From: Achieve data privacy and clustering accuracy simultaneously through quantized data recovery
Si | The ith subspace |
\(L^{*}_{i}\) | Columns of matrix L∗ belonging to the ith subspace |
\(L^{*}_{\star i}\) | The ith column of matrix L∗ |
\(L^{*}_{i\star }\) | The ith row of matrix L∗ |
\(L^{*}_{i,j}\) | Entry on the ith row and jth column of matrix L∗ |
[p] | The set {1,...,p} |
Φi | Index set containing {q(i−1)+1,q(i−1)+2,...,qi} |
\(C_{\Phi _{i}}\) | Columns of matrix C belonging to the set Φi |
\(C_{\Phi _{i}\star }\) | Rows of matrix C belonging to the set Φi |
\((C_{\Phi _{i}})_{\Phi _{j}\star }\) | Rows of matrix \(C_{\Phi _{i}}\) belonging to the set Φj |
\(C_{\Phi _{i} \star }^{T}\) | The transpose of \(C_{\Phi _{i} \star }\) |