Monocam

Tim Hansen was surprised to be issued a $400 citation for using his mobile phone while driving when he was actually just scratching his head. 

Coincidentally, Hansen is an engineer who happens to work on machine learning systems that analyze images.

"If a model has to predict whether something is 'yes' or 'not' the case, it can of course also happen that the model is wrong," according to a translated blog post Nippur wrote about his experience. 

"In the case of my ticket, the model indicated that I am holding a telephone, while that is not the case. Then we speak of a false positive. A perfect model only predicts true positives and true negatives, but 100% correct prediction is rare."

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