Un enfoque de recuperación de información para ayudar a los usuarios en los procesos de ingeniería de software

Documents written in natural language constitute a major part of the artifacts produced during the software engineering life cycle. There is a growing interest in creating tools that can assist users in all phases of the software life cycle. The assistance requires techniques that go beyond traditional static and dynamic analysis. An example of such a technique is the application of information retrieval (IR), which exploits information found in documents of a software engineering process. The increased availability of data created as part of the software development process allows managers to apply novel analysis techniques on the data and use the results to guide the project´s stakeholders. These data are then used to predict defects, gather insight into a project´s life-cycle, and other tasks. This work proposes an IR approach to assist users in software engineering processes according their profile. The approach consists in recommending them related documents to a retrieved one in order to users understand and follow the process in a correct way. Furthermore, the assistance concentrates on legacy systems in which engineers must acquire knowledge generated by others. Implementation of the approach and an overview of evaluation are also summarized.Os documentos escritos em linguagem natural constituem uma parte importante dos artefatos produzidos durante o ciclo de vida da engenharia de software. Há um interesse crescente em criar ferramentas que possam ajudar os usuários em todas as fases do ciclo de vida do software. A assistência requer técnicas que vão além da análise tradicional estática e dinâmica. Um exemplo de tal técnica é a aplicação de recuperação de informações (RI), que explora informações encontradas em documentos de um processo de engenharia de software. A maior disponibilidade de dados criados como parte do processo de desenvolvimento de software permite que os gerentes apliquem técnicas de análise inovadoras nos dados e usem os resultados para orientar as partes interessadas do projeto. Esses dados são usados para prever defeitos, coletar informações sobre o ciclo de vida de um projeto e outras tarefas. Este trabalho propõe uma abordagem de RI para auxiliar os usuários em processos de engenharia de software de acordo com o seu perfil. A abordagem consiste em lhes recomendar os documentos relacionados para que sejam recuperados, a fim de que os usuários compreendam e sigam o processo de maneira correta. Além disso, a assistência concentra-se em sistemas legados nos quais os engenheiros devem adquirir conhecimento gerado por outros. O desenvolvimento da abordagem e uma visão geral da avaliação são apresentados.Los documentos escritos en lenguaje natural constituyen una parte fundamental de los artefactos producidos durante el ciclo de ciclo de vida del desarrollo de software. Hay un creciente interés en las herramientas de creación que pueden ayudar a los usuarios en todas las fases del ciclo de vida del software. La asistencia requiere técnicas que van más allá del análisis estático y dinámico. Por ejemplo, la aplicación de recuperación de información (RI) explota información encontrada en los documentos del proceso de desarrollo de software. La creciente disponibilidad de datos creados a partir del proceso de desarrollo de software permite a los líderes de proyectos aplicar estrategias de análisis sobre los datos como parte del proceso y utilizar los resultados para guiar a los grupos de interesados. Estos datos se utilizan para evitar defectos, recolectar información sobre el ciclo de vida de un proyecto, y otras tareas. En este trabajo se propone un enfoque de RI para asistir a los usuarios en el proceso de desarrollo de software según su perfil. El enfoque consiste en recomendar los documentos relacionados a un usuario para que éstos entiendan y sigan el proceso en una dirección correcta. Además, la asistencia está pensada en contextos de sistemas heredados en los que los desarrolladores deben adquirir el conocimiento generado por terceros. Como conclusión, se muestran la implementación del enfoque y una descripción de la evaluación.Fil: Rodríguez, Guillermo Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Instituto Superior de Ingeniería del Software. Universidad Nacional del Centro de la Provincia de Buenos Aires. Instituto Superior de Ingeniería del Software; Argentin

Machine Learning for Detection of Cognitive Impairment

The detection of cognitive problems, especially in the early stages, is critical and the method by which it is diagnosed is manual and depends on one or more specialist doctors, to diagnose it as the cognitive decline escalates into the early stage of dementia, e.g., Alzheimer's disease (AD). The early stages of AD are very similar to Mild Cognitive Impairment (MCI); it is essential to identify the possible factors associated with the disease. This research aims to demonstrate that automated models can differentiate and classify MCI and AD in the early stages. The present research used a combination of Machine Learning (ML) algorithms to identify AD, using gene expressions. The algorithms used for the classification of cognitive problems and healthy people (control) were: Linear Regression, Decision Trees (DT), Naîve Bayes (NB) and Deep Learning (DP). The result of this research shows ML algorithms can identify AD, in early stages, with an 80% accuracy, using a Deep Learning (DL) algorithm.Fil: Diaz, Valeria. Universidad de Palermo. Facultad de Ingeniería; ArgentinaFil: Rodríguez, Guillermo Horacio. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Sistemas Tandil; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Instituto Superior de Ingeniería del Software. Universidad Nacional del Centro de la Provincia de Buenos Aires. Instituto Superior de Ingeniería del Software; Argentin

Lp-operator algebras associated with oriented graphs

For each 1 ≤ p < ∞ and each countable oriented graph Q we introduce an L p -operator algebra O p (Q) which contains the Leavitt path C-algebra LQ as a dense subalgebra and is universal for those L p -representations of LQ which are spatial in the sense of N.C. Phillips. For Rn the graph with one vertex and n loops (2 ≤ n ≤ ∞), O p (Rn) = O p n , the L p -Cuntz algebra introduced by Phillips. If p < {1, 2} and S(Q) is the inverse semigroup generated by Q, O p (Q) = F p tight(S(Q)) is the tight semigroup L p -operator algebra introduced by Gardella and Lupini. We prove that O p (Q) is simple as an L p -operator algebra if and only if LQ is simple, and that in this case it is isometrically isomorphic to the closure ρ(LQ) of the image of any nonzero spatial L p -representation ρ : LQ → L(L p (X)). We also show that if LQ is purely infinite simple and p , p ′ , then there is no nonzero continuous homomorphism O p (Q) → Op ′ (Q). Our results generalize some similar results obtained by Phillips for L p -Cuntz algebras.Fil: Cortiñas, Guillermo Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Investigaciones Matemáticas "Luis A. Santaló". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Matemáticas "Luis A. Santaló"; ArgentinaFil: Rodríguez, María Eugenia. Universidad de Buenos Aires; Argentin

Measuring the Impact of Agile Coaching on Students’ Performance

Agile methods have been in the cutting-edge of software engineering as a means to improve management of software development processes. The widespread use of such methods in professional contexts has encouraged their integration into software engineering training and undergraduate courses. Although there are several research works that have focused on teaching Scrum through simulating a software development project, they have covered only the learning of practices within a Scrum team, and a few of them have tackled non-technical skills beyond the development practices. Thus, we claim that it is necessary to help students understand Scrum rules, clear project obstacles and tackle non-technical issues such as management and teamwork.Sociedad Argentina de Informática e Investigación Operativa (SADIO

From software architecture descriptions to object-oriented designs

Service-Oriented Architecture (SOA) is becoming a dominant approach for developing distributed enterprise-wide applications. One of the reasons for SOA’s extended use is its capacity to rapidly build applications by assembling alreadyimplemented and Internet-accessible services, which allows software organizations to hasten development of distributed applications and their consequent time-tomarket. However, this approach to develop SOA applications results unsuitable for particular organizations with high-priority and critical demands of internal control, security, flexibility, confidentiality and data integrity of their services, since the development of core functionality may be jeopardized by either uncertainty or changing environment. Although many efforts have focused mainly on facilitating discovering of services, and the outsourcing and reuse of them in SOA-based applications, little attention has been paid to aiding designers in developing services associated with business goals and quality-attribute properties. Moreover, quality-attribute properties of the service assemblies have been disregarded, which often leads to mismatches between the quality-attribute behavior prescribed by the SOA and the one resulting after its implementation. (Párrafo extraído del texto a modo de resumen)Sociedad Argentina de Informática e Investigación Operativa (SADIO

Measuring the Impact of Agile Coaching on Students’ Performance

Agile methods have been in the cutting-edge of software engineering as a means to improve management of software development processes. The widespread use of such methods in professional contexts has encouraged their integration into software engineering training and undergraduate courses. Although there are several research works that have focused on teaching Scrum through simulating a software development project, they have covered only the learning of practices within a Scrum team, and a few of them have tackled non-technical skills beyond the development practices. Thus, we claim that it is necessary to help students understand Scrum rules, clear project obstacles and tackle non-technical issues such as management and teamwork.Sociedad Argentina de Informática e Investigación Operativa (SADIO

From software architecture descriptions to object-oriented designs

Service-Oriented Architecture (SOA) is becoming a dominant approach for developing distributed enterprise-wide applications. One of the reasons for SOA’s extended use is its capacity to rapidly build applications by assembling alreadyimplemented and Internet-accessible services, which allows software organizations to hasten development of distributed applications and their consequent time-tomarket. However, this approach to develop SOA applications results unsuitable for particular organizations with high-priority and critical demands of internal control, security, flexibility, confidentiality and data integrity of their services, since the development of core functionality may be jeopardized by either uncertainty or changing environment. Although many efforts have focused mainly on facilitating discovering of services, and the outsourcing and reuse of them in SOA-based applications, little attention has been paid to aiding designers in developing services associated with business goals and quality-attribute properties. Moreover, quality-attribute properties of the service assemblies have been disregarded, which often leads to mismatches between the quality-attribute behavior prescribed by the SOA and the one resulting after its implementation. (Párrafo extraído del texto a modo de resumen)Sociedad Argentina de Informática e Investigación Operativa (SADIO

Nivel de aprendizaje en educación religiosa y compromiso cristiano en estudiantes del nivel secundaria de una institución educativa de Otuzco

El trabajo de investigación tiene como objetivo general determinar la relación existente entre nivel de aprendizaje en educación religiosa y compromiso cristiano en estudiantes del nivel secundaria de una institución educativa de Otuzco; para el cual se ha empleado el diseño descriptivo: correlacional, con una población de 180 y una muestra de 60 estudiantes en secundaria de una institución educativa de Otuzco, aplicando el tipo de muestreo no probabilístico, a criterio del investigador. Como instrumentos de recojo de datos, se aplicó dos cuestionarios los que han sido validados a juicio de experto y a través del software SPSS número 25, el programa Excel 2010 arrojando una confiabilidad del alfa de Cronbach de 0,889 en la variable nivel de aprendizaje en educación religiosa y de 0,872 en la variable compromiso cristiano. La investigación determina que el coeficiente de correlación es muy bajo entre el nivel de aprendizaje en educación religiosa y compromiso cristiano de los estudiantes de una institución educativa de Otuzco, siendo que la Rho de Spearman es de 0.014. con un nivel de significancia p>0,05; asimismo, cada variable presenta un porcentaje alto de aceptación:93% en educación religiosa y en compromiso cristiano 84%, resultados obtenidos a través de la medida estadística de la baremación y procesamiento en excel 2010.Tesi

Educación religiosa y formación integral de los estudiantes del nivel secundaria de la institución educativa “Simón Bolívar”, Otuzco - 2017

El presente trabajo de investigación tiene como objetivo general Determinar la relación existente entre Educación Religiosa y Formación Integral de los Estudiantes de la Institución Educativa “Simón Bolívar”, Otuzco - 2017 En nuestra investigación, se empleó el diseño descriptivo: correlacional, teniendo una población de 283 estudiantes, correspondiente a los grados de tercero, cuarto y quinto de secundaria de la institución Educativa “Simón Bolívar” de Otuzco, cuya muestra seleccionada fue de 84 estudiantes, aplicando el tipo de muestreo no probabilístico, a criterio del investigador y para poder determinar la correlación existente entre ambas variables de estudio. Como instrumentos de recojo de datos, se aplicó dos cuestionarios los cuales han sido validados a juicio de experto y a través del software SPSS N° 25 el programa de Excel 2010 arrojando una confiabilidad del alfa de Cronbach en 0,853 en la variable educación religiosa y de 0,852 en la variable formación integral. La investigación determina la relación existente entre Educación Religiosa y Formación Integral de los Estudiantes de la Institución Educativa “Simón Bolívar” de Otuzco, con un porcentaje (95%) en educación religiosa y en la formación integral del estudiante (93%), resultados obtenidos a través de la medida estadística: Chi cuadrada y la Rho de Spearman con un resultado general en el coeficiente de correlación de 0.675

Development of a Competitive Enzyme Immunoassay Technique for the Detection of Soy Traces in Meat Products

The aim of this work was to develop a competitive enzyme immunoassay technique, to detect the presence of traces of soy in meat products. Specific rabbit polyclonal antiserum against soy protein was used as primary antibody. The optimal antigen concentration to be immobilized on the plate and the concentration of primary antibody to be used in competition was determined. The calibration curve was fitted using increasing concentrations of an extract of soy product. The soy product was extracted with Tris-HCl buffer 0.0625M with 3% sodium dodecylsulfate and 2% mercaptoethanol. The working range used in the enzyme immunoassay to detect soy was 9-280ppm SP with adequate linearity (R2: 0.9880). All validation parameters studied were appropriate. Commercial samples of meat products were analyzed with this enzyme immunoassays and a commercial ELISA kit. Significant differences were observed in the quantitative results obtained with both methods; nevertheless the developed enzyme immunoassay could be used as screening method.Facultad de Ciencias ExactasInstituto de Estudios Inmunológicos y Fisiopatológico