Listar MA - Artículos por título
Mostrando ítems 1-20 de 134
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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 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 flexible logic-based approach to closeness using order of magnitude qualitative reasoning.
(Oxford Academic, 2020)In this paper, we focus on a logical approach to the important notion of closeness, which has not received much attention in the literature. Our notion of closeness is based on the so-called proximity intervals, which will ... -
A Formal Concept Analysis approach to hierarchical description of malware threats
(2024-07-04)The problem of intelligent malware detection has become increasingly relevant in the industry, as there has been an explosion in the diversity of threats and attacks that affect not only small users, but also large ... -
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 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 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 HLLC scheme for Ripa model
(Elsevier, 2016-01-01)We consider the one-dimensional system of shallow-water equations with horizontal temperature gradients (the Ripa system). We derive a HLLC scheme for Ripa system which falls into the theory of path-conservative approximate ... -
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 note on spacelike submanifolds through light cones in Lorentzian space forms
(Springer Nature, 2021-01-09)We analyse the intrinsic and extrinsic geometry of spacelike submanifolds in light cones of de Sitter and anti-de Sitter spacetimes by means of an explicit correspondence with the spacelike submanifolds through the light ... -
A probabilistic extension to Conway’s Game of Life
(Springer (Advances in computational mathematics), 2019)The “Game of life” model was created in 1970 by the mathematician John Horton Conway using cellular automata. Since then, different extensions of these cellular automata have been used in many applications. In this work, ... -
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 ... -
Aggregation of fuzzy graphs.
(Elsevier, 2024-06-26)Our study is centered on the aggregation of fuzzy graphs, looking for conditions under which the aggregation process yields another fuzzy graph. We conduct an in-depth analysis of the preservation of several important ... -
Aggregation of fuzzy subgroups.
(Elsevier, 2020-06-02)Given an aggregation function, and two fuzzy subgroups of a group, this study investigates whether the aggregation of them is also a fuzzy subgroup. It is proven that if the cardinal of the group is a prime power, then it ... -
Aggregation of fuzzy vector spaces.
(Institute of Information Theory and Automation, 2023)This paper contributes to the ongoing investigation of aggregating algebraic structures, with a particular focus on the aggregation of fuzzy vector spaces. The article is structured into three distinct parts, each addressing ... -
Aggregation of indistinguishability operators.
(Elsevier, 2021-05-04)The paper studies the aggregation of pairs of T-indistinguishability operators. More concretely we address the question whether is a T-indistinguishability operator if are T-indistinguishability operators. The answer ...