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In this paper we are concerned with event-based situation analysis. Application areas include the understanding and awareness of complex unfolding scenarios such as homeland security threats and future battlespace engagements. The paper (i) discusses the differences between the environments/requirements for event-based management and situation management,(More)
HyTime engine named HyOctane for access to and presentation of document instances. We have created a HyTime-conforming document type definition (HDTD) for encoding interactive multimedia presentations. Our system parses document instances encoded using our HDTD and stores the document descriptions in the database for presentation by our application. The(More)
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HyTime provides a comprehensive set of primitives for composing hypermedia documents, but does not provide facilities for representing interaction or dynamic behavior, areas which are required in commercial multimedia authoring environments. In previous work we have developed and implemented a prototype HyTime engine called HyOctane in which HyTime(More)
NOTICE: this is the author's version of a work that was accepted for publication in Computer Communications. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was(More)
around the one-hop EpiChord overlay. Here the problem is described using a Markov Model for more advanced analysis. The Markov Model is believed to be novel in two aspects: it is the first to investigate one-hop overlays and it is the first to study the performance of multi-destination multicast including the consideration of retransmissions of requests.