Add SFM config

qlib/contrib/model/pytorch_sfm.py

@@ -21,11 +21,12 @@ from ...model.base import Model
 from ...data.dataset import DatasetH
 from ...data.dataset.handler import DataHandlerLP
 
+
 class SFM_Model(nn.Module):
-    def __init__(self, d_feat=6, output_dim = 1, freq_dim = 10, hidden_size = 64, dropout_W = 0.0, dropout_U = 0.0, device = "cpu"):
+    def __init__(self, d_feat=6, output_dim=1, freq_dim=10, hidden_size=64, dropout_W=0.0, dropout_U=0.0, device="cpu"):
         super().__init__()
 
-        self.input_dim  = d_feat
+        self.input_dim = d_feat
         self.output_dim = output_dim
         self.freq_dim = freq_dim
         self.hidden_dim = hidden_size
@@ -56,22 +57,22 @@ class SFM_Model(nn.Module):
 
         self.W_p = nn.Parameter(init.xavier_uniform_(torch.empty(self.hidden_dim, self.output_dim)))
         self.b_p = nn.Parameter(torch.zeros(self.output_dim))
-        
+
         self.activation = nn.Tanh()
         self.inner_activation = nn.Hardsigmoid()
         self.dropout_W, self.dropout_U = (dropout_W, dropout_U)
         self.fc_out = nn.Linear(self.output_dim, 1)
 
         self.states = []
-    
+
     def forward(self, input):
-        input = input.reshape(len(input), self.input_dim, -1) # [N, F, T]
-        input = input.permute(0, 2, 1) # [N, T, F]
+        input = input.reshape(len(input), self.input_dim, -1)  # [N, F, T]
+        input = input.permute(0, 2, 1)  # [N, T, F]
         time_step = input.shape[1]
-        
+
         for ts in range(time_step):
-            x = input[:, ts,:]
-            if(len(self.states)==0): #hasn't initialized yet
+            x = input[:, ts, :]
+            if len(self.states) == 0:  # hasn't initialized yet
                 self.init_states(x)
             self.get_constants(x)
             p_tm1 = self.states[0]
@@ -88,77 +89,79 @@ class SFM_Model(nn.Module):
             x_fre = torch.matmul(x * B_W[0], self.W_fre) + self.b_fre
             x_c = torch.matmul(x * B_W[0], self.W_c) + self.b_c
             x_o = torch.matmul(x * B_W[0], self.W_o) + self.b_o
-            
-            i = self.inner_activation(x_i + torch.matmul(h_tm1 * B_U[0], self.U_i)) # not sure whether I am doing in the right unsquuze
-            
+
+            i = self.inner_activation(
+                x_i + torch.matmul(h_tm1 * B_U[0], self.U_i)
+            )  # not sure whether I am doing in the right unsquuze
 
             ste = self.inner_activation(x_ste + torch.matmul(h_tm1 * B_U[0], self.U_ste))
             fre = self.inner_activation(x_fre + torch.matmul(h_tm1 * B_U[0], self.U_fre))
 
             ste = torch.reshape(ste, (-1, self.hidden_dim, 1))
             fre = torch.reshape(fre, (-1, 1, self.freq_dim))
-            
+
             f = ste * fre
-            
+
             c = i * self.activation(x_c + torch.matmul(h_tm1 * B_U[0], self.U_c))
 
             time = time_tm1 + 1
 
             omega = torch.tensor(2 * np.pi) * time * frequency
 
-            re = torch.cos(omega) 
+            re = torch.cos(omega)
             im = torch.sin(omega)
-            
+
             c = torch.reshape(c, (-1, self.hidden_dim, 1))
 
             S_re = f * S_re_tm1 + c * re
             S_im = f * S_im_tm1 + c * im
-            
+
             A = torch.square(S_re) + torch.square(S_im)
 
             A = torch.reshape(A, (-1, self.freq_dim)).float()
             A_a = torch.matmul(A * B_U[0], self.U_a)
             A_a = torch.reshape(A_a, (-1, self.hidden_dim))
             a = self.activation(A_a + self.b_a)
-            
+
             o = self.inner_activation(x_o + torch.matmul(h_tm1 * B_U[0], self.U_o))
 
             h = o * a
             p = torch.matmul(h, self.W_p) + self.b_p
 
             self.states = [p, h, S_re, S_im, time, None, None, None]
-        self.states = []    
+        self.states = []
         return self.fc_out(p).squeeze()
 
     def init_states(self, x):
         reducer_f = torch.zeros((self.hidden_dim, self.freq_dim)).to(self.device)
         reducer_p = torch.zeros((self.hidden_dim, self.output_dim)).to(self.device)
-        
+
         init_state_h = torch.zeros(self.hidden_dim).to(self.device)
         init_state_p = torch.matmul(init_state_h, reducer_p)
-        
+
         init_state = torch.zeros_like(init_state_h).to(self.device)
         init_freq = torch.matmul(init_state_h, reducer_f)
 
         init_state = torch.reshape(init_state, (-1, self.hidden_dim, 1))
         init_freq = torch.reshape(init_freq, (-1, 1, self.freq_dim))
-        
+
         init_state_S_re = init_state * init_freq
         init_state_S_im = init_state * init_freq
-        
+
         init_state_time = torch.tensor(0).to(self.device)
 
         self.states = [init_state_p, init_state_h, init_state_S_re, init_state_S_im, init_state_time, None, None, None]
 
     def get_constants(self, x):
         constants = []
-        constants.append([torch.tensor(1.).to(self.device) for _ in range(6)])
-        constants.append([torch.tensor(1.).to(self.device) for _ in range(7)])
-        array = np.array([float(ii)/self.freq_dim for ii in range(self.freq_dim)])
+        constants.append([torch.tensor(1.0).to(self.device) for _ in range(6)])
+        constants.append([torch.tensor(1.0).to(self.device) for _ in range(7)])
+        array = np.array([float(ii) / self.freq_dim for ii in range(self.freq_dim)])
         constants.append(torch.tensor(array).to(self.device))
 
         self.states[5:] = constants
 
+
 class SFM(Model):
     """SFM Model
 
@@ -185,7 +188,7 @@ class SFM(Model):
         d_feat=6,
         hidden_size=64,
         output_dim=1,
-        freq_dim = 10,
+        freq_dim=10,
         dropout_W=0.0,
         dropout_U=0.0,
         n_epochs=200,
@@ -221,7 +224,7 @@ class SFM(Model):
         self.lr_decay_steps = lr_decay_steps
         self.optimizer = optimizer.lower()
         self.loss_type = loss
-        self.device = 'cuda:%d'%(GPU) if torch.cuda.is_available() else 'cpu'
+        self.device = "cuda:%d" % (GPU) if torch.cuda.is_available() else "cpu"
         self.use_gpu = torch.cuda.is_available()
         self.seed = seed
 
@@ -229,7 +232,7 @@ class SFM(Model):
             "SFM parameters setting:"
             "\nd_feat : {}"
             "\nhidden_size : {}"
-            "\nfrequency_dimension : {}" 
+            "\nfrequency_dimension : {}"
             "\ndropout_W: {}"
             "\ndropout_U: {}"
             "\nn_epochs : {}"
@@ -269,14 +272,14 @@ class SFM(Model):
         self._scorer = mean_squared_error if loss == "mse" else roc_auc_score
 
         self.sfm_model = SFM_Model(
-            d_feat=self.d_feat, 
-            output_dim = self.output_dim,
-            hidden_size = self.hidden_size, 
-            freq_dim = self.freq_dim, 
-            dropout_W=self.dropout_W, 
-            dropout_U = self.dropout_U, 
-            device = self.device
-            )
+            d_feat=self.d_feat,
+            output_dim=self.output_dim,
+            hidden_size=self.hidden_size,
+            freq_dim=self.freq_dim,
+            dropout_W=self.dropout_W,
+            dropout_U=self.dropout_U,
+            device=self.device,
+        )
         if optimizer.lower() == "adam":
             self.train_optimizer = optim.Adam(self.sfm_model.parameters(), lr=self.lr)
         elif optimizer.lower() == "gd":
@@ -301,14 +304,7 @@ class SFM(Model):
         self._fitted = False
         self.sfm_model.to(self.device)
 
-    def fit(
-        self,
-        dataset: DatasetH,
-        evals_result=dict(),
-        verbose=True,
-        save_path=None,
-        **kwargs
-    ):
+    def fit(self, dataset: DatasetH, evals_result=dict(), verbose=True, save_path=None, **kwargs):
 
         df_train, df_valid = dataset.prepare(
             ["train", "valid"], col_set=["feature", "label"], data_key=DataHandlerLP.DK_L
@@ -398,12 +394,12 @@ class SFM(Model):
                 # update learning rate
                 self.scheduler.step(cur_loss_val)
 
-        if self.device != 'cpu':
+        if self.device != "cpu":
             torch.cuda.empty_cache()
 
     def get_loss(self, pred, target, loss_type):
         if loss_type == "mse":
-            sqr_loss = (pred - target)**2
+            sqr_loss = (pred - target) ** 2
             loss = sqr_loss.mean()
             return loss
         elif loss_type == "binary":
@@ -424,7 +420,7 @@ class SFM(Model):
         self.sfm_model.eval()
 
         with torch.no_grad():
-            if self.device != 'cpu':
+            if self.device != "cpu":
                 preds = self.sfm_model(x_test).detach().cpu().numpy()
             else:
                 preds = self.sfm_model(x_test).detach().numpy()
@@ -447,8 +443,10 @@ class SFM(Model):
             self.sfm_model.load_state_dict(torch.load(_model_path))
         self._fitted = True
 
+
 class AverageMeter(object):
     """Computes and stores the average and current value"""
+
     def __init__(self):
         self.reset()