Tài liệu Báo cáo khoa học: "A Novel Feature-based Approach to Chinese Entity Relation Extraction" ppt

Tài liệu Báo cáo khoa học: A novel dicyclodextrinyl diselenide compound with glutathione peroxidase activity ppt

... 2007 FEBSon mitochondrial swelling and lipid peroxidaton in theabsence of damage.Exposing mitochondria in vitro to redox active xeno-biotics may simulate oxidative damage of mitochondriain ... mimic [9].Another way to imitate the SeÆÆÆ N interaction in GPX isif the selenium is not bound directly to the heteroatom(N or O), but is located in close proximity to it, thisKeywordscyclodextrins; ... imitated byinducing N or O in close proximity to selenium. Oneway in which this is achieved is by binding the selen-ium atom directly to a heteroatom such as nitrogen.2-Phenyl-l,2-benzisoselenazol-3(2H)-one...

Tài liệu Báo cáo khoa học: "A Ranking-based Approach to Word Reordering for Statistical Machine Translation" doc

... converted to dependency trees us-ing Stanford Parser (Marneffe et al., 2006). We con-vert the tokens in training data to lower case, andre-tokenize the sentences using the same tokenizerfrom ... sensitive to parser er-rors; on the other hand, integrated model is forced to use a longer distortion limit which leads to moresearch errors during decoding time. It is possible to 918use ... work, we plan to extend the rankingmodel to handle reordering between multiple lev-els of source trees. We also expect to explore bet-ter way to integrate ranking reorder model into SMTsystem...

Tài liệu Báo cáo khoa học: "A Fully Bayesian Approach to Unsupervised Part-of-Speech Tagging∗" docx

... differences hold to alesser degree when a partial dictionary is provided.With MLHMM, different tokens of the same wordtype are usually assigned to the same cluster, buttypes are assigned to clusters ... We would also like to thankNoah Smith for providing us with his data sets.Eisner, 2005). Nearly all of these approaches haveone aspect in common: the goal of learning is to identify the set ... tagdictionary to no dictionary at all. We introduce theuse of a new information-theoretic criterion, varia-tion of information (Meilˇa, 2002), which can be used to compare a gold standard clustering to...

Tài liệu Báo cáo khoa học: "A Feature Based Approach to Leveraging Context for Classifying Newsgroup Style Discussion Segments" pptx

... state of a simple finite-state automaton that only has two states. The automaton is set to initial state (q0) at the top of a message. It makes a transition to state (q1) when it encounters ... is to enable the quality and nature of discussions that occur within an on-line discussion board to be communicated in a summary to a potential new-comer or group moderators. We propose to ... where a message appears. We refer to this feature as deep. This is expected to improve per-formance to the extent that thread initial messages may be rhetorically distinct from messages that...

Tài liệu Báo cáo khoa học: "An Equivalent Pseudoword Solution to Chinese Word Sense Disambiguation" ppt

... EPs. A Chinese thesaurus is adopted and revised to meet this de-mand. Extended Version of TongYiCiCiLin To extend the TongYiCiCiLin (Cilin) to hold more words, several linguistic resources ... word, which is called an atom word group, an atom class or an atom node. The words in the same atom node hold the smallest semantic dis-tance. From the root node to the leaf node, the sense ... a new approach based on Equivalent Pseudowords (EPs) to tackle Word Sense Disambiguation (WSD) in Chinese language. EPs are par-ticular artificial ambiguous words, which can be used to realize...

Báo cáo khoa học: "A Phonetic-Based Approach to Chinese Chat Text Normalization" ppt

... error-driven approach is pro-posed to detect chat terms in dynamic Chinese chat terms by combining standard Chinese cor-pora and NIL corpus (Xia et al., 2006b). Lan-guage texts in standard Chinese ... becomes ubiquitous due to the rapid proliferation of Internet applications. Chat lan-guage text appears frequently in chat logs of online education (Heard-White, 2004), customer relationship ... for Computational LinguisticsA Phonetic-Based Approach to Chinese Chat Text Normalization Yunqing Xia, Kam-Fai Wong Department of S.E.E.M. The Chinese University of Hong Kong Shatin, Hong...

Tài liệu Báo cáo khoa học: A novel electron transport system for thermostable CYP175A1 from Thermus thermophilus HB27 doc

... highly similar to the substrate-binding region ofcytochrome P450 BM-3 [4], whose substrates are long-chain fatty acids. Cytochrome P450 BM-3 has beenengineered to improve activities towards substratessuch ... Guengerich FP (2007) Electron transport pathwayfor a Streptomyces cytochrome P450: cytochrome P450105D5-catalyzed fatty acid hydroxylation in Strepto-myces coelicolor A3(2). J Biol Chem 282, 17486–17500.30 ... prostaglandins, andantibiotics [1]. Cytochrome P450s have great potential to perform numerous industrially important reactions.Indeed, cytochrome P450sca-2 from Streptomyces car-bophilus has already...

Tài liệu Báo cáo khoa học: A novel splice variant of occludin deleted in exon 9 and its role in cell apoptosis and invasion docx

... forma-tion of inositol trisphosphate (IP3), which binds to theIP3receptor (IP3R) located on the endoplasmic reticu-lum (ER), thereby releasing calcium into the cytoplasm[20,21]. When ... apoptotic cells increased as compared to ﬁndings in control cells. These changes, however,were not observed in OccDE9-overexpressing cells(Fig. 4A,B). To identify the pathways linked to apoptosisinduced ... OccWTinduced mitochondrial apoptosis[25], and that exon 9 played a major role in occludin-induced apoptosis. In a previous study, the phosphory-lation of mitogen-activated protein kinase was shownto...

Tài liệu Báo cáo khoa học: A novel tachykinin-related peptide receptor of Octopus vulgaris – evolutionary aspects of invertebrate tachykinin and tachykinin-related peptide ppt

... oxy-tocin ⁄ vasopressin superfamily peptides and their threereceptors were characterized from Octopus in our pre-vious study, whereas other protostomes have beenshown to possess only one oxytocin ... recep-tors (TKRs), NK1, NK2 and NK3 receptors (NK1R,NK2R, NK3R), have so far been identiﬁed. Thesereceptors belong to the class I G-protein-coupledreceptor (GPCR) family, and have been shown to ... notshown).Expression of the cloned receptor in XenopusoocytesThe ORF region of the novel receptor cDNA was ampliﬁedand inserted into a pSP64 poly(A) vector (Promega, Madi-son, WI). The plasmid...

Tài liệu Báo cáo khoa học: A novel type of highly negatively charged lipooligosaccharide from Pseudomonas stutzeri OX1 possessing two 4,6-O-(1-carboxy)-ethylidene residues in the outer core region ppt

... Rosa Lanzetta1,Michelangelo Parrilli1, Antonio Molinaro1and Alberto Di Donato21Dipartimento di Chimica Organica e Biochimica and2Dipartimento di Chimica Biologica, Universita`degli ... group should beattached to O-7 of the heptose moiety D.TheGalNC wasattached to the O-3 position of this last heptose as shown bythe NOE effect between the anomeric proton of GalN andH-3 of ... Holst, O. (2000) Methods in Molecular Biology, Bacterial Toxins:Methods and Protocols (Holst, O., eds), pp. 345–353. HumanaPress Inc, Totowa, NJ.17. Vinogradov, E.V., Holst, O., Thomas-Oates,...

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