type activity with TryX indicating that ... DNA and modiﬁed vaccinia virus Ankara express-ing tryparedoxin peroxidase promotes long-term mem-ory against Leishmania major in susceptible BALB ⁄ cmice. Infect Immun 75, 852–860.22 Wilkinson...

Báo cáo khoa học: "A Comparative Study of Target Dependency Structures for Statistical Machine Translation" ppt

... Comparative Study of Target Dependency Structuresfor Statistical Machine TranslationXianchao Wu∗, Katsuhito Sudoh, Kevin Duh†, Hajime Tsukada, Masaaki NagataNTT Communication Science Laboratories, ... Laboratories, NTT Corporation2-4 Hikaridai Seika-cho, Soraku-gun Kyoto 619-0237 Japanwuxianchao@gmail.com,sudoh.katsuhito@lab.ntt.co.jp,kevinduh@is.naist.jp,{tsukada.hajime,nagata.masaaki}@lab.ntt.co.jpAbstractThis ... dependencies.both during rule extracting and target dependencylanguage model (LM) training.2.2 Dependency parsingGraph-based and transition-based are two predom-inant paradigms for data-driven...

Báo cáo khoa học: A comparative analysis of the transcriptome and signal pathways in hepatic differentiation of human adipose mesenchymal stem cells doc

... function, including steroid and lipid metabolism. In addition, gene signaling pathway analysis has identi-ﬁed gene signals that are remarkably activated in AT-MSC-Hepa, and these signals are also ... proteins [21,22]. Ourdata indicate that the amount of CYP 3A4 expressed in AT-MSC-Hepa is approximately 170 times higherthan that in undifferentiated AT-MSCs. Additionally,microarray analysis indicated ... tran-scription factors exhibit temporal- and site-speciﬁcexpression patterns during organogenesis, with a dis-tinct narrow time interval of transcription initiation[25], and regulate transactivation...

Báo cáo khoa học: "A Comparative Study on Generalization of Semantic Roles in FrameNet" ppt

... groupSt::State of affairs in which Giving::Reason and Giving::Means are included, as illustrated in Fig-ure 4. If ˜c = St::State of affairs, we cannot dis-ambiguate which original role is correct. In ... uniﬁed seman-tic representations, SRL has attracted much at-tention from researchers into various NLP appli-cations including question answering (Narayanan and Harabagiu, 2004; Shen and Lapata, ... traininginstances by collecting instances for ﬁne-grainedroles. Thus, semantic roles with few training in- stances are expected to receive additional cluesfrom other training instances via role-group...

Tài liệu Báo cáo khoa học: A comparative analysis of the time-dependent antiproliferative effects of daunorubicin and WP631 pdf

... such as unpairing of DNA replication or inhibition of transcription and topo-isomerase activity [4,12]. Interaction of anthracyclines withDNA-topoisomerase II complexes may trigger apoptosis. In Jurkat ... polyploidy and multinucleation instead of displaying signs of ÔclassicalÕ apoptosis as nuclearcondensation or DNA fragmentation.The differences in the kinetics of daunorubicin and WP631 uptake are ... mono-intercalating anthracyclines and the more sequence-selectivebisanthracycline WP631. To gain further insight into thecauses of the distinct behavior of daunorubicin and WP631,we compared...

Báo cáo khoa học: A kinetic study of sugarcane sucrose synthase pdf

... plot analysisPrimary plot analysis is used to obtain information onthe reaction mechanism of an enzyme; in combinationwith product inhibition studies, the complete mechanismcan be established. ... as practical advice on isolation and assay of plantenzymes and extraction of metabolites. It should bementioned that plants pose particular challenges as far asanalysis of their metabolism ... value.Several papers that give a n overview of different approa-ches for studying and modelling metabolism, such asmetabolic ﬂux analysis, metabolic control analysis ( MCA) and positional isotopic labelling...

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