fix lazy domain loading and generation process

dataset.py

@@ -152,6 +152,7 @@ def create_dataset_from_lists(chunks, vocab, max_len):
     :param max_len: 
     :return: 
     """
+
     def get_domain_features_reduced(d):
         return get_domain_features(d[0], vocab, max_len)
 
@@ -230,33 +231,40 @@ def load_or_generate_h5data(h5data, train_data, domain_length, window_size):
     return load_h5dataset(h5data)
 
 
-# TODO: implement csv loading if already generated
 def load_or_generate_domains(train_data, domain_length):
-    char_dict = get_character_dict()
-    user_flow_df = get_user_flow_data(train_data)
+    fn = f"{train_data}_domains.gz"
+
+    try:
+        user_flow_df = pd.read_csv(fn)
+    except Exception:
+        char_dict = get_character_dict()
+        user_flow_df = get_user_flow_data(train_data)
+        user_flow_df.reset_index(inplace=True)
+        user_flow_df = user_flow_df[["domain", "serverLabel", "trustedHits", "virusTotalHits"]].dropna(axis=0,
+                                                                                                       how="any")
+        user_flow_df = user_flow_df.groupby(user_flow_df.domain).mean()
+        user_flow_df.reset_index(inplace=True)
+
+        user_flow_df["clientLabel"] = np.where(
+            np.logical_or(user_flow_df.trustedHits > 0, user_flow_df.virusTotalHits >= 3), True, False)
+        user_flow_df[["serverLabel", "clientLabel"]] = user_flow_df[["serverLabel", "clientLabel"]].astype(bool)
+        user_flow_df = user_flow_df[["domain", "serverLabel", "clientLabel"]]
+
+        user_flow_df.to_csv(fn, compression="gzip")
 
     domain_encs = user_flow_df.domain.apply(lambda d: get_domain_features(d, char_dict, domain_length))
     domain_encs = np.stack(domain_encs)
 
-    user_flow_df = user_flow_df[["domain", "serverLabel", "trustedHits", "virusTotalHits"]].dropna(axis=0, how="any")
-    user_flow_df.reset_index(inplace=True)
-    user_flow_df["clientLabel"] = np.where(
-        np.logical_or(user_flow_df.trustedHits > 0, user_flow_df.virusTotalHits >= 3), 1.0, 0.0)
-    user_flow_df = user_flow_df[["domain", "serverLabel", "clientLabel"]]
-    user_flow_df.groupby(user_flow_df.domain).mean()
-
-    return domain_encs, user_flow_df[["serverLabel", "clientLabel"]].as_matrix()
+    return domain_encs, user_flow_df[["serverLabel", "clientLabel"]].as_matrix().astype(bool)
 
 
-def save_predictions(path, c_pred, s_pred, embd, labels):
+def save_predictions(path, c_pred, s_pred):
     f = h5py.File(path, "w")
     f.create_dataset("client", data=c_pred)
     f.create_dataset("server", data=s_pred)
-    f.create_dataset("embedding", data=embd)
-    f.create_dataset("labels", data=labels)
     f.close()
 
 
 def load_predictions(path):
     f = h5py.File(path, "r")
-    return f["client"], f["server"], f["embedding"], f["labels"]
+    return f["client"], f["server"]

main.py

@@ -194,13 +194,12 @@ def main_test():
     else:
         c_pred = np.zeros(0)
         s_pred = pred
+    dataset.save_predictions(args.future_prediction, c_pred, s_pred)
 
     model = load_model(args.embedding_model)
     domain_encs, labels = dataset.load_or_generate_domains(args.test_data, args.domain_length)
     domain_embedding = model.predict(domain_encs, batch_size=args.batch_size, verbose=1)
-
-    dataset.save_predictions(args.future_prediction, c_pred, s_pred, domain_embedding, labels)
-
+    np.save(args.model_path + "/domain_embds.npy", domain_embedding)
 
 
 def main_visualization():
@@ -213,12 +212,15 @@ def main_visualization():
     try:
         logger.info("plot training curve")
         logs = pd.read_csv(args.train_log)
-        visualize.plot_training_curve(logs, "client", "{}/client_train.png".format(args.model_path))
-        visualize.plot_training_curve(logs, "server", "{}/server_train.png".format(args.model_path))
+        if args.model_output == "client":
+            visualize.plot_training_curve(logs, "", "{}/client_train.png".format(args.model_path))
+        else:
+            visualize.plot_training_curve(logs, "client_", "{}/client_train.png".format(args.model_path))
+            visualize.plot_training_curve(logs, "server_", "{}/server_train.png".format(args.model_path))
     except Exception as e:
         logger.warning(f"could not generate training curves: {e}")
 
-    client_pred, server_pred, domain_embedding, labels = dataset.load_predictions(args.future_prediction)
+    client_pred, server_pred = dataset.load_predictions(args.future_prediction)
     client_pred, server_pred = client_pred.value, server_pred.value
     logger.info("plot pr curve")
     visualize.plot_precision_recall(client_val, client_pred.flatten(), "{}/client_prc.png".format(args.model_path))

visualize.py

@@ -132,11 +132,11 @@ def plot_confusion_matrix(y_true, y_pred, path,
 
 def plot_training_curve(logs, key, path, dpi=600):
     plt.clf()
-    plt.plot(logs[f"{key}_acc"], label="accuracy")
-    plt.plot(logs[f"{key}_f1_score"], label="f1_score")
+    plt.plot(logs[f"{key}acc"], label="accuracy")
+    plt.plot(logs[f"{key}f1_score"], label="f1_score")
 
-    plt.plot(logs[f"val_{key}_acc"], label="accuracy")
-    plt.plot(logs[f"val_{key}_f1_score"], label="val_f1_score")
+    plt.plot(logs[f"val_{key}acc"], label="accuracy")
+    plt.plot(logs[f"val_{key}f1_score"], label="val_f1_score")
 
     plt.xlabel('epoch')
     plt.ylabel('percentage')