E. you read a simple input csv, split it into training and test set, run a simple algorithm with readily-tuneable or explorable hyperparameters, and a simple output of relevant statistics.

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With The Leap motion detector (which Newcomb was one of the first to test) and other high resolution input methods on the horizon, the performance demands on apps will only increase.

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Second, newer approaches to CAPTCHA have been developed that try a different approach to a Turing test by asking users to perform operations through input devices, like a keyboard or mouse.

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It's a much lighter product, at 1.3 pounds (down from 1.58), and although it uses a heavier-duty Atom processor, battery life is said to top out at about 10 hours. (The original lasted eight in our usual test.) Like the OG version, it allows for pen input on select models, but of course, Windows comes ready-made with a larger selection of apps where a pen might actually be useful.

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