  This paper provides a concise procedure for the study on local behavior of
solutions to anisotropic weighted quasi-linear singular parabolic equations of
$p$-Laplacian type, which is realized by applying intrinsic scaling factor to
the De Giorgi truncation method. In particular, it also presents a new proof
for local H\"{o}lder continuity of the solution in the unweighted case.
Finally, the results are further extended to more general doubly nonlinear
parabolic equations.

Analysis of PDEs