Artículos y presentaciones en Congresos

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  • Documento de conferencia
    Acceso Abierto
    Un abordaje de co-diseño de aplicaciones móviles destinadas a niños y jóvenes con condición del espectro autista
    (2020) Corso, Cynthia L.; Challiol, Cecilia; Hug, Mercedes X.; Carreras, Xilenia M.
    Los avances tecnológicos han permitido que tome gran relevancia el uso de aplicaciones móviles como un medio de apoyo para favorecer la comunicación y mejorar las habilidades sociales de niños y jóvenes. El objetivo de este trabajo es generar un espacio de reflexión sobre el grado de participación de niños y jóvenes con Condición del Espectro Autista en el diseño de aplicaciones móviles destinadas a mejorar las habilidades sociales. Se presenta el estado del arte en esta temática, detallando diferentes aplicaciones móviles existentes como así también experiencias de diseño y se discuten sus implicancias. Se propone un abordaje de co-diseño de aplicaciones móviles destinadas a niños y jóvenes con desafíos en habilidades sociales usando recursos de Design Thinking.
  • Artículo
    Acceso Abierto
    The accessible Web portal B-Navigator: prototype evaluation
    (2005) Harari, Ivana; Ferreyra, José Alberto; Díaz, Francisco Javier
    The accessible Web portal B-Navigator constitutes a digital medium between visually impaired and blind people, and Internet. This portal offers two basic functions: firstly, it makes accessible the Web page solicited by the user applying the accessibility norms recommended by international organizations; secondly, it integrates different adaptations like screen magnifiers, document readers, which are incorporated automatically in the Web page visited although they were not been provided in the original design. This article presents an evaluation performed to a prototype of the B-Navigator portal, where twenty users with different visual disability levels have participated. It was mounted in the Braille Library of La Plata city, where an Internet environment was simulated. The evaluation results were very useful. The users selection was adequately and lets us to test the performance, the assistance level, the efficiency of the human-computer interaction, the capacity of adaptation of the portal. In this manner, the quality of the product was analyzed. This work was a great incentive to finish the portal development and to publish it definitively in the Web in order to be used by all of us without discriminations.
  • Documento de conferencia
    Acceso Abierto
    Adaptación de una aplicación móvil de recolección de datos para Ciencia Ciudadana: mejorando la experiencia de usuario
    (2020) Di Claudio, Federico; Mozzon Corporaal, Federico; Lliteras, Alejandra Beatriz; Grigera, Julián; Gordillo, Silvia Ethel
    La recolección de datos en los proyectos de Ciencia Ciudadana resulta ser una de las actividades más realizadas por los voluntarios. Es de importancia, que la experiencia de los voluntarios al usar las aplicaciones móviles creadas para tal fin, promuevan no solo una buena experiencia para el usuario, sino que además favorezcan, de manera transparente, la mayor cantidad de toma de datos posibles, independientemente de las limitaciones de permisos brindados a la aplicación o de los recursos de hardware que el dispositivo móvil posea. En este trabajo se presenta un widget adaptable, aplicado en la aplicación móvil “Resuelvo Explorando” con el fin de mejorar la experiencia de usuario y lograr una mayor democratización del acceso a la tecnología a través de la adaptación de la aplicación ante limitaciones de permisos y/o hardware, facilitando la recolección de datos para aquellos posibles voluntarios que estén limitados por el acceso a ciertas tecnologías.
  • Artículo
    Acceso Abierto
    Adaptive gamification in collaborative location collecting systems: a case of traveling behavior detection
    (2022) Dalponte Ayastuy, María; Torres, Diego
    Collaborative location collecting systems (CLCS) is a particular case of collaborative systems where a community of users collaboratively collects data associated with a geo-referenced location. Gamification is a strategy to convene participants to CLCS. However, it cannot be generalized because of the different users’ profiles, and so it must be tailored to the users and playing contexts. A strategy for adapting gamification in CLCS is to build game challenges tailored to the player’s spatio-temporal behavior. This type of adaptation requires having a user traveling behavior profile. Particularly, this work is focused on the first steps to detect users’ behavioral profiles related to spatialtemporal activities in the context of CLCS. Specifically, this article introduces: (1) a strategy to detect patterns of spatial-temporal activities, (2) a model to describe the spatial-temporal behavior of users based on (1), and a strategy to detect users’ behavioral patterns based on unsupervised clustering. The approach is evaluated over a Foursquare dataset. The results showed two types of behavioral atoms and two types of users’ behavioral patterns.
  • Artículo
    Acceso Abierto
    Adaptive Gamification in Collaborative systems, a Systematic Mapping Study
    (2021) Dalponte Ayastuy, María; Torres, Diego; Fernández, Alejandro
    Mass collaboration mediated by technology is now commonplace (Wikipedia, Quora, TripAdvisor). Online, mass collaboration is also present in science in the form of Citizen Science. These collaboration models, which have a large community of contributors coordinated to pursue a common goal, are known as Collaborative systems. This article introduces a study of the published research on the application of adaptive gamification to collaborative systems. The study focuses on works that explicitly discuss an approach of personalization or adaptation of the gamification elements in this type of system. It employs a systematic mapping design in which a categorical structure for classifying the research results is proposed based on the topics that emerged from the papers review. The main contributions of this paper are a formalization of the adaptation strategies and the proposal of a new taxonomy for gamification elements adaptation. The results evidence the lack of research literature in the study of adapting gamification in the field of collaborative systems. Considering the underlying cultural diversity in those projects, the adaptability of gamification design and strategies is a promissory research field.
  • Documento de conferencia
    Acceso Abierto
    Adaptive gamification of citizen science projects
    (2021) Dalponte Ayastuy, María; Torres, Diego
    This article presents the doctoral proposal whose main objective is to develop an adaptation device for the game elements and mechanics in citizen science projects, based on the user behaviour and the community ecosystem. Gamification is a strategy to convene participants to citizen science projects. However, it cannot be generalized because of the different users’ profiles, and so it must be tailored to the users and playing contexts. Specifically, this article introduces the main and secondary objectives, the methodology and the expected results of these doctoral proposal.
  • Resumen
    Acceso Abierto
    Agro-Knowledge Integration: Developing a FAIR data science approach for adding value to the agricultural supply chain
    (2021) Torres, Diego; Lezoche, Mario; Collazos, César; Codocedo, Víctor; Motz, Regina; Antonelli, Leandro; Panetto, Herve; Fernández, Alejandro
    Farms are the engine to support rural employment making a considerable contribution to territorial development. Even though they have always been considered a cornerstone of agricultural activity in the European Union (EU) and in Latin America, this sector most often suffers from very low efficiency and effectiveness, sensitivity to weather, market disruptions and other external factors. Two different problems in knowledge sharing are present in this domain. First, the various interoperability regulations between the countries. Although some efforts are done to bypass this problem, like the EU-Mercosur signed in the summer of 2019, the different process semantics implemented in each region are a serious threat to the fulfillment of the process interoperability. Another problem is that in most of the cases, the knowledge transferred from generation to generation is paramount from a cultural point of view, but most of the time, it does not answer to the needs nor the requirements of the agri-food value chain. We aim at creating the core technology for a knowledge hub that integrates and aligns international regulations in agricultural activities, such as FAO's best practices, and possibly the last-born EU-Mercosur regulations with the local restrictions, such as national policies, allowing the small farmers to access, in an easy way, a wider market through the certification of the practices and products. In order to develop this core technology, we propose to deploy various methodologies and tools working on the domains of knowledge formalization, domain alignment and visualization. The domain of formal representation allows for the semantic alignment of rules and restrictions from different institutional regulation bodies. Simultaneously, we will propose a model for incoherence detection letting us to highlight contradictory regulations. Those knowledge atoms and constructs will be represented through some visualization information interfaces according to the users’ needs. The methods and tools that will be employed are at the same time the pillars from the multi relational data mining (MRDM), the artificial intelligence (AI), the knowledge formalization (KF) domains, but will extend the interoperability properties of those domains to become a new interesting and valuable tool for the presented problem. This abstract is issued from an accepted Stic-AmSud project that wad elaborated during the secondments of the RUC-APS project.
  • Documento de conferencia
    Acceso Abierto
    Analyzing the design of Student Play, an educational module of Agent Socialmetric
    (2017) Kuz, Antonieta; Giandini, Roxana Silvia
    Currently, the incorporation of Information and Communication Technologies (ICT) into the educational process allows seeing the same from different dimensions. The educational software as an instructional support integrates the contents from a didactic and adapted to the teaching as a fundamental part in the environment of the society of the knowledge and the information. Seeking to deepen the relationship between teachers and students in the courtly context, we have developed a web tool called Agent SocialMetric based on two research areas, social networks and interface conversational agents. Integrating to Agent SocialMetric we extends the tool with a module called Student Play which is responsible for establishing interactive games for students to educate in values, through various interface conversational software agents. In the present research we present the tool and analyzing design considerations that we have taken into account. Finally, we will present the conclusions related to this compilation work.
  • Documento de conferencia
    Acceso Abierto
    Análisis comparativo de metodologías para la gestión de proyectos de minería de datos
    (2011) Moine, Juan Miguel; Gordillo, Silvia Ethel; Haedo, Ana Silvia
    La sistematización del proceso de minería de datos es un punto importante para la planificación y ejecución de este tipo de proyecto. Algunas organizaciones implementan el modelo KDD, mientras que otras aplican un estándar más específico como CRISP-DM. Si la organización ha adquirido productos de la empresa SAS, tiene a su disposición una metodología especialmente desarrollada para los mismos, la metodología SEMMA. Por otro lado, la metodología Catalyst (conocida como P3TQ) está ganando cada vez mayor popularidad debido a su completitud y flexibilidad para adaptarse en distintos escenarios. En el presente trabajo se realiza un análisis comparativo de las diferentes metodologías vigentes para minería de datos, evaluando no sólo la estructura del proceso, sino también aspectos importantes para la gestión del proyecto
  • Documento de conferencia
    Acceso Abierto
    Análisis y conclusiones de la primera evaluación del portal B-Navigator
    (2003) Harari, Ivana; Díaz, Francisco Javier; Ferreyra, José Alberto
    El portal de accesibilidad B-Navigator constituye un puente digital entre usuarios discapacitados visuales e Internet. El mismo ofrece dos funcionalidades básicas: primero, “hace accesible” la página solicitada por el usuario aplicándole las normativas de accesibilidad establecidas por organismos internacionales. Y segundo, “integra” diferentes herramientas de adaptación como sintetizador de voz, ampliación de pantalla, lector de documentos, que incorpora en forma automatizada a la página visitada, aunque ésta originalmente no los provea.\nEn este artículo se presenta la evaluación realizada sobre una versión prototípica del portal, en donde participaron veinte usuarios con diferentes grados de disminución visual y ceguera. El mismo fue montado sobre un ambiente simulado de Internet, en la red interna de computadoras de la Biblioteca Braille de la ciudad de La Plata.\nLos resultados de esta evaluación fueron muy satisfactorios. Se trabajó con una correcta muestra de usuarios, permitió poner a prueba al portal sobre diferentes aspectos, como su grado de asistencia, su eficacia en la interacción, su capacidad de adaptación y personalización, pudiendo así tener una medición concreta sobre la calidad del producto; permitiendo culminar con el desarrollo del portal y poder montarlo definitivamente en la Web para que pueda ser utilizado por todos sin discriminaciones.
  • Artículo
    Acceso Abierto
    ANDES: an approach to embed search services on the Web browser
    (2022) Bosetti, Gabriela; Tacuri, Alex; Gambo, Ishaya; Firmenich, Sergio; Rossi, Gustavo Héctor; Winckler, Marco; Fernández, Alejandro
    This article addresses search tasks, which are the most frequent type of tasks users do nowadays on the Web. We suggest that the customization of search services would improve the user’s searching experience, and it also might make search tasks more effective and efficient. We analyze user tasks for performing searches and types of search services. Then, we distinguish between primary search tasks (related to the initial user goal) and ancillary search tasks (those that are performed to find additional information necessary to understand how to achieve a primary search task). We also explain different types of search services, including global search services (which has an extensive search scope, possibly the whole Web) and in-site search services (which has a narrow scope of search focused on a specific Web site or data set). We also discuss features embedded into Web browsers to support search tasks and how Web browsers can support extensions allowing users to integrate customized search services. We propose an approach called ANDES that allows users to integrate into the Web browser new search services that are created by customizing search services offered by existing Web sites. By means of Web augmentation techniques, we demonstrate how users can customize the browser to trigger search services to any Web site and integrate the Web page results. We report on two evaluations showing that end-users can specify and use search services following our approach and that the proposed interaction is more convenient in contrast to traditional mechanisms. Beyond the tool used to demonstrate the feasibility of the ANDES approach, this paper aims to discuss new strategies for end-user programming that allow users to customize search services over the Web.
  • Documento de conferencia
    Acceso Abierto
    Aplicando restricciones en un datawarehouse temporal utilizando UML/OCL
    (2003) Neil, Carlos; Pons, Claudia Fabiana
    Un datawarehouse es una colección de datos no volátiles, variables en el tiempo y orientado a un tema específico utilizado para tomar decisiones. La necesidad de registrar valores que permitan evaluar tendencias, variaciones, máximos y mínimos, justifican considerar en el diseño la evolución temporal de atributos o interrelaciones. La determinación de restricciones que permitan mantener la consistencia de los datos almacenados e impidan los solapamientos de rangos temporales, permiten conservar la integridad de la base de datos. En la etapa de modelado la determinación de estas restricciones se realizan de manera informal.\nEstablecer sin ambigüedad las mismas no es posible sin un lenguaje apropiado.\nProponemos determinar restricciones en el modelo de datos transformando el esquema multidimensional temporal a UML y emplear OCL para documentar dichas limitaciones.
  • Artículo
    Acceso Abierto
    Applying MDA and OMG Robotic Specification for Developing Robotic Systems
    (2016) Pons, Claudia Fabiana; Pérez, Gabriela Alejandra; Giandini, Roxana Silvia; Baum, Gabriel
    Robotics systems have special needs often related with their realtime nature and environmental properties. Often, control and communication paths within the system are tightly coupled to the actual physical configuration of the robot. As a consequence, these robots can only be assembled, configured, and programmed by robot experts. Traditional approaches, based on mainly writing the code without using software engineering techniques, are still used in the development process of these systems. Even when these robotic systems are successfully used, several problems can be identified and it is widely accepted that new approaches should be explored. The contribution of this research consists in delineating guidelines for the construction of robotic software systems, taking advantage of the application of the OMG standard robotic specifications which adhere to the model-driven approach MDA. Thereby the expert knowledge is captured in standard abstract models that can then be reused by other less experienced developers. In addition part of the code is automatically generated, reducing costs and improving quality.
  • Artículo
    Acceso Abierto
    Applying MDE tools to defining domain specific languages for model management
    (2013) Pérez, Gabriela Alejandra; Irazábal, Jerónimo; Pons, Claudia Fabiana; Giandini, Roxana Silvia
    In the model driven engineering (MDE), modeling languages play a central role. They range from the most generic languages such as UML, to more individual ones, called domain-specific modeling languages (DSML). These languages are used to create and manage models and must accompany them throughout their life cycle and evolution. In this paper we propose a domain-specific language for model management, to facilitate the user's task, developed with techniques and tools used in the MDE paradigm.
  • Documento de conferencia
    Acceso Abierto
    An Approach for Migrating Legacy Applications to Mobile Interfaces
    (2019) Cajas, Viviana Elizabeth; Urbieta, Matías; Rybarczyk, Yves; Rossi, Gustavo Héctor; Guevara, César
    Mobile applications changed unexpectedly people life and business models around the world. Nevertheless, there are old applications, called legacies, without adaptation to mobile devices, because this adaptation or migration have a considerable cost in dependence of software scope. Currently, most users bring constantly their smartphones and other devices with them, especially millennials. For that reason, some approaches try to solve this portabilization, generating certain improvements. However, in the majority of these solutions there is not a direct participation of users; do not consider their visual identity, analysis of feeling or mining of opinion. This paper proposes getting the behavior web application model with Markov heuristics from the widgets closeness matrix, prior to adaptation in order to include the user logic.
  • Documento de conferencia
    Acceso Abierto
    An Approach to Build P2P Web Extensions
    (2020) González, Rodolfo; Firmenich, Sergio; Fernández, Alejandro; Rossi, Gustavo Héctor; Velez, Darío
    Web extensions are currently the most frequently used mechanism for end-users to externally adapt and enrich the web. While most functionality offered by extensions runs on the browser, extensions that offer collaboration, complex computation, or massive storage rely on a centralized server. Relying on a server increases the cost of building, deploying, and maintaining web extensions (even small ones). This paper presents a novel P2P approach to build web extensions. It removes the need for a centralized server while hiding behind a framework the complexity of building P2P extensions. It uses a middleware to manage the resources offered by the browser so multiple P2P extensions can coexist, without degrading the browser's performance. This paper discusses the main challenges of building P2P web extensions, presents the approach, and shows its potential with a proof of concept.
  • Artículo
    Acceso Abierto
    Architectural and Implementation Issues for a Context-Aware Hypermedia Platform
    (2008) Challiol, Cecilia; Fortier, Andrés; Gordillo, Silvia Ethel; Rossi, Gustavo Héctor
    In this paper we present the rationale and the main components of a modular and extensible architecture for building and deploying mobile hypermedia software. Using some simple archetypical examples we show how to provide context-aware assistance to the mobile user, as he explores the physical world. We also show that this kind of software systems poses strong requirements on supporting software (such as Web browsers) and we explain how to provide a modular software substrate to support these requirements. This paper shows how to use some simple concepts to develop complex context-aware systems, which are evolvable and easy to extend.
  • Documento de conferencia
    Acceso Abierto
    Arquitectura de microservicios distribuidos para una plataforma que orquesta actividades orientadas a la recolección y análisis de datos, con intervención humana
    (2020) Arcidiacono, José; Lliteras, Alejandra Beatriz; Bazán, Patricia
    Este trabajo presenta la arquitectura distribuida y basada en micro-servicios, definida para dar soporte a una plataforma para generar y reusar workflows de actividades de recolección de datos, que involucren la intervención humana, y cuya ejecución se realiza desde una aplicación móvil. Tanto la arquitectura como la plataforma conforman la solución propuesta como Tesina de Grado realizada y dirigida por las autoras de este trabajo, siendo el foco principal únicamente la arquitectura sin abordar detalles de la plataforma. Se presentan también las características principales de la recolección de datos con intervención humana.
  • Documento de conferencia
    Acceso Abierto
    Una arquitectura para manejar datos continuos en SIG
    (1999) Gordillo, Silvia Ethel; Polasek, Luis; Zambrano Polo y La Borda, Arturo Federico
    Las aplicaciones geográficas en muchos casos implican la definición y manipulación de información continua. Esto es de suma relevancia en áreas como meteorología y aplicaciones ambientales. Los sistemas de información geográfica carecen de herramientas que permitan el uso de este tipo de información, lo que muchas veces impide contar con un análisis completo. En este trabajo se describe una arquitectura orientada a objetos que permite el diseño y manipulación de datos continuos.
  • Artículo
    Acceso Abierto
    Artificial Intelligence techniques based on the integration of symbolic logic and deep neural networks: A systematic review of the literature
    (2022) Negro, Pablo; Pons, Claudia Fabiana
    Artificial Intelligence is tackled from two predominant but very different approaches: symbolic Artificial Intelligence, which is inspired by mathematical logic and is based on the manipulation of abstract linguistic representations, and non-symbolic Artificial Intelligence, which focuses on the construction of predictive mathematical models from large sample data sets. Significantly, the shortcomings of each of these approaches align with the strengths of the other, suggesting that an integration between them would be beneficial. A successful synthesis of symbolic and non-symbolic artificial intelligence would give us the advantages of both worlds. This work aims to identify and classify solutions and architectures that use applied Artificial Intelligence techniques, based on the integration of symbolic and non-symbolic logic (particularly machine learning with artificial neural networks), to provide a comprehensive, exhaustive and organized vision of the solutions available in the literature, making them the subject of a carefully designed and implemented SLR (Systematic Literature Review). The resulting technologies are discussed and evaluated from both perspectives: symbolic and nonsymbolic Artificial Intelligence. The PICOC method (Population, Intervention, Comparison, Outputs, Context) plus Limits, which determine the scope of the search, has been used to define the research questions and analyze the results. From a total of 65 candidate studies found, 24 articles (37%) relevant to this study were selected. Each study also focuses on different application domains such as intelligent agents, image classification, theorem provers, cyber-security, image interpretation, mathematics, medicine, robotics and general application. Through the analysis of the selected works, it was possible to classify, organize and explain the different ways in which the deficiencies of non-symbolic Artificial Intelligence are addressed by proposals based on symbolic logic. The study also determined in which stages of the development process said proposals are applied. In addition, the study made it possible to determine which are the logic tools that are preferably applied, for each area and each domain. Although no clear architectural pattern has been found, efforts to find a general-purpose model that combines both worlds are driving trends and research efforts.