Multiple multicast trees have been shown to increase the performance of data distribution when compared with single tree multicast. Node loss and congestion changes the performance characteristics of the multicast trees. Multicast tree performance feedback can be used to determine the optimal tree to use based on the feedback. We further examine an optimizing methodology, Probabilistic Multicas...

Video surveillance systems must support multiple streaming and prompt alert notification. We propose a two-tiered environment: a supervisor defines presentation layouts and model interface reactions to alerts; a surveillant watches synchronized videos, adapts layouts, and is notified with alerts.

Path planning is an important area in the control of autonomous mobile robots. Recent work has focused on aspects reductions in processing time than the memory requirements. A dynamic environment uses a lot of memory and hence the processing time increases too. Our approach is to reduce the processing time by the use of a pictorial approach to reduce the number of data used. In this paper, we p...

We describe a software environment for dynamic optimization using the simultaneous approach. Over the past few years, there has been significant evelopment in the formulation of simultaneous dynamic optimization problems, using collocation on finite elements, and in the solution of the esulting large-scale nonlinear programming problem, using powerful barrier NLP solvers. Here we describe the b...

Methods and tools for nding documents relevant to a user's needs in document corpora can be found in the information retrieval, library science, and hypertext communities. Typically, these systems provide retrieval capabilities for fairly static corpora, their algorithms are dependent on the language for which they are written, e.g. English, and they don't perform well when presented with missp...