Báo cáo khoa học: "A Morphological Analysis Based Method for Spelling Correction" docx

Tài liệu Báo cáo khoa học: "A Statistical Analysis of Morphemes in Japanese Terminology" docx

... performance -based measure and the competence -based concept of produc- tivity. As the growth rate is by definition a performance -based measure, it is not unnatu- ral that the competence -based ... Good & Toulmin (1956) introduced the method of interpolating and extrapolating the number of types for ar- bitrary sample size, but it cannot be used for extrapolating to a very large size. ... For convenience, we introduce the notation for the complement of P(N), the reuse ratio: R(N) = 1 - P(N) (7) which expresses the probability that the existing types will be encountered. For...

Tài liệu Báo cáo khoa học: "A New Dataset and Method for Automatically Grading ESOL Texts" pdf

... of the Association for Computational Linguistics, pages 180–189,Portland, Oregon, June 19-24, 2011.c2011 Association for Computational LinguisticsA New Dataset and Method for Automatically ... text coherence for electronic essay scoring systems.Natural Language Engineering, 10(01):25–55, March.D. Nicholls. 2003. The Cambridge Learner Corpus: Er-ror coding and analysis for lexicography ... analyses of the perfor-180mance of individual systems, as yet there is no pub-lically available shared dataset for training and test-ing such systems and comparing their performance.As it is...

Báo cáo khoa học: "A Latent Dirichlet Allocation method for Selectional Preferences" pptx

... as information about whichtopics one of the arguments favors can help informthe topics chosen for the other. For example, classpairs such as (team, game), (politician, political is-sue) form ... showed the advantages of this ap-proach over Resnik’s information-theoretic class- based method on a pseudo-disambiguation evalu-ation. These methods obtain better lexical cover-age, but are unable ... extracted instances for these relations.2Our task is to compute, for eachargument aiof each relation r, a set of usual ar-gument values (noun phrases) that it takes. For example, for the relation...

Tài liệu Báo cáo khoa học: "A Syntax-Driven Bracketing Model for Phrase-Based Translation" pptx

... that the new model outperformsother previous methods and achieves asubstantial improvement over the baselinewhich is not syntactically informed.1 IntroductionThe phrase -based approach is widely ... then8: Update bracketing instances for index j9: end if10: end if11: end for 12: for each j ∈ c do13: :=  ∪ {bracketing instances from j}14: end for 15: Output: bracketing instances ... VP on the right,therefore CBMF is “VP-RC”.3.3 The Integration of the SDB Model intoPhrase -Based SMTWe integrate the SDB model into phrase -based SMT to help decoder perform syntax-drivenphrase...

Tài liệu Báo cáo khoa học: "A Novel Feature-based Approach to Chinese Entity Relation Extraction" ppt

... classification problem. Existing approaches include feature -based and kernel -based classification. Feature -based approaches transform the context of two entities into a liner vector of carefully ... is therefore reasonable to conclude that kernel -based especially tree-kernel approaches are not suitable for Chinese, at least at current stage. In this paper, we study a feature -based approach ... proposed in the literature of relation extraction. Among them, feature -based and kernel -based approaches are most popular. Kernel -based approaches exploit the structure of the tree that connects...

Tài liệu Báo cáo khoa học: A comparative analysis of the time-dependent antiproliferative effects of daunorubicin and WP631 pdf

... quantiﬁed by theBradford assay (Bio-Rad, Hercules, CA, USA). About30 lg of denatured proteins were subjected to electropho-resis on SDS-polyacrylamide gels (12% for p53 and 10% for actin), blotted ... Molecular Dynamicsdensitometer and normalized using actin as reference.Cytological analysis of multinucleated cells For morphological observation of multinucleated cells,a CompuCyte Laser Scanning ... viable cells, was observed (Fig. 4). A laser confocalmicroscopy analysis of cells treated with WP631 wasperformed at different times. For the sake of comparison,Fig. 5 shows both phase contrast...

Báo cáo khoa học: A novel 2D-based approach to the discovery of candidate substrates for the metalloendopeptidase meprin pot

... 15 mA per gel for 1 h 30 min and50 mA per gel for 5–6 h at 15 °C. For preparative gels,1 mg of protein was solubilized in 2 mL of buffer for 1 hat room temperature, centrifuged for 30 min at ... applicab-ility of a simple 2D IEF ⁄ SDS ⁄ PAGE -based image analysis procedure to analyse candidate substrates for meprin in a cell culture system -based approach (Figs 1and 2; Table 1; see Fig. ... pre-fractionation techniques (i.e. select-ing for cysteine-containing peptides or glycoproteins)may allow for higher resolution capacity but at thecost of information loss. For example, using ICATlabelling,...

Báo cáo khoa học: "A Computational Analysis of Complex Noun Phrase in Messages" docx

... task has been to process them for purposes of dissemina- tion and summarization, and we have developed a proto- type system for this purpose. To capture the information in the narrative, we ... propose a set of semantic relations for complex noun sequences, within a sublanguage analysis, that permits the proper bracketing of modifier and host for correct interpretation of noun phrases. ... information can be used to derive the proper bracketing, but it is first necessary to identify the modifier-host semantic patterns through a distributional analysis of the texts. The basis for...

Báo cáo khoa học: "A Generalized Vector Space Model for Text Retrieval Based on Semantic Relatedness" pot

... Association for Computational LinguisticsA Generalized Vector Space Model for Text Retrieval Based on Semantic RelatednessGeorge Tsatsaronis and Vicky PanagiotopoulouDepartment of InformaticsAthens ... experimentalmethodology was based only on randomly gen-erated pseudowords of varying sizes. Similarly,Voorhees (1993) reported a drop in retrieval per-formance when the retrieval model was based onWSD information. ... im-provement in retrieval performance using a fullysense -based system. Our approach differs fromthe aforementioned ones in that it expands theVSM model using the semantic information of aword thesaurus...

Tài liệu Báo cáo khoa học: A novel electron transport system for thermostable CYP175A1 from Thermus thermophilus HB27 doc

... Thetubes were placed on ice for 5 min, and then centrifugedat 13 000 g for 10 min. The supernatant was directly ana-lyzed by RP-HPLC. The HPLC analysis was performedusing an HPLC system (Prominence; ... There-fore, these results clearly indicate that the electrontransport system for CYP175A1 is composed of Fdx,FNR, and NADPH (Fig. 4B).All quantitative analyses were performed at 65 °C for 2 ... via OFOR and Fdx to CYP119 [13,14]. Inter-estingly, the electron transport system for CYP175A1did not utilize OFOR, although the T. thermophilusHB27 genome contains the genes encoding OFOR(TTC1591...

Xem thêm