Alberto J. Cañas

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A research program at Cornell University that sought to study the ability of first and second grade children to acquire basic science concepts and the effect of this learning on later schooling led to the need for a new tool to describe explicit changes in children's conceptual understanding. Concept mapping was invented in 1972 to meet this need, and(More)
The construction of a concept map consists of enumerating a list of concepts and —a more difficult task— determining the linking phrases that should connect the concepts to form meaningful propositions. Appropriate word selection, both for concepts and linking phrases, is key for an accurate knowledge representation of the user's understanding of the(More)
Concept maps capture knowledge about the concepts and concept relationships in a domain, using a two-dimensional visually-based representation. Computer tools for concept mapping empower experts to directly construct, navigate, share, and criticize rich knowledge models. This paper describes ongoing research on augmenting concept mapping tools with systems(More)
Information visualization has been a research topic for many years, leading to a mature field where guidelines and practices are well established. Knowledge visualization, in contrast, is a relatively new area of research that has received more attention recently due to the interest from the business community in Knowledge Management. In this paper we(More)
Electronic concept mapping tools empower experts to play an active role in the knowledge capture process, and provide a medium for building richly connected multimedia <i>knowledge models---</i>sets of linked concept maps and resources about a particular domain. Knowledge models are intended to be used as a means for sharing knowledge among humans, not as(More)
Knowledge management depends on effective methods for capturing knowledge in useful forms and making it available when needed. Electronic concept maps provide a promising representation for knowledge models that can be developed directly by the experts themselves, but the flexibility of concept mapping raises questions of how to support the knowledge(More)
In this paper, we describe a unique approach to the creation of a system to provide electronic performance support and training for electronics technicians. This work starts with a survey of relevant approaches to knowledge elicitation and modeling for performance support, and a review of other systems that have been created to assist with electronics(More)
The integration of modern computer-based inferencing, networking, computer-mediated training and multimedia technology hold the promise of improved training and performance support for personnel in industry and government. This paper reports an effort to develop a network-enabled knowledge editing and modeling environment that offers just-in-time training(More)