Merge branch 'REPST' of https://github.zhang-heng.com/czzhangheng/TrafficWheel into REPST

config/REPST/PEMS-BAY.yaml

@@ -43,13 +43,14 @@ train:
   early_stop_patience: 15
   epochs: 100
   grad_norm: false
-  loss_func: mae
+  loss_func: mse
+  scheduler: cosineAnnealingLR
+  tmax: 5
   lr_decay: true
   lr_decay_rate: 0.3
   lr_decay_step: "5,20,40,70"
   lr_init: 0.003
   max_grad_norm: 5
-  real_value: true
   weight_decay: 0
   debug: false
   output_dim: 1

utils/initializer.py

@@ -23,21 +23,29 @@ def init_model(args):
 
 
 def init_optimizer(model, args):
-    optimizer = torch.optim.Adam(
+    optim = args.get("optimizer", "Adam")
-        params=model.parameters(),
+    match optim :
-        lr=args["lr_init"],
+        case "Adam":
-        eps=1.0e-8,
+            optimizer = torch.optim.Adam(
-        weight_decay=args["weight_decay"],
+            params=model.parameters(),
-        amsgrad=False,
+            lr=args["lr_init"],
-    )
+            eps=1.0e-8,
-
+            weight_decay=args["weight_decay"],
-    lr_scheduler = None
+            amsgrad=False,
-    if args["lr_decay"]:
-        lr_decay_steps = [int(step) for step in args["lr_decay_step"].split(",")]
-        lr_scheduler = torch.optim.lr_scheduler.MultiStepLR(
-            optimizer=optimizer, milestones=lr_decay_steps, gamma=args["lr_decay_rate"]
         )
     
+    scheduler = args.get("scheduler", "multistepLR")
+    match scheduler:
+        case "multistepLR":
+            lr_scheduler = None
+            if args["lr_decay"]:
+                lr_decay_steps = [int(step) for step in args["lr_decay_step"].split(",")]
+                lr_scheduler = torch.optim.lr_scheduler.MultiStepLR(
+                    optimizer=optimizer, milestones=lr_decay_steps, gamma=args["lr_decay_rate"]
+                )
+        case "cosineAnnealingLR":
+            T_max = args.get("tmax", 5)
+            lr_scheduler = torch.optim.lr_scheduler.CosineAnnealingLR(optimizer=optimizer, T_max=T_max, eta_min=1e-8)
     return optimizer, lr_scheduler