A service-oriented framework for controlling invasive species in agriculture
International Journal of Metadata, Semantics and Ontologies
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In addition to the traditional approach, in which users explicitly request information when needed, service providers have developed more proactive techniques in which information sources automatically initiate the dissemination. Such new methods ý often combining pull- and push-based dissemination with caching and proxy infrastructures ý have generated considerable research and commercial activity, but many issues remain. The articles in this issue show a small cross section of some of the more promising technological responses to a few of the remaining problems.