Spark solutions for discovering fuzzy association rules in Big Data

The research reported in this paper was partially supported the COPKIT project from the 8th Programme Framework (H2020) research and innovation programme (grant agreement No 786687) and from the BIGDATAMED projects with references B-TIC-145-UGR18 and P18-RT-2947.The high computational impact when mining fuzzy association rules grows significantly when managing very large data sets, triggering in many cases a memory overflow error and leading to the experiment failure without its conclusion. It is in these cases when the application of Big Data techniques can help to achieve the experiment completion. Therefore, in this paper several Spark algorithms are proposed to handle with massive fuzzy data and discover interesting association rules. For that, we based on a decomposition of interestingness measures in terms of α-cuts, and we experimentally demonstrate that it is sufficient to consider only 10equidistributed α-cuts in order to mine all significant fuzzy association rules. Additionally, all the proposals are compared and analysed in terms of efficiency and speed up, in several datasets, including a real dataset comprised of sensor measurements from an office building.COPKIT project from the 8th Programme Framework (H2020) research and innovation programme 786687BIGDATAMED projects B-TIC-145-UGR18 P18-RT-294

NOFACE: A new framework for irrelevant content filtering in social media according to credibility and expertise

Social networks have taken an irreplaceable role in our lives. They are used daily by millions of people to communicate and inform themselves. This success has also led to a lot of irrelevant content and even misinformation on social media. In this paper, we propose a user-centred framework to reduce the amount of irrelevant content in social networks to support further stages of data mining processes. The system also helps in the reduction of misinformation in social networks, since it selects credible and reputable users. The system is based on the belief that if a user is credible then their content will be credible. Our proposal uses word embeddings in a first stage, to create a set of interesting users according to their expertise. After that, in a later stage, it employs social network metrics to further narrow down the relevant users according to their credibility in the network. To validate the framework, it has been tested with two real Big Data problems on Twitter. One related to COVID-19 tweets and the other to last United States elections on 3rd November. Both are problems in which finding relevant content may be difficult due to the large amount of data published during the last years. The proposed framework, called NOFACE, reduces the number of irrelevant users posting about the topic, taking only those that have a higher credibility, and thus giving interesting information about the selected topic. This entails a reduction of irrelevant information, mitigating therefore the presence of misinformation on a posterior data mining method application, improving the obtained results, as it is illustrated in the mentioned two topics using clustering, association rules and LDA techniques.European Commission 786687Andalusian government FEDER operative program P18-RT-2947 B-TIC-145-UGR18University of Granada's internal plan PPJIB2021-04Spanish Government FPU18/0015

New Spark solutions for distributed frequent itemset and association rule mining algorithms

Funding for open access publishing: Universidad de Gran- ada/CBUA. The research reported in this paper was partially sup- ported by the BIGDATAMED project, which has received funding from the Andalusian Government (Junta de Andalucı ́a) under grant agreement No P18-RT-1765, by Grants PID2021-123960OB-I00 and Grant TED2021-129402B-C21 funded by Ministerio de Ciencia e Innovacio ́n and, by ERDF A way of making Europe and by the European Union NextGenerationEU. In addition, this work has been partially supported by the Ministry of Universities through the EU- funded Margarita Salas programme NextGenerationEU. Funding for open access charge: Universidad de Granada/CBUAThe large amount of data generated every day makes necessary the re-implementation of new methods capable of handle with massive data efficiently. This is the case of Association Rules, an unsupervised data mining tool capable of extracting information in the form of IF-THEN patterns. Although several methods have been proposed for the extraction of frequent itemsets (previous phase before mining association rules) in very large databases, the high computational cost and lack of memory remains a major problem to be solved when processing large data. Therefore, the aim of this paper is three fold: (1) to review existent algorithms for frequent itemset and association rule mining, (2)to develop new efficient frequent itemset Big Data algorithms using distributive computation, as well as a new association rule mining algorithm in Spark, and (3) to compare the proposed algorithms with the existent proposals varying the number of transactions and the number of items. To this purpose, we have used the Spark platform which has been demonstrated to outperform existing distributive algorithmic implementations.Universidad de Granada/CBUAJunta de Andalucia P18-RT-1765Ministry of Science and Innovation, Spain (MICINN) Instituto de Salud Carlos III Spanish Government PID2021-123960OB-I00, TED2021-129402B-C21ERDF A way of making EuropeEuropean Union NextGenerationEUMinistry of Universities through the E

Innovation and communication technologies + Problem based learning: a new approach for teaching architecture

This article presents the results obtained during its first year of application in the educational innovation project called “New frameworks of teaching: ICT applied to problem based learning in technical bachelors” (PIE 15-166) developed at the School of Architecture in the University of Malaga. This has been focused on the development of educational strategies based on exploiting the potential of ICT, taking as a framework the ABP. Its application on subjects from different areas of knowledge (architectural composition, urban planning, projects and architectural constructions) has allowed assessing the adaptability of this methodology depending on the content. Among the obtained results can be highlighted the improvement in cross curricular coordination between subjects from different fields of studies, providing different ways of synchronous and asynchronous communication between students and teachers to generate a greater interaction between all the involved subjects; increasing in addition the interest and an improvement of the results.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

Nuevos avances en el conocimiento sobre el urbanismo de Colonia Patricia Corduba en el sector ocupado por el templo romano

We present the results of an excavation undertaked in 1995 in the plot located of tlie María Cristina's street, behind the roman temple of the Claudio Marcelo's street. This archaeological research has confirmed the existence of a kar-do of the roman city in agreement with the María Cristina's street and also has provided the remains of a sewer with the same type as recently recognized with the kardo ntaxirnus.Presentamos los resultados de la excavación arqueológica realizada en 1995 en el solar de la calle María Cristina, situado a espaldas del templo romano de la calle Claudio Marcelo. Esta intervención ha confirmado la existencia de un kardo de la ciudad romana coincidente con la actual calle María Cristina y ha propiciado el descubrimiento de una cloaca de similares características a la recientemente identificada con el kardo rna,uinzus

Annual evolution of the number of hotel squares offered in the city of Seville. An empirical analysis with support econometric

Con el correspondiente “pico” en 1992, por razones obvias, y unproceso suavemente creciente en la última década,se analiza la evolución histórica del número de plazas hoteleras ofertadas por la ciudad de Sevilla en hoteles de tres, cuatro y cinco estrellas, en el periodo comprendido entre 1988 y 2011. En primer lugar, los análisis gráficos son bastante elocuentes de la evolución delas series y del cambio estructural que se produce en 1992. Modelos de regresión, tanto en escala de nivel como logarítmica, corrigiendo el efecto de la autocorrelación,propio de datos longitudinales, con estimaciones de tipo Prais-Winsten o Cochrane-Orcutt, son empleados para medir el grado de influencia de algunas magnitudes macroeconómicas de nuestro país o de los países del entorno que más visitantes proporcionan a la ciudad, sobre esa evolución temporal. También, modelos autorregresivos de orden 1 y modelos con tendencia definida describen bastante bien el fenómeno estudiado

TIC+ABP: instruments for teaching innovation in Architecture

This article presents the results obtained during its first year of application in the educational innovation project called “New frameworks of teaching: ICT applied to problem based learning in technical bachelors” (PIE 15-166) developed at the School of Architecture in the University of Malaga. This has been focused on the development of educational strategies based on exploiting the potential of ICT, taking as a framework the ABP. Its application on subjects from different areas of knowledge (architectural composition, urban planning, projects and architectural constructions) has allowed assessing the adaptability of this methodology depending on the content. Among the obtained results can be highlighted the improvement in cross curricular coordination between subjects from different fields of studies, providing different ways of synchronous and asynchronous communication between students and teachers to generate a greater interaction between all the involved subjects; increasing in addition the interest and an improvement of the results.En este artículo se presentan los resultados durante el primer año de aplicación del proyecto de innovación educativa desarrollado en la ETS de Arquitectura de la Universidad de Málaga bajo el título de “Nuevos marcos de docencia: TICs aplicadas al aprendizaje basado en problemas en la enseñanza de titulaciones técnicas” (PIE 15-166). Este se ha centrado en el desarrollo de estrategias docentes basadas en el aprovechamiento del potencial de las TIC, teniendo como marco el ABP. Su aplicación sobre asignaturas enmarcadas en diferentes áreas de conocimiento (composición, urbanismo, proyectos y construcciones arquitectónicas) ha permitido valorar la adaptabilidad de esta metodología en función de los contenidos. Entre los resultados obtenidos pueden destacarse la mejora en la coordinación transversal entre distintas áreas de conocimiento y asignaturas, proporcionando medios para la comunicación síncrona y asíncrona, generando una mejora en el interés y por ende de los resultados de éxito

Phenomenological approach to sexual and reproductive health in young gypsy women

Objetivo principal: conocer la experiencia relativa en salud sexual y reproductiva en un grupo de mujeres jóvenes de etnia gitana. Metodología: estudio cualitativo con enfoque fenomenológico. Se utilizaron ocho entrevistas semiestructuradas individuales para la recolección de datos y análisis del contenido. Resultados principales: se obtuvieron tres categorías temáticas: "roles de género en el ámbito reproductivo", "hábitos y costumbres en la vida sexual" y "etapa reproductiva en embarazo, parto y puerperio". Conclusión principal: tanto los factores culturales propios de la etnia gitana como la división de roles de género influyen en el desarrollo de la etapa sexual y reproductiva de las mujeres jóvenes de etnia gitana. El conocimiento de la etapa reproductiva permite el acercamiento de los profesionales sanitarios hacia la realidad percibida de estas mujeres, para ayudarles a mantener sus hábitos, favoreciendo a la vez, una buena salud reproductiva.Objective: knowing the experience on sexual and reproductive health in a group of young Roma women. Methods: a qualitative study with phenomenological approach, using eight individual semi-structured interviews in order to collect data and carry out the analysis of the same. Results: were obtained as follows: : "Gender roles in the reproductive field", "habits and customs in the sexual life" and "reproductive stage in pregnancy, childbirth and puerperium". Conclusions: both the cultural factors of the Roma ethnic group as the division of roles gender influence development of sexual and reproductive stage of the gypsy ethnic group of young women. Knowledge of the reproductive stage of the women allows health professionals to get nearer the truth that is perceived about them in order to help them while their customs are maintained and at the same time encouraging good reproductive health

Learning Experiences of Future Healthcare Support Workers Enrolled in a Dual Mode Vocational Training Programme

With life expectancy increasing, there is a growing need to train healthcare support workers who provide care for dependent people in healthcare centres and at home. This qualitative study, based on Gadamer's hermeneutic philosophy, aimed to understand the learning experiences of future healthcare support workers currently enrolled in an intermediate, dual modality vocational training programme with regard to caring for dependent people. Methods: Convenience sampling was used to recruit the participants, who were all students enrolled in an intermediate level vocational training programme in care for dependent people. Fourteen in-depth interviews and one focus group session were conducted with the students. Atlas.ti 8.0 software was used to analyse the participants' accounts. Results: The students highlighted the vocational nature of their studies and the need to feel competent and useful as a healthcare support worker for dependent people. Practice-based learning and the need for training in core competences are complementary and essential elements of the training process. Conclusions:The participants' previous experiences were key in determining their academic trajectory and reflect their motivation and interest to learn. However, they feel vulnerable, unprotected, and lack training in psychosocial skills. Educational institutions should focus training programmes on the practice and development of psychosocial skills that motivate students to acquire transversal competencesThis work was funded by Ayudas a la Transferencia de investigación de la Universidad de Almería UALtransfierE2022. Referencia TRFE-SI-2022/009

A Critical Gap in Seagrass Protection: Impact of Anthropogenic Off-Shore Nutrient Discharges on Deep Posidonia oceanica Meadows

In the Mediterranean, anthropogenic pressures (specifically those involving nutrient loads) have been progressively moved to deeper off-shore areas to meet current policies dealing with the protection of marine biodiversity (e.g., European Directives). However, conservation efforts devoted to protecting Posidonia oceanica and other vulnerable marine habitats against anthropogenic pressures have dedicated very little attention to the deepest areas of these habitats. We studied the remote influence of off-shore nutrient discharge on the physiology and structure of deep P. oceanica meadows located nearest to an urban sewage outfall (WW; 1 km) and an aquaculture facility (FF; 2.5 km). Light reduction and elevated external nutrient availability (as indicated by high δ15N, total N and P content and N uptake rates of seagrass tissues) were consistent with physiological responses to light and nutrient stress. This was particularly evident in the sites located up to 2.5 km from the WW source, where carbon budget imbalances and structural alterations were more evident. These results provide evidence that anthropogenic nutrient inputs can surpass critical thresholds for the species, even in off-shore waters at distances within the km scale. Therefore, the critical distances between this priority habitat and nutrient discharge points have been underestimated and should be corrected to achieve a good conservation status.J.-C.J.’s PhD was funded by a grant from the University of Alicante. This research was funded by the POSINET2 project (Monitoring network of Posidonia oceanica meadow and climate change of the Murcia Region) of the Spanish Institute of Oceanography (CN IEO-CSIC), the Department of Fishery and Aquaculture of the Regional Ministry of Agriculture and Water of the Murcia Region and by the UMBRAL project (Responses of marine benthic macrophytes to stress: critical transitions, resilience and management opportunities) financed by the National Plan of Research of the Spanish Government (CTM2017-86695-C3-2-R) to R.J.M. The research was also supported by project 19-ESMARES2-ANG funded by the Ministry of Ecological Transition and Demographic Challenge of the Spanish government for the application of the Marine Strategy Framework Directive (MSFD) in Spanish waters