Báo cáo khoa học: "ATOMIZATION IN GRAMMAR SHARING" ppt

Tài liệu Báo cáo khoa học: "Experiments in Semantic Classification" pptx

... a deepening of the lines be- tween the eyebrows, indicating concentration, deter- mination, opposition or hostility.” Definitions of this kind are again not easily handled in machine opera- ... adequate for our purposes. In giving a synonym definition, we are making use of a more general idea, namely, that of defining the intra- linguistic meaning of a word in terms of its relations ... of definition distinguishes the intra-linguistic meaning of a word, as represented by its relations with other words in the vocabulary, from its extra-linguistic meaning or reference (in the...

Tài liệu Báo cáo khoa học: "Coherence in Spoken Discourse*" pptx

... directed planning process on the part of the producer. In order to obtain a better understand- ing of the planning process we analyse spoken dis- course elicited in an experimental setting. Subjects ... remaining part of the paper is organised as follows. Section 2 contains a description of the ex- perimental setting in which the example discourse was obtained (Habel and Tappe, forthcoming). ... containing (U2) and (U3) is 'cut off' and not available for further attachment. Embedded within the expectation is an utterance describing the ongoing planning and searching pro-...

Tài liệu Báo cáo khoa học: "DANISH FIELD GRAMMAR IN TYPED PROLOG" pot

... may in turn be divided into subfields: INFFLD : nil; inffld( INFI, INF2 ) means that Danish has a possibility of two auxiliaries, (the finite + one infinite), and implicitly that if INF2 ... exist as such. Instead we have: FINIT = finit( VERB, VERB, TEMPG ) INFINIT = infinit( VERB, VERB, TEMPG ) VERB = Symbol which means that a verb, whether it be finite or infinite, is described ... adverbials modifying the verb; the inter- nal structure of the nexus field differs in main and subordinate clauses. The CF, for Content Field, contains two possible infinite verbforms, the objects...

Báo cáo khoa học: "Sparsity in Dependency Grammar Induction" doc

... This kind of sparsitybias avoids inducing competition between depen-dent types for each head type. We can achieve thedesired bias with a constraint on model posteri-ors during learning, using ... Learning Approaches In our experiments, we compare PR learningto standard expectation maximization (EM) andto Bayesian learning with a sparsity-inducingprior. The EM algorithm optimizes marginal ... USAtaskar@cis.upenn.eduAbstractA strong inductive bias is essential in un-supervised grammar induction. We ex-plore a particular sparsity bias in de-pendency grammars that encourages asmall number...

Tài liệu Báo cáo khoa học: Changes in purine speciﬁcity in tandem GAF chimeras from cyanobacterial cyaB1 adenylate cyclase and rat phosphodiesterase 2 pptx

... major interaction site for the adeninemoiety. In b1, an arginine residue (Ile417 in rPDE2)binds to N1 and a threonine (Ser419 in rPDE2) inter-acts with N7 and the N6amino group. The inter-actions ... cGMP binding [13], and, in PDE6, both of theamino acids corresponding to Phe433 ⁄ Asp434 in rPDE2A are required for cGMP binding [14].Our initial mutations in cyaB1 GAF B also involvedindividual ... (Phe433 ⁄ Asp434 in rPDE2) that interactswith the pyrimidine ring of the purine, either individu-ally or in various combinations in 12 different con-structs, enhanced cAMP binding but had little...

Tài liệu Báo cáo khóa học: Mutations in the hydrophobic core and in the protein–RNA interface affect the packing and stability of icosahedral viruses doc

... sterically interfere with side-chain packing in theprotein’s interior. Mutations that create cavities in hydro-phobic environments generally cause proteins to becomeless stable [44,45]. Using the ... generalunfolding, not leaving any hydrophobic cleft for bis-ANSbinding. High pressure is well known to denature proteins topartially folded states [15,17,38,48–50]. The large increase in bis-ANS binding ... a powerful tool for using tostudy cavities in proteins [24,25]. The coat protein ofbacteriophage MS2 contains two tryptophan residues, thuspermitting the use of intrinsic ﬂuorescence as a...

Tài liệu Báo cáo khoa học: Histones in functional diversification Core histone variants pdf

... containing poly(ADP-ribose) polymeraseactivity and other single strand RNA viral proteins.They show structural similarity to the DNA bindingdomain of leucine aminopeptidases, suggesting thatDNA ... ofH2B interaction, bind to the minor groove on the out-side of the superhelix (Fig. 3A). Thus, N-terminal tailsare involved in deciding the DNA–histone interactions,and to keep an intact ... neighbouring DNAwhile the C-termini provide docking domains forinternucleosomal interactions. Covalent modiﬁcationsof charged residues in the N-termini and a perturba-tion of the C-terminus results...

Tài liệu Báo cáo khoa học: Changes in rat liver mitochondria with aging Lon protease-like activity and N e-carboxymethyllysine accumulation in the matrix doc

... FUÆlgprotein)1Æh)1). In parallel with this decrease in activity, oxidized proteins accumulated in the matrix uponaging while the CML-modiﬁed protein content assessedby ELISA signiﬁcantly increased ... been found in several mammalsincluding human tissues and cell lines [24–26]. It isresponsible for the degradation of abnormal proteins andcertain short-lived speciﬁc proteins [27,28]. In this ... 0.06Ó FEBS 2003 Protein alteration in mitochondrial matrix with aging (Eur. J. Biochem. 270) 2297ADP/O ratios obtained with succinate or glutamate indicateno change in coupling efﬁciency. The...

Tài liệu Báo cáo khoa học: " Multimodal In-Car Dialogue" docx

... themulti-modal setting.Novel aspects in turn planning and realizationinclude the comprehensive modeling in a sin-gle, OWL-based ontology and an extended rangeof context-sensitive variation, including systemalignment ... specialized to a domain byinheriting and instantiating domain-speciﬁc typesand instances of the PS objects.5.3 Adaptive Turn PlanningThe ﬁssion component comprises detailed con-tent planning, media ... beintegrated and evaluated in a research car. In the following sections, we describe the func-tionality and architecture of the system, point outits special features in comparison to existing...

Tài liệu Báo cáo khoa học: "ISSUES IN NATURAL LANGUAGE ACCESS TO DATABASES FROM A LOGIC PROGRAMMING PERSPECTIVE" doc

... geography, most questions within the English subset are answered in well under one second, including queries which involve taking Joins between relations having of the order of a thousand ... complication of defining the semantics of predicates over indexed sets. Consider, for example, "Are the major cities of the Scandinavian countries linked by rail?". In cases involving aggregate ... aggregate information, such as "number of employees" in a department, is a speclal case of the general issue of storing and accessing non- primitive information, to be discussed below in...

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