11 ms·
The first think any ML practictioner realizes is that accuracy is about the single worst performance metric you can use for most real-world tasks, lol
by LarsDu88 3y ago
The first think any ML practictioner realizes is that accuracy is about the single worst performance metric you can use for most real-world tasks, lol
- altdataseller 3y agoCan you explain this? Why is that?
- LarsDu88 3y agoLet me sell you an amazing cancer test my friend. It's 99.5 percent accurate. It works through an incredibly novel mathematical technique. You simply go to the patient and tell them they don't have cancer. Since 99.5 percent of people don't have cancer, this classifier is 99.5 percent accurate. Completely bullshit classifier for a completely bullshit metric. Use sensitivity/specificity or precision/sensitivity instead