In my original testing series Cognitive System Testing From A to Z I described how cognitive systems require a fresh look at testing compared to traditional systems. Cognitive systems are probabilistic, traditional systems are deterministic, and this…
I wear a Fitbit every day. My Fitbit serves as a personal health monitoring and dashboarding solution. Literally, I use my Fitbit to make sure my job and lifestyle isn’t killing me. I use its…
In building a cognitive model it can be difficult to know when it’s accurate enough. (You are measuring your daily performance, right?) We know that cognitive performance often involves making a tradeoff between the competing…
If you’ve built a cognitive system, you know that it requires a lot of training to reach peak performance. (For details, read Why does machine learning require so much data?) How much training data do you…
I recently completed a seven-post series on the IBM Watson Developer Blog about Cognitive System Testing. These posts reflect some hard-learned lessons from the past few years. Cognitive systems present some interesting challenges for testing-minded…
Several years ago my wife decided to make custom multi-colored Christmas light strands by changing the individual light bulbs on solid-colored strands. The task seemed simple, if tedious, enough: Step 1. Get 100 bulb strands of…