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Performance Measures for Classifiers: Precision, Recall, and F1
Here is a new, simple tutorial on how to evaluate the quality of a classifier. The attached doc shows you how to construct a confusion matrix, compute the precision, recall, and f1 scores for a classifier, and to construct a precision/recall chart in R to compare the relative strengths and weaknesses of different classifiers. performance-measures-classifiers-75-925 Granted,…
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Access METAR Weather Data in R Statistical Software
Although this is neither quality nor innovation related, as a multi-decade weather geek and degreed meteorologist, I still really love my weather data. Today I wanted to learn how to retrieve historical weather data from within the R statistical software. I managed to get a list within R that contains METAR observations for an entire…
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Cramming for Your Six Sigma Black Belt Exam?
Are you making last minute preparations for your ASQ Certified Six Sigma Black Belt (CSSBB) exam? If so, you’re probably reviewing your notes, hoping that you’re bringing all the right stuff in with you. When I passed my CSSBB on the first attempt, I found that I had GREAT notes with me, and I’d like…
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Fast Quality via Dynamic Capabilities
(Image Credit: Doug Buckley of http://hyperactive.to) In his November post, ASQ CEO Paul Borawski comments on the rapid pace of change and asks to: “…share with us some of the ways the practice of quality is changing to meet the needs of faster, faster, faster. “ Fortunately, there has been a ton of research on this…
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Finding Your Passion and Your Purpose (When You Think You’re a Lost Cause)
(Image Credit: Doug Buckley of http://hyperactive.to) What’s your purpose in life? What’s your passion? Are you looking for it? Maybe you’ve been looking for it a long time. Yeah, I know how you feel. This is probably at least the thousandth page you’ve Googled to try and find an answer. You’re tired of looking. You…
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Top 20 Data Visualization Tools
Every researcher or practitioner of quality (or pretty much any other subject, for that matter) needs a great toolbox packed with flexible visualization tools. I am very happy to see this list of “Top 20 Data Visualization Tools” that came out last week. For me, it’s like a TO DO list! Although I am THRILLED…
Quality and Innovation 