發送短信

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

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發送短信 : An Inexact l2-norm Penalty Method for Cardinality Constrained Portfolio Optimization