Update run_pplm-ppi.py

run_pplm-ppi.py

@@ -4,20 +4,20 @@ import torch
 import argparse
 from pplm_ppi import PPLM_PPI
 
-
 def main():
     parser = argparse.ArgumentParser(description="Protein-Protein Interaction Prediction",
                                      epilog="v0.0.1")
 
-    parser.add_argument("seq_pairs_path",
+    parser.add_argument("seqA_path",
                         action="store",
-                        help="Path of paired sequence list")
+                        help="Location of sequence A")
 
-    parser.add_argument("output_path",
+    parser.add_argument("seqB_path",
                         action="store",
-                        help="Path of output file")
+                        help="Location of sequence B")
 
     parser.add_argument("--gpu_id",
+                        "-gpu",
                         type=int,
                         default=0,
                         help="gpu device specified",
@@ -29,71 +29,55 @@ def main():
     assigned_device = "cuda:" + str(args.gpu_id)
     device = assigned_device if torch.cuda.is_available() else "cpu"
 
-    script_dir = os.path.dirname(os.path.abspath(__file__))
-    models_path = [os.path.join(script_dir, "pplm_ppi/models/model" + str(i) + ".pkl") for i in range(1, 6)]
+    model_weights = torch.load(os.path.join(os.path.dirname(os.path.abspath(__file__)), "weights/ppi_models.pkl"), map_location=device)
 
     model = PPLM_PPI()
     model.to(device)
 
     ### Read sequences ###
+    seqA = read_sequence(args.seqA_path)
+    seqB = read_sequence(args.seqB_path)
 
-    last_flag = ''
-    last_seq = ''
-    seq_list = []
-    for line in open(args.seq_pairs_path).readlines():
-        if line.startswith('>'):
-            if last_seq != '':
-                seq_list.append([last_flag, last_seq.split(':')[0], last_seq.split(':')[1]])
-                last_seq = ''
-            last_flag = line.strip()[1:]
-
-        elif len(line.strip()) != 0:
-            last_seq += line.strip()
-
-    if last_seq != '':
-        seq_list.append([last_flag, last_seq.split(':')[0], last_seq.split(':')[1]])
-
-    print("Number of paired sequences:", len(seq_list))
-
-    ### Prediction ###
-    score_list = []
-    for i in range(len(seq_list)):
-        flag = seq_list[i][0]
-        seqA = seq_list[i][1]
-        seqB = seq_list[i][2]
-
+    ### Get pplm features ###
     mean_inter_attn, mean_attn_AA, mean_attn_BB, mean_embed_A, mean_embed_B, max_inter_attn, max_attn_AA, max_attn_BB, max_embed_A, max_embed_B = get_pplm_features(seqA, seqB, device)
 
+    ### Prediction ###
     with torch.no_grad():
         predictions_list = []
-            for model_path in models_path:
-                checkpoint = torch.load(model_path, map_location=device)
-                model.load_state_dict(checkpoint["net"])
+        for model_weight in model_weights['mean']:
+            model.load_state_dict(model_weight)
+            predictions = model(mean_inter_attn, mean_attn_AA, mean_attn_BB, mean_embed_A, mean_embed_B)
+            predictions_ = model(mean_inter_attn, mean_attn_BB, mean_attn_AA, mean_embed_B, mean_embed_A)
+            predictions = (predictions + predictions_) / 2
+            predictions_list.append(predictions)
 
-                predictions = model(mean_inter_attn, mean_attn_AA, mean_attn_BB, mean_embed_A, mean_embed_B, max_inter_attn, max_attn_AA, max_attn_BB, max_embed_A, max_embed_B)
+        for model_weight in model_weights['max']:
+            model.load_state_dict(model_weight)
+            predictions = model(max_inter_attn, max_attn_AA, max_attn_BB, max_embed_A, max_embed_B)
+            predictions_ = model(max_inter_attn, max_attn_BB, max_attn_AA, max_embed_B, max_embed_A)
+            predictions = (predictions + predictions_) / 2
             predictions_list.append(predictions)
 
         predictions = torch.stack(predictions_list)
         predictions = torch.mean(predictions, dim=0).squeeze().cpu().numpy()
 
-            score_list.append([flag, predictions])
-
-    ### Write results ###
-    with open(args.output_path, "w") as f:
-        for i in range(len(score_list)):
-            flag, prediction = score_list[i]
-            f.write(">" + flag + "\n")
-            f.write(f"{prediction:.6f}" + "\n")
+        print("Predicted interaction score:", predictions)
 
 
+def read_sequence(seq_path):
+    seq = ""
+    for line in open(seq_path, "r").readlines():
+        if not line.startswith(">"):
+            seq += line.strip()
 
+    return seq
 
 def get_pplm_features(seqA, seqB, device):
     mian_path = os.path.dirname(__file__)
     sys.path.append(os.path.abspath(mian_path))
 
     from pplm import PPLM, Alphabet
-    model_location = os.path.join(mian_path, 'pplm/models/', 'pplm_t33_650M.pt')
+    model_location = os.path.join(mian_path, 'weights/', 'pplm_t33_650M.pt')
 
     ##### Loading PPLM Model #####
     alphabet = Alphabet.from_architecture()
@@ -146,13 +130,6 @@ def get_pplm_features(seqA, seqB, device):
 
         return mean_inter_attn, mean_attn_AA, mean_attn_BB, mean_embed_A, mean_embed_B, max_inter_attn, max_attn_AA, max_attn_BB, max_embed_A, max_embed_B
 
-def read_sequence(seq_path):
-    seq = ""
-    for line in open(seq_path, "r").readlines():
-        if not line.startswith(">"):
-            seq += line.strip()
-
-    return seq
-
 if __name__ == "__main__":
     main()
+