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a social networkbased trust model for ecommerce

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

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... variouslanguage-pairs, one issue is that matching syn-tactic analysis can not always guarantee a goodtranslation, and violating syntactic structure doesnot always induce a bad translation. Marton andResnik ... Singapore, 2-7 August 2009.c2009 ACL and AFNLP A Syntax-Driven Bracketing Model for Phrase-Based TranslationDeyi Xiong, Min Zhang, Aiti Aw and Haizhou LiHuman Language TechnologyInstitute for ... Reordering Model for Statistical Machine Translation. In Proceedings ofACL-COLING 2006.Deyi Xiong, Min Zhang, Aiti Aw, and Haizhou Li.2008. Linguistically Annotated BTG for StatisticalMachine Translation....
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Tài liệu Báo cáo khoa học: "A Unified Syntactic Model for Parsing Fluent and Disfluent Speech∗" ppt

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... Communication Re-search Centre, University of Edinburgh.John Hale, Izhak Shafran, Lisa Yung, Bonnie Dorr, MaryHarper, Anna Krasnyanskaya, Matthew Lease, YangLiu, Brian Roark, Matthew Snover, and ... modified for use in a specialrepair grammar, which not only reduces the amountof available training data, but violates our intuitionthat most reparanda are fluent up until the actual editoccurs.The ... syntax trees using this model achieve high accuracy on the standardSwitchboard parsing task.1 IntroductionSpeech repairs occur when a speaker makes a mis-take and decides to partially retrace...
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Tài liệu Báo cáo khoa học: "A Phrase-based Statistical Model for SMS Text Normalization" ppt

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... groups and domains can be modeled separately without accessing and adapting the language model of the MT system for each SMS application. Another advantage is that the normalization module can ... normalization as a translation problem from the SMS language to the English language1 and we propose to adapt a phrase-based statistical MT model for the task. Evaluation by 5-fold cross validation ... a consensus translation technique to bootstrap parallel data using off-the-shelf translation sys-tems for training a hierarchical statistical transla-tion model for general domain instant...
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Tài liệu Báo cáo khoa học: "GPSM: A GENERALIZED PROBABILISTIC SEMANTIC MODEL FOR AMBIGUITY RESOLUTION" pptx

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... measure shows substantial im- provement in structural disambiguation over a syntax-based approach. 1. Introduction In a large natural language processing system, such as a machine translation ... R&D Road II, Science-Based Industrial Park Hsinchu, TAIWAN 30077, R.O.C. ABSTRACT In natural language processing, ambiguity res- olution is a central issue, and can be regarded as a ... information. Hence, we will show how to annotate a syntax tree so that various interpretations can be characterized differently. Semantic Tagging A popular linguistic approach to annotate a...
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Tài liệu Báo cáo khoa học: Trophoblast-like human choriocarcinoma cells serve as a suitable in vitro model for selective cholesteryl ester uptake from high density lipoproteins pdf

Tài liệu Báo cáo khoa học: Trophoblast-like human choriocarcinoma cells serve as a suitable in vitro model for selective cholesteryl ester uptake from high density lipoproteins pdf

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... proliferation andinvasion. Choriocarcinoma is a malignant neoplasm thatrepresents the early trophoblast of the attachment phase oras later invasive stage [46–48]. Thus, in most cases,choriocarcinoma ... reproductive and cardiovascular pathophy-siology. Proc. Natl. Acad. Sci. USA 96, 9322–9327.62. Imachi, H., Murao, K., Sayo, Y., Hosokawa, H., Sato, M., Niimi,M., Kobayashi, S., Miyauchi, A. , Ishida, ... & Takahara, J. (1999)Evidence for a potential role for HDL as an important source ofcholesterol in human adrenocortical tumors via the CLA-1 path-way. Endocr. J. 46, 27–34.63. Cherradi,N.,Bideau,M.,Arnaudeau,S.,Demaurex,N.,James,R.W.,...
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Báo cáo khoa học: "A DOM Tree Alignment Model for Mining Parallel Data from the Web" doc

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... is substantial re-search focusing on syntactic tree alignment model for machine translation. For example, (Wu 1997; Alshawi, Bangalore, and Douglas, 2000; Yamada and Knight, 2001) have studied ... for Machine Translation in the Americas. Munteanu D. S, A. Fraser, and D. Marcu. D., 2002. Improved Machine Translation Performance via Parallel Sentence Extraction from Comparable Corpora. ... three features, the maximum en-tropy model is trained on 1,000 pairs of web pages manually labeled as parallel or non-parallel. The Iterative Scaling algorithm (Pietra, Pietra and Lafferty...
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Báo cáo khoa học: "A Generalized Vector Space Model for Text Retrieval Based on Semantic Relatedness" pot

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... measure of relatedness does (lowy values for small x values and high y values for high x). The same pattern applies in the M&C and353-C data sets.4.2 Evaluation of the GVSM For the evaluation ... query, are computed similarly. A GVSM model aims at being able to retrieve documentsthat not necessarily contain exact matches of thequery terms, and this is its great advantage. Thisnew space ... Linguistics A Generalized Vector Space Model for Text RetrievalBased on Semantic RelatednessGeorge Tsatsaronis and Vicky PanagiotopoulouDepartment of InformaticsAthens University of Economics and Business,76,...
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Báo cáo khoa học: "A Class-Based Agreement Model for Generating Accurately Inflected Translations" pptx

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... exponential translation model for targetlanguage morphology. In ACL-HLT.C. Tillmann. 2004. A unigram orientation model for statisticalmachine translation. In NAACL.K. Toutanova, H. Suzuki, and A. ... similar agreement phenom-ena as probabilistic sequences.Factored Translation ModelsFactored transla-tion models (Koehn and Hoang, 2007) facilitate a more data-oriented approach to agreement modeling.Words ... phrase ta-ble annotations and can be easily implementedas a feature in many phrase-based decoders.1 IntroductionLanguages vary in the degree to which surface formsreflect grammatical relations....
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Báo cáo khoa học: "A Stacked Sub-Word Model for Joint Chinese Word Segmentation and Part-of-Speech Tagging" potx

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... information for each character.Each character can be assigned one of two possi-ble boundary tags: “B” for a character that begins a word and “I” for a character that occurs in the mid-dle of a word. ... representa-tion (Ramshaw and Marcus, 1995) and the Start/Endrepresentation (Kudo and Matsumoto, 2001) arepopular. For example, the label B-NN indicates that a character is located at the begging of a noun. ... POS information is allowed to inter-act with segmentation. Note that word segmentationcan also be formulated as a sequential classificationproblem to predict whether a character is located atthe...
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Báo cáo khoa học: "A Language-Independent Unsupervised Model for Morphological Segmentation" pot

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... related words and detect regular trans-formational patterns. A range of automated algorithms for morpholog-ical analysis cope with concatenative phenomena,and base their mechanics on statistics ... thank Emily Pitler and Samarth Ke-shava for making available the code of the RePortSalgorithm, and Stefan Bordag and Delphine Bern-hard for running their algorithms on the Germandata. Many ... presentedhere have been shown to improve accuracy (Kurimoet al., 2006).Another motivation for evaluating the system on a task rather than on manually annotated data isthat linguistically motivated morphological...
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Báo cáo khoa học: "A Hierarchical Phrase-Based Model for Statistical Machine Translation" pptx

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... Linguistics A Hierarchical Phrase-Based Model for Statistical Machine TranslationDavid ChiangInstitute for Advanced Computer Studies (UMIACS)University of Maryland, College Park, MD 20742, USAdchiang@umiacs.umd.eduAbstractWe ... USAdchiang@umiacs.umd.eduAbstractWe present a statistical phrase-based transla-tion model that uses hierarchical phrases—phrases that contain subphrases. The model is formally a synchronous ... statistical machine translation.Natural Language Engineering. To appear.Daniel Marcu and William Wong. 2002. A phrase-based, joint probability model for statistical machinetranslation. In Proceedings...
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Báo cáo khoa học: "A Generative Constituent-Context Model for Improved Grammar Induction" docx

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... Societyof America, pages 547–550.Eric Brill. 1993. Automatic grammar induction and parsing freetext: A transformation-based approach. In ACL 31, pages259–265.Glenn Carroll and Eugene Charniak. 1992. ... shown, but are modeled.Parameter search is also local; parameters whichare locally optimal may be globally poor. A con-crete example is the experiments from (Carroll andCharniak, 1992). They ... not beat RBRANCH in F1).6EMILE and ABL are lexical systems described in (van Za-anen, 2000; Adriaans and Haas, 1999). CDC-40, from (Clark,2001), reflects training on much more data (12M...
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Báo cáo khoa học: "The Best of Both Worlds – A Graph-based Completion Model for Transition-based Parsers" pot

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... a suitable amount of training data, the model can thus learn to make the correct deci-sion. The dynamic-programming based graph-based parser is designed in such a way that anyscore calculation ... inthe beam are recalculated based on a scoring model inspired by the graph-based parsing ap-proach, i.e., taking complete factors into accountas they become incrementally available. As a con-sequence ... algorithm we are looking for has tobe transition-based at the top level. The advan-tages of the graph-based approach – a more glob-ally informed basis for the decision among dif-ferent attachment...
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Báo cáo khoa học: "A Joint Rule Selection Model for Hierarchical Phrase-based Translation" pptx

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... Zhang, Aiti Aw, and Haizhou Li.2009. A Syntax-Driven Bracketing Model for Phrase-Based Translation. In Proc. ACL, pages315-323.Kenji Yamada and Kevin Knight. 2001. A Syntax-based Statistical ... of classes may cause serious datasparseness problem and thereby degrade the clas-sification accuracy, we approximate CBSM by a binary classification problem which can be solvedby the maximum ... trans-lation in traditional phrase-based models (Koehnet al., 2003; Xiong et al., 2006), but also char-acterize the complicated long distance reorderingsimilar to syntactic based statistical...
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Báo cáo khoa học: "A Generative Entity-Mention Model for Linking Entities with Knowledge Base" doc

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... (McNamee and Dang, 2009). These metrics are:  Micro-Averaged Accuracy (Micro-Accuracy): measures entity linking accuracy averaged over all the name mentions;  Macro-Averaged Accuracy (Macro-Accuracy): ... name and the National Basketball Association is the referent entity. “He won his first [[National Basketball Association | NBA]] championship with the Bulls” Therefore, we can get the training ... misspellings) of an entity's name using a statistical translation model. Given an entity’s name s, our model assumes that it is a translation of this entity’s full name f using the IBM model 1...
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