6 resultados para Learning objects and communication
em Instituto Politécnico do Porto, Portugal
Resumo:
The corner stone of the interoperability of eLearning systems is the standard definition of learning objects. Nevertheless, for some domains this standard is insufficient to fully describe all the assets, especially when they are used as input for other eLearning services. On the other hand, a standard definition of learning objects in not enough to ensure interoperability among eLearning systems; they must also use a standard API to exchange learning objects. This paper presents the design and implementation of a service oriented repository of learning objects called crimsonHex. This repository is fully compliant with the existing interoperability standards and supports new definitions of learning objects for specialized domains. We illustrate this feature with the definition of programming problems as learning objects and its validation by the repository. This repository is also prepared to store usage data on learning objects to tailor the presentation order and adapt it to learner profiles.
Resumo:
— In the new learning environments, built width digital technologies, the need to promote quality of education resources, commonly known as Learning Objects, which can support formal and informal distance learning, emerge as one of the biggest challenge that educational institutions will have to face. Due to the fact that is expensive, the reuse and sharing became very important issue. This article presents a Learning Object Repository which aims to store, to disseminate and maintain accessible Learning Objects.
Resumo:
The integration of the Smart Grid concept into the electric grid brings to the need for an active participation of small and medium players. This active participation can be achieved using decentralized decisions, in which the end consumer can manage loads regarding the Smart Grid needs. The management of loads must handle the users’ preferences, wills and needs. However, the users’ preferences, wills and needs can suffer changes when faced with exceptional events. This paper proposes the integration of exceptional events into the SCADA House Intelligent Management (SHIM) system developed by the authors, to handle machine learning issues in the domestic consumption context. An illustrative application and learning case study is provided in this paper.
Resumo:
Underwater acoustic networks can be quite effective to establish communication links between autonomous underwater vehicles (AUVs) and other vehicles or control units, enabling complex vehicle applications and control scenarios. A communications and control framework to support the use of underwater acoustic networks and sample application scenarios are described for single and multi-AUV operation.
Resumo:
Assessment plays a vital role in learning. This is certainly the case with assessment of computer programs, both in curricular and competitive learning. The lack of a standard – or at least a widely used format – creates a modern Ba- bel tower made of Learning Objects, of assessment items that cannot be shared among automatic assessment systems. These systems whose interoperability is hindered by the lack of a common format include contest management systems, evaluation engines, repositories of learning objects and authoring tools. A prag- matical approach to remedy this problem is to create a service to convert among existing formats. A kind of translation service specialized in programming prob- lems formats. To convert programming exercises on-the-fly among the most used formats is the purpose of the BabeLO – a service to cope with the existing Babel of Learning Object formats for programming exercises. BabeLO was designed as a service to act as a middleware in a network of systems typically used in auto- matic assessment of programs. It provides support for multiple exercise formats and can be used by: evaluation engines to assess exercises regardless of its format; repositories to import exercises from various sources; authoring systems to create exercises in multiple formats or based on exercises from other sources. This paper analyses several of existing formats to highlight both their differ- ences and their similar features. Based on this analysis it presents an approach to extensible format conversion. It presents also the features of PExIL, the pivotal format in which the conversion is based; and the function definitions of the proposed service – BabeLO. Details on the design and implementation of BabeLO, including the service API and the interfaces required to extend the conversion to a new format, are also provided. To evaluate the effectiveness and efficiency of this approach this paper reports on two actual uses of BabeLO: to relocate exercises to a different repository; and to use an evaluation engine in a network of heterogeneous systems.
Resumo:
A utilização das Tecnologias da Informação e Comunicação (TIC) como ferramentas cognitivas foi o propósito deste projeto. A problemática da introdução das TIC na sala de aula numa perspetiva construtivista levou-nos ao nosso estudo empírico, onde utilizamos uma metodologia de investigação quantitativa e qualitativa numa triangulação que nos pareceu mais adequada a este estudo. Como método foi adotado o estudo de caso e utilizamos como fontes de recolha de dados o inquérito por questionário a professores e alunos e uma entrevista a um especialista na área das TIC. O resultado do estudo efetuado permitiu-nos verificar que da parte dos docentes existe uma necessidade de formação e informação na área das TIC como ferramentas cognitivas, mais partilha de boas práticas e também mais utilização de meios tecnológicos na sua ação de ensino e aprendizagem. Quanto aos alunos, pensamos que com a mudança de atitude dos professores, mudaremos também a sua forma de utilizar as TIC na sua aprendizagem. Na operacionalização do plano de ação, criamos três etapas de trabalho: a) Oficina de Formação, b) Informação e c) promoção de atividades online. Pensamos que com este plano daremos resposta à nossa questão de partida, e criaremos um ambiente de ensino/aprendizagem onde as TIC se transformem em ferramentas cognitivas de apoio à construção das aprendizagens significativas dos alunos.