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Traditional IDSs have take network factors and distributed environment into account, but the conception of real Distributed-IDS is not so strong. This paper introduces a modified federated peer to peer architecture that can be implement easily. With the help of multicast reflector and modified shaker protocol embedded inside, the suggested scheme can perform better intrusion detection by sharing information...
To improve the fault tolerance of the distributed spanning tree (DST) structure, we present an improved DST structure through orderly storing the elements in groups. Further, we give a representative selection rule, and based on which the node arrival and departure algorithms are proposed to balance the distribution of representatives in the structure. The maximal difference of the probabilities of...
In the traditional distributed spanning tree (DST), randomly selecting representatives makes some nodes become critical nodes, which increase the load of critical nodes and also reduce the fault tolerance of systems. To resolve this problem, an improved DST structure and a searching algorithm were proposed. In this paper, we describe a representative selection rule first, which provides a good load...
Many emerging information processing applications require applying various fork and join type operations such as correlation, aggregation, and encoding/decoding to data streams in real-time. Each operation will require one or more simultaneous input data streams and produce one or more output streams, where the processing may shrink or expand the data rates upon completion. Multiple tasks can be co-located...
Mesh-pull based P2P live media streaming system has gained a lot of interests and successes, and collecting key metrics in time from millions of peers to monitor the system level quality is very important for its successful commercial deployment. But the real-time monitoring still faces great technology obstacles, especially considering the dynamic and large-scale scenario which is very common in...
Nodes in mesh overlay multicast system don't have fixed parent-children relationship like that in trees and form neighbors. But in data-driven mesh and based on pulling method, for each packet, it still follows a certain tree and the parent-children relationship does exist. While having the powerful peers stay closer to the source may improve the performance, we make the peers of high out bandwidth...
Recent advances in computer technology and wireless communications have enabled the emergence of stream-based sensor networks. In such sensor networks, real-time data are generated by a large number of distributed sources. Queries are made that may require sophisticated processing and filtering of the data. A query is represented by a query graph. In order to reduce the data transmission and to better...
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