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 _____     __   __    ______     ___     _    _   
|  __ \\   \ \\/ //  /_____//   / _ \\  | \  / || 
| |  \ ||   \ ` //   `____ `   / //\ \\ |  \/  || 
| |__/ ||    | ||    /___//   |  ___  ||| .  . || 
|_____//     |_||    `__ `    |_||  |_|||_|\/|_|| 
 -----`      `-`'    /_//     `-`   `-` `-`  `-`  
                     `-`

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Text this: Structured sparse representations for supervised and unsupervised learning