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Shared State for Distributed Interactive Data Mining Applications

, and . Distributed and Parallel Databases, (2002)Read again (not completed). Good article. They define some design goals: clients have different needs to be notified about changes in the data state, client-controlled memory management, and identifying what part of the data that has been modified. They have an approach to the design goal of client controlled coherence. It means that the client can decide which data update scheme it needs. There are three similar update schemes that ansures that the client gets the data only once, when it changes, and at certain time intervals. The system is called Interact. The articture, figure 1, is that the client maps to a virtual dataspace, which then maps to the data server. They use association and sequence mining as applicatins of the Interact system. Association mining is to discover itemsets that frequently occour together. They also use sequence mining, which aims to discover events that commonly occour over a period of time. They call this a temporal database. They actually use summary structures, which makes this a litte more to the modelling side than my scope which is more on the primary modelling side. They seem to to have focused partly on the delivery of the results to the clients. They use 2-dimansional discretation. I might have to do the same as it is problematic to make calculations on higherdimensional structures. It also seems to be diffucult to visualize higher dimensions than that..

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