Overview Publications People Acknowledgements
SemCast: Semantic MultiCast
Content-based Data Dissemination using Multicast
SemCast logo

SemCast investigates efficient content-based data filtering and dissemination over conventional multicast channels. SemCast splits input data streams into multiple pieces, using a cost-model on data contents, rates, and destinations, and spreads the pieces across multiple multicast channels for delivery. Each channel can be implemented as a standard  overlay  dissemination tree. This approach eliminates the need for content-based filtering and routing at interior nodes of the overlay, thus simplifying and improving the dissemination efficiency.
   The high-level design and basic performance of  SemCast is presented in an ICDE'05 paper. This paper subsumes our WebDB'04 paper that provides a preliminary desription of the system. This project is superseded by the XPORT project.



This project is based upon work supported by the National Science Foundation under Grant No. 0325703 and 0448284. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.