博客:http://blog.csdn.net/zouxy09/article/details/24971995
博客:http://blog.csdn.net/jinping_shi/article/details/52433975
L1正則項(xiàng)

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L2正則項(xiàng)

Paste_Image.png
L0 和 L1/2 范數(shù)能夠更加好的得到稀疏項(xiàng)
只不過(guò)可導(dǎo)性更差一些;
博客:http://blog.csdn.net/zouxy09/article/details/24971995
博客:http://blog.csdn.net/jinping_shi/article/details/52433975
只不過(guò)可導(dǎo)性更差一些;