Báo cáo khoa học: "A Word-Order Database for Testing Computational Models of Language Acquisition" docx

... valuable resource for investigators interested in computational models of natural language acquisition. 2 The Language Domain Database The focus of the language domain database, (hereafter ... A Word-Order Database for Testing Computational Models of Language Acquisition William Gregory Sakas Department of Computer Science PhD Programs in Linguistics ... ongoing, there are several disadvantages to formal modeling of language acquisition: • Certain proofs may involve impractically many steps for large language domains (e.g. those involving Markov...

Báo cáo khoa học: "A Formula Finder for the Automatic Synthesis of Translation Algorithms" docx

... the working formula of the desired nonmaximal algorithm, 5. The Feedback System for Research in Automatic Language Translation The formula finder is one of the three components of a proposed ... Laboratory of Harvard University A system of procedures and computer programs is proposed for the semi-automatic synthesis of Russian-English translation algorithms. For the purposes of automatic formula ... NF(i-l)] →INS (of, i) (4) C. TRIAL TRANSLATION AND FORMULA FINDING The language of the logical calculus is simple and mnemonic, and appears to be well suited for the for- mulation of translation...

Báo cáo khoa học: A mouse model for in vivo tracking of the major dust mite allergen Der p 2 after inhalation docx

... understanding of how airborneallergens interact with the airway mucosa and theimmune system after inhalation are of crucial import-ance.Mice are used widely for in vivo models of allergyand ... a Th2-type of T-cellresponse to the sensitizing allergen. Although the rele-vance of experimental mouse models as a description for human allergic disease may be questioned, theyoffer excellent ... i.t.instillation of FITC–OVA [23,24], we chose the 24 htime point for a closer evaluation of the tissue distribu-tion of [75Se]Der p 2 upon i.t. administration.Tissue distribution of radioactivity...

Báo cáo khoa học: A kinetic model for the burst phase of processive cellulases pptx

... strand.The notion of two partially overlapping phases of the slowdown is interesting in the light of the experi-mental observations of a ‘double exponential decay’reported for the rate of cellulolysis ... probability of hydrolysis of an ECn)icomplex (k2) is about 800 times larger than the proba-bility of disassociation (k3), and hence a processivity of that magnitude would be e xpected for an ... examples of howthe analysis of the kinetic parameters may elucidatecertain aspects of the activity of Cel7A. First, we con-sider changes in the ratio k1S0⁄ k3. This reﬂects theratio of the...

Báo cáo khoa học: A structural basis for the pH-dependence of coﬁlin F-actin interactions potx

... roughly a third of the surface of coﬁlin.No evidence for pH dependent conformational changesin the structure of coﬁlinWe could ﬁnd no evidence for substantial pH-dependentconformational changes ... thrustingforward of subdomain 2 with respect to the rest of themonomer.In this report we study the pH-dependence of the actin–coﬁlin interface and provide evidence for a pH-dependentmovement of ... the pH-sensitivity. We found no evidence for pH-dependent changes in the structure of coﬁlin itself, nor for the interaction of coﬁlin with G-actin. None of theactin-derived, coﬁlin-binding peptides...

Tài liệu Báo cáo khoa học: "A Fully Bayesian Approach to Unsupervised Part-of-Speech Tagging∗" docx

... clustering) of a set of data points is a sum of the amount of information lost in moving from Cto C′, and the amount that must be gained. It is de-ﬁned in terms of entropy H and mutual informationI: ... the other.Table 3 gives the results for this set of experi-ments. One or both versions of BHMM outperformMLHMM in terms of tag accuracy for all values of d, although the differences are not ... effects of reduced or absent dictionaryinformation, we ran a set of experiments inspiredby those of Smith and Eisner (2005). First, we col-lapsed the set of 45 treebank tags onto a smaller setof...

Tài liệu Báo cáo khoa học: A facile method for expression and puriﬁcation of the Alzheimer’s disease-associated amyloid b-peptide pdf

... high-levelexpression of Ab peptides should lead to aggregationand formation of inclusion bodies, and that Ab wouldbe less susceptible to degradation in this form. More-over, the formation of inclusion ... mean of the ﬂuorescence signal of at least eight wellscontaining aliquots of the same solution. The morphology of Ab aggregates formed from solutions incubated as abovebut in the absence of ThT ... since thesequence of Ab was ﬁrst determined, high-resolutionstructural analysis of Ab monomer and its assemblieshas been hampered because of the lack of an afford-able source of Ab peptides....

Tài liệu Báo cáo khoa học: "A Statistical Model for Unsupervised and Semi-supervised Transliteration Mining" pptx

... Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics, pages 469–477,Jeju, Republic of Korea, 8-14 July 2012.c2012 Association for Computational LinguisticsA ... symbol “q”. A sequence of multigrams formsan alignment of a source and target word. The prob-ability of a sequence of multigrams a is the product of the probabilities of the multigrams it contains.p(a) ... returns the set of all valid alignment se-quences a of a word pair (e, f ). The joint transliter-ation probability p1(e, f ) of a word pair is the sum of the probabilities of all alignment...

Tài liệu Báo cáo khoa học: "A Large Scale Distributed Syntactic, Semantic and Lexical Language Model for Machine Translation" doc

... Per-plexityła measure of difﬁculty of speech recognitiontasks. 94th Meeting of the Acoustical Society of Amer-ica, 62:S63, Supplement 1.T. Brants et al 2007. Large language models in ma-chine ... EmpiricalMethods in Natural Language Processing (EMNLP),858-867.E. Charniak. 2001. Immediate-head parsing for language models. The 39th Annual Conference on Association of Computational Linguistics ... Syntax-based language models for statistical machine transla-tion. MT Summit IX., Intl. Assoc. for Machine Trans-lation.C. Chelba and F. Jelinek. 1998. Exploiting syntacticstructure for language...

Tài liệu Báo cáo khoa học: "A Gibbs Sampler for Phrasal Synchronous Grammar Induction" docx

... veryfew researchers use word-based models for trans-lation per se, such models are still widely used inthe training of phrase-based models. These word-based models are used to ﬁnd the latent ... model per-forms well on languages for which the monotonebias of existing alignment and heuristic phraseextraction approaches fail. These results open theway for the development of more sophisticated models ... based models (DeNero and Klein, 2008) or a high order poly-nomial (O(|f |3|e|3))1 for a sub-class of weightedsynchronous context free grammars (Wu, 1997).Consequently, for such models...

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