Listar Matemática Aplicada - (MA) por título
Mostrando ítems 1-20 de 213
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2D GPU-based HySEA model for tsunami simulation. Some practical examples.
(2014-07-11)A two-waves TVD-WAF type scheme for solving 2D shallow-water equation is considered together with a first and second order HLL scheme. Comparison among the different schemes will be performed to check the performance for ... -
A conversational recommender system for diagnosis using fuzzy rules.
(Elsevier, 2020-09-15)Graded implications in the framework of Fuzzy Formal Concept Analysis are used as the knowledge guiding the recommendations. An automated engine based on fuzzy Simplification Logic is proposed to make the suggestions to ... -
A Curvature Inequality Characterizing Totally Geodesic Null Hypersurfaces
(Springer, 2023)A well-known application of the Raychaudhuri equation shows that, under geodesic completeness, totally geodesic null hypersurfaces are unique which satisfy that the Ricci curvature is nonnegative in the null direction. ... -
A discrete-time queueing system with three different strategies
(Elsevier, 2021-09)We consider a discrete-time Geo/G/1/inf system in which a customer that finishes its first essential service may opt to abandon the system, to receive a second optional service or to go at the head of the queue in order ... -
A Discrete-Time retrial queueing system with service upgrade
(2015-06-10)We study the Markov chain underlying the considered queueing system obtaining the gen- erating function of the number of customers in the orbit and in the system as well as the stationary distribution of the time that a ... -
A discrete-time system with uncertainty information
(2017-02-14)This paper considers a discrete-time queueing system with uncertainty information, that is, an arriving customer may opt, with a certain probability, to be served under a Last Come First Served (LCFS) discipline or, with ... -
A family of Dirichlet Morrey spaces.
(Taylor & Francis, 2019-02-03)To each weighted Dirichlet space D_p, 0<p<1, we associate a family of Morrey-type spaces D_{λ,p}, 0<λ<1, constructed by imposing growth conditions on the norm of hyperbolic translates of functions. We indicate some of the ... -
A general vertical decomposition of Euler equations: Multilayer-moment models
(Elsevier, 2022-09-13)In this work, we present a general framework for vertical discretizations of Euler equations. It generalizes the usual moment and multilayer models and allows to obtain a family of multilayer-moment models. It considers a ... -
A generalized framework to consider positive and negative attributes in formal concept analysis
(2014-10-23)In Formal Concept Analysis the classical formal context is analized taking into account only the positive information, i.e. the presence of a property in an object. Nevertheless, the no presence of a property in an object ... -
A generalized Hilbert operator acting on conformally invariant spaces
(Springer Basel AG, 2018)If μ is a positive Borel measure on the interval [0,1), we let H_μ be the Hankel matrix with entries μ_{n,k}=μ_{n+k}, where μ_n denotes the moment of order n of the measure μ. This matrix formally induces an operator on ... -
A Genetic Algorithm and an Exact Algorithm for Classifying the Items of a Questionnaire Into Different Competences
(2014-07-16)A Likert scale is a psychometric response scale primarily used in questionnaires to obtain participant's preferences or degree of agreement with a statement or set of statements. Respondents are asked to indicate their ... -
A Geo[X]/G[X]/1 retrial queueing system with removal work and total renewal discipline
(Elsevier, 2018-02)In this paper we consider a discrete-time retrial queueing system with batch arrivals of geometric type and general batch services. The arriving group of customers can decide to go directly to the server expelling out of ... -
A Hankel matrix acting on spaces of analytic functions.
(Springer, 2017-11-02)If μ is a positive Borel measure on the interval [0, 1) we let H_μ be the Hankel matrix { μ_{n,k} }_{n,k} with entries μ_{n,k} =μ_{n+k}, where, for μ_n denotes the moment of order n of μ. This matrix induces formally an ... -
A high dimensional functional time series approach to evolution outlier detection for grouped smart meters
(Taylor and Francis, 2022-01-01)Smart metering infrastructures collect data almost continuously in the form of fine-grained long time series. These massive data series often have common daily patterns that are repeated between similar days or seasons and ... -
A logic-based approach to compute a direct basis from implications
(2014-09-19)Formal Concept Analysis is an emergent area in the topic of data analysis based on lattice theory. In this framework, a context is defined as the relation between a set of objects and a set of attributes and from here it ... -
A new approach to the study of lightlike manifolds
(2015-12-18)Proponemos un nuevo enfoque al estudio de las subvariedades luz, cuyo estudio hasta el momento dependía de una elección arbitraria de una distribución pantalla que hacía completamente inadecuado el estudio de la geometría ... -
A non markovian retrial queueing system
(Elsevier, 2023)This paper studies a discrete-time queueing system in which a customer who enters in the system with a server occupied may choose to go to the retrial group or to begin its service displacing to the retrial group the ... -
A Non Markovian Retrial Queueing System
(2022-06-13)Researches on retrial queues with non-geometrical retrial times is motivated by real computers and telecommunication networks, where retrial times can hardly be geometrical distributed. The inherent difficulty with ... -
A Portable Knowledge Based System for Car Breakdown Evaluation
(2014-07-16)Desarrollo de un sistema experto para ayudar a conductores a tomar decisiones en el caso que se encienda alguna luz en el salpicadero. -
A proposal of a mixed diagnostic system based on decision trees and probabilistic experts rules
(2023)Decision trees and rule-based expert systems (RBES) are standard diagnostic tools. We propose a mixed technique that starts with a probabilistic decision tree where information is obtained from a real world data base. The ...