交替最小二乘ALS
https://www.cnblogs.com/hxsyl/p/5032691.htmlhttp://www.cnblogs.com/skyEva/p/5570098.html1.基础回顾矩阵的奇异值分解SVD（特别详细的总结，参考 http://blog.csdn.net/wangzhiqing3...
https://www.cnblogs.com/hxsyl/p/5032691.htmlhttp://www.cnblogs.com/skyEva/p/5570098.html1.基础回顾矩阵的奇异值分解SVD（特别详细的总结，参考 http://blog.csdn.net/wangzhiqing3...