254 research outputs found

    Remarks on Compositionality (with reference to Gennadij Zeldoviè's article “On Russian Dative Reflexive Constructions: Accidental or Compositional”)

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    Zeldovič’s article “On Russian Dative Reflexive Constructions: Accidental or Compositional” is very interesting. It contains a good deal of insightful observations and is painstakingly argued. Its research object is the Russian dative reflexive construction (DRC) like Ивану не работается ‘Ivan does not feel like reading’. The aim of the article is to show that the DRC is fully compositional. Like many other works by Zeldovič, the article is written from the radical-pragmatic perspective and constitutes a very good illustration of this trend in linguistic research. The language material that it analyzes has often been investigated within more traditional frameworks, especially in Russian linguistics, which makes Zeldovič’s novel approach to the old problem particularly interesting. In this short note I would like (by way of discussion) to address two problems connected not so much with the DRC itself as with methodological issues concerning compositionality. I will dwell on two aspects: on the question of how we understand the very concept of compositionality, and what instruments we employ to demonstrate it

    Quantity and degree assessment in an RDF.based semantic language

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    This paper introduces a semantic language developed with the objective to be used in a semantic analyzer based on linguistic and world knowledge. Linguistic knowledge is provided by a Combinatorial Dictionary and several sets of rules. Extra-linguistic information is stored in an Ontology. The meaning of the text is represented by means of a series of RDF-type triples of the form predicate (subject, object). Semantic analyzer is one of the options of the multifunctional ETAP-3 linguistic processor. The analyzer can be used for Information Extraction and Question Answering. We describe semantic representation of expressions that provide an assessment of the number of objects involved and/or give a quantitative evaluation of different types of attributes. We focus on the following aspects: 1) parametric and non-parametric attributes; 2) gradable and non-gradable attributes; 3) ontological representation of different classes of attributes; 4) absolute and relative quantitative assessment; 5) punctual and interval quantitative assessment; 6) intervals with precise and fuzzy boundarie

    Gramaticalización de la resolución de conflictos sintácticos: las construcciones asimétricas = ГРАММАТИКАЛИЗАЦИЯ СПОСОБОВ РАЗРЕШЕНИЯ СИНТАКСИЧЕСКИХ КОНФЛИКТОВ: АСИММЕТРИЧНЫЕ КОНСТРУКЦИИ

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    Se analizan las construcciones coordinativas rusas que contienen las conjunciones bipartitas. Mostramos que pueden formar construcciones asimétricas que tienen la naturaleza dual. Por un lado la oración está dentro de la norma gramatical. Por otro lado su estructura está deformada. Construcciones asimétricas es un método gramaticalizado de resolver varios tipos de conflictos que surgen al generar construcciones coordinativas

    Uwagi o kompozycyjności (w związku z artykułem Genadija Zeldowicza "O rosyjskich refleksywnych konstrukcjach celownikowych")

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    W artykule odnoszę się do dwu metodologicznych kwestii: 1) Czym jest kompozycyjność? Utrzymuję, że jeśli jednostka językowa jest w pełni kompozycyjna, nie ma wówczas potrzeby, aby gdziekolwiek w opisie języka wskazywać na jej istnienie; 2) W jaki sposób kompozycyjność winna się przejawiać? Sugeruję, że owo przejawianie się winno respektować ostrzejsze niż w dyskutowanym artykule wymagania zasad logiki.We address two methodological issues: 1) What is compositionality? We maintain the idea that if a linguistic unit is fully compositional, then in no place of the linguistic description do we need to efer to its existence. 2) How should the compositionality be demonstrated? We suggest that this demonstration should meet higher standards of logical rigor

    Universal Dictionary of Concepts

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    A universal dictionary of concepts, developed as a part of the ongoing effort to create a semantic intermediary language for global information exchange, is presented. The article describes basic principles and contents of the dictionary and outlines the current state of the project. The dictionary can evolve into an open and freely available language-independent resource with many potential applications. For example, the extensible dictionary of concepts can serve as a pivot to uniformly record and link meanings of words of different languages and facilitate creation of bi- and multilingual dictionaries. Another possible use is word sense markup of corpora. It could bring rich extra benefits due to the fact that the same set of concepts is going to be linked with major world languages including Russian, English, Spanish etc. and supported by multiple text analysis tools. There is a possibility of cooperation and exchange between this dictionary project and other projects, which could enhance the output and eventually spare a lot of parallel effort

    Trading multiple mean reversion

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    How should one construct a portfolio from multiple mean-reverting assets? Should one add an asset to portfolio even if the asset has zero mean reversion? We consider a position management problem for an agent trading multiple mean-reverting assets. We solve an optimal control problem for an agent with power utility, and present a semi-explicit solution. The nearly explicit nature of the solution allows us to study the effects of parameter mis-specification, and derive a number of properties of the optimal solution

    Parsing the SynTagRus Treebank of Russian

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    We present the first results on parsing the SYNTAGRUS tree bank of Russian with a data-driven dependency parser, achieving labeled attachment score of over 82%and an unlabeled attachment score of 89%.A feature analysis shows that high parsing accuracy is crucially dependent on the use of both lexical and morphological features. We conjecture that the latter result can be generalized to richly inflected languages in general, provided that sufficient amounts of training data are available

    Enhancing Resource Management through Prediction-based Policies

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    Task-based programming models are emerging as a promising alternative to make the most of multi-/many-core systems. These programming models rely on runtime systems, and their goal is to improve application performance by properly scheduling application tasks to cores. Additionally, these runtime systems offer policies to cope with application phases that lack in parallelism to fill all cores. However, these policies are usually static and favor either performance or energy efficiency. In this paper, we have extended a task-based runtime system with a lightweight monitoring and prediction infrastructure that dynamically predicts the optimal number of cores required for each application phase, thus improving both performance and energy efficiency. Through the execution of several benchmarks in multi-/many-core systems, we show that our prediction-based policies have competitive performance while improving energy efficiency when compared to state of the art policies.Comment: Postprint submitted and published at Euro-Par2020: International European Conference on Parallel and Distributed Computing (Springer) (https://link.springer.com/chapter/10.1007%2F978-3-030-57675-2_31

    Enhancement of the upper critical field by nonmagnetic impurities in dirty two-gap superconductors

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    Quasiclassic Uzadel equations for two-band superconductors in the dirty limit with the account of both intraband and interband scattering by nonmagnetic impurities are derived for any anisotropic Fermi surface. From these equations the Ginzburg-Landau equations, and the critical temperature TcT_c are obtained. An equation for the upper critical field, which determines both the temperature dependence of Hc2(T)H_{c2}(T) and the orientational dependence of Hc2(θ)H_{c2}(\theta) as a function of the angle θ\theta between H{\bf H} and the c-axis is obtained. It is shown that the shape of the Hc2(T)H_{c2}(T) curve essentially depends on the ratio of the intraband electron diffusivities D1D_1 and D1D_1, and can be very different from the standard one-gap dirty limit theory. In particular, the value Hc2(0)H_{c2}(0) can considerably exceed 0.7TcdHc2/dTc0.7T_cdH_{c2}/dT_c, which can have important consequences for applications of MgB2MgB_2. A scaling relation is proposed which enables one to obtain the angular dependence of Hc2(θ)H_{c2}(\theta) from the equation for Hc2H_{c2} at Hc{\bf H}\| c. It is shown that, depending on the relation between D1D_1 and D2D_2, the ratio of the upper critical field Hc2/Hc2H_{c2}^\|/H_{c2}^\perp for Hab{\bf H}\| ab and Hab{\bf H}\perp ab can both increase and decrease as the temperature decreases. Implications of the obtained results for MgB2MgB_2 are discussed
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