diff --git a/src/histogram_transfer/pdf_transfer.ipynb b/src/histogram_transfer/pdf_transfer.ipynb
index 3cec70d..8ef4363 100644
--- a/src/histogram_transfer/pdf_transfer.ipynb
+++ b/src/histogram_transfer/pdf_transfer.ipynb
@@ -14,7 +14,7 @@
     "\n",
     "import numpy as np\n",
     "from tqdm import tqdm\n",
-    "from visualisation import display_images, plot_histograms_in_3d\n",
+    "from visualisation import display_images\n",
     "from apply_histogram import apply_histogram\n",
     "from utils import compute_histogram, kldiv\n",
     "import plotly.graph_objects as go\n",
@@ -80,7 +80,7 @@
      "name": "stderr",
      "output_type": "stream",
      "text": [
-      "100%|██████████| 22/22 [00:17<00:00,  1.25it/s]\n"
+      "100%|██████████| 22/22 [00:18<00:00,  1.21it/s]\n"
      ]
     },
     {
@@ -1050,9 +1050,9 @@
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       },
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diff --git a/src/training/__init__.py b/src/training/__init__.py
index deb569a..5e868fb 100644
--- a/src/training/__init__.py
+++ b/src/training/__init__.py
@@ -1,4 +1,4 @@
 from .histogram_dataset import HistogramDataset
 from .get_next_run_name import get_next_run_name
-from .random_hparam_search import random_hparam_search
 from .train import train
+from .train_with_ray import train_with_ray_factory
diff --git a/src/training/histogram_dataset.py b/src/training/histogram_dataset.py
index b7d4d9e..9bf8f66 100644
--- a/src/training/histogram_dataset.py
+++ b/src/training/histogram_dataset.py
@@ -56,10 +56,7 @@ class HistogramDataset(Dataset):
         original_idx = idx // self._edit_count
         edit_idx = idx % self._edit_count
 
-        edited_histogram = None
-        original_histogram = None
         cached_data_path = None
-
         if self._cache_path is not None:
             cached_data_path = self._cache_path / str(original_idx) / f"{edit_idx}.bin"
             cached_data_path.parent.mkdir(parents=True, exist_ok=True)
@@ -89,13 +86,11 @@ class HistogramDataset(Dataset):
                     cached_data_path,
                 )
 
-        result = (
+        return (
             torch.tensor(edited_histogram, dtype=torch.float).unsqueeze(0),
             torch.tensor(original_histogram, dtype=torch.float).unsqueeze(0),
         )
 
-        return result
-
     @staticmethod
     def save_2_histograms(tensor1: np.ndarray, tensor2: np.ndarray, path: Path):
         flat_array1 = tensor1.flatten().astype(np.float32)
diff --git a/src/training/random_hparam_search.py b/src/training/random_hparam_search.py
deleted file mode 100644
index e6c9819..0000000
--- a/src/training/random_hparam_search.py
+++ /dev/null
@@ -1,57 +0,0 @@
-from datetime import timedelta
-import logging
-from pathlib import Path
-from random import choice
-from itertools import count
-import json
-from typing import Any, Dict, List
-from .train import train
-from .get_next_run_name import get_next_run_name
-from models import save_model
-from .get_data_loader import get_data_loader
-import torch
-
-
-def random_hparam_search(
-    hyperparameters: List[Dict[str, Any]],
-    train_data_paths: List[Path],
-    test_data_paths: List[Path],
-    models_path: Path,
-    tensorboard_path: Path,
-    timeout_hours: int,
-    device: torch.device,
-) -> None:
-    for _ in count():
-        run_id = get_next_run_name(tensorboard_path)
-        current_hyperparameters = {
-            k: v.rvs() if hasattr(v, "rvs") else choice(v)
-            for k, v in choice(hyperparameters).items()
-        }
-        serialized_hparams = json.dumps(
-            current_hyperparameters, indent=2, sort_keys=True
-        )
-        logging.info(f"Starting {run_id} with hparams {serialized_hparams}")
-
-        log_dir = tensorboard_path / run_id
-
-        try:
-            model = train(
-                hyperparameters=current_hyperparameters,
-                train_data_paths=train_data_paths,
-                test_data_paths=test_data_paths,
-                max_duration=timedelta(hours=timeout_hours),
-                log_dir=log_dir,
-                use_tqdm=False,
-                device=device,
-                **current_hyperparameters,
-            )
-            model_path = models_path / run_id
-            save_model(model, current_hyperparameters, model_path)
-            del model
-        except KeyboardInterrupt as e:
-            logging.info("Interrupted, stopping")
-            break
-        except Exception as e:
-            logging.error(
-                f"Error with hparams {current_hyperparameters}:\n\t{e}", stack_info=True
-            )