feat: implement dynamic threshold scheduling for GraphMixer

layers/SeasonPatch.py

@@ -30,6 +30,10 @@ class SeasonPatch(nn.Module):
                  headdim: int = 64,
                  # Mixergraph 可选超参数
                  thr_graph: float = 0.5,
+                 thr_graph_min: float = None,
+                 thr_graph_max: float = None,
+                 thr_graph_steps: int = 0,
+                 thr_graph_schedule: str = "linear",
                  symmetric_graph: bool = True,
                  degree_rescale: str = "count-sqrt",     # "none" | "count" | "count-sqrt" | "sum"
                  gate_temperature: float = 2./3.,
@@ -38,6 +42,9 @@ class SeasonPatch(nn.Module):
 
         super().__init__()
         
+        # ===== 新增：保存 l0_lambda，防止 reg_loss 访问报错 =====
+        self.l0_lambda = l0_lambda
+
         # Store patch parameters
         self.patch_len = patch_len  # patch 长度
         self.stride = stride        # patch 步幅
@@ -60,6 +67,10 @@ class SeasonPatch(nn.Module):
                 dim=d_model,
                 max_degree=k_graph,
                 thr=thr_graph,
+                thr_min=thr_graph_min,
+                thr_max=thr_graph_max,
+                thr_steps=thr_graph_steps,
+                thr_schedule=thr_graph_schedule,
                 temperature=gate_temperature,
                 tau_attn=tau_attn,
                 symmetric=symmetric_graph,