Detecting Functional Requirements Inconsistencies within Multi-teams Projects Framed into a Model-based Web Methodology

One of the most essential processes within the software project life cycle is the REP (Requirements Engineering Process) because it allows specifying the software product requirements. This specification should be as consistent as possible because it allows estimating in a suitable manner the effort required to obtain the final product. REP is complex in itself, but this complexity is greatly increased in big, distributed and heterogeneous projects with multiple analyst teams and high integration between functional modules. This paper presents an approach for the systematic conciliation of functional requirements in big projects dealing with a web model-based approach and how this approach may be implemented in the context of the NDT (Navigational Development Techniques): a web methodology. This paper also describes the empirical evaluation in the CALIPSOneo project by analyzing the improvements obtained with our approach.Ministerio de Economía y Competitividad TIN2013-46928-C3-3-RMinisterio de Economía y Competitividad TIN2015-71938-RED

Colección de prácticas de tratamiento digital de audio para telecomunicaciones

Grado en Ingeniería de Sistemas Audiovisuales. Asignatura: Tratamiento digital de audio para Telecomunicacione

A Rate Control Algorthm for Low-Delay H.264 Video Coding with Stored-B Pictures

A rate control (RC) algorithm for H.264 video coding with stored-B (SB) pictures is proposed for low-delay applications. Different models for P and SB pictures are defined for a better QP and MAD estimation. Furthermore, a novel saw-tooth shaped model of target buffer level has also been introduced for a proper bit allocation in GOP structures with SB pictures. Our experimental results show that this proposal outperforms the reference software RC in terms of buffer occupancy and target bit rate adjustment at the expense of slight quality reduction.Publicad

Entity Identification Problem in Big and Open Data

Big and Open Data provide great opportunities to businesses to enhance their competitive advantages if utilized properly. However, during past few years’ research in Big and Open Data process, we have encountered big challenge in entity identification reconciliation, when trying to establish accurate relationships between entities from different data sources. In this paper, we present our innovative Intelligent Reconciliation Platform and Virtual Graphs solution that addresses this issue. With this solution, we are able to efficiently extract Big and Open Data from heterogeneous source, and integrate them into a common analysable format. Further enhanced with the Virtual Graphs technology, entity identification reconciliation is processed dynamically to produce more accurate result at system runtime. Moreover, we believe that our technology can be applied to a wide diversity of entity identification problems in several domains, e.g., e- Health, cultural heritage, and company identities in financial world.Ministerio de Ciencia e Innovación TIN2013-46928-C3-3-

An Extension of NDT to Model Entity Reconciliation Problems

Within the development of software systems, the development of web applications may be one of the most widespread at present due to the great number of advantages they provide such as: multiplatform, speed of access or the not requiring extremely powerful hardware among others. The fact that so many web applications are being developed, makes grotesque the volume of information that it is generated daily. In the management of all this information, it appears the entity reconciliation problem, which is to identify objects referring to the same real-world entity. This paper proposes to give a solution to this problem through a web perspective. To this end, the NDT methodology has been taken as a reference and has been extended adding new activities, artefacts and documents to cover this problem.Ministerio de Economía y Competitividad TIN2013-46928-C3-3-RMinisterio de Economía y Competitividad TIN2016-76956-C3-2-RMinisterio de Economía y Competitividad TIN2015-71938-RED

Adaptive Multi-Pattern Fast Block-Matching Algorithm Based on Motion Classification Techniques

Motion estimation is the most time-consuming subsystem in a video codec. Thus, more efficient methods of motion estimation should be investigated. Real video sequences usually exhibit a wide-range of motion content as well as different degrees of detail, which become particularly difficult to manage by typical block-matching algorithms. Recent developments in the area of motion estimation have focused on the adaptation to video contents. Adaptive thresholds and multi-pattern search algorithms have shown to achieve good performance when they success to adjust to motion characteristics. This paper proposes an adaptive algorithm, called MCS, that makes use of an especially tailored classifier that detects some motion cues and chooses the search pattern that best fits to them. Specifically, a hierarchical structure of binary linear classifiers is proposed. Our experimental results show that MCS notably reduces the computational cost with respect to an state-of-the-art method while maintaining the qualityPublicad

Diagnóstico de la evaluación formativa en la disciplina Teoría y Práctica de la Educación Física

In the Cuban university context new transformations are demanded in the evaluation of the learning in their formative character. For what is pertinent the diagnosis of potentialities and necessities. The article that is presented, had the purpose of showing the results of the formative evaluation in the discipline Theory and Practice of the Physical Education. The application of methods like the observation, surveys and the analysis of documents, they demonstrated the presence of a system of incongruous evaluation to transform the modes of the professor’s and student’s performance; chord to the demands of the pattern of the professional of the Physical Culture.En el contexto universitario cubano se exigen nuevas transformaciones en la evaluación del aprendizaje en su carácter formativo. Por lo que resulta pertinente el diagnóstico de potencialidades y necesidades. El artículo que se presenta, tiene el propósito de mostrar los resultados de la evaluación formativa en la disciplina Teoría y Práctica de la Educación Física. La aplicación de métodos como la observación, encuestas y el análisis de documentos, demostraron la presencia de un sistema de evaluación incongruente para transformar los modos de actuación del profesor y el estudiante; acorde a las exigencias del modelo del profesional de la Cultura Física

Infestación por Aedes aegypti, estratificación del riesgo y factores ambientales concomitantes. Yara, 2020-2022 (Original)

The Aedes aegypti is the vector of various viral diseases, including dengue, zika and chikungunya, causing endemic-epidemic cycles in the areas where it lives. The Yarense territory has a geographical location that places it in the middle of the two municipalities (Bayamo and Manzanillo) of the Granma province with the highest infestation rates. In the year 2022, the largest historical record of the problem has been obtained, while dengue cases (278) concomitant, corresponding to the increase in incidence rates in the country, disseminated by populations and the flow of transport from areas populated by the culicid In this context, the study aims to describe the characteristics of the infestation, identify the environmental risks that pre-existed in the infested areas, and stratify the entomoepidemiological risk. For which, an observational study is carried out, in the period 2020-2022. The universe covers the 6,781 dwellings of the urban cycle and the 6,510 of the rural that comprise the area under study, and the sample is made up of the 97 positive places for the mosquito. . The study allows to know the particularities of the problem, by facilitating the design of strategies to reduce the proliferation of the species, from the unveiling of its instinctive action and adaptability in the innate effort to perpetuate the species; as well as lowering the costs since the forces would be concentrated in eliminating the risks that mark the reproduction of the insect from its earliest phases.El Aedes aegypti es el vector de varias enfermedades virales, entre ellas el dengue, zika y chikungunya, provocando ciclos endémico-epidémicos en las zonas donde habita. El territorio yarense tiene una ubicación geográfica que lo sitúa en medio de los dos municipios (Bayamo y Manzanillo) de la provincia Granma con los mayores índices de infestación. En el año 2022 se ha obtenido el mayor registro histórico del problema, al tiempo que concomitan casos de dengue (278) correspondidos con el aumento de las tasas de incidencia en el país, diseminada por las poblaciones y el flujo de transporte desde áreas pobladas por el culícido. En este contexto, el estudio tiene como objetivo describir las características de la infestación, identificar los riesgos ambientales que preexistieron en las áreas infestadas y estratificar el riesgo entomoepidemiológico. Para lo cual, se realiza un estudio observacional, en el periodo 2020- 2022. El universo abarca las 6 781viviendas del ciclo urbano y las 6 510 del rural que comprenden el área en estudio, y la muestra la conforman los 97 locales positivos al mosquito. El estudio permite conocer las particularidades de la problemática, al facilitar el diseño de estrategias para disminuir la proliferación de la especie, desde el develado de su actuar instintivo y adaptabilidad en el esfuerzo innato por perpetuar la especie; así como, abaratar los costos ya que las fuerzas serían concentradas en eliminar los riesgos que marcan la reproducción del insecto desde sus fases más tempranas