Table 10.

Homogeneous echo target tasks: computational time and training parameters for the proposed and baseline approaches.

Method	Task	Computational Time	Training Parameters
Proposed	Shared Source (${\text{UMS-Rep}}_{echo}$)	28.19 min	460,115
	Classification Head 1 (MV vs MA)	2.42 min	295,715
	Classification Head 2 (MV vs TR)	1.25 min	295,715
	Classification Head 3 (MA vs TR)	1.83 min	295,715
	1 Shared Source & 3 lightweight Heads	33.69 min	1,347,260
Baseline	Separate Model (MV vs MA)	16.67 min	1,573,506
	Separate Model (MV vs TR)	10.85 min	1,573,506
	Separate Model (MA vs TR)	9.25 min	1,573,506
	3 Separate end-to-end Models for 3 Tasks	36.77 min	4,720,518