 These include the standard DARTS method fully integrating the estimation of architecture weights and TDNN parameters in lattice-free MMI (LF-MMI)  training;
<clarity>  These include the standard DARTS method fully integrating the estimation of architecture weights and TDNN parameters in lattice-free MMI (LF-MMI)  training;
 These include the DARTS method integrating architecture selection with lattice-free MMI (LF-MMI) training;