an hdp model for inducing combinatory categorial grammars
Tài liệu Báo cáo khoa học: "An Unsupervised Model for Joint Phrase Alignment and Extraction" ppt
... 5-gram model. For GIZA ++, we use the standard training reg-imen up to Model 4, and combine alignmentswith grow-diag-final-and. For the proposedmodels, we train for 100 iterations, and use the ... for topic models. Journal of Machine Learning Research,10:1801–1828.Franz Josef Och, Christoph Tillmann, and Hermann Ney.1999. Improved alignment models for statistical ma-chine translation. ... in each corpus for TM andLM training, tuning, and testing.7.1 Experimental SetupThe data for French, German, and Spanish are fromthe 2010 Workshop on Statistical Machine Transla-tion (Callison-Burch...
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Tài liệu Báo cáo khoa học: "An expressive formalism for describing tree-based grammars" docx
... ((Candito, 1999), (Gaiffe et al., 2002)),2As we shall later see, a content can in fact be multi-dimensional and integrate for instance both semantic and syn-tax/semantics interface information.3We ... constraints on these sets. For instance,let us consider 2 nodes x and y of the description.Assuming we associate x with the integer i andy with j, we can translate the dominance relationx → y the ... Patterns in metarules. In A. Abeilleand O. Rambow, editors, Tree Adjoining Grammars: formal, co mputational and linguistic aspects. CSLIpublications, Stanford .M.H. Candito. 1999. Repr´esentation...
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Báo cáo khoa học: "PREDICTIVE COMBINATORS A METHOD PROCESSING OF COMBINATORY CATEGORIAL GRAMMARS" doc
... of Dutch and English. Language 61:523-568. Steedman, M. 1987. Combinators and Grammars. To appear in R. Oehrle, E. Bach, and D. Wheeler (eds.), Categorial Grammars and Natural Lan- guage ... Grammar. Center for the Study of Language and Information, Stanford University, Palo Alto, Calif. Sag, I. 1987. Grammatical Hierarchy and Linear Precedence. To appear in Syntax and Semantics, Volume ... natural language can force the parser to search exhaus- tively with respect to the grammar. While heuristics used even with a large search space can provide the means for tuning performance for...
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Báo cáo khoa học: "POLYNOMIAL TIME PARSING OF COMBINATORY CATEGORIAL GRAMMARS*" pptx
... M. Steedman. Combinators and grammars. In 1~. Oehrle, E. Bach, and D. Wheeler, editors, Cat- egorial Grammars and Natural Language Struc- tures. Foris, Dordrecht, 1986. M. Steedman. Parsing ... recognition of Combinatory Categorial Grammars, Linear In- dexed Grammars, and Tree Adjoining Grammars. In International Workshop of Parsing Technolo- gies~ Pittsburgh, PA, 1989. D. J. Weir and A. ... only forward combinations) which span the substrings ai ã ak and ak+l aj. Therefore we need to consider all values for k between i through j - 1 and consider the entries in L[i,k]~,q] and...
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Báo cáo khoa học: "A Tree Transducer Model for Synchronous Tree-Adjoining Grammars" pdf
... children.A tree language is any subset of TΣ(V ) for some alphabet Σ and set V . Given another al-phabet ∆ and a set Y , a tree transformation is arelation τ ⊆ TΣ(V ) ì T(Y ). In many of ourexamples ... naturallanguage transformations. Machine Translation,21(2):121–133.Andreas Maletti. 2008. Compositions of extended top-down tree transducers. Inform. and Comput., 206(9–10):1187–1196.Jonathan ... explicitly.4 Extended tree transducer An extended tree transducer is a theoretical model that computes a tree transformation. Such trans-ducers have been studied first by Arnold andDauchet (1982) in...
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Báo cáo Y học: An alternative model for photosystem II/light harvesting complex II in grana membranes based on cryo-electron microscopy studies pptx
... withsoftware and Dr S. Prince, Dr S. V. Rue and Prof. G. Garab for useful suggestions and debate. T. D. Flint is thanked f or plant g rowthand specimen p reparation as well as L. Child and P. McPhie for ... adjacent membrane. This đts thestructural and biochemical data, w here PSII core complexescan be observed in one discrete plane and membranefraction, and LHCII complexes can be observed in anothermembrane ... corecomplexes.Biochemical evidence for two grana membrane fractionsBiochemical evidence for the presence of two differentmembrane types in grana thylako id membrane fractions isscant. A s earch f or conditions...
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Tài liệu Báo cáo khoa học: "A probabilistic generative model for an intermediate constituency-dependency representation" pptx
... Head-Driven StatisticalModels for Natural Language Parsing. Ph.D. the-sis, University of Pennsylvania.Marie-Catherine de Marneffe and Christopher D. Man-ning. 2008. The Stanford Typed DependenciesRepresentation. ... metric, as for UAS,and BAS. Concerning the other metrics, as thenumber of k-best candidates increases, the PCFG model outperforms the TDS-reranker both accord-ing to the BDS and the JDS.Unfortunately, ... among the given candi-dates? Since no parser currently exists for the TDSrepresentation, we utilize a state of the art parser for PS trees (Charniak, 1999), and transform eachcandidate to TDS....
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Tài liệu Báo cáo khoa học: "An Affect-Enriched Dialogue Act Classification Model for Task-Oriented Dialogue" doc
... vector-based models (Sridhar, Bangalore, & Narayanan, 2009), and most recently, feature-enhanced latent semantic analysis (Di Eugenio, Xie, & Serafin, 2010), have shown promise. These models ... annotation was selected for this project for two reasons. First, manual annotation is more robust than automatic recognition of facial action units, and manual annotation facilitated an exploratory, ... expressions can signifi-cantly enhance dialogue act classification for two types of dialogue acts, GROUNDING and REQUEST FOR FEEDBACK. Table 4. Classification accuracy and kappa for spe-cialized...
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Tài liệu Báo cáo khoa học: "An Entity-Mention Model for Coreference Resolution with Inductive Logic Programming" pdf
... Mes-sage understanding Conference (MUC-6), pages 45–52, San Francisco, CA. Morgan Kaufmann Publishers.X. Yang and J. Su. 2007. Coreference resolution us-ing semantic relatedness information from ... “Mr. Powell”, and therefore refers to a maleperson and cannot co-refer with “she”.The entity-mention model based on Eq. (2) per-forms coreference resolution at an entity-level. For simplicity, ... named-entity and contains an indefiniteNP in a subject position. This supports the claimsin (Yang et al., 2004a) that coreferential informa-tion is an important factor to evaluate a candidate an- tecedent...
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An Equilibrium Model of Rare-Event Premia and Its Implication for Option Smirks potx
... include Gilboa and Schmeidler (1989), Epstein and Wang(1994), Anderson, Hansen, and Sargent (2000), Chen and Epstein (2002),Hansen and Sargent (2001), Epstein and Miao (2003), Routledge and Zin(2002), ... 2005134 An Equilibrium Model of Rare-EventPremia and Its Implication for Option SmirksJun LiuAnderson School at UCLAJun PanMIT Sloan School of Management, CCFR and NBERTan WangSauder School ... Epstein, Lars Hansen, John Heaton, MichaelJohannes, Monika Piazzesi, Bryan Routledge, Jacob Sagi, Raman Uppal, Pietro Veronesi, Jiang Wang, an anonymous referee, and seminar participants at CMU,...
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Báo cáo khoa học: "An exponential translation model for target language morphology" pptx
... number.ã For verbs, generated forms had to match theoriginal form for tense and negation.ã For adjectives, generated forms had to matchthe original form for degree of comparison andnegation.ã For ... Chiang (2007), a weighted gram-mar of this form can be collected and scored by sim-ple extensions of standard methods for phrase-basedtranslation and efficiently combined with a language model ... based on any submodels and heuristic es-timates that can already be computed for that itemand used to arrange the chart items into a priorityqueue. Combinations of one or more rules that spana...
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Báo cáo khoa học: "An Ensemble Model that Combines Syntactic and Semantic Clustering for Discriminative Dependency Parsing" pptx
... baseline.The ensemble model outperforms all of the individ-ual models and does so very consistently across bothfirst-order and second-order dependency models.Error Analysis To better understand the contri-bution ... individual models in al-most all cases. Among the individual models, the model with Brown semantic clusters clearly outper-forms the baseline, but the two models with syntac-tic clusters perform ... Nivre and McDonald, 2008; Attardi andDell’Orletta, 2009; Surdeanu and Manning, 2010).Essentially, all of these approaches combine dif-ferent dependency parsing systems, i.e. transition-based and...
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