He says that his first attempt at whale recognition looked at waves instead of whales, but > This naive approach yielded a validation score of just ~5.8 (loglo

He says that his first attempt at whale recognition looked at waves instead of whales, but > This naive approach yielded a validation score of just ~5.8 (logloss, lower the better) which was barely better than a random guess. which is different from the tank story. For the tanks, the neural network appeared to perform well, but was actually not looking at the tanks. Here, it never performed well, and when debugging why not he found that it was not looking at the whales.