發送短信

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

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發送短信 : An investigation of the application of graph neural networks in recommendation systems