ConceptMapWiki - a collaborative framework for agglomerating pedagogical knowledge

We propose a new educational framework,ConceptMapWiki, that is a wiki representing pedagogicalknowledge with a collection of concept maps which iscollaboratively created, edited and browsed. The learners andeducators provide complementing contribution to evolvingshared knowledge structures that are stored in a relationaldatabase forming together inter-connected overlappingontologies. Every contribution is stored supplied with timestamps and a user profile enabling to analyze maturing ofknowledge according to various learner-driven criteria.Pedagogically motivated learning paths can be collaborativelydefined and evaluated, and educational games can beincorporated based on browsing and editing concept maps.The proposed framework is believed to be the first wikiarchitecture of it's kind, designed for personalized learningwith an evolving knowledge repository relying on adaptivevisual representations and sound pedagogical motivation.Initial experiments with a functional online prototype indicatepromising educational gain and suggest further research.Peer reviewe

The evaluation of ontologies: quality, reuse and social factors

Finding a “good” or the “right” ontology is a growing challenge in the ontology domain, where one of the main aims is to share and reuse existing semantics and knowledge. Before reusing an ontology, knowledge engineers not only have to find a set of appropriate ontologies for their search query, but they should also be able to evaluate those ontologies according to different internal and external criteria. Therefore, ontology evaluation is at the heart of ontology selection and has received a considerable amount of attention in the literature.Despite the importance of ontology evaluation and selection and the widespread research on these topics, there are still many unanswered questions and challenges when it comes to evaluating and selecting ontologies for reuse. Most of the evaluation metrics and frameworks in the literature are mainly based on a limited set of internal characteristics, e.g., content and structure of ontologies and ignore how they are used and evaluated by communities. This thesis aimed to investigate the notion of quality and reusability in the ontology domain and to explore and identify the set of metrics that can affect the process of ontology evaluation and selection for reuse. [Continues.

Ensimmäinen ja toinen käsikirjoitusversio väitöskirjaa varten

This publication contains the first and the second manuscript version for LauriLahti’s doctoral dissertation in 2015 "Computer-assisted learning based on cumulative vocabularies, conceptual networks and Wikipedia linkage".Tämä julkaisu sisältää ensimmäisen ja toisen käsikirjoitusversion Lauri Lahden väitöskirjaan vuonna 2015 "Tietokoneavusteinen oppiminen perustuen karttuviin sanastoihin, käsiteverkostoihin ja Wikipedian linkitykseen".Not reviewe