Table 17: Complete results of long-term forecasting tasks for the cross-domain setting of forecasting the future  $O \in \{ {96},{192},{336},{720}\}$  time points based on the past 336 time points. All the results of baselines are based on the encoder utilized in their original papers. The standard deviations of SimMTM are within 0.005 for MSE and within 0.004 for MAE.
ModelsMetric	SimMTM	Random init.	Ti-MAE [21]	TST [56]	LaST [42]	TF-C [57]	CoST [46]	TS2Vec [55]
MSE	MAE	MSE	MAE	MSE	MAE	MSE	MAE	MSE	MAE	MSE	MAE	MSE	MAE	MSE	MAE
ETTh2↓ETTh1	96	0.372	0.401	0.380	0.412	0.703	0.562	0.653	0.468	0.362	0.420	0.596	0.569	0.378	0.421	0.849	0.694
192	0.414	0.425	0.416	0.434	0.715	0.567	0.658	0.502	0.426	0.478	0.614	0.621	0.424	0.451	0.909	0.738
336	0.429	0.436	0.448	0.458	0.733	0.579	0.631	0.561	0.522	0.509	0.694	0.664	0.651	0.582	1.082	0.775
720	0.446	0.458	0.481	0.487	0.762	0.622	0.638	0.608	0.460	0.478	0.635	0.683	0.883	0.701	0.934	0.769
Avg	0.415	0.430	0.431	0.448	0.728	0.583	0.645	0.535	0.443	0.471	0.635	0.634	0.584	0.539	0.944	0.744
ETTm1↓ETTh1	96	0.367	0.398	0.380	0.412	0.715	0.581	0.627	0.477	0.360	0.374	0.666	0.647	0.423	0.450	0.991	0.765
192	0.396	0.421	0.416	0.434	0.729	0.587	0.628	0.500	0.381	0.371	0.672	0.653	0.641	0.578	0.829	0.699
336	0.471	0.437	0.448	0.458	0.712	0.583	0.683	0.554	0.472	0.531	0.626	0.711	0.863	0.694	0.971	0.787
720	0.454	0.463	0.481	0.487	0.747	0.627	0.642	0.600	0.490	0.488	0.835	0.797	1.071	0.805	1.037	0.820
Avg	0.422	0.430	0.431	0.448	0.726	0.595	0.645	0.533	0.426	0.441	0.700	0.702	0.750	0.632	0.957	0.768
ETTm2↓ETTh1	96	0.388	0.421	0.380	0.412	0.699	0.566	0.559	0.489	0.428	0.454	0.968	0.738	0.377	0.419	0.783	0.669
192	0.419	0.423	0.416	0.434	0.722	0.573	0.600	0.579	0.427	0.497	1.080	0.801	0.422	0.450	0.828	0.691
336	0.435	0.444	0.448	0.458	0.714	0.569	0.677	0.572	0.528	0.540	1.091	0.824	0.648	0.580	0.990	0.762
720	0.468	0.474	0.481	0.487	0.760	0.611	0.694	0.664	0.527	0.537	1.226	0.893	0.880	0.699	0.985	0.783
Avg	0.428	0.441	0.431	0.448	0.724	0.580	0.632	0.576	0.503	0.507	1.091	0.814	0.582	0.537	0.896	0.726
Weather↓ETTh1	96	0.477	0.444	0.380	0.412	-	-	-	-	-	-	-	-	-	-	-
192	0.454	0.522	0.416	0.434	-	-	-	-	-	-	-	-	-	-	-
336	0.424	0.434	0.448	0.458	-	-	-	-	-	-	-	-	-	-	-
720	0.468	0.469	0.481	0.487	-	-	-	-	-	-	-	-	-	-	-
Avg	0.456	0.467	0.431	0.448	-	-	-	-	-	-	-	-	-	-	-
ETTh1↓ETTh1	96	0.290	0.348	0.295	0.346	0.667	0.521	0.425	0.381	0.295	0.387	0.672	0.600	0.248	0.332	0.605	0.561
192	0.327	0.372	0.333	0.374	0.561	0.479	0.495	0.478	0.335	0.379	0.721	0.639	0.336	0.391	0.615	0.561
336	0.357	0.392	0.370	0.398	0.690	0.533	0.456	0.441	0.379	0.363	0.755	0.664	0.381	0.421	0.763	0.677
720	0.409	0.423	0.427	0.431	0.744	0.583	0.554	0.477	0.403	0.431	0.837	0.705	0.469	0.482	0.805	0.664
Avg	0.346	0.384	0.356	0.387	0.666	0.529	0.482	0.444	0.353	0.390	0.746	0.652	0.359	0.407	0.697	0.616
ETTh2↓ETTh1	96	0.322	0.347	0.295	0.346	0.658	0.505	0.449	0.343	0.314	0.396	0.677	0.603	0.253	0.342	0.466	0.480
192	0.332	0.372	0.333	0.374	0.594	0.511	0.477	0.407	0.587	0.545	0.718	0.638	0.367	0.392	0.557	0.532
336	0.394	0.391	0.370	0.398	0.732	0.532	0.407	0.519	0.631	0.584	0.755	0.663	0.388	0.431	0.646	0.576
720	0.411	0.424	0.427	0.431	0.768	0.592	0.557	0.523	0.368	0.429	0.848	0.712	0.498	0.488	0.752	0.638
Avg	0.365	0.384	0.356	0.387	0.688	0.535	0.472	0.448	0.475	0.489	0.750	0.654	0.377	0.413	0.606	0.556
ETTm2↓ETTh1	96	0.297	0.348	0.295	0.346	0.647	0.497	0.471	0.422	0.304	0.388	0.610	0.577	0.239	0.331	0.586	0.515
192	0.332	0.370	0.333	0.374	0.597	0.508	0.495	0.442	0.429	0.494	0.725	0.657	0.339	0.371	0.624	0.562
336	0.364	0.393	0.370	0.398	0.700	0.525	0.455	0.424	0.499	0.523	0.768	0.684	0.371	0.421	1.035	0.806
720	0.410	0.421	0.427	0.431	0.786	0.596	0.498	0.532	0.422	0.450	0.927	0.759	0.467	0.481	0.780	0.669
Avg	0.351	0.383	0.356	0.387	0.682	0.531	0.480	0.455	0.414	0.464	0.758	0.669	0.354	0.401	0.756	0.638
Weather↓ETTh1	96	0.304	0.354	0.295	0.346	-	-	-	-	-	-	-	-	-	-	-
192	0.338	0.375	0.333	0.374	-	-	-	-	-	-	-	-	-	-	-
336	0.371	0.397	0.370	0.398	-	-	-	-	-	-	-	-	-	-	-
720	0.417	0.426	0.427	0.431	-	-	-	-	-	-	-	-	-	-	-
Avg	0.358	0.388	0.356	0.387	-	-	-	-	-	-	-	-	-	-	-