Demetrio Arturo Ovalle

• Full Professor
• Professor (Full) at National University of Colombia

The aim of this paper is to propose and validate a model of a collaborative serious game that improves teamwork interactions and that encourages student participation. The serious game proposes a gamification approach to assess knowledge of students working in teams and to identify cognitive failures. In order to validate the proposed model, a seri...

One of the main challenges for autonomous learning in virtual environments is finding the right material that fits students’ needs and supports their learning process. Personalized recommender systems partially solve this problem by suggesting online educational resources to students based on their preferences. However, in educational environments...

A serious game can be defined as an e-learning system that aims to motivate and entertain students while achieving learning objectives related to problem solving, specific topics, or skills development, always focused on improving learning. The aim of this paper is to offer methodological guidelines to build collaborative serious games based on int...

Currently, healthcare is a crucial issue for the entire population, especially for individuals who suffer from a chronic disease such as hypertension or diabetes. However, this care is carried out in medical centers, limiting the scope of health professionals. In fact, some monitoring, early warning processes, and health supporting that are not pre...

Artificial intelligence and especially Multi-Agent systems play a very important role within the technologies that have been applied to improve learning since they seek for the personalization and automation of this process. The literature reports important works, most of them focused on the instructional process or addressed to the virtual educati...

The assessment phase plays a very important role during the students’ teaching-learning processes since from this phase the knowledge acquired by them are validated and the shortcomings and/or strengths from students are detected. However, to do so, the questions selection made by the teacher or the learning platform does not always respond to the...

The objective of this paper is to present a system of process integration, based on contextual information, applying to a case study related to the admission to graduate programs in a public university. It proposes a methodology based on phases, which mainly seek the capture, analysis and grouping of processes from semantic and syntactic matching....

A graphical interface model that adapts itself to the user cognitive preferences and that is able to recommend learning objects (LOs) is proposed. The proposal considers the Methontology methodology, which allows representing the knowledge of the domain based on ontologies. In addition, the Prometheus methodology is used for designing the LOs multi...

The aim of this paper is to propose and validate a model based on the integration of several artificial intelligence techniques, such as ontologies and intelligent software agents in order to face problems that still persist in collaborative learning. The methodology employed includes a knowledge representation based on an ontological model, which...

The concept of distributed generation and renewable energy has increased the need for using Smartgrids which are electric micro-grids having intelligent characteristics that provide autonomy to the system not only to improve their operation but also to make it easier for users their management. The aim of this paper is to propose a fuzzy-based Mult...

La fase de evaluación desempeña un rol muy importante durante el proceso de enseñanza-aprendizaje de los estudiantes ya que a partir de esta se validan los conocimientos adquiridos por ellos y se descubren falencias y/o fortalezas. Sin embargo, la selección de preguntas por parte del profesor o de la plataforma de aprendizaje no responde a las nece...

La aplicación adecuada de las TIC (Tecnologías de la Información y Comunicación) para el aprendizaje de personas con discapacidad física exige estudios dirigidos a la adaptación de interfaces. El control sobre el diseño e implementación de dispositivos de entrada contribuiría al desarrollo de interfaces capaces de atender las necesidades en el cont...

Personal assistants are focused on helping users with various tasks in the daily management, as they anticipate their needs and learn with their interaction. An intelligent personal assistant is a software agent that can perform actions requested by a user and can access to information from remote sources, based on requirements or user profile. Mor...

Resumen El objetivo de este artículo es proponer un mecanismo de comparación de atributos contextuales sobre modelos de procesos de negocio utilizando técnicas de agrupamiento. La comparación se basa en análisis sintáctico y semántico de los procesos, tanto de sus elementos como de la información que se relaciona con el dominio de ejecución. La met...

Contexto: existen muchos repositorios de recursos educativos que permiten buscar y recuperar objetos de aprendizaje, de esta forma se puede tener acceso a millones de recursos educativos; sin embargo, se requiere mejorar la presentación, visualización y satisfacción de uso de dichos objetos de aprendizaje, teniendo en cuenta las preferencias y nece...

Los Objetos de Aprendizaje (OAs) son recursos digitales utilizados para apoyar los procesos de enseñanza y aprendizaje almacenados en Repositorios de OAs (ROAS), facilitando su búsqueda y recuperación. Sin embargo, en la mayoría de los casos es difícil determinar la calidad de estos recursos, por ello en este trabajo se presenta un modelo por capas...

Contexto: existen muchos repositorios de recursos educativos que permiten buscar y recuperar objetos de aprendizaje, de esta forma se puede tener acceso a millones de recursos educativos; sin embargo, se requiere mejorar la presentación, visualización y satisfacción de uso de dichos objetos de aprendizaje, teniendo en cuenta las preferencias y nece...

A great deal of interest is now being given to the use of serious games to improve specific issues of learning processes at different levels of education both in primary and secondary schools as well as in universities worldwide. The aim of this paper is to propose a serious game model supported by mobile computing for improving learning of specifi...

Group formation is one of the key stages in a Computer Supported Collaborative Learning (CSCL) process since each organized group should be composed of adequate individuals that perform good interaction and contribute to the group’s goals. Team members use their capabilities and strengths always in order to achieve satisfactory learning results fro...

A great deal of interest is now being given to the use of serious games to improve specific issues of learning processes at different levels of education both in primary and secondary schools as well as in universities worldwide. The aim of this paper is to propose a serious game model supported by mobile computing for improving learning of specifi...

Group formation is one of the key stages in a Computer Supported Collaborative Learning (CSCL) process since each organized group should be composed of adequate individuals that perform good interaction and contribute to the group’s goals. Team members use their capabilities and strengths always in order to achieve satisfactory learning results fro...

Currently, there are not effective mechanisms in virtual learning environments, that allow an early detection and diagnosis of learning failures. Incorporating this kind of elements into virtual learning environments could improve learning since the diagnosis provided by the system can design an action plan that contributes to the strengthening of...

Currently, there are not effective mechanisms in virtual learning environments, that allow an early detection and diagnosis of learning failures. Incorporating this kind of elements into virtual learning environments could improve learning since the diagnosis provided by the system can design an action plan that contributes to the strengthening of...

The Business Process integration focuses on consolidation of process models in order to changes propagation. The aim of this paper is to propose a constraint-based contextual approach for business process integration. The context model description is through contextual situations represented by a constraint set as well as an inference mechanism. In...

Resumen Contexto: existen muchos repositorios de recursos educativos que permiten buscar y recuperar objetos de aprendizaje, de esta forma se puede tener acceso a millones de recursos educativos; sin embargo, se requiere mejorar la presentación, visualización y sa-tisfacción de uso de dichos objetos de aprendizaje, teniendo en cuenta las preferenci...

In a face-class, where the student group is heterogeneous, it is necessary to select the most appropriate educational resources that support learning for all. In this sense, multi-agent system (MAS) can be used to simulate the features of the students in the group, including their learning style, in order to help the professor find the best resourc...

In the last decades, some useful contributions have occurred to human-computer interfaces and e-learning system developments such as adaptation, personalization, ontological modeling, as well as, learning object repositories. The aim of this paper is to present the advantages of integrating ontologies as knowledge representation scheme in order to...

In a face-class, where the student group is heterogeneous, it is necessary to select the most appropriate educational resources that support learning for all. In this sense, multi-agent system (MAS) can be used to simulate the features of the students in the group, including their learning style, in order to help the professor find the best resourc...

Computer Supported Collaborative Learning (CSCL) is a computational approach allowing students−being organized into groups− to work together for a common goal and discuss from different points of view always seeking to improve learning processes. The context-awareness concept, which is inherent to humans when performing any learning activity, becom...

In a face-class, where the student group is heterogeneous, it is necessary to select the most appropriate educational resources that support learning for all. In this sense, multi-agent system (MAS) can be used to simulate the features of the students in the group, including their learning style, in order to help the professor find the best resourc...

Computer Supported Collaborative Learning (CSCL) is a computational approach allowing students−being organized into groups− to work together for a common goal and discuss from different points of view always seeking to improve learning processes. The context-awareness concept, which is inherent to humans when performing any learning activity, becom...

The performance evaluation of a ubiquitous e-learning multi-agent system (U-MAS) is presented. The methodology is mainly based on four axes corresponding to ontological inferences, the context-awareness services, the mobile application and the overall performance of the U-MAS using qualitative and quantitative metrics. The results obtained suggest...

El objetivo de este artículo es proponer un mecanismo de inferencia para la integración de procesos de negocio dependiente de información contextual asociada al dominio de ejecución. La metodología utilizada por el mecanismo de inferencia propuesto se compone de un modelo de contexto, formalizado a través de situaciones contextuales basadas en rest...

Resumen El objetivo de este artículo es proponer un método híbrido de recomendación adaptativa de objetos de aprendizaje, el cual debe inicialmente realizar la selección de características del perfil del estudiante que mejor lo definan. Los sistemas de recomendación híbrida de materiales educativos digitales apoyan procesos de aprendizaje virtual y...

Learning Object (LO) is a content unit being used within virtual learning environments, which -once found and retrieved- may assist students in the teaching - learning process. Such LO search and retrieval are recently supported and enhanced by data mining techniques. In this sense, clustering can be used to find groups holding similar LOs so that...

The evaluation of the quality on learning objects is an issue that has been gaining importance in the community due to the need to provide appropriate material to students to support their teaching-learning process. This paper presents a Web System for Evaluation of Learning Objects called EVALOA. This system is supported by a Multi-Agent System...

Learning Object (LO) is a content unit being used within virtual learning environments, which -once found and retrieved- may assist students in the learning process. Such LO search and retrieval are recently supported and enhanced by data mining techniques. In this sense, clustering can be used to find groups holding similar LOs so that from obtain...

Since the integration of business process variants can be affected by contextual information the aim of this paper is to propose the development of a context model for Business Process Integration that considers the propagation of process changes towards process variants of the reference model. The method used to develop such a model focuses on fol...

Educational Recommender Systems aim to provide students with search relevant results adapted to their needs or preferences and delivering those educational contents such as Learning Objects (LOs) that could be closer than expected. LOs can be defined as a digital entity involving educational design characteristics. Each LO can be used, reused, or r...

From a previous review of state of art regarding to formative e-assessment is determined that researches are mainly addressed to learning environments and intended learning outcomes. Formative type takes advantage of both, peer review and teacher feedback. Teacher feed-back when students are solving the assigned tasks has not been sufficiently explo...

Educational Recommender Systems aim to provide students with search relevant results adapted to their needs or preferences and delivering those educational contents such as Learning Objects (LOs) that could be closer than expected. LOs can be defined as a digital entity involving educational design characteristics. Each LO can be used, reused, or re...

In the last decade, some useful contributions have occurred to e-learning system development such as adaptation, ubiquity, personalization, as well as context-awareness services. The aim of this paper is to present the advantages brought by the integration of ubiquitous computing along with distributed artificial intelligence techniques in order to...

Since the integration of business process variants can be affected by contextual information the aim of this paper is to propose the development of a context model for Business Process Integration that considers the propagation of process changes towards process variants of the reference model. The method used to develop such a model focuses on fol...

During the last decade, learning management systems (LMS) have become a useful tool for students and teachers seeking to assist virtual learning processes. The aim of this paper is to present a proposal for the design and integration of a learning companion agent within the Claroline LMS intended to foster collaboration, assistance, support, and mo...

The context-awareness concept, which is inherent to humans when performing any learning activity, becomes the main component for monitoring activities in virtual learning environments. The aim of this paper is to incorporate context-awareness services within an adaptive ubiquitous Multi-Agent System (U-MAS) learning environment intended for instruc...

Regarding the educational contexts based on e-learning, Learning Objects (LOs) have arisen as a new conceptual model to organize the content. Thus, it is necessary to analyze the potential impact of LOs on knowledge appropriation processes using the quality concept. In this case, quality is understood as the level of relevance of the educational re...

The current growth of information and communication technologies has promoted the development of tools in order to facilitate the process of e-recruitment; benefiting both recruiters as jobseekers. This paper presents a case-based Multi-Agent System which aims at integrating an ontology in order to select and to recommend adapted jobseekers to the...

The current growth of information and communication technologies has promoted the development of tools in order to facilitate the process of e-recruitment; benefiting both recruiters as jobseekers. This paper presents a case-based Multi-Agent System which aims at integrating an ontology in order to select and to recommend adapted jobseekers to the...

The current growth of information and communication technologies has promoted the development of tools in order to facilitate the process of e-recruitment; benefiting both recruiters as jobseekers. This paper presents a case-based Multi-Agent System which aims at integrating an ontology in order to select and to recommend adapted jobseekers to the...

The context-awareness concept, which is inherent to humans when performing any learning activity, becomes the main component for monitoring activities in virtual learning environments. The aim of this paper is to incorporate context-awareness services within an adaptive ubiquitous Multi-Agent System (U-MAS) learning environment intended for instruc...

Las federaciones de repositorios de objetos de aprendizaje aumentan las posibilidades de localizar, acceder, archivar y reutilizar contenido educativo que brindan apoyo a los procesos de enseñanza y aprendizaje, descritos por sus metadatos y que se encuentran almacenados en reposi- torios que posibilitan su búsqueda y recuperación. Las federaciones...

Resumen La educación virtual se ha masificado pero requiere personalizar los contenidos y actividades utilizados en procesos de enseñanza-aprendizaje, debido a la diferencia en la forma de aprender de cada individuo. El uso de ontologías contribuye a la esquematización de conceptos y al intercambio de información, con el fin de inferir nuevo conoci...

La educación virtual se ha masificado pero requiere personalizar los contenidos y actividades utilizados en procesos de enseñanza-aprendizaje, debido a la diferencia en la forma de aprender de cada individuo. El uso de ontologías contribuye a la esquematización de conceptos y al intercambio de información, con el fin de inferir nuevo conocimiento e...

In this paper, an Ambient Intelligence (AmI) architecture for devising and implementing a smart laboratory in a university is presented. The architecture relies on a novel meta- model that abstracts the laboratory ambient using a context model, an adaptation model, an end-user model, and a domain model. Thus, the architecture offers, to the end...

Se propone una aproximación metodológica de la integración de procesos de negocio, a través de fases, herramientas y técnicas, utilizando la información relacionada con el contexto y eventos históricos. Se pretende ofrecer una solución bastante genérica para ser aplicada en diversos dominios de ejecución. El método empleado para alcanzar el objetiv...

Los Objetos de Aprendizaje (OA), como unidades de contenido educativo y como recursos reutilizables permiten disponer de la información para ser utilizada en ambientes virtuales de aprendizaje y para acceder a ellos se debe contar con mecanismos de recuperación y selección permitiendo el apoyo al proceso de enseñanza-aprendizaje de un estudiante en...

Adaptation is a desirable feature in on-line courses which allows for the consideration of students particular characteristics and needs. However, it is not common for teachers to embrace technologies related to this feature. This phenomenon may be mainly attributed to: a) unawareness of appropriate authoring tools, and/or b) resistance to their us...

La adaptación es una funcionalidad deseable de los cursos en línea pues, permite la consideración de las necesidades y características propias de cada estudiante. Pese a esto, no es común que los profesores adopten tecnologías relacionadas con esta funcionalidad, lo cual se debe principalmente a: a) el desconocimiento de herramientas de autor aprop...

This paper presents an approach to the concept of business process integration from a reference process variants and the different scenarios that lead to their generation. In addition, a general method is presented for process integration, whose propose is to propagate structural changes from the reference model through the generated variants. This...

Los repositorios de Objetos de Aprendizaje (OA) son importantes para la construcción de contenidos educativos y deben facilitar los procesos de búsqueda, recuperación y organización de OA con el fin de atender objetivos educativos. Sin embargo, estos procesos demandan tiempo y no proveen los resultados esperados; por ello, el objetivo de este artíc...

Conceptualization of context aware business process integration based on variants – SBSI2014

Learning objects (LOs) repositories are important in building educational content and should allow search, retrieval and composition processes to be successfully developed to reach educational goals. However, such processes require so much time-consuming and not always provide the desired results. Thus, the aim of this paper is to propose a model f...

The need for ubiquitous systems that allow access to computer systems from anywhere at anytime and the massive use of the Internet has prompted the creation of e-learning systems that can be accessed from mobile smart phones, PDA, or tablets, taking advantage of the current growth of mobile technologies. The aim of this chapter is to present the ad...

El objetivo de este capítulo es entonces extender las ontologías actuales que se centran en diseñar una descripción semántica de los estándares de metadatos de los OA actuales, a un modelo que considere una nueva ontología en donde esté presente la estructura de los cursos virtuales adaptativos (CVA).Lo anterior, en pro de inferir conocimiento a pa...

INTRODUCCIÓN Un Proceso de Negocio o BP (Business Process) se define como la descripción lógica de una secuencia de actividades relacionadas directamente con el negocio, que una vez modeladas y automatizadas permiten agregar a sus productos o servicios [1]. Un modelo de proceso es la descripción abstracta de un proceso de negocio, donde se tiene en...

The aim of this paper is to propose a customized recommendation model of educational resources for virtual courses that incorporates the benefits of ubiquitous computing and intelligent agents. This model is intended to provide relevant and personalized information to students about their virtual courses planning, online assessment, search and retr...

En la actualidad los objetos de aprendizaje OA, que son recursos educativos cuya característica distintiva son los metadatos descriptivos, han tomado gran importancia para apoyar los procesos de enseñanza aprendizaje de estudiantes que cada día tienen acceso a más información; la dificultad al recuperar los OA se encuentra al especificar las pa...

Educational digital resources stored in repositories require metadata in order to describe them properly, and are fundamental for searching and retrieval processes. The aim of this paper is to present an approach for the calculation of metrics that determine the quality level of labeling digital resources, specifically Learning Objects (LOs). We de...

The use of artificial intelligence techniques has been efficiently employed not only for problem solving but also for modeling, simulation, and development of complex systems. The construction of virtual courses is a complex task since such computational systems must adapt their behavior to the student’s characteristics in a customized way. Thus, t...

metodológica a la integración de procesos de negocio, en la industria del Café, sensible y la industria del Café, sensible y adaptable al contexto

Los recursos educativos almacenados en repositorios digitales requieren de metada-tos que los describan adecuadamente y son fundamentales en procesos de búsqueda y recuperación. El objetivo de este artículo es realizar una aproximación al cálculo y evaluación de métricas que permitan determinar el nivel de calidad del etiquetado de recursos digital...

Los Objetos de Aprendizaje (OA) se distinguen de los tradicionales recursos educativos por su disponibilidad en repositorios. La conformación de federaciones de repositorios de objetos de aprendizaje es una tendencia mundial importante ya que se busca reutilizar recursos educativos para apoyar los procesos de enseñanza aprendizaje. Ante la dif...

The development of e-learning systems serving as instructors in the marketing research field for new entrepreneurs is an alternative that allows a better use of resources, a broader knowledge of the market, and a creative activity support in the discovery of new potential niche markets. Thus, the purpose of this paper is to improve the entrepreneur...

Availability and correspondence with expectations are desired characteristics in order to guarantee the quality of Learning Objects (LOs) retrieved from LO repositories during the search process. The administrators of these repositories have the responsibility of ensuring the quality of LOs after applying their corresponding evaluation. The impleme...

Despite recent progress in e-health system development, there are still significant problems in health service recommendation processes such as searching for healthcare specialists or medical appointments in hospitals and healthcare centers. Also, there are not so many e-health user-centered systems that provide assistance and good recommendations...

The development of e-learning systems serving as instructors in the marketing research field for new entrepreneurs is an alternative that allows a better use of resources, a broader knowledge of the market, and a creative activity support in the discovery of new potential niche markets. Thus, the purpose of this paper is to improve the entrepreneur...

Despite recent progress in e-health system development, there are still significant problems in health service recommendation processes such as searching for healthcare specialists or medical appointments in hospitals and healthcare centers. Also, there are not so many e-health user-centered systems that provide assistance and good recommendations...

Learning Objects (LOs) are distinguished from traditional educational resources for their easy and quickly availability through Web-based repositories, from which they are accessed through their metadata. In addition, having a user profile allows an educational recommender system to help the learner to find the most relevant LOs based on their need...

Intelligent software agents can be a valuable tool to model and implement wireless sensor networks (WSN). Such networks have a set of inherent limitations, such as energy, limited resources, limited computing, and unreliable wireless links. These limitations make the design and development of intelligent software agents and multi-agent systems in s...

Nowadays there are many repositories that allow searching and retrieval of learning objects. However, these selected learning objects in many cases are not adequate to student’s profiles. Hence, the construction of adaptive e-learning recommender systems considering student cognitive characteristics requires customized searches to support teaching-...

The possibilities of accessing learning objects (LO) from different devices require to analyze not only the specific conditions of the user but the metadata of the educational resources stored. The type of device from which the search is made has some functional constraints concerning the way of displaying information and possible interaction. This...

Robotic sensor networks are used to monitor physical environments that require measurement of physical variables in real time to prevent disaster by detecting and locating anomalies. In this paper we propose a model based on intelligent agents to control a robotic sensor network that detects and traks the perimeter of anomalies in a physical enviro...

Resumen Si bien es cierto que la educación asistida por computador tiene cada vez más aceptación gracias a la creación y divulgación exitosa de diversos sistemas para este fin, muchos interesados en unirse a esta ola no lo hacen bien sea por desconocimiento de las alternativas que existen o porque se sienten abrumados por la cantidad y variedad de...

Due to the importance of creating alternative mechanisms to generate know-how on potential markets for new entrepreneurs this paper proposes an agent-based learning environment to help them learning market research strategies within new businesses. An instructor agent, serving as a learning assistant within the MAS environment guides new entreprene...

This paper aims at presenting a planning model for adapting the behavior of virtual courses based on artificial intelligence techniques, in particular using not only a multi-agent system approach. but also artificial intelligence planning methods. The design and implementation of the system by means of a pedagogical multi-agent approach and the def...

The Wireless Sensor Networks(WSN) are defined as a set of nodes with limited constraints of processing, storage and transmission. Nowadays, most WSN proposals require using software agents to bring new capabilities to the network, such as autonomy, control and intelligence. However, a deployment of agents over a WSN imposes higher resources consump...

Las Redes de Sensores Inalámbricas o WSN (por su acrónimo en inglés Wireless Sensor Networks), en general, son redes inalámbricas que se componen de centenares o miles de dispositivos autónomos y compactos llamados nodos sensores. Las WSN son un área emergente de los sistemas embebidos que involucran aplicaciones de gran escala, incluyendo monitore...

The technological development achieved in each of the epochs of the human history has changed the means of production, communication, transportation and education. There are many results because of the incorporation of technology on education, including remote laboratories, online courses, and educational robotics. In recent years, the latter has b...

This paper presents an adaptive assessment system that adapts itself to the specific conditions of each student, modeled by means of a Multi-Agent Sys-tems (MAS). This approach implies to see the monitoring and assessment as a teaching-learning tool and not only as an measuring mechanism. The Artificial Intelligence field, in particular the MAS app...

Resumen Para mejorar los procesos de enseñanza / aprendizaje de los estudiantes se han desarrollado sistemas computarizados que permiten adaptar los cursos virtuales según los perfiles de los estudiantes. Existen diversos tipos de adaptación: adaptación de planes instruccional, adaptación de evaluaciones y adaptación de contenidos educativos. En es...

El propósito principal de este artículo es describir cómo administrar objetos de aprendizaje en un curso virtual con características de Sistema Tutorial Inteligente, con el fin de brindarle tanto a profesores como estudiantes recursos adaptados a sus intereses. Dicha administración se centra principalmente en dos tareas: la recuperación y la recome...