Even in state-of-the-art virtual reality (VR) setups, participants often feel lost when navigating through virtual environments. In psychological experiments, such disorientation ...
The point algebra is a fundamental formal calculus for spatial and temporal reasoning. We present a new generalization that meets all requirements to describe dependencies on netw...
Because diagrams are often created incrementally, a qualitative diagrammatic reasoning system must dynamically manage a potentially large set of spatial interpretations. This pape...
Ronald W. Ferguson, Joseph L. Bokor, Rudolph L. Ma...
Abstract. We report our work towards building user models of learner’s development based upon evidence of their interactions with an e-learning website composed of multimedia lea...
Abstract. The Double Cross calculus has been proposed for the purpose of navigation based on qualitative information about spatial configurations. Up until now, however, no result...