Towards efficient event aggregation in a decentralized publish-subscribe system
Jianxia Chen, Lakshmish Macheeri Ramaswamy, David K. Lowenthal · 2009
Recently, decentralized publish-subscribe (pub-sub) systems have gained popularity as a scalable asynchronous messaging paradigm over wide-area networks. Most existing pub-sub systems, however, have been designed with the implicit assumption that published data is clean and accurate. As the pub-sub paradigm is incorporated in real-world applications with human participants, this assumption becomes increasingly invalid due to the inherent noise in the event stream. The noise can take many forms, including redundant, incomplete, inaccurate, and even malicious event messages.