Comment Just make sure your training data is good... (Score 4) 127
This learning algorithm looks similar to a neural net. My CS professor told us a story about the US government making a neural net that would be used to recognize tanks in satellite photographs.
They spent many hours loading photos for training data. Some photos had tanks and others did not. Once they thought it was working, they tried it on some non-training data --it didn't work.
Instead of recognizing tanks, it learned to distinguish cloudy days from ones with sunshine. All of the pictures with tanks were taken on a cloudy day & all other pictures were taken on days that had sunshine.
He didn't know if they ever actually got it working or not...
They spent many hours loading photos for training data. Some photos had tanks and others did not. Once they thought it was working, they tried it on some non-training data --it didn't work.
Instead of recognizing tanks, it learned to distinguish cloudy days from ones with sunshine. All of the pictures with tanks were taken on a cloudy day & all other pictures were taken on days that had sunshine.
He didn't know if they ever actually got it working or not...
