Recent Submissions

  • Cloud Model for Purchase Management in Health Sector of Peru based on IoT and Blockchain

    Celiz, Rodrigo Cubas; De La Cruz, Yasmin Escriba; Sanchez, David Mauricio; u201316958@upc.edu.pe (Institute of Electrical and Electronics Engineers Inc., 2019-01)
    Purchase management of medical supplies is a critical and important process that affects the services provision quality. Nonetheless, it is facing a growing pressure to provide visibility and traceability of the purchase, to reduce fraud, to improve flexibility and to ensure communication between everyone involved. Currently, private health institutions in Peru choose to implant different software products within the same company with restricted visibility access to other concerned parties and based on information from a single source. A new alternative is Blockchain technology, since it provides a single source of shared truth to all participants and ensures that the information cannot be altered, thus offering high levels of transparency that, together with IoT technology, creates not only visibility about where things are, but also traceability, showing the current state of things.
  • A Detection Method of Ectocervical Cell Nuclei for Pap test Images, Based on Adaptive Thresholds and Local Derivatives

    Oscanoa1, Julio; Mena, Marcelo; Kemper, Guillermo; julioscanoa@gmail.com (Science and Engineering Research Support Society, 2015-04)
    Cervical cancer is one of the main causes of death by disease worldwide. In Peru, it holds the first place in frequency and represents 8% of deaths caused by sickness. To detect the disease in the early stages, one of the most used screening tests is the cervix Papanicolaou test. Currently, digital images are increasingly being used to improve Pap test efficiency. This work develops an algorithm based on adaptive thresholds, which will be used in Pap smear assisted quality control software. The first stage of the method is a pre-processing step, in which noise and background removal is done. Next, a block is segmented for each one of the points selected as not background, and a local threshold per block is calculated to search for cell nuclei. If a nucleus is detected, an artifact rejection follows, where only cell nuclei and inflammatory cells are left for the doctors to interpret. The method was validated with a set of 55 images containing 2317 cells. The algorithm successfully recognized 92.3% of the total nuclei in all images collected.
    Acceso abierto
  • Blueberry supply chain in Peru: Planning, integration and execution

    Ramos, E; Espichan, K; Rodriguez, K; Lo, W; Wu, Z; edgar_drp@yahoo.com (ExcelingTech, 2018)
    The Blueberry situation in Peru is in a stage of development, in which it is necessary to incorporate good management practices as well as productive to raise the competitiveness of the enterprises. The findings were synthesized and analyzed, to propose improvements and to support the growth of the small companies in the long term. The improvement proposal is based on the best practices and supply chain models applied in the industry. Also, the research was based on sources of information from researchers with experience in evaluating and analyzing the supply chain of the perishable sector in different scenarios worldwide.
    Acceso restringido temporalmente
  • Statistical model and taxonomy of devices for assessing the level of VR penetration in the development of applications

    Arce, Brenda; Sanchez, Cynthia; Barrientos, Alfredo; Villalta, Rosario (International Institute of Informatics and Systemics, IIIS, 2018)
    Acceso restringido temporalmente
  • Maturity model for the strategic management of the corporate scaling of family businesses in the services sector

    Bravo, Claudia; Ortiz, Sofía; Raymundo, Carlos; Torres, Carlos; Quispe, Grimaldo (International Institute of Informatics and Systemics, IIIS, 2018)
    Acceso restringido temporalmente
  • Waste optimization model based on Lean Manufacturing to increase productivity in micro- and small-medium enterprises of the textile sector

    Bellido, Yamil; La Rosa, Andrea; Torres, Carlos; Quispe, Grimaldo; Raymundo, Carlos; U201316394@upc.edu.pe (International Institute of Informatics and Systemics, IIIS, 2018)
    Acceso restringido temporalmente
  • Wearable technology model to control and monitor hypertension during pregnancy

    Lopez, Betsy Diamar Balbin; Aguirre, Jimmy Alexander Armas; Coronado, Diego Antonio Reyes; Gonzalez, Paola A.; betsybalbin@gmail.com; jimmy.armas@upc.pe; diegoreyes1212@gmail.com; paola.gonzalez@dal.ca (IEEE Computer Society, 2018-06-27)
    In this paper, we proposed a wearable technology model to control and monitor hypertension during pregnancy. We enhanced prior models by adding a series of health parameters that could potentially prevent and correct hypertension disorders in pregnancy. Our proposed model also emphasizes the application of real-time data analysis for the healthcare organization. In this process, we also assessed the current technologies and systems applications offered in the market. The model consists of four phases: 1. The health parameters of the patient are collected through a wearable device; 2. The data is received by a mobile application; 3. The data is stored in a cloud database; 4. The data is analyzed on real-time using a data analytics application. The model was validated and piloted in a public hospital in Lima, Peru. The preliminary results showed an increased-on number of controlled patients by 11% and a reduction of maternal deaths by 7%, among other relevant health factors that allowed healthcare providers to take corrective and preventive actions.
  • Simulation of suicide tendency by using machine learning

    Calderon-Vilca, Hugo D.; Wun-Rafael, William I.; Miranda-Loarte, Roberto; pcsihcal@upc.edu.pe; pcsihcal@upc.edu.pe; pcsihcal@upc.edu.pe (IEEE Computer Society, 2018-07)
    Suicide is one of the most distinguished causes of death on the news worldwide. There are several factors and variables that can lead a person to commit this act, for example, stress, self-esteem, depression, among others. The causes and profiles of suicide cases are not revealed in detail by the competent institutions. We propose a simulation with a systematically generated dataset; such data reflect the adolescent population with suicidal tendency in Peru. We will evaluate three algorithms of supervised machine learning as a result of the algorithm C4.5 which is based on the trees to classify in a better way the suicidal tendency of adolescents. We finally propose a desktop tool that determines the suicidal tendency level of the adolescent.
  • Adsorption of N,N-dimethylamine from aqueous solutions by a metal organic framework, MOF – 235

    Beltrán-Suito, Rodrigo; Pinedo-Flores, Angela; Bravo-Hualpa, Fabiola; Ramos-Muñoz, Jorge; Sun-Kou, María del Rosario; msun@pucp.edu.pe (Taylor and Francis Inc., 2018)
    Water-resistant MOF-235 was used to adsorb N,N-dimethylamine (DMA) from aqueous solutions. It was synthesized from terephthalic acid and FeCl3.6H2O under air-free conditions and characterized by its crystalline structure, functional groups and temperature resistance. The kinetic data results were best adjusted to the pseudo-second order model (R2>0.963). The best-fit isotherm, Langmuir model, suggested the adsorption of DMA is localized on homogenously distributed active sites on the surface. This fit was confirmed by the value of β = 1 on the Redlich-Peterson model. Our study suggests that the manipulation of novel materials such as MOF-235 promises new avenues for water treatment solutions. Schematic structure of MOF-235 and its application as adsorbent.
  • A new software development model: Innovation through mobile application with UCD

    Espinoza, Jorge; Loarte, Pamela; Espinoza, Carlos; Paz, Freddy; Arenas, Juan; jeespinozam@pucp.pe (Springer Verlag, 2018)
    Pursuit of innovation projects with the absent of a methodology to follow hampers the development of the software product as its complexity grows since the freedom of its own advancement is confused with the lack of order on it. Traditional and agile methodologies do not adapt to this kind of projects therefore, in this paper we aim to design a model that incorporates characteristics of both of them to get a solution of a need found in society. In this study, we focus on the construction of a mobile application that answer to the lack of a system that integrates pharmaceutical products from different establishment through the appliance of usability concept with the UCD (User centered design) approach. In this case we only detail about four of the seven stages proposed in the model developed with its techniques, tools and activities conducted. Results obtained show that the model proposed achieve the expectative and its use is not limited to just mobile applications but to any kind of software project.
    Acceso restringido temporalmente
  • Comparative analysis of cross-platform communication mechanisms

    Atencio, Luis; Aybar, Bruno; Barrientos Padilla, Alfredo; u201313101@upc.ecu.pe (Association for Computing Machinery, 2018)
    The present research aims to compare the different technologies that allow real-time communication between Android and iOS devices. We conducted a measurement-driven experiment to test the performance of each technology under different scenarios. We determine their functionality according to the environment for which they have been developed, showing competent information about their capabilities based on the communication channel they use, and their performance measured in milliseconds. The final results allow mobile application developers to determine which technologies suits them the best, based on the specific context of their projects.
    Acceso restringido temporalmente
  • Master data management maturity model for the microfinance sector in Peru

    Vásquez Zúñiga, Daniel; Kukurelo Cruz, Romina; Raymundo Ibañez, Carlos; Dominguez, Francisco; Moguerza, Javier; u201213730@upc.edu.pe (Association for Computing Machinery, 2018)
    The microfinance sector has a strategic role since they facilitate integration and development of all social classes to sustained economic growth. In this way the actual point is the exponential growth of data, resulting from transactions and operations carried out with these companies on a daily basis, becomes imminent. Appropriate management of this data is therefore necessary because, otherwise, it will result in a competitive disadvantage due to the lack of valuable and quality information for decision-making and process improvement. The Master Data Management (MDM) give a new way in the Data management, reducing the gap between the business perspectives versus the technology perspective In this regard, it is important that the organization have the ability to implement a data management model for Master Data Management. This paper proposes a Master Data management maturity model for microfinance sector, which frames a series of formal requirements and criteria providing an objective diagnosis with the aim of improving processes until entities reach desired maturity levels. This model was implemented based on the information of Peruvian microfinance organizations. Finally, after validation of the proposed model, it was evidenced that it serves as a means for identifying the maturity level to help in the successful of initiative for Master Data management projects.
    Acceso restringido temporalmente
  • Innovación y modelos de gerencia: su reflexión transformadora desde lo humano y el conocimiento

    Landazury-Villalba L. (Revista Espacios, 2018)
    Para las organizaciones la innovación se ha posicionado como una estrategia movilizadora de valor y que permite generar competencias distintivas en sus actividades, diferentes perspectivas se han desarrollado en torno a su vinculación con el modelo de decisiones de la organización, por ello el propósito de este documento se orienta a establecer una reflexión de los referentes de modelos gerenciales y el papel de la innovación en estos, que permita la identificación de las bases de conocimiento para su aplicación e implementación en la administración de negocios, determinándose que la actividad innovadora vinculada a los modelos gerenciales, se contempla desde el recurso intelectual, con el fin de mejorar la forma por la cual se crean bienes y servicios, siendo la reflexión principal la relevancia que adquiere para los modelos modernos de gerencia de las organizaciones la mentalidad de cambio y la filosofía innovadora para la sostenibilidad en el tiempo.
    Acceso abierto
  • Quality data extraction methodology based on the labeling of coffee leaves with nutritional deficiencies

    Jungbluth, Adolfo; Yeng, Jon Li; U201311506@upc.edu.pe (Association for Computing Machinery, 2018-04)
    Nutritional deficiencies detection for coffee leaves is a task which is often undertaken manually by experts on the field known as agronomists. The process they follow to carry this task is based on observation of the different characteristics of the coffee leaves while relying on their own experience. Visual fatigue and human error in this empiric approach cause leaves to be incorrectly labeled and thus affecting the quality of the data obtained. In this context, different crowdsourcing approaches can be applied to enhance the quality of the data extracted. These approaches separately propose the use of voting systems, association rule filters and evolutive learning. In this paper, we extend the use of association rule filters and evolutive approach by combining them in a methodology to enhance the quality of the data while guiding the users during the main stages of data extraction tasks. Moreover, our methodology proposes a reward component to engage users and keep them motivated during the crowdsourcing tasks. The extracted dataset by applying our proposed methodology in a case study on Peruvian coffee leaves resulted in 93.33% accuracy with 30 instances collected by 8 experts and evaluated by 2 agronomic engineers with background on coffee leaves. The accuracy of the dataset was higher than independently implementing the evolutive feedback strategy and an empiric approach which resulted in 86.67% and 70% accuracy respectively under the same conditions.
    Acceso restringido temporalmente
  • Master data management maturity model for the successful of mdm initiatives in the microfinance sector in Peru

    Vásquez D. (Association for Computing Machinery, 2018-04)
    The microfinance sector has a strategic role since they facilitate integration and development of all social classes to sustained economic growth. In this way the actual point is the exponential growth of data, resulting from transactions and operations carried out with these companies on a daily basis, becomes imminent. Appropriate management of this data is therefore necessary because, otherwise, it will result in a competitive disadvantage due to the lack of valuable and quality information for decision-making and process improvement. The Master Data Management (MDM) give a new way in the Data management, reducing the gap between the business perspectives versus the technology perspective In this regard, it is important that the organization have the ability to implement a data management model for Master Data Management. This paper proposes a Master Data management maturity model for microfinance sector, which frames a series of formal requirements and criteria providing an objective diagnosis with the aim of improving processes until entities reach desired maturity levels. This model was implemented based on the information of Peruvian microfinance organizations. Finally, after validation of the proposed model, it was evidenced that it serves as a means for identifying the maturity level to help in the successful of initiative for Master Data management projects.
  • Modelo de servicio ágil bajo demanda de gestión del servicio de trabajo doméstico: caso peruano de estudio

    Muñoz A. (International Institute of Informatics and Systemics, IIIS, 2018)
    En la actualidad el entorno globalizado y constantemente cambiante de los negocios ha llevado a las organizaciones a desarrollar sus servicios rápidamente para poder ser más competitivos en el mercado. Sin embargo, la necesidad de ir probando las diferentes funcionalidades de un servicio en marcha e ir testeando, para acabar ofreciendo una solución final, es considerada una tarea complicada y de muy alto costo. La literatura estudiada muestra que se han generado modelos de diseño de servicios con enfoque ágil, pero orientados a corporaciones ya establecidas o con diseños muy robustos que presuponen altos costos; a la fecha de desarrollo de esta investigación no se han encontrado modelos con una orientación hacia nuevos emprendimientos o startups de servicio. En el presente artículo se propone un modelo ágil para el diseño de servicios, el cual destaca principalmente la agilidad, los bajos costos y la iteración incremental en el desarrollo. El modelo ha sido puesto en marcha en el sector de trabajo del hogar en Lima, Perú, donde se generó una mejora en la satisfacción de los clientes de 2.02 a 3.56.
    Acceso abierto
  • PMMA-Assisted Plasma Patterning of Graphene

    Bobadilla, Alfredo D.; Ocola, Leonidas E.; Sumant, Anirudha V.; Kaminski, Michael; Seminario, Jorge M.; alfdoug@gmx.com (Hindawi Limited, 2018)
    Microelectronic fabrication of Si typically involves high-temperature or high-energy processes. For instance, wafer fabrication, transistor fabrication, and silicidation are all above 500°C. Contrary to that tradition, we believe low-energy processes constitute a better alternative to enable the industrial application of single-molecule devices based on 2D materials. The present work addresses the postsynthesis processing of graphene at unconventional low temperature, low energy, and low pressure in the poly methyl-methacrylate- (PMMA-) assisted transfer of graphene to oxide wafer, in the electron-beam lithography with PMMA, and in the plasma patterning of graphene with a PMMA ribbon mask. During the exposure to the oxygen plasma, unprotected areas of graphene are converted to graphene oxide. The exposure time required to produce the ribbon patterns on graphene is 2 minutes. We produce graphene ribbon patterns with ∼50 nm width and integrate them into solid state and liquid gated transistor devices.
    Acceso abierto
  • Implementación de una herramienta de integración de varios tipos de interacción humano-computadora para el desarrollo de nuevos sistemas multimodales

    Alzamora M. (International Institute of Informatics and Systemics, IIIS, 2018)
    Las personas interactúan con su entorno de forma multimodal. Esto es, con el uso simultaneo de sus sentidos. En los últimos años, se ha buscado una interacción multimodal humano-computador desarrollando nuevos dispositivos y usando diferentes canales de comunicación con el fin de brindar una experiencia de usuario interactiva más natural. Este trabajo presenta una herramienta que permite la integración de diferentes tipos de interacción humano computador y probarlo sobre una solución multimodal.
    Acceso abierto
  • Model of integration of lean tools and knowledge management to improve the production process in a metal-mechanic company

    Damacen G. (IEOM Society, 2018)
    In the new context of globalization, large manufacturing companies are forced to improve their production processes, so they need to design and apply methodologies that align with this trend. However, these practices are not applied in SMEs with similar problems, which mainly influence the timely delivery of their products and especially in the metal mechanic sector. Therefore, this article proposes the design of an integration model of Lean Tools and Knowledge Management, whose methodology is composed of 4 phases; in phase 0, the awareness and analysis of the current situation is carried out, in the first phase knowledge management is applied (design, development, implementation and sustainability), in phase 2, the Lean tools are implemented, initiating the application of the 5's, followed by standardized work and then by Total Productive Maintenance; finally in phase 3, the analysis and control of the results obtained. The model was validated in a metal-mechanic SME in Peru where an increase in production of 20% was obtained, an improvement of 30% in the training and training of the person and a 14% improvement in the overall efficiency of the team.
  • Desarrollo de aplicaciones para personas con discapacidad motora utilizando Emotiv Epoc

    Vega A. (International Institute of Informatics and Systemics, IIIS, 2018-01-01)
    Personas con discapacidad motora presentan inconvenientes en el desarrollo de actividades tales como caminar, correr, comer. Además, en su mayoría, la visión y el intelecto no se ven afectados. Estas deficiencias no le permiten al manipular dispositivos tecnológicos que podrían ayudarlo a mejorar su calidad de vida como los smartphones. Presentamos una solución que permite superar esta limitación apoyada en la tecnología Brain Computer Interface).
    Acceso abierto

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