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Results tagged with data-mining
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user 6750
Data mining uses methods from artificial intelligence in a database context to discover previously unknown patterns. As such, the methods are usually unsupervised. It is closely related but not identical to machine learning. Key tasks of data-mining are cluster analysis, outlier detection and mining of association rules.
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ROC curve and confusion matrix in classifier performance evaluation
A ROC curve shows you performance across a range of different classification thresholds and a confusion matrix only shows you one (typically when $Pr(y > .5)$).
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