You can set up your own screens and back-test them for a year to determine which worked best.

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The software allowed customers to schedule appointments online and dealers to tailor special promotions and track which efforts worked best.

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Insurance giant AllState, which has worked with Kaggle before, is offering a large, undisclosed cash prize for the algorithm that best predicts which customers are going to renew their car-insurance policies when they have six months left on their plan.

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