12,156 research outputs found

    Exploiting synergy between ontologies and recommender systems

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    Recommender systems learn about user preferences over time, automatically finding things of similar interest. This reduces the burden of creating explicit queries. Recommender systems do, however, suffer from cold-start problems where no initial information is available early on upon which to base recommendations.Semantic knowledge structures, such as ontologies, can provide valuable domain knowledge and user information. However, acquiring such knowledge and keeping it up to date is not a trivial task and user interests are particularly difficult to acquire and maintain. This paper investigates the synergy between a web-based research paper recommender system and an ontology containing information automatically extracted from departmental databases available on the web. The ontology is used to address the recommender systems cold-start problem. The recommender system addresses the ontology's interest-acquisition problem. An empirical evaluation of this approach is conducted and the performance of the integrated systems measured

    Educational Technology and Teacher Education: Barriers and Gates in South America

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    Historically, Educational Technology (EdTech) and Teacher Education (TE) have shared a conflicted relationship, particularly where practicing teachers have not been trained in ET in a manner so that they are able to coherently and efficiently incorporate the new educational technology into their classrooms and schools. In Latin America’s diverse scenario, our analysis is focused on a scenario consisting of Argentina and Uruguay. In this scenario, we identify the social and cultural context where teacher education and teaching practice take place, the EdTech-related programs with the greatest impact, and the “barriers” hindering access to and the application of EdTech, as well as the “bridges” or “gates” that facilitate their effective incorporation to teaching and learning both at schools and in teacher education. Lastly, we propose some courses of action to reduce these barriers and widen the gates connecting EdTech and school settings.Fil: Constantino, Gustavo Daniel. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro de Investigaciones en AntropologĂ­a FilosĂłfica y Cultural; Argentin

    The learning network on sustainability: An e-mechanism for the development and diffusion of teaching materials and tools on design for sustainability in an open-source and copy left ethos

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    This is the post-print version of the Article. The official published version can be obtained from the link below - Copyright @ 2011 InderscienceThis paper presents the intermediate results of the Learning Network on Sustainability (LeNS) project, Asian-European multi-polar network for curricula development on Design for Sustainability. LeNS is a mechanism to develop and diffuse system design for sustainability in design schools with a transcultural perspective. The main output of the project is the Open Learning E-Package (OLEP), an open web-platform that allows a decentralised and collaborative production and fruition of knowledge. Apart from the contents, the same LeNS web-platform is realised in an open-source and copy left ethos, allowing its download and reconfiguration in relation to specific needs, interests and geographical representation

    Exploiting Synergy Between Ontologies and Recommender Systems

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    Recommender systems learn about user preferences over time, automatically finding things of similar interest. This reduces the burden of creating explicit queries. Recommender systems do, however, suffer from cold-start problems where no initial information is available early on upon which to base recommendations. Semantic knowledge structures, such as ontologies, can provide valuable domain knowledge and user information. However, acquiring such knowledge and keeping it up to date is not a trivial task and user interests are particularly difficult to acquire and maintain. This paper investigates the synergy between a web-based research paper recommender system and an ontology containing information automatically extracted from departmental databases available on the web. The ontology is used to address the recommender systems cold-start problem. The recommender system addresses the ontology's interest-acquisition problem. An empirical evaluation of this approach is conducted and the performance of the integrated systems measured

    Developing Educators for The Digital Age: A Framework for Capturing Knowledge in Action

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    Evaluating skills and knowledge capture lies at the cutting edge of contemporary higher education where there is a drive towards increasing evaluation of classroom performance and use of digital technologies in pedagogy. Developing Educators for the Digital Age is a book that provides a narrative account of teacher development geared towards the further usage of technologies (including iPads, MOOCs and whiteboards) in the classroom presented via the histories and observation of a diverse group of teachers engaged in the multiple dimensions of their profession. Drawing on the insights of a variety of educational theories and approaches (including TPACK) it presents a practical framework for capturing knowledge in action of these English language teachers – in their own voices – indicating how such methods, processes and experiences shed light more widely on related contexts within HE and may be transferable to other situations. This book will be of interest to the growing body of scholars interested in TPACK theory, or communities of practice theory and more widely anyone concerned with how new pedagogical skills and knowledge with technology may be incorporated in better practice and concrete instances of teaching
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