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Handling outliers and concept drift in online mass flow prediction in CFB boilers

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Proceedings of the Third International Workshop on Knowledge Discovery from Sensor Data, стр. 13--22. New York, NY, USA, ACM, (2009)
DOI: 10.1145/1601966.1601972

Аннотация

In this paper we consider an application of data mining technology to the analysis of time series data from a pilot circulating fluidized bed (CFB) reactor. We focus on the problem of the online mass prediction in CFB boilers. We present a framework based on switching regression models depending on perceived changes in the data. We analyze three alternatives for change detection. Additionally, a noise canceling and a state determination and windowing mechanisms are used for improving the robustness of online prediction. We validate our ideas on real data collected from the pilot CFB boiler.

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