Báo cáo khoa học: "Extracting Narrative Timelines as Temporal Dependency Structures" ppt
Báo cáo khoa học: "Extracting Narrative Timelines as Temporal Dependency Structures" ppt
... existing temporal informa-tion extraction models formulate temporal linking as a pair-wise classification task, where each pairof events and/or times is examined and classified as having a temporal ... models (SRP and MST)we proposed two baselines. Both are based on theassumption of linear temporal structures of narratives as the temporal ordering process that was evidencedby studies in human ... Association for Computational Linguistics, pages 88–97,Jeju, Republic of Korea, 8-14 July 2012.c2012 Association for Computational LinguisticsExtracting Narrative Timelines as Temporal Dependency...
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Báo cáo khoa học: "Chinese sentence segmentation as comma classification" ppt
... seg-mentation as a comma disambiguation problem. Theproblem is basically one of separating commas thatmark sentence boundaries (such as [2] and [5] in (1))from those that do not (such as [1], [3] ... boundary detec-tion task that disambiguates commas, if successfully631solved, simplifies downstream tasks such as parsingand Machine Translation.The rest of the paper is organized as follows. InSection ... disambiguatethe two types of commas. Commas that mark sen-tence boundaries delimit loosely coordinated top-level IPs, as illustrated in Figure 1, and commas thatdon’t cover all other cases. One such example...
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Báo cáo khoa học: "Extracting Regulatory Gene Expression Networks from PubMed" pptx
... BioCreAtIvEcompetition tasks2that aimed at classifying en-tities (gene products) into classes based on GeneOntology (Ashburner et al., 2000).A task closely related to ours, which has re-ceived some ... havevarious combinations of uppercase and lowercaseletters: all uppercase, all lowercase, first letter up-percase, and (for multiword names) first letter ofeach word uppercase. In each of these versions,we ... us-ing cascades of finite state rules implemented as aCASS grammar (Abney, 1996). As an example werecognize gene noun phrases:[nxgene[dtthe][nnpgCYC1][genegene][inin][yeastSaccharomyces...
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Tài liệu Báo cáo khoa học: "Syntactic and Semantic Transfer with F-Structures*" pptx
... blend as seamlessly with syntac- tic representations as one would hope for. Se- mantics has to be encoded in the grammar or defined in terms of correspondences as below. System design has to ... nodes. In the present case the two terms kochen(nl). SUBJ(nl,n2) could then be rewrit- ten as the complement of like, XCOMP(n4,nl), whereas ADJN(nl,n3) is rewritten as ADJN(n4,n3) or hDJN(nl ... num- ber of tasks: evaluation (as against a database), inference and transfer. Even more so when ex- isting resources can be interfaced qua semantic representations: in our case the tested...
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Tài liệu Báo cáo khoa học: "Type-Driven Semantic Interpretation of f-Structures" pptx
... interpretation we generally assume from now on that types are as- signed to all grammatical function values and seman- tically relevant atomic-valued features by a type as- signment TY. Aside from the ... contains only h as an attribute- or set-value and assigns to that par- tial structure the type of h. Note that principle (B2) can only be applied if glA resp. gl(A h) has no type assignment or ... representation, as a funetor and inter- pret the rest of g as its argument which becomes then of type r'. 5 If we apply principle (Alii) to the structure in figure 3 and choose b as the rune-...
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Báo cáo khoa học: "Spectral Learning for Non-Deterministic Dependency Parsing" ppt
... Polit`ecnica deCatalunya (UPC).Xavier Carreras. 2007. Experiments with a higher-order projective dependency parser. In Proceed-ings of the CoNLL Shared Task Session of EMNLP-CoNLL 2007, pages ... lexicalizedgrammars. A second line of work has modeledhidden sequential structure, like in our case, butusing PDFA (Infante-Lopez and de Rijke, 2004).Finally, a third line of work has induced hiddenstructure ... provided a rankassumption on P holds (which hereafter we as- sume to be the case). Since we only have accessto an approximation of P , it seems reasonable tochoose a factorization which is robust...
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Báo cáo khoa học: "A Comparative Study of Target Dependency Structures for Statistical Machine Translation" ppt
... Structures2.1 Dependency treeWe follow the definition of dependency graph and dependency tree as given in (McDonald and Nivre,2011). A dependency graph G for sentence s iscalled a dependency tree ... generating word-based dependency trees from PASs which are generated by a state-of-the-art HPSG parser. We found that dependency trees transformed from these HPSG PASs achievedthe best dependency/ translation ... (upper)=PASs, orange (bottom)=word-level dependencies gener-ated from PASs, blue=newly appended dependencies.both during rule extracting and target dependency language model (LM) training.2.2 Dependency...
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Tài liệu Báo cáo khoa học: Peroxiredoxin II functions as a signal terminator for H2O2-activated phospholipase D1 doc
... other proteins, such as actin, protein kinase N,casein-kinase-2-like serine kinase and amphiphysin,Keywordshydrogen peroxide; peroxiredoxin II;phosphatidic acid; phospholipase D1; PMACorrespondenceM. ... none (as shown inFig. 2) to small amounts (as shown in Fig. 4). In allFig. 1. PLD activity time course upon PMA stimulation. In vivotransphosphatidylation PLD assays were performed as described ... ª 2005 FEBScases, however, a substantial increase in PrxII pull-down was observed after cellular stimulation.PrxII complexes with and precipitates PLD1in an in vitro binding assayTo confirm...
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Tài liệu Báo cáo khoa học: Stem–loop oligonucleotides as tools for labelling double-stranded DNA pdf
... Moreover, as the triple helix was not stable in the absence of inter-calator, it was possible to switch easily from conditionswhere the triple helix was very stable to conditionswhere it was totally ... the labelled fragment and the plasmid was observed.We were able to detect 250 attomol of plasmid withoutambiguity, and a band could be identified with as few as 50 attomol (Fig. 5).Padlock ... plasmid was dephos-phorylated by adding shrimp alcaline phosphatase (USB,Cleveland, OH, USA) (1 U for XmnI, 12 U for DraIII,2.5 U for XbaI) and incubating for 2 h at 37 °C. Phospha-tase was...
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Tài liệu Báo cáo khoa học: "Extracting Comparative Entities and Predicates from Texts Using Comparative Type Classification" pptx
... “stock-X” as a subject entity (SE), “stock-Y” as an object entity (OE), and “worth” as a comparative predicate (PR). These tasks are not easy or simple problems as described below. Classifying ... very useful in many areas such as marketing. We divide our work into two tasks to effectively build a comparison mining system. The first task is related to a sentence classification problem ... entropy method (MEM) as a representative probabilistic model, the support vector machine (SVM) as a kernel model, and transformation-based learning (TBL) as a rule-based model. Berger et...
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