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 ... S...

Ngày tải lên: 17/03/2014, 07:20

... 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 abo...

Ngày tải lên: 08/03/2014, 18:20

... empty nodes and coindexations. They first transform Penn trees to a dependency format and then use memory-based learning to perform various graph transformations. One of the transformations is ... (Infinitive) and gerundi (Gerund). For these candidates we extract the following three types of features encoding configurational, mor- phological and lexical information for the target nod...

Ngày tải lên: 08/03/2014, 02:21

... 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...

Ngày tải lên: 17/03/2014, 07:20

... Cai, Xianting Li and Sarah Funderburk for their critical comments, 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...

Ngày tải lên: 23/03/2014, 04:20

... five a-helices and a central six- stranded b-sheet. A central six-stranded parallel b-sheet and eight a-helices form the PP domain (resi- dues 360–556). A superposition of ScPDC and KlPDC monomers ... 114–289 and 303–562 of subunit A, residues 2–104 and 114–554 of subunit B, residues 2–104 and 116–556 of subunit C, residues 2–104 and 121–562 of subunit D, four mole- cules of ThDP...

Ngày tải lên: 30/03/2014, 10:20

... sequence was utilized for all samples, which were spun at the magic angle at 6.2 kHz for native chitosan and 7 kHz for LMWC and chito-oligomers + monomer. A contact time of 1 ms and a pulse repetition ... reference for comparison of band absorbance. Absence of a sharp and convoluted spectral band around 3600–3000 cm )1 in the spectra of both chitosan and LMWC indicated the a...

Ngày tải lên: 19/02/2014, 12:20

... the whole, the results reported in this study suggest a tissue-specific expression and a different competence for catalysis of BLT and BLCT. Thus, cattle could be a useful model for investigating ... electrophoresis and the bands eluted, purified and subcloned in the PCRII TM TOPO vector containing the lac promoter and the b-galactosidase gene, using the TA Cloning Kit (Invitrog...

Ngày tải lên: 17/03/2014, 09:20

... L22 at its native conformation is shown in cyan, and the swung conformation in magenta. TAO is shown in gold and erythromycin in red. (A) The chemical formulae of erythromycin and TAO, highlighting ... crystallographic results, described below and in [7,8,15], are consistent with this interpretation, and suggest that the ribosome provides a template not only for peptide bond form...

Ngày tải lên: 23/03/2014, 17:22

... 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% HClO 4 . The reaction mixtures were centrifuged at 3000 g for 10 min to sediment precipitated proteins and salt...

Ngày tải lên: 29/03/2014, 23:20