Báo cáo khoa học: "Simulating the Behaviour of Older versus Younger Users when Interacting with Spoken Dialogue Systems" pdf
Báo cáo khoa học: "Simulating the Behaviour of Older versus Younger Users when Interacting with Spoken Dialogue Systems" pdf
... testedon older users, because the behaviour of older users is richer and more complex.But do older and younger users constitute twoseparate groups, or are there older users that be-have like younger ... dueto the lack of corpora for different types of users. In this paper we focus on the behaviour of older vs. younger adults. Most of the work to date on di-alogue systems focuses on young users. ... stepfurther. We measure the quality of user simulationmodels for both older and younger users, and showthat these metrics are a good predictor of the be-haviour of those two user types. The structure...
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Tài liệu Báo cáo khoa học: Seeking the determinants of the elusive functions of Sco proteins pptx
... function of the CXXXCmotif of human Sco proteins could therefore be impli-cated not only in the maturation of the CuAsite of Cox2 but also in the maintenance of cellular copperhomeostasis. The ... detected in the redox state of the cysteines of Sco1 in both Sco1 and Sco2 patientbackgrounds, and these correlate well with the severity of the observed cellular copper deficiency [17]. The thiol-disulfide ... Blackburn NJ(2011) The essential role of the Cu(II) state of Sco in the maturation of the Cu(A) center of cytochrome oxi-dase: evidence from H135Met and H135SeM variants of the Bacillus subtilis...
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Tài liệu Báo cáo khoa học: Glucuronate, the precursor of vitamin C, is directly formed from UDP-glucuronate in liver pptx
... procedure. The finding that the effect of CoASH depends on the presence of ATP (althoughnot of other NTPs such as GTP and UTP; notshown) suggests that it is indirectly mediated via the formation of ... because of the presence of saccharo-1,4-lactone, an inhibitor of b-glucuronidase, in the sampleswhere b-glucuronides had to be determined, the amount of b-glucuronidase and the incubation time with ... 20%, despite the presence of ATP-Mg. It is shown below that this is due to loss of the inhibitory effect of ATP-Mg, consequent to the removal of a heat-stable cofactor present in the high-speed...
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Tài liệu Báo cáo khoa học: On the mechanism of action of the antifungal agent propionate Propionyl-CoA inhibits glucose metabolism in Aspergillus nidulans doc
... propionyl-CoA in the DmcsA-strain, the activity of methylisocitrate lyase is twice as high than that of the wild-type. The addition of acetate to these media notonly lowered the propionyl-CoA ... elegant way to bypass the inhibition of this synthetase is the transfer of the CoA-moiety from succ inyl-CoA to either acetate or p ropionate.We were able to show the existence of such a CoA-transferase, ... of lightpath of the cuvette], which con siders the decrease of the concentration of oxaloacetate in equilibrium with L-malateduring t he formation o f NADH (the concentrations of malate and...
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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...
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Tài liệu Báo cáo khoa học: "Analyzing the Errors of Unsupervised Learning" docx
... paper,we analyze the following three model families:In the HMM, the input x is a sequence of wordsand the output y is the corresponding sequence of part -of- speech tags.In the PCFG, the input x ... that the first iteration of EM reinforces the systematic mis-takes of the supervised initializer. In the first E-step, the posterior counts that are computed summarize the predictions of the supervised ... but these methods must still deal with the four types of errors we have identified inthis paper. One of our main contributions of this pa-per is the idea of using the meta-model to diagnosethe...
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Tài liệu Báo cáo khoa học: "Improving the Scalability of Semi-Markov Conditional Random Fields for Named Entity Recognition" pdf
... compared the result of the recog-nizers with and without filtering using only 2000sentences as the training data. Table 5 shows the result of the total system with different filteringthresholds. The ... 10). The results of McNemar’s test suggestthat the system with chunk features is significantlybetter than the system without it (the p-value isless than 1.0 < 10−4). The result of the precedingentity ... type of non-local information, i.e. the label of the preceding entity, the model can be solvedwithout approximation.4 Reduction of Training/Inference Cost The straightforward implementation of...
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Tài liệu Báo cáo khoa học: "Evaluating the Accuracy of an Unlexicalized Statistical Parser on the PARC DepBank" docx
... by the need to balancedepth of analysis against the size of the deriva-tion space. On the Susanne corpus, the geometricmean of the number of analyses for a sentence of length n is 1.31n. The ... fifth of DepBank is held out to optimize the speed and accuracy of the three systems. Theyconclude from the results of these experiments that the cut-down XLE parser is two-thirds the speed of ... differin the order of application of the same rules andalso conditions rule application on the PoS tag of the lookahead token. When there is no parse rooted in the start cat-egory, the parser...
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Tài liệu Báo cáo khoa học: "Is the End of Supervised Parsing in Sight?" pdf
... derivations, the probability of a tree is the sum of the probabilities of the derivations producing that tree. The probability of a derivation is the product of the subtree probabilities. The original ... consists of the computation of the shortest derivations and the extraction of subtrees, UML-DOP involves iterative training of the parameters. Once we have extracted the STSG, we compute the most ... the number of subtrees headed by nodes with nonterminal A, that is a = Σj aj. Then there is a PCFG with the following property: for every subtree in the training corpus headed by A, the...
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Tài liệu Báo cáo khoa học: "Modelling the substitutability of discourse connectives" doc
... arising when q(x) = 0.these results demonstrate a three way correspon-dence between the human ratings of the similar-ity of a pair of connectives, their substitutabil-ity relationship, and their ... supplemented with some judgements of our own. Each experimental item consisted of the two discourse connectives along with dummyclauses, as illustrated in Figure 4. The format of the experimental ... weregathered from the British National Corpus and the world wide web, with discourse connectives identi-fied on the basis of their syntactic contexts (for de-tails, see Hutchinson (2004b)). The...
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