• A discrete-time queueing system with three different strategies 

      Atencia-McKillop, Ivan; Padilla-Domínguez, Yolanda; Galán-García, José Luis; Aguilera-Venegas, Gabriel; Rodriguez-Cielos, Pedro; [et al.] (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 Non Markovian Retrial Queueing System 

      Atencia-McKillop, Ivan; Galán-García, José Luis; Aguilera-Venegas, Gabriel; Rodriguez-Cielos, Pedro; Galán-García, María Ángeles; [et al.] (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 

      Roanes-Lozano, Eugenio; Galán-García, José Luis; Aguilera-Venegas, Gabriel (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 RBES for Generating Automatically Personalized Menus 

      Roanes-Lozano, Eugenio; Galán-García, José Luis; Aguilera-Venegas, Gabriel (2016-07-14)
      Food bought at supermarkets in, for instance, North America or the European Union, give comprehensive information about ingredients and allergens. Meanwhile, the menus of restaurants are usually incomplete and cannot be ...
    • A stepwise Cas course for solving First-Order Partial Diferential Equations 

      Aguilera-Venegas, Gabriel; Galán-García, José Luis; Galán-García, María Ángeles; Padilla-Domínguez, Yolanda; Rodriguez-Cielos, Pedro; [et al.] (2014-07-16)
      Partial Differential Equations (PDE) is a very important topic in advance Mathematics for Engineering. The three main first-order PDE problems that a basic course must deal with are: \begin{enumerate} \item {\bf Pfaff ...
    • Advanced techniques to compute improper integrals using a CAS 

      Aguilera-Venegas, Gabriel; Galán-García, José Luis; Galán-García, María Ángeles; Padilla-Domínguez, Yolanda; Rodriguez-Cielos, Pedro; [et al.] (2014-07-16)
      Let us consider the following types of improper integrals: $$ \int_0^\infty f(t)\:{\rm d}t \qquad ; \qquad \int_{-\infty}^0 f(t)\:{\rm d}t \qquad {\rm and} \qquad \int_{-\infty}^\infty f(t)\:{\rm d}t $$ \medskip Let ...
    • An Accelerated-Time Simulation for Traffic Flow in a Smart City 

      Aguilera-Venegas, Gabriel; Galán-García, José Luis; Campos, José Carlos; Rodríguez, Pedro (2013-09-17)
    • An Approach to Overtaking Station Layout Diagram Design Using Graphs 

      Roanes-Lozano, Eugenio; Galán-García, José Luis; Aguilera-Venegas, Gabriel (2020-07-24)
      The authors have approached in the past different railway engineering problems (e.g. [1,2]) and have developed software for the Spanish Railway Foundation [3], mainly using computer algebra systems (CAS). Now a CAS is used ...
    • Comparing and Tuning Machine Learning Algorithms to Predict Type 2 Diabetes Mellitus 

      Aguilera-Venegas, Gabriel; López-Molina, Amador; Galán-García, José Luis; Rojo-Martínez, Gemma (2022-06-13)
      The main goals of this work is to study and compare machine learning algorithms to predict the development of type 2 diabetes mellitus. Four classifi cation algorithms have been considered, studying and comparing the ...
    • Computer Algebra-based RBES personalized menu generator 

      Roanes-Lozano, Eugenio; Galán-García, José Luis; Aguilera-Venegas, Gabriel (2015-07-27)
      People have many constraints concerning the food they eat. These constraints can be based on religious believes, be due to food allergies or to illnesses, or can be derived just from personal preferences. Therefore, ...
    • A Discrete-time Queueing System With Imperfect Information for the Server 

      Atencia-McKillop, Ivan; Galán-García, José Luis; Aguilera-Venegas, Gabriel; Rodriguez-Cielos, Pedro; Padilla-Domínguez, Yolanda; [et al.] (2020-07-24)
      We consider a discrete-time Geo=G=1=1 system in which a customer that finishes its fi rst essential service may opt to abandon the system, to receive a second optional service or to place at the head of the queue in order ...
    • A fast functional approach to personalized menus generation using set operations 

      Roanes-Lozano, Eugenio; Galán-García, José Luis; Aguilera-Venegas, Gabriel (2018-06-14)
      The authors developed some time ago a RBES devoted to preparing personalized menus at restaurants according to the allergies, religious constraints, likes and other diet requirements as well as products availability. A ...
    • Improving CAS Capabilities: New Rules for Computing Improper Integrals 

      Galán-García, José Luis; Aguilera-Venegas, Gabriel; Rodriguez-Cielos, Pedro; Galán-García, María Ángeles; Padilla-Domínguez, Yolanda; [et al.] (2016-07-14)
      There are diferent applications in Engineering that require to compute improper integrals of the first kind (integrals defined on an unbounded domain) such as: the work required to move an object from the surface of the ...
    • Introducing probabilistic celular automata. A versatile extension of Game of Live 

      Aguilera-Venegas, Gabriel; Egea-Guerrero, Rocío; Galán-García, José Luis (2018-06-14)
      The "Game of life" model was created in 1970 by the mathematician Jonh Horton Conway using cellular automata. Since then, di erent extensions of these cellular automata have been used in many applications, such as car ...
    • Making more flexible ATISMART+ model for traffic simulations using a CAS 

      Ramírez, Manuel; Gavilán, José Manuel; Aguilera-Venegas, Gabriel; Galán-García, José Luis; Galán-García, María Ángeles; [et al.] (2015-07-28)
      Traffic simulations usually require the search of a path to join two different points. Dijkstra’s algorithm [1] is one of the most commonly used for this task due to its easiness and quickness. In [2, 3] we developed an ...
    • Mejoras en los proyectos de simulación de flujo de tráfico en tiempo acelerado 

      Ramírez López, Manuel (2016-05-20)
      Se han desarrollado cuatro mejoras en los proyectos de simulación de flujo de tráfico en tiempo acelerado. Los proyectos [1] y [2] realizan una simulación de flujo de tráfico en un CAS, Maxima, y usan Java, para realizar ...
    • New functions for random samples generation using Stata 15 

      Aguilera-Venegas, Gabriel; Galán-García, José Luis; Galán-García, María Ángeles; Padilla-Domínguez, Yolanda; Rodriguez-Cielos, Pedro (2019-10-30)
      In the 2017 Spanish Stata Users Group meeting, held in Madrid on October 19th, we introduced some functions for generating random samples from continuous and discrete distributions using STATA 13. In this talk, we will ...
    • New rules for improving CAS capabilities when computing improper integrals. Applications in Math Education 

      Galán-García, José Luis; Aguilera-Venegas, Gabriel; Rodriguez-Cielos, Pedro; Padilla-Domínguez, Yolanda; Galán-García, María Ángeles (2018-06-22)
      In many Engineering applications the computation of improper integrals is a need. In [1] we pointed out the lack of some CAS when computing some types of improper integrals. Even more, the work developed showed that some ...
    • A New Web-stepwise Solver for Ordinary Differential Equations 

      Galán-García, José Luis; Aguilera-Venegas, Gabriel; Le Goff, Morgan; Rodriguez-Cielos, Pedro; Galán-García, María Ángeles; [et al.] (2020-07-24)
      In this paper we introduce SODES (Step-wise Ordinary Differential Equations Solver) which is a new solver for Ordinary Dfferential Equations (ODE). SODES can be used not only as a solver but also as a tutorial for the ...
    • Queueuing system with failures and priorities 

      Atencia-McKillop, Ivan; Galán-García, José Luis; Aguilera-Venegas, Gabriel; Rodríguez, Pedro; Galán-García, María Ángeles (2016-07-07)
      Queueing theory provides models, structural insights, problem solutions and algorithms to many application areas. Due to its practical applicability to production, manufacturing, home automation, communications ...