Since its establishment in 1990, Project Lifeline has been dedicated to serving juvenile court children to help them survive some of the harshest conditions that stubbornly persist in our community. Yet the single greatest obstacle these young men and women face is not the hardship they’ve already endured. It is the fear that things will never change – no matter what they do, their lives will n...

Technological advances in position aware devices increase the availability of tracking data of everyday objects such as animals, vehicles, people or football players. We propose a geographic data mining approach to detect generic aggregation patterns such as flocking behaviour and convergence in geospatial lifeline data. Our approach considers the object's motion properties in an analytical spa...

The growing demand for large and complex ontologies present new challenges related to their design, maintenance and evolution. In this paper, we propose an approach to managing the evolution of large OWL ontologies. Unlike conventional approaches that focus on the versioning of entire ontology, we use an evolutionary log to track the lifeline of each axiom or annotation that appears in an evolv...