Volumen 6 No. especial (2015) TIC. EC: Congreso Ecuatoriano de Tecnologías de la Información y de las Comunicaciones
Permanent URI for this collectionhttps://dspace-test.ucuenca.edu.ec/handle/123456789/23777
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Item Estudio sobre realización y documentación de pruebas software(Universidad de Cuenca, 2015) Villarreal Díaz, Diego Armando; Gamboa Sarmiento, Sonia Cristina; Gómez Flórez, Luis Carlos; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCThis paper shows the process and outcomes got by studying the software development (SD) technical documentation at the research group in Sistemas y Tecnologías de la Información (RGSTI), group attached to the Universidad industrial de Santander (UIS). The review process used was based on the recommendations made by Kitchenham et al. (2007) for systematic literature review. The DS studied were conducted as part of final degree projects of students in system engineering at UIS. It was considered projects carried out between 2001 and 2014. A total of 35 projects were reviewed and it was analyzed aspects related with the software methodology, design and software testing. As result of this review, it was proposed a set of recommendations to improve the SD quality in RG.Item Construcción de objetos virtuales de aprendizaje aplicando ingeniería de software(Universidad de Cuenca, 2015) Urrutia, Elsa P.; Urrutia, Fernando; Larrea, Anita L.; San Antonio, Thalía; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCThis article presents the results of the use of SEDLO methodology at the Universidad Técnica de Ambato for the creation of virtual learning objects (OVA). The project was developed in the Facultad de Ingeniería en Sistemas, Electrónica e Industrial, and enabled the creation of an OVA that was used in the virtual learning platform (EVA) of the university, specifically for the Software Engineering career. The use of OVA improved the traditional teaching-learning process in the classroom, helping students to acquire more knowledge by linking theory with practice through 3D simulation.Item Procesamiento de datos de espectrometría de masas: algoritmos y metodologías(Universidad de Cuenca, 2015) Calle, Sofía; Chasiluisa, Silvia; Carvajal, Jorge; Herrera, Roberto; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCCancer is an asymptomatic disease at an early stage and very difficult to diagnose in many cases it is not perceived until it has already reached the stage of metastasis, spreading in other organs of the body. It is the second cause of death in Ecuador despite progress made in recent years have been revolutionary, there are cases where the cancer is detected in its terminal stage and still has not found any scientific or empirical methodology to indicate the presence of this pathology. Traditional methods of diagnosing cancer in any of its types are relatively ineffective in early stages, using invasive methods and at risk of being detected as false positive or false negative. Research centers and universities have joined forces to seek alternative diagnosis and treatment of cancer using methods to improve the efficiency of diagnosis and detection of cancer in its early stages. This paper discusses a group of algorithms and methodologies for processing data sets of mass spectrometry measurements of cancer and normal analyzed samples using computing platforms aimed at improving the quality of measurements for biomarkers definition applications.Item Diseño de una aplicación móvil para monitorear la cobertura GSM en Cuenca(Universidad de Cuenca, 2015) Gallardo A., Rafael; Jaramillo V., Juan C.; Astudillo-Salinas, Darwin; Palacio-Baus, Kenneth; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCThis paper presents e-Cobertura, a mobile application developed for the Android Operating System for measuring GSM signal power, and presents a Web-hosted representative coverage map generated based on the taken measurements called coberturaWeb. e-Cobertura allows presenting parameters of the network and the mobile device used for measurement, as well as statistical representation of these data. coberturaWeb not only shows the measurements acquired by the application, but also allows the user to interact with it in order to obtain detailed information about specific areas of the city.Item Infraestructura basada en Globus Toolkit para dar soporte a repositorios distribuidos de imágenes médicas(Universidad de Cuenca, 2015) Guillermo, Juan-Carlos; Gualán, Ronald; Solano-Quinde, Lizandro D.; Collaguazo-Montalván, Diana; Ramírez-Montalván, Whasintong; La Cruz, Alexandra; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCGrid computing is a recent and innovative technology; recently it has been used for designing teleradiology systems. Grid computing enables the integration and collaborative use of high performance computers, networks and databases, suitable for developing a teleradiology system. In this work we present a solution based on grid computing for a teleradiology system. This infrastructure allows accessing and exchanging of medical images stored physically located in different repositories like; hospitals and diagnostic imaging centers. Globus Toolkit (v6.0) is used as an intermediate communication program in this grid infrastructure. Images are stored in local repositories managed and handled by servers PACS (Picture Archiving and Communication System), usually used in workstations of the medical imaging centers. The main contribution in this paper is the design of a grid infrastructure for searching purposes either semantic or visual content, with greater emphasis on the integration of data security, user authentication while maintaining patient confidentiality.Item Cloud computing con herramientas open-source para internet de las cosas(Universidad de Cuenca, 2015) Campoverde M., Ariel M.; Hernández R., Dixys L.; Mazón O., Bertha E.; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCOne of the components of a telemetry system based on Internet of Things (IoT) is Cloud Computing, which consists of one or multiple interconnected servers that involve hardware and software to provide monitoring and control services. This paper shows a SaaS (Software as a Service) Cloud Computing structure for IoT by applying chosen open source tools based on a technical study whose results were validated by implementing a real time dashboard. The objective of this work is to define a Cloud-level structure that allows deploying any application involved in IoT. For this purpose, current open source tools being adopted by the scientific community were analyzed and then those ones which better fit for restricted resources environments were selected, typical of wireless sensor networks (WSN).Item Integration and massive storage of hydro-meteorological data combining big data & semantic web technologies(Universidad de Cuenca, 2015) Tello, Andrés; Freire, Renán; Espinoza, Mauricio; Saquicela Galarza, Víctor Hugo; Universidad de Cuenca; Dirección de Investigación de la Universidad de CuencaEcuador contains an immense collection of hydro-meteorological data, informing us via standards how to locate and invoke them. If we want to make such data easier to understand and use, we need to store them in a common repository and annotate them by means of descriptive metadata. This paper proposes an approach for the massive storage, integration and semantic annotation of hydro-meteorological data using an open source integration container, NoSQL databases and Semantic Web technologies. The main contributions of this paper are: i) a shared common repository of hydro-meteorological data, ii) automatic semantic annotation to formally describe the data sources, and iii) efficient mechanisms for searching and retrieving hydro meteorological data.Item Plataforma basada en ecgML para el estudio de las complicaciones cardiovasculares en el adulto mayor con síndrome metabólico(Universidad de Cuenca, 2015) Parra, Freddy; Andrade, Diana; Cruz, Julio; Solano-Quinde, Lizandro; Palacio-Baus, Kenneth; Encalada, Lorena; Wong, Sara; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCThis research is part of DIUC- PROMETEO project Heart rate variability and insulin sensitivity in the elderly population of Cuenca. In this paper preliminary results of the development of a database for the study of metabolic syndrome and cardiac complications are shown. The main objective of this project is to integrate data collected on the project within an open framework. The proposed system is a flexible solution based on ecgML that can integrate different types of variables: ECG in SCP-ECG format, demographic, clinical, anthropometric and biochemical variables. Presently, the platform developed is used for the management of the multiparametric information of DIUC-PROMETEO project. Data from 180 elderly people have been registered. MS prevalence is close to 40%. From this population, 117 ECG records are available for cardiological studies.Item Desarrollo de sistemas receptores de AM, FM y ADS-B utilizando radio definida por software, hardware y software libre(Universidad de Cuenca, 2015) Romero, Santiago; Tipantuña, Christian; Estrada, José Antonio; Carvajal, Jorge; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCThis paper describes in real applications the potential and flexibility of the Software Defined Radio (SDR) technology, for this purpose the development of different low-cost communications systems using open source hardware and software is shown. The AM, FM and ADS-B receivers described in this paper have been developed using a credit card size computer Raspberry Pi and a module RTL-SDR as hardware platform; on the other hand as software platform is used the distribution Raspbian, GNU Radio toolkit and the software Dump 1090.Item Evaluación de la conectividad IPV6 en la banda de 2,4 Ghz(Universidad de Cuenca, 2015) Egas Acosta, Carlos Roberto; Guamán Gavilanez, Edgar Francisco; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCNowadays, there are many wireless technologies that work in the 2.4GHz ISM band. This is extremely true for data networks in the local and personal area, which are called WLAN and WPAN, respectively. Considering the growing popularity of IEEE802.11 standard and the great 6LoWPAN potential of use related to IoT (which works with the IEEE 802.15.4 standard), it raises a several questions related to their coexistence specifically referring to the interference between them. This paper examines the effects of IEEE 802.11 standard over IEEE 802.15.4 transmissions, by analyzing delays and loss of connectivity when they work simultaneously. The study has made by implementing a prototype network using hardware Waspmote 6LoWPAN, Libelium developed in partnership with IBM development platform, Mote Runner. This prototype network is exposed to different interference conditions caused by the IEEE 802.11 standard. Measures are have been tabulated and analyzed in order to explain different behaviors and determine the best conditions to minimize delay and optimize the performance of transmissions.Item Inicio network design for data transmission of weather sensors(Universidad de Cuenca, 2015) Reyes-Coellar, Juan; Tene, Mauricio; Astudillo-Salinas, Darwin; Barros, Gabriel; Solano-Quinde, Lizandro; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCTo acquire information from the environment in a large area of the south PROMAS1 has deployed weather sensors in a large area to acquire information from the environment, which must be collected from the remote locations and transferred to data center? Currently, the data collection is done manually, which means that PROMAS staff needs to go to the actual sensor location and download the data, which involves time invested and recurring costs for them. Therefore, in this work, a network design to automate the data collection and transfer is proposed. The goal is to get data with the lowest possible latency, so data is available as soon as information is generated. The proposed network transfers data using the standard IEEE 802.11 or IEEE 802.15.4, which involve the analysis of three fundamental parameters as distance, energy and deployment cost.Item Protocolo de pruebas para evaluar el SAR (Tasa de Absorción Específica) producido por terminales móviles(Universidad de Cuenca, 2015) Romero G., Andrés F.; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCThis paper proposes a test protocol to evaluate the Specific Absorption Rate (SAR) produced by cell phones. First the resolution issued by ex CONATEL (National Telecommunications Council) for the approval of telecommunications terminal equipment is analyzed. Then a study on exposure to electromagnetic fields based on international standards to determine the appropriate procedures for SAR measurements is made. The next step is to analyze the specific absorption rate. Once done this theoretical study, the equipment and the SAR measurement system are specified, and then a testing protocol is developed to evaluate the SAR. It was possible to determine which is the appropriate standard for verification of SAR and can be applied in Ecuador.Item Modelos de calidad de software: una revisión sistemática de la literatura(Universidad de Cuenca, 2015) Villalta, Ana; Carvallo, Juan Pablo; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCQuality evaluation of a software product plays an important role both, in the selection of software components and quality assessment of the deliverables resulting from a software development project. Software Quality Models (QMs) are artifacts specifically designed and constructed to support these activities. This paper summarizes the process of application of a Systematic Literature Review, leaded to update the State of the art in relation to QM resulting from a previous process carried out in 2007, in order to identify and include related works that have been published between 2007 and 2014. The study focuses on the structural elements, properties, construction methods and applications for which QM have been used in this period.Item OpenMP implementation of the horizontal diffusion method of the weather research and forecasting (WRF) model(Universidad de Cuenca, 2015) Gualán-Saavedra, Ronald M.; Solano-Quinde, Lizandro D.; Bode, Brett M.; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCThis article analyzes and implements the Horizontal Diffusion method of the Weather Research and Forecast (WRF) model, using the OpenMP API to exploit the multi-core power of an Intel Xeon computer. The main scope of the study is to assess well established concepts related to scalability and cache efficiency by mean of three experiments where the use of appropriate profilers shows to be of great utility to understand computing behavior and consequently to choose some optimization approaches.Item Descubriendo patrones de modelos de contexto basados en i*(Universidad de Cuenca, 2015) Abad, Karina; Carvallo, Juan Pablo; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCBuilding enterprise context models, an essential tool to design today’s information systems, is generally a cumbersome task, mainly due to the lack of communication between the administrative stakeholders and technical consultants responsible of their construction. In order to facilitate this task and reduce mistakes on their construction, this paper proposes the reuse of context elements identified in several industrial cases, which have been packaged and stored in a catalogue specifically designed for this purpose.Item Competencias mediáticas audiovisuales en alumnos de colegios de la ciudad de Loja(Universidad de Cuenca, 2015) Marín-Gutiérrez, Isidro; Rivera, Diana; Gonzáles, Mayra; Velásquez, Andrea; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCThis research includes the study of audiovisual media literacy. We worked with a sample of 23 schools in the city of Loja (Ecuador), with a population of 1,150 students from primary to tenth year of third year of high school. In order to analyze and diagnose the level of subjective audiovisual media competence in young (14-18 years) of public, private and “fiscomisionales” schools. On the other hand it is important to deepen and disseminate this research to be included in the academic curriculum matters relating to communication and the new era we are experiencing. The world is constantly changing and it is necessary that young know how to use the new tools properly and also understand and analyze the information that is transmitted by these sites.Item Explotación de información en el dominio geo-hídrico ecuatoriano utilizando tecnología semántica(Universidad de Cuenca, 2015) Lupercio, Lucía; Baculima, Fernando; Espinoza, Mauricio; Saquicela Galarza, Víctor Hugo; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCIn this article, we present an approach for exploiting the information in the Ecuadorian geo-hydrological domain, in tune with current trends relative to data integration from different sources and the publication of these data by applying the principles of Linked Data. Our approach uses GeoSPARQL as query language, which provides the ability to perform spatial operations for exploiting and discovery of resources that represent geographic entities. These resources are stored on distributed RDF data stores, which correspond to data from different institutions involved in geo-hydrological domain. This proposal facilitates the integration and use of information from the existing links between resources that refer to the same real-world phenomenon. Finally, the resources exploited are displayed on a graphic tool named, map4rdf, allowing a unified vision of national hydric reality. This tool has been enhanced in our approach, becoming also in a technological contribution.Item Desafíos sobre las nuevas tecnologías de resolución de CAPTCHA y características de evolución de CAPTCHA en el futuro próximo(Universidad de Cuenca, 2015) Maldonado Ruiz, Daniel Alejandro; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUC; Devincenzi, Juan AlejandroSince the development of computer systems, it becomes necessary to differentiate the responses came from both a computer system as a person, so that one cannot replace the other in environments where only one person should use, which was made through CAPTCHA, which is an efficient arrangement from the cryptographic viewpoint, but it has found several issues with the new systems of Artificial Intelligence. This Paper includes a brief theoretical analysis of the reasons for their use from the cryptography viewpoint, the evolution of the system in its presentation for the users, focusing on the strongest CAPTCHA in the market. Additionally, a review of the technology that has allowed to break the system at certain level and the evolution of Artificial Intelligence systems in the medium term could defeat CAPTCHA; to finally make recommendations on how to design and maintain a strong CAPTCHA at short and medium term against the evolution of technology and what kind of features should have CAPTCHA to remain a valid test to differentiate a human from a machine.Item Reconocimiento de caracteres del alfabeto dactilológico mediante redes neuronales artificiales: un enfoque experimental(Universidad de Cuenca, 2015) Auquilla, Diego; Palacio-Baus, Kenneth; Saquicela Galarza, Víctor Hugo; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCThis article presents the development of a system aimed to aid people with speech and/or communication disabilities, who must use the sign language and the dactilologic alphabet in order to transmit their ideas. To assist others in understanding such language, we present an experimental approach for sign language characters recognition through digital image acquisition and processing techniques and the use of a Neural Network based classifier.Item Validación de un algoritmo robusto para la estimación del movimiento en secuencias de imágenes cardiacas(Universidad de Cuenca, 2015) Medina, Rubén; Ibarra, Emiro; Morocho, Villie; Vanegas, Pablo; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUCThis paper describes the validation of a sparse based optical flow algorithm using two sequences extracted from the Sintel database and also images extracted from a tagged magnetic resonance image sequence representing a short–axis slice located at the mid-wall of the left ventricle. Results are promising as the average magnitude error for the Sintel sequences is lower than 3 pixels and lower than 1 mm for the tagged MRI.