老骥伏枥

摘要： This is adapted from tuorial notes by Wusheng Lu, 2010. Now let us consider a discrete signal $x\in R^n$ which itself may or may not be sparse in the 阅读全文

摘要： Given $N$ data samples in $n$ dimensional space, i.e., $Y \in R^{n\times N}$, the task is to compute the dictionary $D\in R^{n\times K}$ and sparse co 阅读全文