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
摘要:
#The normal equation is \(A^TAx=A^Tb\) with \(A\in R^{m\times n}\) and \(m\gg n\). Proof. \(rank(A)=rank(A^TA)\) \(col(A^TA)\subset row(A)\) From 1 an 阅读全文
摘要:
MP Given $f$ and a set of vectors $G=\{g_{\gamma}\}$, We want to find some atoms in $G$ to linearly represent $f$, i.e., $$f=a_1 g_1+a_2g_2+\cdots+a_n 阅读全文