Ginestar Peiro, Concepción de María

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Departamento de Estadística e Investigación Operativa Aplicadas y Calidad

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Programación lineal: algoritmo del simplex con variables acotadas inferiormente
(Universitat Politècnica de València, 2018-02-19T08:17:14Z) Ginestar Peiro, Concepción de María; Departamento de Estadística e Investigación Operativa Aplicadas y Calidad
Caso práctico sobre el Algoritmo del Simplex con variables acotadas inferiormente para resolver modelos de programación lineal, utilizando un problema de planificación de la producción. Se utiliza el ejemplo para explicar los conceptos de coste de oportunidad y coste reducido.
Optimization Models to Improve Estimations and Reduce Nitrogen Excretion from Livestock Production
(MDPI AG, 2018) Segura, Marina; Maroto Álvarez, María Concepción; Ginestar Peiro, Concepción de María; Segura García Del Río, Baldomero; Facultad de Administración y Dirección de Empresas; Departamento de Estadística e Investigación Operativa Aplicadas y Calidad; Centro de Gestión de la Calidad y del Cambio; Generalitat Valenciana
[EN] Sustainable food production plays a key role at different levels, such as countries, producers and consumers worldwide. Commitments of countries to reducing environmental impact include livestock production due to its contribution to greenhouse gases and other pollutants. The purpose of this research is to design and validate optimization models to improve assessments of emissions from livestock. As feed consumed is the principal source of the emissions, we have developed an aggregated optimization model to assess feed intake and therefore emissions at country level, by using the best technical and statistical data. This model provides a common framework to assess livestock emissions for all countries and in particular in the European Union. The model has been validated in the Spanish intensive pig sector, which is the principal producer by head count of the European Union. Results from several scenarios, which differ in animal protein and energy needs, have been compared to those from other methodologies and the Spanish National Inventory System, which assesses greenhouse gases and pollutants annually. This model can be adapted to other species, and applied to other countries and at farm level. Finally, this model is a useful tool to evaluate the effects on the emissions related to changes in animal nutrition, price and supply of raw materials, as well as agricultural and environmental policies.
Preferencias y rendimiento de los alumnos en el aprendizaje de Investigación Operativa con videos
(Editorial Universitat Politècnica de València, 2018-09-26) Segura Maroto, Marina; Maroto Álvarez, María Concepción; Ginestar Peiro, Concepción de María; Navarro Cerdán, José Ramón; Instituto Universitario Mixto de Tecnología de Informática; Facultad de Administración y Dirección de Empresas; Departamento de Estadística e Investigación Operativa Aplicadas y Calidad; Centro de Gestión de la Calidad y del Cambio; Escuela Técnica Superior de Ingeniería Informática
[EN] The increasing supply of videos as an online resource has changed the performance of students who study degrees based on face-to-face learning. The objectives of this paper are to elicit current preferences for different types of learning resources, especially videos, developed to teach Operations Research in Business Administration and Management degree, as well as analysing the relation between the videos use and students’ performance. The methodology is based on a survey using the Likert scale and the multicriteria method AHP. While all available resources are used to learn the subject, the results show a predominant preference for exam answers and videos, although more than one third of the students also use books and slides. Detailed exam answers improve learning and decrease tutorial appointments. There are significant differences in the use of learning resources among groups and resources affect students’ behaviour and performance. The videos with teaching modules decrease face-to-face class attendance, while the videos with interactive case studies affect performance positively. Therefore, we think that moving forward in this line would improve effective learning.
Modelo de programación multiobjetivo
(Universitat Politècnica de València, 2018-03-01T07:15:22Z) Ginestar Peiro, Concepción de María; Departamento de Estadística e Investigación Operativa Aplicadas y Calidad
Caso práctico de aplicación de técnicas multicriterio, en concreto el método de las jerarquías analíticas mediante la construcción de jerarquías y establecimiento de prioridades para la ayuda para la toma de decisiones. Se introduce el término Indice de inconsistencia de las matrices utilizada.
Preferencias en el aprendizaje de Investigación Operativa: Docencia inversa y presencial
(Editorial Universitat Politècnica de València, 2017-07-18) Bas, María Del Carmen; Segura Maroto, Marina; Ginestar Peiro, Concepción de María; Maroto Álvarez, María Concepción; Facultad de Administración y Dirección de Empresas; Departamento de Estadística e Investigación Operativa Aplicadas y Calidad; Centro de Gestión de la Calidad y del Cambio
[EN] The use of online resources for learning is increasing in business higher education, not only in the flipped classroom approach but also in order to supplement face-to-face lectures. The objectives of this paper are eliciting students’ preferences and assessing the learning resources (books, slides and videos) in teaching the Operations Research in Business Administration and Management degree. The students’ preferences have been obtained using Analytic Hierarchy Process, a quantitative method, appropriate for eliciting and aggregating individual preferences to provide information from a group of people. In addition, the use and assessment of the teaching resources have been analysed using the Likert scale, a qualitative method frequently used in higher education studies. The students who prefer videos the most are those from flipped classroom, although the videos have also affected students from traditional face-to-face teaching. In general, the slides, which synthesize and outline the concepts being studied, represent the resources more used by students of face-to-face groups. Nevertheless, there are significant differences amongst the students’ preferences by group. Finally, the videos also contribute to students skills, mainly in autonomous learning. The results and the students’ suggestions encourage the teachers to continue developing additional videos with case studies and real applications.
Sustainable Forest Management in a Mediterranean region: Social preferences
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2013) Maroto Álvarez, María Concepción; Segura Maroto, Marina; Ginestar Peiro, Concepción de María; Uriol Batuecas, Juan; Segura García del Río, Baldomero; Facultad de Administración y Dirección de Empresas; Departamento de Estadística e Investigación Operativa Aplicadas y Calidad; Centro de Gestión de la Calidad y del Cambio; Ministerio de Ciencia e Innovación
[EN] Aim of study: There is a lack of empirical research that deals with sustainable forest management in Mediterranean regions, among the most vulnerable ecosystems. The main purpose of this work is to define the strategic criteria and objectives for sustainable forest management and aggregate the preferences of stakeholders in a Mediterranean region, using AHP and Goal Programming. Area of study: Valencian Community (Spain). Material and Methods: Firstly, we identified forest stakeholders and structured a decision hierarchy. Then a workshop was carried out to test and validate the proposed criteria and objectives, as well as a survey to determine social preferences. Secondly, another survey was conducted amongst experts to prioritize action plans. Main results: Stakeholders preferences gave the greatest importance to the environmental criteria (hydrological regulation and erosion, climate change mitigation and biodiversity) with an average weight of 40%. Social criteria (employment, recreational activities and landscape) had a weight of 38% and 22% the economic criteria case (wood, hunting and fishing, livestock, renewable energies, rural tourism and mining). The results showed that new products and services such as tourism, renewable energies, landscape, hydrological regulation and erosion control, biodiversity or climate change mitigation are very relevant objectives. We also prioritized action plans comparing them with the distribution of the administration budget. Research highlights: The environmental and social criteria are much more important than the economic ones in the regional planning of the Mediterranean forest, regardless of the method used to aggregate the social preferences and if the forest is public or private.
A new collaborative methodology for assessment and management of ecosystem services
(MDPI, 2015) Segura Maroto, Marina; Maroto Álvarez, María Concepción; Belton, Valerie; Ginestar Peiro, Concepción de María; Facultad de Administración y Dirección de Empresas; Departamento de Estadística e Investigación Operativa Aplicadas y Calidad; Centro de Gestión de la Calidad y del Cambio; Ministerio de Ciencia e Innovación
Collaborative management is a new framework to help implement programmes in protected areas. Within this context, the aim of this work is twofold. First, to propose a robust methodology to implement collaborative management focused on ecosystem services. Second, to develop indicators for the main functions of ecosystem services. Decision makers, technical staff and other stakeholders are included in the process from the beginning, by identifying ecosystem services and eliciting preferences using the AHP method. Qualitative and quantitative data are then integrated into a PROMETHEE based method in order to obtain indicators for provisioning, maintenance and direct to citizens services. This methodology, which has been applied in a forest area, provides a tool for exploiting available technical and social data in a continuous process, as well as providing easy to understand graphical results. This approach also overcomes the difficulties found in prioritizing management objectives in a multiple criteria context with limited resources and facilitates consensus between all of the people involved. The new indicators define an innovative approach to assessing the ecosystem services from the supply perspective and provide basic information to help establish payment systems for environmental services and compensation for natural disasters.
OPERATIONS RESEARCH IN BUSINESS ADMINISTRATION AND MANAGEMENT
(Editorial Universitat Politècnica de València, 2022-05-19) Maroto Álvarez, María Concepción; Alcaraz Soria, Javier; Ginestar Peiro, Concepción de María; Segura Maroto, Marina; Facultad de Administración y Dirección de Empresas; Departamento de Estadística e Investigación Operativa Aplicadas y Calidad; Centro de Gestión de la Calidad y del Cambio
Operations Research, Management Science or Business Analytics is a technology that helps improve business decision making. This book is focused on linear, integer, nonlinear and multiobjective programming, as well as multiple criteria decision making and metaheuristics (genetic algorithms). Excel Solver, LINGO, Expert Choice and D-Sight are the software used to solve decision making problems.
Evaluación interactiva del aprendizaje de Investigación Operativa basada en juegos mediante la plataforma Kahoot!
(Editorial Universitat Politècnica de València, 2019-09-30) Segura Maroto, Marina; Maroto Álvarez, María Concepción; Ginestar Peiro, Concepción de María; Navarro Cerdán, José Ramón; Martón Lluch, Isabel; Instituto Universitario Mixto de Tecnología de Informática; Facultad de Administración y Dirección de Empresas; Departamento de Estadística e Investigación Operativa Aplicadas y Calidad; Escuela Técnica Superior de Ingeniería Industrial; Centro de Gestión de la Calidad y del Cambio; Escuela Técnica Superior de Ingeniería Informática; Grupo de Medioambiente y Seguridad Industrial. MEDASEGI
[EN] Emerging technologies and mobile platforms allow the introduction of new teaching and learning strategies, in particular new ways to implement games in higher education. Kahoot! is a free platform, which can be used by teachers to develop games for classroom activities. Although this tool is the most used mobile app and one of the first to be used in education, there are no studies about its application in learning Operations Research. The objective of this paper is to evaluate Kahoot's capabilities for continuous assessment, as well as its contribution in improving students´ motivation, learning and performance in decision making tecniques. As positive outcomes we can highlight that the majority of students think Kahoot is a fun experience and that it is also useful when revising concepts. Moreover, Kahoot games increase student´engagement and provide immediate feedback for both teacher and student. In addition, results about student´s performance and motivation are presented.
INVESTIGACIÓN OPERATIVA EN ADMINISTRACIÓN Y DIRECCIÓN DE EMPRESAS
(Editorial Universitat Politècnica de València, 2012-07-27) Maroto Álvarez, María Concepción; Alcaraz Soria, Javier; Ginestar Peiro, Concepción de María; Segura Maroto, Marina; Facultad de Administración y Dirección de Empresas; Departamento de Estadística e Investigación Operativa Aplicadas y Calidad; Centro de Gestión de la Calidad y del Cambio
La Investigación Operativa (Operational Research, Management Science o Business Analytics) es una tecnología que ayuda a tomar mejores decisiones empresariales. El libro se centra en el planteamiento de problemas de administración de empresas, la formulación de modelos que los representan y su resolución mediante técnicas de optimización. En particular, se explican los conceptos y los métodos de programación lineal, entera, no lineal y multiobjetivo para la correcta interpretación de las soluciones. Éstas se obtienen con Solver de la hoja de cálculo Excel y el software de optimización profesional LINGO. También se incluyen técnicas multicriterio discretas para toma de decisiones colaborativa mediante Expert Choice y D-Sight y un capítulo dedicado a algoritmos genéticos, como técnica metaheurística avanzada.