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Overview:

Spreadsheets applications allow data to be stored with low development overheads, but also with low data quality. Reporting on data from such sources is difficult using traditional techniques. This case study uses text data mining techniques to analyse 12 years of data from dam pump station maintenance logs stored as free text in a spreadsheet application. The goal was to classify the data as scheduled maintenance or unscheduled repair jobs. Data preparation steps required to transform the data into a format appropriate for text data mining are discussed. The data is then mined by calculating term weights to which clustering techniques are applied. Clustering identified some groups that contained relatively homogeneous types of jobs.

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Format:PDFSize:332 KB
Date:Oct 2008
Pages:7

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