Corrections to “HTGCE: An Graph-Based and Classifier-Oriented Dimension Reduction Method for Multisource Heterogeneous Feature Tensors”

In the above article [1] , some errors appear in equations due to incorrect fonts. First, the matrix variables should be denoted by uppercase boldface letters, e.g., $\boldsymbol{U}_{l}^{m}$ and $\boldsymbol{S}_{g}$ . The vector variables should be denoted as lowercase boldface letters, e.g., $c$ and $c^{\prime}$ .