[Major] simplify learning rate finder and use log-mean of default and smooth suggestion

[ourownstory]

The LR finder implementation had changed with the transition to using the Lightning implementation. This PR simplifies that implementation and additionally uses the logarithmic mean value of our smooth and the default version.

[github-actions]

Model Benchmark

Benchmark	Metric	main	current	diff
YosemiteTemps	MAE_val	0.59734	0.58159	-2.64%	✅
YosemiteTemps	RMSE_val	0.88884	0.86935	-2.19%	✅
YosemiteTemps	Loss_val	0.00046	0.00044	-4.33%	✅
YosemiteTemps	train_loss	0.00126	0.0012	-4.44%	✅
YosemiteTemps	reg_loss	0	0	0.0%	✅
YosemiteTemps	MAE	0.97461	0.94811	-2.72%	✅
YosemiteTemps	RMSE	1.70806	1.66847	-2.32%	✅
YosemiteTemps	Loss	0.00126	0.0012	-4.44%	✅
YosemiteTemps	time	140.352	137.55	-2.0%	✅
EnergyPriceDaily	MAE_val	5.64247	5.42935	-3.78%	✅
EnergyPriceDaily	RMSE_val	7.19972	6.88991	-4.3%	✅
EnergyPriceDaily	Loss_val	0.02893	0.02655	-8.24%	🎉
EnergyPriceDaily	train_loss	0.02957	0.02758	-6.73%	🎉
EnergyPriceDaily	reg_loss	0	0	0.0%	✅
EnergyPriceDaily	MAE	6.39654	6.15242	-3.82%	✅
EnergyPriceDaily	RMSE	8.56207	8.26192	-3.51%	✅
EnergyPriceDaily	Loss	0.02936	0.02739	-6.73%	🎉
EnergyPriceDaily	time	40.1248	39.8	-0.81%	✅
AirPassengers	MAE_val	30.8306	30.081	-2.43%	✅
AirPassengers	RMSE_val	31.8167	30.9826	-2.62%	✅
AirPassengers	Loss_val	0.01301	0.01234	-5.17%	🎉
AirPassengers	train_loss	0.00071	0.00071	-0.86%	✅
AirPassengers	reg_loss	0	0	0.0%	✅
AirPassengers	MAE	6.88169	6.86203	-0.29%	✅
AirPassengers	RMSE	8.92083	8.81789	-1.15%	✅
AirPassengers	Loss	0.00076	0.00074	-2.27%	✅
AirPassengers	time	9.94	9.73	-2.11%	✅
PeytonManning	MAE_val	0.35533	0.35447	-0.24%	✅
PeytonManning	RMSE_val	0.50396	0.50324	-0.14%	✅
PeytonManning	Loss_val	0.01802	0.01796	-0.32%	✅
PeytonManning	train_loss	0.01466	0.01461	-0.3%	✅
PeytonManning	reg_loss	0	0	0.0%	✅
PeytonManning	MAE	0.34756	0.34738	-0.05%	✅
PeytonManning	RMSE	0.4945	0.49347	-0.21%	✅
PeytonManning	Loss	0.01465	0.01461	-0.3%	✅
PeytonManning	time	25.7366	25.19	-2.12%	✅

Model training plots

Model Training

PeytonManning

YosemiteTemps

AirPassengers

EnergyPriceDaily

[ourownstory]

ready to go