Rosa Maria Vicari

• PhD Eng Eletrotécnica e Computadores, 1990 Uni Coi
• Professor at Federal University of Rio Grande do Sul

O CIEB Notas Técnicas é uma série que contém análises sobre temas atuais relacionados à inovação na educação pública brasileira. São reflexões e conceitos gerados pela equipe do CIEB ao longo do desenvolvimento de projetos, e compartilhados com o intuito de contribuir para o debate público. Esta Nota Técnica é resultado do trabalho do CIEB em parc...

Esta Nota Técnica é resultado do trabalho do CIEB em parceria com os pesquisadores Dr. Lucas Mizusaki, Dra. Rosa Maria Vicari, Dr. Christian Brackmann e Dr. Cristiano Galafassi para mapear a utilização de inteligência artificial generativa (genIA) na gestão de secretarias estaduais. O estudo baseia-se na análise da realidade de cinco secretarias es...

The growing popularization of Artificial Intelligence (AI) technologies to support most different human activities, including education, has been a subject of research and concern among researchers in the area. In this sense, how to translate ethical principles into computational models; how to avoid biases; how to make intelligent systems accounta...

Due to the increasing use of Artificial Intelligence (AI) in Education, as well as in other areas, different ethical questions have been raised in recent years. Despite this, only a few practical proposals related to ethics in AI for Education can be found in scientific databases. For this reason, aiming to help fulfill this gap, this work proposes...

O projeto Capacitação em IA para o Desenvolvimento do Pensamento Computacional nas Escolas Públicas do RS (CIARS). Trata-se de uma iniciativa pública de extensão universitária da Universidade Federal do Rio Grande do Sul (UFRGS) em parceria com o Instituto Federal Farroupilha (IFFAR), cujo objetivo é pesquisar e desenvolver materiais para se trabal...

As Tecnologias Digitais de Informação e Comunicação (TDIC) têm oportunizado melhorias e aumento na oferta de Educação a Distância (EaD). A Aprendizagem Baseada em Problemas (PBL) vem se mostrando efetiva, principalmente por propiciar a aproximação do estudante com situações reais vividas por profissionais, característica importante para a Educação...

The digital learning transformation brings the extension of the traditional libraries to online repositories. Learning object repositories are employed to deliver several functionalities related to the learning object’s lifecycle. However, these educational resources usually are not described effectively, lacking, for example, educational metadata...

This work presents the intelligent tutoring system, EvoLogic, developed to assist students in problems of natural production in propositional logic. EvoLogic has been modeled as a multiagent system composed of three autonomous agents: interface, pedagogical and specialist agents. It supports pedagogical strategies inspired by the theory of example-...

Attach metadata to digital objects effectively underlies the development of high-quality services in systems. This work explores how the metadata of a learning object represented as linked data, in a brand new repository, can be a facilitator to a more complete catalog and search with contents recommendations. The proposed approach underlies in DBp...

Current literature shows the lack of learning object repositories exclusively related to environmental education and that there is no predominant software. This paper presents Re-Mar, a marine learning object repository based on open source software. Re-Mar is a part of an effort to promote ocean literacy through educational content for students an...

As the area of artificial intelligence (AI) evolves and reaches new spaces, showing itself capable of promoting real changes in the way people interact, solve problems and make decisions, it becomes more urgent to make it predictable, responsible, and reliable. Thus, solutions for the values alignment (VA) in AI have been proposed in recent years....

While Artificial intelligence technologies continue to proliferate in all areas of contemporary life, researchers are looking for ways to make them safe for users. In the teaching-learning context, this is a trickier problem because it must be clear which principles or ethical frameworks are guiding processes supported by artificial intelligence. A...

RESUMO Após 64 anos de seu surgimento, a Inteligência Artificial (IA) enfrenta o complexo e o incerto dos nossos dias. Nesse período de sua existência, podem-se destacar dois “invernos” (1980 e 1993) em que as aplicações eram interessantes, mas a IA não conseguiu dar respostas adequadas: na compreensão da linguagem e no diagnóstico médico. Por outr...

In this paper, we present a review on the use of ontologies in learning object repositories systems for searching and suggestion purposes, considering its adoption for the seaThings project that aims to promote the ocean literacy. We also describe the use case of the Cognix system and Agent-based Learning Objects - OBAA metadata standard for learni...

Encontrar soluções para aproximar professor e aluno em ambientes e-learning como o Moodle e diminuir os índices de evasão nos cursos é um desafio enorme e potencializado com a pandemia de SARS-COV-2. Para isso, torna-se necessário encontrar soluções inteligentes que forneçam reflexão, interação, motivação, acompanhem o processo de aprendizagem do a...

Permitir ao professor autonomia sobre a construção de sistemas para disponibilizar conteúdo e apoio aos alunos, é muito importante para aprimorar processos educacionais. Para que isto ocorra, é necessário oferecer capacitações que atendam os professores de maneira prática e objetiva. Este artigo descreve a criação, aplicação e avaliação de um curso...

This article presents the cognitive model of the EvoLogic Intelligent Tutoring System, developed to assist in the teaching-learning process of Natural Deduction in Propositional Logic. EvoLogic consists of 3 agents, among which, the Pedagogical agent (treated here as the student model) and the Specialist agent (based on a Genetic Algorithm) compose...

Este artigo apresenta o modelo cognitivo do Sistema Tutor Inteligente EvoLogic, desenvolvido para auxiliar no processo de ensino-aprendizagem da Dedução Natural na Lógica Proposicional. O EvoLogic consiste em 3 agentes, entre os quais o agente Pedagógico (tratado aqui como o modelo do aluno) e o agente Especialista (baseado em um algoritmo genético...

The present article aims to present the Heraclito environment that has in the Logical Studies and Exercises Logic (LOGOS) an important tool. The Heraclito environment assists students in solving various types of Logic exercises and provides the LOGOS Electronic Notebook to create and edit formulas, truth tables and proofs of Propositional Logic. Th...

Intelligent Tutoring Systems (ITS) are technological resources widely used in teaching-learning processes, and their studies are directed, mainly, at distance learning. In this sense, the purpose of this work is the redesign of a Student Model agent, in the context of an ITS applied to the teaching of Natural Deduction in Propositional Logic (NDPL)...

O presente artigo propõe o uso do N'SAMAT, em aula, para auxiliar na melhoria do aproveitamento dos alunos da 2 a classe do ensino básico na aprendizagem de Aritmética (o que corresponde ao ensino fundamental series iniciais, no Brasil). Para concretização do estudo, foi adotado um plano quase-experimental, associado a uma pesquisa quali-quantitati...

In communities of practice (CoP), learning occurs through constant interactions of their participants. The social aspect is fundamental for the construction of knowledge. This work uses semantic web technologies and ontologies to structure and represent the interactions of CoPs participants around a dynamic user profile. This user profile describes...

In communities of practice (CoP), learning occurs through constant interactions of their participants. The social aspect is funda- mental for the construction of knowledge. This work uses semantic web technologies and ontologies to structure and represent the interactions of CoPs participants around a dynamic user profile. This user profile de- scr...

The work shows the proposal to create a Latin-American Research Network related to Learning Analytics, initially made up of researchers from 13 Higher Education Institutions from 7 Latin American countries. The Network has started with collaboration agreements and the formation of lines of communication, where we have talked about the progress and...

In this paper, we present a study about students’ behavior based on activity logs in Moodle (an online Learning Management System LMS) analyzing three characteristics: online time (separated by its location), tasks delivered and support material views. We relate these three characteristics with the students’ performance (i.e. success, fail and drop...

The present paper aims to present the Heráclito environment. The Heráclito is an Intelligent Tutoring System focused on teaching Logic and assists students in solving exercises that ask them to calculate the logical value of a formula, going through truth table exercises, and even doing argument-proof exercises through rules of Natural Deduction. I...

Technology has increasingly permeated the educational context making the use of learning objects (LOs) very popular. LOs need to be stored and cataloged so they can be located and retrieved in an efficient manner by both students and teachers. Furthermore, the objects collected in different repositories must be examined individually in order to sel...

O presente trabalho de natureza descritiva, relata uma experiência vivida com os alunos da décima segunda classe de uma Escola Privada do Ensino Médio em Moçambique. O trabalho foi desenvolvido durante as aulas de Matemática por uma semana, numa fase em que o professor da disciplina iria introduzir os conceitos de Progressão Aritmética e Progressão...

Resumo Metadata is broadly used to describe learning objects and its standards have been developed to improve interoperability. With the current Web extension by the Semantic Web, learning object metadata has been migrating from XML-based metadata standards to semantic metadata standards. This work explores XSLT to provide a solution for this tran...

El artículo muestra el desarrollo y evaluación del Cuestionario Difuso de Estilos de Aprendizaje FuzzyILS, basado en el Modelo de Estilos de Aprendizaje de Felder y Silverman, y como alternativa difusa al Cuestionario ILS creado por Felder y Soloman. La propuesta vino de trabajos previos de los autores, donde crearon un método para el desarrollo de...

This research presents a method to describe LO as Semantic Web Ontologies. The proposed method divides the Ontologies among three layers. The first is composed by the knowledge domain, the second by the objects that are part of this domain and the third are used for reasoning. As a practical example, it is presented the description of a subset of t...

Sociability, autonomy and intelligence are becoming important properties of new mobile and web applications. Sociability is the main reason for the development of these new applications, while autonomy and intelligence are necessary skills to support sociability’s requirements. This is also true in the educational software area, where educational a...

The paper shows the development of a module for Moodle, used to manage the knowledge involved in the process of teaching and learning, that includes Lessons Learned, Yellow Pages and FAQs, in addition to that we developed a Knowledge-Based Monitor which performs management of the students’ activities. To evaluate the module developed, we used three...

This research presents a method to describe Learning Objects as Semantic Web compatible Ontologies. The proposed method divides the Ontologies among three layers. The first is composed by the knowledge domain, the second by the LOs and their relations, and the third is responsible for knowledge inference and reasoning. As study case, it is presente...

SCALA system is an effort to integrate Internet of Things (IoT) and Social Computing to provide an alternative communication system to improve literacy of people with autism. After introducing SCALA, this work presents a review on the state of the art about the application of IoT technologies to Autism, carried out in five international scientific...

One of the topics that generate interest in the community is the possibility of relating the characteristics of students with the type of material that best suits the student's learning style, interests, and preferences. This topic holds most importance in systems that perform automatic selection of materials and educational activities and thus imp...

This work deals with the development of an interface to control a smart conference room using passive BCI (Brain Computer Interface). It compares a genetic algorithm developed in a previous project to control the smart conference room with a random control algorithm. The system controls features of the conference room such as air conditioner, light...

O artigo mostra o desenvolvimento de um Objeto de Aprendizagem baseado em um mascote virtual (PET), chamado CARNAVAL, para o aprendizado de lingua portuguesa brasileira via dispositivos moveis. O aplicativo tem sua dinâmica desenvolvida atraves de um jogo (game learning) que propoe ao usuario a tarefa de cuidar de um mascote virtual. A implementaca...

O presente artigo tem como objetivo apresentar o editor de provas do sistema Heraclito. O Heraclito e um Sistema Tutor Inteligente (STI) voltado para o ensino de logica proposicional para alunos de graduacao em Computacao. Seu editor de provas tem como principal funcionalidade auxiliar na elaboracao de provas de argumentos formais por meio das regr...

The work shows the development of a module for Moodle, used to manage the knowledge Involved in the process of teaching and learning, where interact Smartphones, Tablets, Wearables and LMS Moodle, as idea of Internet of Things. The module includes was Lessons Learned, Yellow Pages and FAQs, also the developed the Monitor Agent of student activities...

This paper presents an affective algorithm to support purchasing decisions in e-commerce environments. The literature associated with decision-making theory includes the affective dimension as a clear human decision factor. In the same sense, several models and proposals of consumer behavior consider both affective and social dimensions as very imp...

The present article has the objective to show some preliminary results of new Web interface developed to multi-agent system named Heraclito. The Heraclito is one Intelligent Tutoring System (ITS) who has as objective teach propositional logic to undergraduate students of Computer. This version was developed with Test Driven Development (TDD) techni...

One of the topics that generate interest in the community is the possibility to relate the characteristics of students with the type of material that best suits your learning style, interests and preferences. This topic holds most importance in systems that perform automatic selection of materials and educational activities and thus improving the u...

Dynamic Adaptive Activity Planning is a technique to create plans in which activities are the best suited for particular users and their context. This paper presents an architecture, called ASHYI, for dynamic adaptive activity planning, and ASHYI-EDU, an application of ASHYI for the educational domain. ASHYI-EDU can automatically create a learning...

Activity planning is an essential element in the teaching-learning process, since it can ensure that adequate activities are utilized to convey the information to students. The common practice in course planning is that the teacher selects the same set of activities for every student in the classroom. However this does not address the students' het...

A plan is an organized set of activities that are performed to achieve certain goals. Changing environments have multiple requirements: users have diverse needs and preferences, the context may be different for each user, depending on the time, location, and access devices (e.g., mobile devices, desktop computers). Above all, these types of environ...

Nowadays there is a huge amount of information available in so many places. It is a hard task to decide where and what to look at, therefore a little guidance would be helpful. Towards this direction, this paper proposes a framework that uses ontologies to suggest relevant topics. This framework is based on a cognitive theory called Relevance Theor...

This paper proposes an editor for Learning Object Metadata compatible with the Semantic Web. This tool uses two base ontologies, OBAA and VideoAula to provide the semantics to describe learning objects. These ontologies are the core for a tool to verify the consistency of the user-input data and realize inferences about the described information. F...

Resumo The main hypothesis of the present work is that a learning object management platform, integrated with digital learning environments and able to recognize the semantics of its learning objects is the most appropriate content management system for educational purposes nowadays. Based on several years of accumulated experience working with th...

Este trabajo explora el uso de técnicas de Web semántica como una alternativa a los tradicionales sistemas de recomendación educativos. El modelo propuesto explora el uso de la información de los metadatos de objetos de aprendizaje y el perfil académico de los alumnos, descritos a través de una ontología de dominio para proporcionar una estructura...

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...

Logic is a fundamental discipline for Computer Science, and Engineering students. However, despite its importance, there are several problems with the teaching of this discipline in graduate courses. Trying to improve this situation, we designed, and developed a new tutoring system for Logic, called Heraclito. This system implements a dynamic and a...

Within the educational context, researchers have focused on applying agent and ontology-based technologies to improve the processes of localization, retrieval, cataloging, and reuse of learning objects. This scenario highlights semantic heterogeneity issues, creating an excellent opportunity to evaluate, and explore ontology alignment techniques ab...

Relevance is a key concept nowadays. We need to search for relevant information but we do not want to spend much of our time doing it. Most times it is hard to choose what is worth looking at. To help it, this paper proposes a framework that uses ontologies to suggest relevant topics. This framework is based on a cognitive theory called Relevance T...

Este trabajo explora el uso de técnicas de Web semántica como una alternativa a los tradicionales sistemas de recomendación educativos. El modelo propuesto explora el uso de la información de los metadatos de objetos de aprendizaje y el perfil académico de los alumnos, descritos a través de una ontología de dominio para proporcionar una estructura...

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...

This article presents an excerpt of the research project SCALA (Alternative Communication System for Literacy of Children with Autism). Herein, we focus on teacher education of professionals working with nonverbal Autism Spectrum Disorder (ASD) subjects so as to foster their sociocognitive development. From an overall view of the field of Alternati...

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...

This work explores the use of Semantic Web techniques as an alternative to traditional educational recommender systems. The proposed model explores the use of Learning Object metadata information and Student academic profile described by knowledge ontologies in order to provide a knowledge structure. This knowlege is stored in an OWL ontology provi...

Bayesian BDI agents employ bayesian networks to represent uncertain knowledge within an agent’s beliefs. Although such models allow a richer belief representation, current models of bayesian BDI agents employ a rather limited strategy for desire selection, namely one based on threshold values on belief probability. Consequently, such an approach pr...

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...

This symposium was born as a research forum to present and discuss original, rigorous and significant contributions on Artificial Intelligence-based (AI) solutions—with a strong, practical logic and, preferably, with empirical applications—developed to aid the management of organizations in multiple areas, activities, processes and problem-solving;...

En este artículo se presenta la evaluación de la eficiencia de las búsquedas sobre una federación de repositorios de objetos de aprendizaje, en particular la Federação de Repositórios Educa Brasil – FEB, respecto a la velocidad de respuesta y cantidad de registros recuperados. El objetivo es determinar las bondades de esta arquitectura en las búsqu...

In this paper, it is presented the assessment of the searching performance over a federation of learning objects repositories, in particular the Federação de Repositórios Educa Brasil – FEB, with regard to the response speed and quantity of retrieved records. The aim is to determine the benefits of this structure in the centralized searches over di...

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-...

Communities of Practice (CoP) integrate people in a group in order to learn in a collaborative way. In these communities it is necessary to establish a formal and standardized representation of the interests and the knowledge that emerges from the CoP. With this scenario in mind, this paper presents a reference ontology for a user profile represent...

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...

The development of systems which adapt to the needs of student learning is a complex task. Learning involves several factors, including effective communication in a specific context. In this paper, we propose a conceptual framework to allow the integration of adaptive hypermedia in learning management systems from a cognitive-semantic perspective.

This works introduces the OBAA metadata ontology, which is an OWL ontology created to represent all metadata from IEEE-LOM standard and OBAA metadata proposal. This ontology provides the basic vocabulary of linguistic terms that agents can use to query and manipulate metadata information. The work presents main structure of the ontology, and shows...

This work presents the MILOS infrastructure. This infrastructure will implement the functionalities needed to create, manage, search, use and publish learning objects compatible with OBAA metadata proposal. MILOS project starts from several innovative assumptions, integrating agent and ontology technologies to support the adaptability, interoperabi...

Availability and reusability are desired characteristics in order to guarantee the quality of Learning Objects (LO) and, because of that, the imple-mentation of metrics for these characteristics is important for their evaluation. This paper describes an approach that uses a Multi-Agent System for assessing the LO, applying different methods and...

This work presents an alternative model to traditional educational recommender systems techniques. The model proposes the description of Learning Objects (LO) and User Profiles as OWL ontology individuals. We propose that the use of ontologies can be very helpful when we seek to accomplish an overall domain interoperability and knowledge descriptio...

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...

An Influence Diagram is a simple visual representation of a decision problem that provides an intuitive way to identify and display the essential elements, including decisions, uncertainties, and objectives, and on how they influence each other. This paper discusses its use in the selection of pedagogical strategies in a multi-agent learning system...

This paper proposes ontologies for the LOM, OBAA, and IMS Access-ForAll learning object metadata standards. Those standards define the hierarchical structure and the axioms for the proposed ontologies. The OWL 2 was used to describe those ontologies. The lowest granularity as possible among the individuals that compose a learning object is aimed. T...

Nowadays more and more the use of Information and Communication Technologies in educational contexts extends the dimensions of group learning and claims for more effective collaborative learning. As the social networking and e-learning technologies are growing, they tend towards closer to a social learning approach. In order to cope with this trend...

Resumo Esse ar go apresenta o simulador SimDeCS (Simulador de Casos de Saúde) que está em desenvolvimento na UFCSPA (Universidade de Ciências da Saúde de Porto Alegre). O mesmo pode ser caracterizado como uma ferramenta que promove a aprendizagem inspirada em métodos a vos de aprendizagem (aprendizagem baseada em problemas e problema zação).

This paper presents a multi-agent learning system for health care practitioners: SimDeCS (Simulation for Decision Making in the Health Care Service). The main contribution of this work is the system architecture and model-learning environment supported by artificial intelligence techniques. The SimDeCS was designed as a multi-agent system, where th...

Este artigo descreve o processo de acessibilidade e a análise da pré-testagem de uma aplicação com Objeto de Aprendizagem de Matemática voltado para um caso particular do conteúdo de Função Afim, que é o estudo de Função Constante. Este Objeto de Aprendizagem foi desenvolvido e testado por uma equipe de um Núcleo de Pesquisa que entre suas linhas d...

Communities of Practice (CoP) integrate people in a group in order to learn in a collaborative way. In these communities it is necessary to establish a formal and standardized representation of the interests and the knowledge that emerges from the CoP. With this scenario in mind, this paper presents a reference ontology for a user profile representa...

Predicting students' emotion raises several questions about the data on which these predictions should be grounded. This article describes an empirical evaluation of a cognitive-based affective user model accomplished with 7th grade students. The affective model is based on the OCC psychological theory of emotions in order to infer the students' em...

Esta pesquisa, resultado da tese de doutorado em Informatica na educacao da UFRGS, visa identificar como podemos inferir computacionalmente, a partir da analise de uma conversacao online com um sujeito com autismo, os deficits de comunicacao presentes nessa conversacao de tal forma que possa ser oferecido algum tipo de compensacao utilizando agente...

This work presents a recommender system infrastructure for educational material described with metadata. The idea is to provide a set of flexible premises that allows reasoning and improved personalized results in learning content recommendations. For its operation we propose the use of the OBAA standard, which is an extension of IEEE LOM that prov...