Báo cáo khoa học: "Generating the Structure of Argument" ppt

... text. These advantages are being exploited in the design and implementation of the ~hetor/ca system, of which the current work forms a part. 1 Problems with RST A number of limitations of the ... -P then supporting through one of the potentially argumentative RST relations R, therefore R. Apart from being obviously cumbersome, the representation has lost the abstract structure of the ... identification of supports for the other premises which are at the level of the inductive generalisation. In the scenario illustrated in Figure 4, for example, the first round of planning identifies...

Báo cáo khoa học: "Learning the Structure of Task-driven Human-Human Dialogs" pot

... found(Jurafsky et al., 1998), the multi-dimensionality of the scheme makes the building of models fromDAMSL-tagged data complex. Furthermore, the generality of the DAMSL tags reduces their util-ity for ... systemssince they better reﬂect the distribution of the phenomena being modeled. With the availability of large corpora of spo-ken dialog, dialog management is nowreaping the beneﬁts of data-driven ... view of analyzing the structure of task-oriented human-human dialogs. In Section 5,we discuss the problem of segmenting and label-ing dialog structure and building models for pre-dicting these...

Báo cáo khoa học: "Generating a Table-of-Contents" pptx

... factoriza-tion, the decision space for each model is large: for the local model, it is exponential in the length of the segment title, and for the global model it is exponen-tial in the size of the tree.Therefore, ... at the word sequence level. The selection features capture the position of the word, its TF*IDF, and part -of- speech information.In addition, they also record whether the word oc-curs in the ... subsection.Since the focus of our work is on the generationaspect of table -of- contents construction, we assumethat the hierarchical segmentation of a text is pro-vided in the input. This division can either...

Tài liệu Báo cáo khoa học: "Modeling the Translation of Predicate-Argument Structure for SMT" ppt

... argument. On the target side, the trans-lation of the verbal predicate, the translation of the head word of the argument, as well as the boundarywords of the translation of the argument are used asfeatures.4.3 ... both the source and target side. On the source side, the fea-tures include the verbal predicate, the semantic role of the argument, the head word and the boundarywords of the argument. On the ... of Atgt the translation of Ap the translation of Ah the leftmost word of the translation of A the rightmost word of the translation of ATable 2: Features adopted in the argument reorderingmodel.Reordering...

Báo cáo khoa học: MR solution structure of the precursor for carnobacteriocin B2, an antimicrobial peptide fromCarnobacterium piscicola Implications of the a-helical leader section for export and inhibition of type IIa bacteriocin activity pdf

... establish the preferred geometry of the precursor. We now report the chemical synthesis, bio-chemical production, and solution structure of preCbnB2,and compare it with the structure of the maturebacteriocin, ... Solution structure of preCbnB2 in 70% triﬂuoroethanol. The positions of the N-terminus and C-terminus are indicated, as are the residues at the start and ﬁnish of each a-helix. The position of the double ... purple.Fig. 4. Superimposition of preCbnB2 structures. (A) Superimposition of the backbone of the leader peptide a-helix for 20 structures. (B)Superimposition of the backbone of helix 2. Both helix...

Báo cáo khoa học: Monomeric solution structure of the helicase-binding domain of Escherichia coli DnaG primase pdf

... binds to the core of the other in a manner similar to that in whichhelix 6 binds to the core of the structure in the mono-meric solution structure (Figs 3A and 4). The two conformers in the crystal ... Stereo views of the solution andcrystal structures of DnaG-C. (A) Superposi-tion of the backbone atoms of residues447–581 of the 20 NMR conformers of DnaG-C representing the NMR structure (Table ... No other protein in the Protein DataBank has a similar fold (other than P16 fromB. stearothermophilus; see below).Comparison with the crystal structure of DnaG-C The crystal structure of dimeric...

Báo cáo khoa học: "ON THE INDEPENDENCE OF DISCOURSE STRUCTURE AND SEMANTIC DOMAIN" docx

... that we do not claim that the structures found in these discourse units is entirely independent of structure of the semantic domain, because of course the structure of the domain has some effect. ... tree structure of these descriptions is a consequence of the structure of apartments rather than of the structure of discourse. However, there are apartments which are not tree structured, because ... to the physical structure being described, some of it is a consequence of the ease of expressing tree structures in language, and the difficulty of expressing graph structures. The tree structure...

Báo cáo khoa học: X-ray structure of glucose/galactose receptor from Salmonella typhimurium in complex with the physiological ligand, (2R)-glyceryl-b-D-galactopyranoside pdf

... This kind of protein is exempliﬁed by the Thermus thermophilus protein, PDB entry 2B3B [28]. The mode of binding the monosaccharide is completelydifferent in terms of orientation of the sugar, ... described above, the two molecules in the asymmet-ric unit of our structure differ only slightly ( 1.5°)in their degree of opening. The similarity between the Fig. 3. Extension of the GGal site. ... lactose, is the natural substrate of the system. Thus, GGal taken up by the Mgl trans-porter will induce expression of the lac operon, and sopromote further uptake and utilization of the com-pound....

Báo cáo khoa học: Change in structure of the N-terminal region of transthyretin produces change in afﬁnity of transthyretin to T4 and T3 pdf

... region of crocTTR was deleted. The afﬁnity of T3 and T4 to both TTRs was studied and the results are a powerful demonstration of the rela-tionship between the evolution of the primary structure of ... structure of the N-terminal regions of TTR and the biologicalfunction of TTR.ResultsSynthesis of recombinant human TTRIn the crocodile, TTR is only synthesized in the liverduring development in the ... that the N-terminal regions of TTR affect the afﬁnities of TTR for thyroid hormones. A previousstudy revealed that altering the structure of the N-ter-minal region inﬂuenced the afﬁnity of thyroid...

Báo cáo khoa học: NMR solution structure of Cn12, a novel peptide from the Mexican scorpion Centruroides noxius with a typical b-toxin sequence but with a-like physiological activity doc

... capable of discriminating betweenNa+-channel isoforms of the same organism (e.g. the ratbrain isoform rNaV1.1 is 10-fold more sensitive to the action of the a Na-ScTx Lqq5 than the cardiac isoform ... (ENa¼)65). To determine the amplitude of the toxin-induced slowinactivation, we subtracted the control traces from the tracesrecorded in the presence of the toxin. The amplitude of thesetoxin-induced ... a-like function. The 3D structure of this toxin wasdetermined by NMR. The importance of the overallcharge distribution on the surface of the toxin for itsactivity is emphasized. Furthermore, considerations...

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