Báo cáo khoa học: "Comparing Automatic and Human Evaluation of NLG Systems" potx

... shown both NLG and human- written texts, and the NLG system is evaluated by comparing the rat-ings of its texts and human texts. In some cases,subjects are shown texts generated by several NLG systems, ... Comparing Automatic and Human Evaluation of NLG SystemsAnja BelzNatural Language Technology GroupCMIS, University of BrightonUKA.S.Belz@brighton.ac.ukEhud ReiterDept of Computing ScienceUniversity ... point of comparison. This methodologywas ﬁrst used in NLG in the mid-1990s by Coch(1996) and Lester and Porter (1997), and contin-ues to be popular today.Other, extrinsic, types of human evaluationsof...

Báo cáo khoa học: "Validating the web-based evaluation of NLG systems" potx

... are randomlyconnected to one of the three worlds and one of the NLG systems. The GIVE-1 Challenge evaluatedﬁve NLG systems, which we abbreviate as A, M,T, U, and W below. A running GIVE NLG ... experi-mental subjects are time-consuming and expensive, and corpus-based evaluations of NLG systems areproblematic because a mismatch between human- generated output and system-generated output doesnot ... 374vs.n = 91), and offers other oppor-tunities for more ﬁne-grained analysis as well. Wetake this as an empirical validation of the Internet-based evaluation of GIVE, and propose that it...

Báo cáo khoa học: "Comparing Objective and Subjective Measures of Usability in a Human-Robot Dialogue System" potx

... Proceedings of the 47th Annual Meeting of the ACL and the 4th IJCNLP of the AFNLP, pages 879–887,Suntec, Singapore, 2-7 August 2009.c2009 ACL and AFNLPComparing Objective and Subjective Measures of ... under a range of conditions and then completed a user-satisfaction ques-tionnaire. The results of this study pro-vide a wide range of subjective and ob-jective measures of the quality of the in-teractions. ... the results of one additional subject werediscarded due to technical problems with the sys-tem. The mean age of the subjects was 24.5, with aminimum of 14 and a maximum of 55. Of the sub-jects...

Báo cáo khoa học: Signaling pathways and preimplantation development of mammalian embryos potx

... Laboratory of Cell Differentiation and Apoptosis of Ministry of Education of China, Shanghai Jiao Tong University, ChinaAn embryo is a stage in the development of plants,invertebrate and vertebrate ... kinase)-1, -2, -5, and MAPK ⁄ ERK1 are detected in unfertilized eggs and blastocysts. Transcripts and the protein localiza-tion of p38-regulated and -activated kinase, p38MAPK, MK2 and hsp25 have ... Transcripts of Wnt3a, -6, -7b, -9a and -10bhave been detected in blastocysts, and Wnt1 and -4,Sfrp1 and Dkk1 are highly expressed at this stage[37]. Receptors (Fz2, frizzled-2 and Fz4, frizzled-4),intracellular...

Tài liệu Báo cáo khoa học: Tissue expression and biochemical characterization of human 2-amino 3-carboxymuconate 6-semialdehyde decarboxylase, a key enzyme in tryptophan catabolism pptx

... [21,33],catalytic activity of the human enzyme was notregained upon removal of EDTA and addition of metal-ions.Figure 9 shows the hydrophobicity profiles of human and P. fluorescens ACMSD, performed ... electrophoresis of the PCR product indicated thepresence of two distinct bands between 1000 and 1100 bp of roughly the same extent (not shown). Clo-ning and nucleotide sequencing of these two ... associated withincreased levels of quinolinate and ⁄ or picolinate.Experimental proceduresPCR amplification and cloning of ACMSDisoforms Human brain, liver and kidney total RNA (ClontechLaboratories,...

Báo cáo khoa học: Comparing the substrate speciﬁcities of cytochrome c biogenesis Systems I and II docx

... toindicate the presence of the speciﬁc holocytochromeunder investigation if the features of the spectrum, interms of wavelength maxima, and the position and intensity of heme-staining bands on SDS-PAGE ... the addition of a few grains of disodium dithionite. The Soret and a-band absorbance maxima areat 415 and 550 nm, respectively, for wild-type cytochrome c550, and at around 419 and 555 nm for ... permit a reﬁnement of the conclusion of the former work. We found herelow but detectable levels of the holo-forms of AXXCHvariants of both cytochromes c550 and c552(1 and 3%relative to...

Báo cáo khoa học: GTP binding and hydrolysis kinetics of human septin 2 pot

... representative of the results of several independentexperiments.Table 3. Kinetic constants of GTP hydrolysis of Sept2 wild-type and mutant S218A. The Km and kcatvalues represent mean ± SD of at leastthree ... guaninenucleotides with a Kd of 0.28 lm for GTPcS and 1.75 lm for GDP. It hasa slow exchange rate of 7 · 10)5s)1for GTPcS and 5 · 10)4s)1for GDP, and an apparent kcatvalue of 2.7 · 10)4s)1, ... [17] and yeast [22].Complexes comprised of different septin isoformswould reﬂect the binding and hydrolysis properties of each protein. Indeed, it has been reported that yeastseptins Cdc10 and...

Báo cáo khoa học: Puriﬁcation and structural study of the b form of human cAMP-dependent protein kinase inhibitor pdf

... presence of a very strong negative bandat 198 nm. The negative band near 220 nm results fromoverlapping of the bands of b-sheet (215 nm) and a-helix(209 nm and 222 nm) [22]. Analysis of the ... encoding three isoforms(PKIa,PKIb and PKIc) [3,8,9] and two human genesencoding PKIa [10] and PKIc (Genbank accession numbersAB019517 and AF182032) have been cloned. A new gene of human PKIb (Genbank ... mass of the human PKIb (8468.2 Da) [11]. Theidentiﬁcation of the gene product of human PKIb excludedit from the interference of human PKIb-70, which wastranslated from another initiated site and...

Báo cáo khoa học: Solution structure and backbone dynamics of the XPC-binding domain of the human DNA repair protein hHR23B docx

... inducible) and TPR (tetratricopeptide repeat) domains. (B) Multiple sequence alignments of the XPCB domains of hHR23B and hHR23A with other STI1-homologousdomains from yeast STI1 and DSK2, and from human ... XPCB–hHR23B and XPCB–hHR23A. The side chains of residues with orientations that differ between hHR23B and hHR23A are shown. Also, b-N and b-C are the N- and C-termini of XPCB–hHR23B; a-N and a-C ... vectors (N- and C-terminal His-tag,GST-tag, and thioredoxin-tag) and in a number of E. coli strains. It is possible that, if we expressed por-tions of the hHR23B-binding domain of human XPC,the...

Báo cáo khoa học: Identiﬁcation and functional expression of a second human b-galactoside a2,6-sialyltransferase, ST6Gal II docx

... 1. Nucleotide and predicted amino acid sequence (A) and hydro-pathy proﬁle (B) of human ST6Gal II, and (C) comparison of the sia-lylmotifs L, S and VS of hST6Gal II with those of previously ... LSM 510).Construction of recombinant baculoviruses and production of soluble ST6Gal I and ST3Gal III in Sf9In order to express soluble and His6-tagged enzymatic forms of human ST6Gal I (GenBank ... (nuc-leotide 1–35, Fig. 1A) and the 3¢ primer described above.The 25 lL of PCR mixture consisted of 1 unit of DyNazyme EXT, 0.3 lM of each primer, 0.2 mMdNTP and 1.5 ng of plasmid DNA. Reactions...

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