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A data warehousing and data mining approach for analysis and forecast of cloudburst events using OLAP-based data hypercube

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  • Kavita Pabreja
  • Rattan K. Datta

Abstract

The multidimensional data model can be effectively utilised for analysing huge and detailed meteorological datasets forecasted by numerical weather prediction (NWP) model. The model cannot predict any weather event directly. The output products of model are interpreted by man-machine mix to infer the idiosyncratic behaviour of weather events. The mathematical tools for analysis and forecasting are able to provide forecast of weather variables only at grid-points. In this paper, the technology of dimension modelling has been adapted for analysing NWP model output datasets corresponding to sub-grid scale events viz. cloudburst, using OLAP technique. The huge datasets of weather variables available directly and derived indirectly, are mined so as to locate the patterns of cloudburst formation. K-means clustering technique has been used to generate clusters of convergence and divergence, for four real-life cases of cloudburst. It has been observed that clustering technique can help in identification of patterns conducive to formation of cloudburst.

Suggested Citation

  • Kavita Pabreja & Rattan K. Datta, 2012. "A data warehousing and data mining approach for analysis and forecast of cloudburst events using OLAP-based data hypercube," International Journal of Data Analysis Techniques and Strategies, Inderscience Enterprises Ltd, vol. 4(1), pages 57-82.
    • Handle: RePEc:ids:injdan:v:4:y:2012:i:1:p:57-82
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    References listed on IDEAS

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    1. Mohammad Rifaie & Keivan Kianmehr & Reda Alhajj & Mick J. Ridley, 2009. "Data modelling for effective data warehouse architecture and design," International Journal of Information and Decision Sciences, Inderscience Enterprises Ltd, vol. 1(3), pages 282-300.
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