Báo cáo khoa học: "Using Leading Text for News Summaries: Evaluation Results and Implications for Commercial Summarization Applications" ppt
Báo cáo khoa học: "Using Leading Text for News Summaries: Evaluation Results and Implications for Commercial Summarization Applications" ppt
... Using Leading Text for News Summaries: Evaluation Results and Implications for Commercial Summarization Applications Mark Wasson LEXIS-NEXIS, ... ANES and Leading Text The results for both approaches showed a promising start towards the goal of creating summaries for news documents. However, those results also raised questions about leading ... Searchable LEAD-based leading text ex- tracts rate as summaries and where those exWacts fail. The results support the use of leading text as general purpose summaries for news documents. 2 Searchable...
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Báo cáo khoa học: "USING AN ONLINE DICTIONARY TO FIND RHYMING WORDS AND PRONUNCIATIONS FOR UNKNOWN WORDS " doc
... for unknown words by analogy with those for known words. The analogical processes involve techniques for segmenting and matching word spellings, and for mapping spelling to sound in known ... similarly or- ganizod into several subseries. There are voiced and voiceless stops, voiced and voiceless fricatives and affricates, nasals, and liquids. An important point about this mapping from ... assumed (Forster and Chambers, 1973) that the mapping from letters to phonemes is mediated by two processes, one based on rules and the other based on retrieval of stored pronunciations. For example,...
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Báo cáo khoa học: "Using Machine-Learning to Assign Function Labels to Parser Output for Spanish" ppt
... empty nodes and coindexations.They first transform Penn trees to a dependencyformat and then use memory-based learning toperform various graph transformations. One of thetransformations is ... (Infinitive) and gerundi (Gerund). For these candidates we extract the following threetypes of features encoding configurational, mor-phological and lexical information for the targetnode and neighboring ... 2004) for Memory-Based Learning, the MaxEnt Toolkit (Le, 2004) for Maximum Entropy and LIBSVM (Chang and Lin, 2001) for Support Vector Machines. For TiMBL we used k nearest neighbors = 7 and thegain...
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Báo cáo khoa học: "Using Mutual Information to Resolve Query Translation Ambiguities and Query Term Weighting" doc
... disambiguation and weighting schemes rely on both relative and absolute magnitudes of the MI vales. The algorithm first looks for the pair with the highest MI value and selects the best candidates before ... regardless of which part of the topic statements is used for formal query generation. 3 Query Translation and Mutual Information Our strategy for cross-language IR aims at practicality in that ... Mutual Information to Resolve Query Translation Ambiguities and Query Term Weighting 1 Myung-Gil Jang, 2 Sung Hyon Myaeng and 1 Se Young Park 1 Dept. of Knowledge Information, Electronics and...
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Báo cáo khoa học: LRRK2 in Parkinson’s disease: in vivo models and approaches for understanding pathogenic roles pdf
... Cai,Xianting Li and Sarah Funderburk for their criticalcomments, and Dr Huaibin Cai for sharing unpub-lished results. I am also grateful to Dr Nina Pan for assisting in the preparation of Fig. 1 and Table ... genes for ROCO and LRRK2 homo-logs in slime mold, nematode worms and fruit flies. It also discusses the results obtained from available mouse models of LRRK2 that begin toprovide information for ... dataobtained from both KO and transgenic mouse models(albeit in preliminary form) suggest that LRRK2 isnot essential for neural development and differentia-tion, and that it does not play...
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Báo cáo khoa học: The crystal structure of pyruvate decarboxylase from Kluyveromyces lactis Implications for the substrate activation mechanism of this enzyme ppt
... five a-helices and a central six-stranded b-sheet. A central six-stranded parallelb-sheet and eight a-helices form the PP domain (resi-dues 360–556). A superposition of ScPDC and KlPDCmonomers ... 114–289 and 303–562 of subunit A, residues 2–104 and 114–554 ofsubunit B, residues 2–104 and 116–556 of subunit C,residues 2–104 and 121–562 of subunit D, four mole-cules of ThDP, four Mg2+, and ... stabilizethe latter conformation in KlPDC and enable effectivecatalysis.Experimental proceduresProtein expression and purificationProtein expression and purification for both species wascarried...
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Tài liệu Báo cáo khóa học: Non-specific depolymerization of chitosan by pronase and characterization of the resultant products pptx
... sequence was utilized for all samples, which were spun at the magic angle at6.2 kHz for native chitosan and 7 kHz for LMWC and chito-oligomers + monomer. A contact time of 1 ms and apulse repetition ... reference for comparison ofband absorbance. Absence of a sharp and convolutedspectral band around 3600–3000 cm)1in the spectra of bothchitosan and LMWC indicated the absence of free -OHgroups and ... Science,Bangalore) for X-ray analysis, Dr A.G. Appu Rao and Dr SrideviAnnapurna Singh (Department of Protein Chemistry and Technology,CFTRI, Mysore) for CD measurements. A.B.V.K. thanks CSIR (NewDelhi) for...
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Báo cáo khoa học: Bovine tryptases cDNA cloning, tissue specific expression and characterization of the lung isoform ppt
... the whole, the results reported in this study suggest atissue-specific expression and a different competence for catalysis of BLT and BLCT. Thus, cattle could be a usefulmodel for investigating ... electrophoresis and the bandseluted, purified and subcloned in the PCRIITMTOPOvector containing the lac promoter and the b-galactosidasegene, using the TA Cloning Kit (Invitrogen, USA).Transformation ... pairs: Met/C7 for intronII amplification; N9/C6 for intron III amplification;C8/C1 for intron IV amplification; C5/N10 for intron Vamplification. Sequences of primers Met, C1, N9 and N10 are reported...
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Báo cáo khoa học: On peptide bond formation, translocation, nascent protein progression and the regulatory properties of ribosomes ppt
... L22at its native conformation is shown in cyan, and the swung conformation in magenta. TAO is shown in gold and erythromycin in red. (A) Thechemical formulae of erythromycin and TAO, highlighting ... crystallographic results, described below and in [7,8,15], are consistent withthis interpretation, and suggest that the ribosome provides atemplate not only for peptide bond formation but also for translocation. ... blue and as the derived P-site, in green. (Right) The chemical formulation of peptide bond formation. Bottom: Our proposed mechanism for peptide bondformation. Left: The 3¢ end of ASM (in blue) and...
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Báo cáo khoa học: Human liver mitochondrial cytochrome P450 2D6 – individual variations and implications in drug metabolism docx
... 10% fetal bovine serum, 1% pen-icillin and streptomycin, for several weeks, to allow for expansion. Single cell colonies were selected and cultured, and immunoblot analysis was used to detect ... carried out for 10 min and then quenched by addition of 25 lL of 60%HClO4. The reaction mixtures were centrifuged at 3000 g for 10 min to sediment precipitated proteins and salts and the supernatants ... grants RO1GM34883 (N.G.A.) and R37CA090426 (F.P.G.) and MSTP grant 5T32GM007170. We thank Dr MichaelWaterman for the generous gift of Adx antibody and Dr David Clayton for the gift of mtTFA antibody.References1...
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