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In order for an Intelligent Tutoring System (ITS) to correct students' exercises, it must know how to solve the same type of problems that students do and the related knowledge components. It can, thereby, compare the desirable solution with the student's answer. This task can be accomplished by an expert system. However, it has some drawbacks, such as an(More)
Educational Data Mining (EDM) is the research area concerned with the development and use of data mining methods for exploring data sets collected in educational settings. In recent years, EDM has become established internationally as a field and research community, with evidence of considerable potential to improve the quality of education. Though there(More)
One of the main difficulties during the design of collaborative learning activities is adequate group formation. In any type of collaboration, group formation plays a critical role in the learners' acceptance of group activities, as well as the success of the collaborative learning process. Nevertheless, to propose both an effective and pedagogically sound(More)
Two of the most important research subjects during the development of intelligent authoring systems (IAS) for education are the modeling of knowledge and the extraction of knowledge flows from theory to practice. It bridges the gap between theoretical understanding about learning and the practical foundations of design the knowledge of intelligent systems(More)
Requirements Engineering (RE) discipline deals with elicitation, analysis, specification, validation and management of requirements. Several ontology-driven approaches have been proposed to improve these RE activities. However, the requirements engineering community still lacks a comprehensive understanding on how ontologies are used in RE process. The(More)
One of the key issues in e-learning environments is the possibility of creating and evaluating exercises. However, the lack of tools supporting the authoring and automatic checking of exercises for specifics topics (e.g., geometry) drastically reduces advantages in the use of e-learning environments on a larger scale, as usually happens in Brazil. This(More)
To evaluate the teaching-learning process in collaborative learning sessions and its educational benefits for learners, we should analyze the interaction process during each session and select appropriate learning goals and tasks for each learner. However, the interaction process is very difficult to analyze, even for experts, and furthermore choosing(More)