Báo cáo khoa học: "Assessing the Role of Discourse References in Entailment Inference" pptx

... for inference. In another 28%, references could optionally support the inference of the hypothesis. In the remaining 28%, refer-ences did not contribute towards inference. The total number of ... enough;(3) the limitation to nominal coreference; and (4)overly simple integration of reference informationinto the inference engines. The goal of this paper is to assess the impact of discourse references ... between discourse and inference. The goal of this study is to analyze the roles of discourse references for textual entailment in- ference, to provide relevant ﬁndings and insightsto developers of...

Báo cáo khoa học: "Assessing the Costs of Sampling Methods in Active Learning for Annotation" potx

... cor-responding value of the cost on the random baselineis estimated by interpolation between neighboringpoints on the baseline. Using hourly cost, Figure 2shows the cost reduction curves of several ... expand the goal of ALto produce the annotated setÂ such that the benefitgained is maximized and cost is minimized. In the case of POS tagging, tag accuracy is usu-65ally used as the measure of ... uni-form cost of annotating each item. In this case, the ordering of annotated data A will depend entirely on the algorithm’s estimate of the expected benefit.However, for AL in POS tagging, the cost...

Báo cáo khoa học: Investigating the role of the invariant carboxylate residues E552 and E1197 in the catalytic activity of Abcb1a (mouse Mdr3) docx

... crucial role. Anothernotable feature of the single-site IC mutants (including the glutamine substitutions) [39] is the fact that, in the absence of Vi (± drugs) labeling of the enzymes with the ... in the glutamine (length of the side chainmaintained) and asparagine (shorter side chain)mutants, then trapping in the absence of Vi nowoccurs [39] (Fig. 3); this is also the case when the ... helixextending from the TMD, may be involved in signaltransduction between the TMD and NBD, by sens-ing either hydrolysis of the terminal phosphate or the presence of substrate in the drug-binding...

Báo cáo khoa học: "Examining the Role of Linguistic Knowledge Sources in the Automatic Identification and Classification of Reviews" doc

... documents and find that the fea-ture vectors corresponding to some of these docu-ments (particularly the short ones) have all zeroes in them. In other words, none of the bigrams from the training set ... available.612Finally, previous work has also investigated fea-tures that do not fall into any of the above cate-gories. For instance, instead of representing the polarity of a term using a binary value, ... cap-turing two different situations, one in which the author himself likes the movie, and in the other, the author’s cousin likes the movie. The over-generalization resulting from these “stemmed”...

Báo cáo khoa học: Dissecting the role of the N-terminal metal-binding domains in activating the yeast copper ATPase in vivo pptx

... N-terminus modulates their activity [36,37]. The current hypothesis involves domain–domain interac-tions between the N-terminus and other domains of the ATPase. Indeed, in vitro studies of the ... N-terminus of the ATPase.To further study the role of the Ccc2 N-terminus in the overall function of the ATPase in vivo, we engi-neered DMBDCcc2 (Fig. 1E), a protein in which the N-terminus ... to investigate the role of various amino acids in these proteins [25–28].Although these studies provide useful informationabout the functionality of the ATPase, they are allinterpreted independently...

Báo cáo khoa học: Dissecting the role of protein–protein and protein–nucleic acid interactions in MS2 bacteriophage stability potx

... unsure of the mechanism of DNA-induced stabilization of the protein, and whe-ther it is related to the normal RNA-binding function of coat protein, as RNA binding had no effect. The increased ... against all the forms of denatura-tion we tested. This is consistent with the observation of increased stability of the single-chain version of the wild-type dimer [30] and is reminiscent of the ... of the two subunits of the dimer in the single-chain dimer sc-dlFG stabilized the protein, as did the presence of 34-bp poly(GC) DNA. These studies reveal mechanisms by which inter-actions in...

Báo cáo khoa học: "Assessing the Effect of Inconsistent Assessors on Summarization Evaluation" doc

... between the original summarizerranking and the ranking after excluding topics by one ortwo worst assessors in each category.we should examine the potential impact of incon-sistent assessors on the ... than the manual Pyramid score, it means that either (1) the assessor missed relevant strings in this summary,but found them in other summaries; or (2) the stringsselected as relevant elsewhere in ... inconsis-tencies in the data and measure to what ex-tent these inconsistencies affect the ranking of automatic summarization systems. Finally,we examine the stability of automatic metrics(ROUGE...

Tài liệu Báo cáo khoa học: "Is the End of Supervised Parsing in Sight?" pdf

... sum of the probabilities of the derivations producing that tree. The probability of a derivation is the product of the subtree probabilities. The original DOP model in Bod (1998) takes the occurrence ... based on the assumption that maximizing the joint probability of the parses in a treebank can be approximated by maximizing the joint probability of their shortest derivations (i.e. the derivations ... 402 the number of subtrees of all trees increases with the Catalan number, and only ad hoc sampling could make the method work. Since U-DOP* computes the shortest derivations (in the training...

Tài liệu Báo cáo khoa học: "Modelling the substitutability of discourse connectives" doc

... if two connectives are EXCLUSIVE thenthere would always be a high degree of surprise in seeing one in place of the other. This is indicatedusing dark shading in Figure 3e. Only one set isshaded ... functionsconnective in place of the other, and this low level of surprise is indicated via light shading in Figure 3a.It follows that the variance in surprise is low. On the other hand, if two ... with pairs of verbs (e.g. bathe–kneel). The level of inter-rater agreement was again signiﬁ-cant (r = 0.76).1. Take an instance of a discourse connective in a corpus. Imagine you are the writerthat...

Tài liệu Báo cáo khoa học: "Defining the Semantics of Verbal Modifiers in the Domain of Cooking Tasks" pptx

... in the domain of cooking tasks. The domain is limited to a mini-world con- sisting of a small set of verbs chosen because they involve rather complex arm movements which will be interesting ... compute the length of the intervals between stirring events. The length of a single stirring event is a default which is part of the representation of the primitive actions. The number of stirring ... empirical, linguistic study of recipes was con- ducted with the goals of delimiting the scope of the cooking domain, identifying important verbal modifiers, and defining the semantics of those...

Xem thêm