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Matthews correlation coefficient

Like many other researchers, I have struggled with the holy grail of representing the confusion matrix with a single value.  Surely, it may be easy to compare two confusion matrices, for example, you...

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Matthew’s Correlation Coefficient – How Well Does It Do?

Background: This post talks about 2-class classification systems, that is, targeting systems. In targeting system, it is common practice to discuss the performance in terms of confusion matrix, which...

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Confusion Matrix – Another Single Value Metric – Kappa Statistic

Background: This is another in the line of posts on how to compare confusion matrices. The path, as has been taken in the past is in terms of using some aggregate objective function (or single value...

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Comparing two confusion matrices

Comparing two confusion matrices is a standard approach for comparing the respective targeting systems, but by no means is it the only one. As we will discuss in the coming days, you can also compare...

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Comparing Kappa Statistic to the F1 measure

We looked at Kappa Statistic previously, and I have been evaluating some aspects of it again. To remind ourselves, Kappa statistic is a measure of consistency amongst different raters, taking into...

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