Reducing gaps in quantitative association rules: A genetic programming free-parameter algorithm

The extraction of useful information for decision making is a challenge in many different domains. Association rule mining is one of the most important techniques in this field, discovering relationships of interest among patterns. Despite the mining of association rules being an area of great interest for many researchers, the search for well-grouped continuous values is still a challenge, discovering rules that do not comprise patterns which represent unnecessary ranges of values. Existing algorithms for mining association rules in continuous domains are mainly based on a non-deterministic search, requiring a high number of parameters to be optimised. These parameters hinder the mining process, and the algorithms themselves must be known to those data mining experts that want to use them. We therefore present a grammar guided genetic programming algorithm that does not require as many parameters as other existing approaches and enables the discovery of quantitative association rules comprising small-size gaps. The algorithm is verified over a varied set of data, comparing the results to other association rule mining algorithms from several paradigms. Additionally, some resulting rules from different paradigms are analysed, demonstrating the effectiveness of our model for reducing gaps in numerical features

La interiorización de valores y la convivencia escolar.

This research deals with the theme: the internalization of values and school coexistence, this research project seeks to find relevant information about the problem: The deficient practice of values affect school coexistence whose general objective is to diagnose the internalization of values and coexistence school, through the application of different strategies, workshops and talks that originate good social and behavioral relationships among students of the 5th grader students at Unidad Educativa "Mariscal Antonio José de Sucre". For this purpose, a scientific, analytical and statistical research methodology was used to gather valuable information from various bibliographical sources to support the problem, instruments and techniques were also used to collect information and prepare statistical data to analyze the need and feasibility of the proposal. Bearing in mind the need to strengthen values as fundamental axes for good school coexistence, since currently the values are disappearing and there is no normal development in the formation of the human being. Consequently, some issues appear within the social context being one of the main fundamental demands that the human being has, which will serve as an ideal support in the normal development of people and their relationship with others. Taking into account that the values educate open-minded people focused on fulfilling with and enforcing norms that establish a normal development of people, as a reference the behavioral model is taken which focuses on the behavior modification during childhood and adolescence, placing values as fundamental pillars in the formation of the human being, enhancing good behaviors that will be put into practice throughout their training as integrated people able to relate to their peers solving problems that arise in this new society.La presente investigación aborda el tema: la interiorización de valores y la convivencia escolar, este proyecto de investigación trata de buscar información relevante acerca del problema: La deficiente práctica de valores afectan la convivencia escolar cuyo objetivo general es Diagnosticar la interiorización de valores y la convivencia escolar, mediante la aplicación de diferentes estrategias, talleres y charlas que originen buenas relaciones sociales y comportamentales entre estudiantes del 5° año de Educación Básica de la Unidad Educativa “Mariscal Antonio José de Sucre”. Para lo cual se utilizó una metodología de investigación científica, analítica y estadística que permitió recabar información valiosa de diversas fuentes bibliográficas para la sustentación del problema planteado, también se utilizaron instrumentos y técnicas para la recolección de información y elaboración de datos estadísticos que permitió analizar la necesidad y factibilidad de la propuesta. Teniendo en cuenta la necesidad de fortalecer los valores como ejes fundamentales para la buena convivencia escolar, puesto que en la actualidad los valores están desapareciendo y no hay un normal desenvolvimiento en la formación del ser humano, esto trae conflictos dentro del contexto social siendo una de las principales exigencias primordiales que tiene el ser humano, mismas que servirán como apoyo idóneo en el normal desarrollo de las personas y su relación con los demás. Tomando en cuenta que los valores son formadores de personas con una mentalidad abierta enfocada a cumplir y hacer cumplir normas que establezcan un normal desarrollo de los individuos, como referencia se toma el modelo conductual el cual se enfoca a la modificación del comportamiento durante la infancia y la adolescencia, ubicando a los valores como pilares fundamentales en la formación del ser humano, adoptando de esta manera comportamientos adecuados que serán puestos en práctica a lo largo de su formación como personas integras capaces de relacionarse con sus semejantes solucionando problemas que se presentan en esta nueva sociedad.Universidad Técnica de Cotopax

Evolutionary composition of QoS-aware web services: a many-objective perspective

Web service based applications often invoke services provided by third-parties in their workflow. The Quality of Service (QoS) provided by the invoked supplier can be expressed in terms of the Service Level Agreement specifying the values contracted for particular aspects like cost or throughput, among others. In this scenario, intelligent systems can support the engineer to scrutinise the service market in order to select those candidates that best fit with the expected composition focusing on different QoS aspects. This search problem, also known as QoS-aware web service composition, is characterised by the presence of many diverse QoS properties to be simultaneously optimised from a multi-objective perspective. Nevertheless, as the number of QoS properties considered during the design phase increases and a larger number of decision factors come into play, it becomes more difficult to find the most suitable candidate solutions, so more sophisticated techniques are required to explore and return diverse, competitive alternatives. With this aim, this paper explores the suitability of many-objective evolutionary algorithms for addressing the binding problem of web services on the basis of a real-world benchmark with 9 QoS properties. A complete comparative study demonstrates that these techniques, never before applied to this problem, can achieve a better trade-off between all the QoS properties, or even promote specific QoS properties while keeping high values for the rest. In addition, this search process can be performed within a reasonable computational cost, enabling its adoption by intelligent and decision-support systems in the field of service oriented computation.Junta de Andalucía P12-TIC-1867Ministerio de Economía y Competitividad TIN2012-32273Junta de Andalucía TIC-5906Ministerio de Economía y Competitividad TIN2014-55252-PMinisterio de Economía y Competitividad TIN2015- 71841-REDTMinisterio de Educación, Cultura y Deportes FPU13/0146

Draft genome sequence of Cupriavidus UYMMa02A, a novel beta-rhizobium species

We present the draft genome of Cupriavidus UYMMa02A, a rhizobium strain isolated from root nodules of Mimosa magentea. The assembly has approximately 8.1 million bp with an average G+C of 64.1%. Symbiotic and metal-resistance genes were identified. The study of this genome will contribute to the understanding of rhizobial evolution

Frecuencia de virus respiratorios detectados por inmunofluorescencia directa en pacientes del hospital Manuel de Jesús Rivera “La Mascota” en el año 2017

El objetivo de este estudio fue determinar la frecuencia de los virus respiratorios detectados por inmunofluorescencia directa en pacientes menores de 5 años en el hospital Manuel de Jesús Rivera “La Mascota” en el año 2017, de esta manera conocer su comportamiento y aportar información relevante para su posterior control epidemiológico. Durante este estudio se analizaron 1465 casos sospechosos de infecciones por virus respiratorios en menores de cinco años que fueron analizados en el año 2017, de los cuales de identificaron 430 casos positivos (29%), las muestras fueron procesadas por medio de la técnica de inmunofluorescencia directa en pacientes internados en el hospital, en total se recopilo la información de 33 casos de pacientes (7.6%) entre 4 y 5 años de edad, 91 pacientes (21.2%) entre 2 a 3 años y 306 pacientes (71.2%) de 0 a 1 año, la información fue provista por el hospital y tomada de las bases de datos del programa de vigilancia epidemiológica. Se identificó que el patógeno con mayor frecuencia fue Virus Sincitial Respiratorio el cual se presentó con un total de 241 casos (56%); el segundo con mayor presencia fue Parainfluenza 3 con 61 casos (14%); y luego se identificó Influenza B con 37 casos (9%). Los acontecimientos de estos casos se mantiene constante durante los meses de verano antes de incrementar drásticamente en los últimos meses de invierno afectando principalmente a los pacientes menores de 1 año que representan un 71% de los casos totales con 306 pacientes. Es necesario que la vigilancia de estos virus continúe para así conocer su comportamiento y plantear un plan de acción para la reducción de estas infeccione

Navigation strategy for the NAO robotic platform using landsmarks through recognition of gometric figures

El presente documento muestra el desarrollo de la estrategia de navegación para el manejo de la plataforma robótica NAO, mostrando el paso a paso y los resultados obtenidos. Se muestra el desarrollo del algoritmo para la detección de los landsmark, que son tres figuras geométricas básicas de color azul, así como el proceso de integración con la plataforma robótica NAO y el desarrollo de la toma de decisiones por parte del robot para ejecutar un movimiento de acuerdo a la figura detectada. Finalmente, se realiza un análisis de tiempos de las figuras detectadas y su procesamiento, y se muestran los resultados obtenidos.The current document shows a development of the strategy of navigation for the management of the robotic platform NAO, showing the step by step and the corresponding results. Shows the development of the algorithm to the detection of landsmarks, which are the geometrical figures of color blue, as the integration process with the robotic platform NAO and the development of the decision making to the robot to execute a movement according to the figure detected. Finally, realize analysis of the times of the detected figures and their processing, and shows the obtained results

Co-simulation platform for geometric design, trajectory control and guidance of racing drones

[EN] The design of racing drones brings quite a thrilling challenge from a flight dynamics point of view. This work aims to offer a single-based simulation platform combining its geometric design, trajectory control, and guidance of racing drones. Also, it is reckoned from a pilot¿s view in a classic FPV competition. Hence, it is an active platform for studying racing drones¿ design founded on dynamics, with fifteen different drone models. It is one of the few existing platforms that combine all aspects of racing drones in a single simulation environment. Also, it is open access via Matlab Central - File Exchange.This work was partially supported by proyect PID2020-119468RA-I00 funded by MCIN/AEI/10.13039/501100011033.Castiblanco Quintero, J.; Garcia-Nieto, S.; Simarro Fernández, R.; Salcedo-Romero-De-Ávila, J. (2022). Co-simulation platform for geometric design, trajectory control and guidance of racing drones. International Journal of Micro Air Vehicles. 14:1-20. https://doi.org/10.1177/175682932211437851201

Experimental study on the dynamic behaviour of drones designed for racing competitions

[EN] Drones designed for racing usually feature powerful miniaturised electronics embedded in fairly light and strong geometric composite structures. The main objective of this article is to analyse the behaviour of various models of racing drones and their geometrical structures (airframes). Two approaches have been made: (i) an analysis of the information collected by a set of speed and time sensors located on an indoor race track and using a statistical technique (box and whiskers diagram) and (ii) an analysis of the know-how (flight sensations) of a group of racing pilots using a series of technical interviews on the behaviour of their drones. By contrasting these approaches, it has been possible to validate numerically the effects of varying the arm angles, as well as lengths, on a test race track and relate the geometry of these structures to racing behaviourThe author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was partially supported by project RTI2018-096904-B-I00 from the Spanish Ministry of Economy, and by project AICO/2019/055 from Generalitat Valenciana.Castiblanco Quintero, JM.; Garcia-Nieto, S.; Simarro Fernández, R.; Salcedo-Romero-De-Ávila, J. (2021). Experimental study on the dynamic behaviour of drones designed for racing competitions. International Journal of Micro Air Vehicles. 13:1-22. https://doi.org/10.1177/175682932110057571221