Semantic wikis are wikis which incorporate machine-readable semantic structure. The data they expose can be visualized for many different purposes using various tools. One particularly interesting use of visualization is to provide users with an overview of the wiki contents. In this work we develop a variant of radial space filling trees which employ a novel type of interaction to help users m...

Semantic wikis combine the advantages introduced by the wiki principle with the potential of Semantic Web technologies. However, there is still a very limited support for coordination, collaboration and integration in current semantic wikis. In this paper, we present a solution for this through the integration of our Makna semantic wiki with a workflow system. The resulting implementation is pr...

Semantic wikis enhance normal wikis with typed links. Every link on a semantic wiki page has a type describing the relation of the current page to the target of the link. In this paper we propose an architecture that can be used to validate the user input and consistency of typed links in the input with the existing knowledge base. The validation of the consistency is done by utilising a reason...

Higher education is both a consumer and a producer of wiki content. The online collaborative encyclopedia Wikipedia, for example, is frequently used as a research device (although usually informally). On public wikis faculty and staff might modify content that pertains to the institution or its sponsored research. Moreover, institutionally supported wikis are becoming increasingly common as a p...

This paper describes how we extended the SIOC ontology to take into account particular aspects of wikis in order to enable integration capabilities between various wiki systems. In particular, we will overview the proposed extensions and detail a webservice providing SIOC data from any MediaWiki instance, as well as related query examples that show how different wikis, designed as independant d...

We present ODEWiki, a technology for the development of Semantic Wikis, which has a combined set of added-value features over other existing semantic wikis in the state of the art. Namely, ODEWiki interoperates with an existing semantic portal technology (ODESeW), it manages inconsistencies raised because of the distributed nature of knowledge base development and maintenance, it uses RDFa for ...

In this paper we investigate the efficacy of a wiki as a tool for collaborative learning and enhancing students ability to communicate in an undergraduate mathematics course. A wiki is a website which is constructed primarily for the purposes of online authoring and collaboration [8]. The prototypical example is Wikipedia, the online encyclopedia constructed with the help of tens of thousands o...

Wikis are a collaborative technology that allows for new ways of working and sharing knowledge. While most firms today have been experimenting with wikis, an important element of the use of wikis that has generally been ignored is the role of the people who shape the wiki pages. Shapers ensure the sustainability of a wiki community by helping to ensure that new ideas and contributions are made ...