diff --git a/learnware/__init__.py b/learnware/__init__.py
index b140a86..f081fc1 100644
--- a/learnware/__init__.py
+++ b/learnware/__init__.py
@@ -2,7 +2,7 @@ __version__ = "0.1.2.99"
 
 import os
 from .logger import get_module_logger
-from .utils import is_torch_avaliable
+from .utils import is_torch_available
 
 logger = get_module_logger("Initialization")
 
@@ -28,5 +28,5 @@ def init(make_dir: bool = False, tf_loglevel: str = "2", **kwargs):
     # logger.info(f"The tensorflow log level is setted to {tf_loglevel}")
 
 
-if not is_torch_avaliable(verbose=False):
+if not is_torch_available(verbose=False):
     logger.warning("The functionality of learnware is limited due to 'torch' is not installed!")
diff --git a/learnware/market/anchor/__init__.py b/learnware/market/anchor/__init__.py
index c005c0c..d1b8392 100644
--- a/learnware/market/anchor/__init__.py
+++ b/learnware/market/anchor/__init__.py
@@ -1,12 +1,12 @@
 from .organizer import AnchoredOrganizer
 from .user_info import AnchoredUserInfo
 
-from ...utils import is_torch_avaliable
+from ...utils import is_torch_available
 from ...logger import get_module_logger
 
 logger = get_module_logger("market_anchor")
 
-if not is_torch_avaliable(verbose=False):
+if not is_torch_available(verbose=False):
     AnchoredSearcher = None
     logger.warning("AnchoredSearcher is skipped because 'torch' is not installed!")
 else:
diff --git a/learnware/market/easy/__init__.py b/learnware/market/easy/__init__.py
index 63907a9..7495ee5 100644
--- a/learnware/market/easy/__init__.py
+++ b/learnware/market/easy/__init__.py
@@ -1,11 +1,11 @@
 from .organizer import EasyOrganizer
 
-from ...utils import is_torch_avaliable
+from ...utils import is_torch_available
 from ...logger import get_module_logger
 
 logger = get_module_logger("market_easy")
 
-if not is_torch_avaliable(verbose=False):
+if not is_torch_available(verbose=False):
     EasySearcher = None
     EasySemanticChecker = None
     EasyStatChecker = None
diff --git a/learnware/reuse/__init__.py b/learnware/reuse/__init__.py
index ad47c32..8da61ed 100644
--- a/learnware/reuse/__init__.py
+++ b/learnware/reuse/__init__.py
@@ -2,18 +2,18 @@ from .base import BaseReuser
 from .align import AlignLearnware
 
 from ..logger import get_module_logger
-from ..utils import is_torch_avaliable
-from .utils import is_geatpy_avaliable, is_lightgbm_avaliable
+from ..utils import is_torch_available
+from .utils import is_geatpy_available, is_lightgbm_available
 
 logger = get_module_logger("reuse")
 
-if not is_geatpy_avaliable(verbose=False):
+if not is_geatpy_available(verbose=False):
     EnsemblePruningReuser = None
     logger.warning("EnsemblePruningReuser is skipped due to 'geatpy' is not installed!")
 else:
     from .ensemble_pruning import EnsemblePruningReuser
 
-if not is_torch_avaliable(verbose=False):
+if not is_torch_available(verbose=False):
     AveragingReuser = None
     FeatureAugmentReuser = None
     HeteroMapAlignLearnware = None
@@ -26,14 +26,14 @@ else:
     from .feature_augment import FeatureAugmentReuser
     from .hetero import HeteroMapAlignLearnware, FeatureAlignLearnware
 
-if not is_lightgbm_avaliable(verbose=False) or not is_torch_avaliable(verbose=False):
+if not is_lightgbm_available(verbose=False) or not is_torch_available(verbose=False):
     JobSelectorReuser = None
     uninstall_packages = [
         value
         for flag, value in zip(
             [
-                is_lightgbm_avaliable(verbose=False),
-                is_torch_avaliable(verbose=False),
+                is_lightgbm_available(verbose=False),
+                is_torch_available(verbose=False),
             ],
             ["lightgbm", "torch"],
         )
diff --git a/learnware/reuse/utils.py b/learnware/reuse/utils.py
index c227682..a85135f 100644
--- a/learnware/reuse/utils.py
+++ b/learnware/reuse/utils.py
@@ -4,7 +4,7 @@ from ..logger import get_module_logger
 logger = get_module_logger("reuse_utils")
 
 
-def is_geatpy_avaliable(verbose=False):
+def is_geatpy_available(verbose=False):
     try:
         import geatpy
     except ModuleNotFoundError as err:
@@ -16,7 +16,7 @@ def is_geatpy_avaliable(verbose=False):
     return True
 
 
-def is_lightgbm_avaliable(verbose=False):
+def is_lightgbm_available(verbose=False):
     try:
         import lightgbm
     except ModuleNotFoundError as err:
diff --git a/learnware/specification/__init__.py b/learnware/specification/__init__.py
index 6defc3e..81642cf 100644
--- a/learnware/specification/__init__.py
+++ b/learnware/specification/__init__.py
@@ -10,9 +10,9 @@ from .regular import (
 
 from .system import HeteroMapTableSpecification
 
-from ..utils import is_torch_avaliable
+from ..utils import is_torch_available
 
-if not is_torch_avaliable(verbose=False):
+if not is_torch_available(verbose=False):
     generate_stat_spec = None
     generate_rkme_table_spec = None
     generate_rkme_image_spec = None
diff --git a/learnware/specification/regular/__init__.py b/learnware/specification/regular/__init__.py
index c9b087a..0c8b05d 100644
--- a/learnware/specification/regular/__init__.py
+++ b/learnware/specification/regular/__init__.py
@@ -1,5 +1,5 @@
 from .base import RegularStatSpecification
-from ...utils import is_torch_avaliable
+from ...utils import is_torch_available
 
 from .text import RKMETextSpecification
 from .table import RKMETableSpecification, RKMEStatSpecification, rkme_solve_qp
diff --git a/learnware/specification/regular/image/__init__.py b/learnware/specification/regular/image/__init__.py
index e883f99..224d875 100644
--- a/learnware/specification/regular/image/__init__.py
+++ b/learnware/specification/regular/image/__init__.py
@@ -1,23 +1,23 @@
-from .utils import is_torch_optimizer_avaliable, is_torch_vision_avaliable
-from ....utils import is_torch_avaliable
+from .utils import is_torch_optimizer_available, is_torchvision_available
+from ....utils import is_torch_available
 from ....logger import get_module_logger
 
 
 logger = get_module_logger("regular_image_spec")
 
 if (
-    not is_torch_vision_avaliable(verbose=False)
-    or not is_torch_optimizer_avaliable(verbose=False)
-    or not is_torch_avaliable(verbose=False)
+    not is_torchvision_available(verbose=False)
+    or not is_torch_optimizer_available(verbose=False)
+    or not is_torch_available(verbose=False)
 ):
     RKMEImageSpecification = None
     uninstall_packages = [
         value
         for flag, value in zip(
             [
-                is_torch_vision_avaliable(verbose=False),
-                is_torch_optimizer_avaliable(verbose=False),
-                is_torch_avaliable(verbose=False),
+                is_torchvision_available(verbose=False),
+                is_torch_optimizer_available(verbose=False),
+                is_torch_available(verbose=False),
             ],
             ["torchvision", "torch-optimizer", "torch"],
         )
diff --git a/learnware/specification/regular/image/utils.py b/learnware/specification/regular/image/utils.py
index 80c97f2..cd60d96 100644
--- a/learnware/specification/regular/image/utils.py
+++ b/learnware/specification/regular/image/utils.py
@@ -3,7 +3,7 @@ from ....logger import get_module_logger
 logger = get_module_logger("regular_image_spec_utils")
 
 
-def is_torch_optimizer_avaliable(verbose=False):
+def is_torch_optimizer_available(verbose=False):
     try:
         import torch_optimizer
     except ModuleNotFoundError as err:
@@ -13,7 +13,7 @@ def is_torch_optimizer_avaliable(verbose=False):
     return True
 
 
-def is_torch_vision_avaliable(verbose=False):
+def is_torchvision_available(verbose=False):
     try:
         import torchvision
     except ModuleNotFoundError as err:
diff --git a/learnware/specification/regular/table/__init__.py b/learnware/specification/regular/table/__init__.py
index cc4cda9..262e72c 100644
--- a/learnware/specification/regular/table/__init__.py
+++ b/learnware/specification/regular/table/__init__.py
@@ -1,9 +1,9 @@
-from ....utils import is_torch_avaliable
+from ....utils import is_torch_available
 from ....logger import get_module_logger
 
 logger = get_module_logger("regular_table_spec")
 
-if not is_torch_avaliable(verbose=False):
+if not is_torch_available(verbose=False):
     RKMETableSpecification = None
     RKMEStatSpecification = None
     logger.warning("RKMETableSpecification is skipped because torch is not installed!")
diff --git a/learnware/specification/regular/text/__init__.py b/learnware/specification/regular/text/__init__.py
index 3d8c830..d679589 100644
--- a/learnware/specification/regular/text/__init__.py
+++ b/learnware/specification/regular/text/__init__.py
@@ -1,18 +1,18 @@
-from .utils import is_sentence_transformers_avaliable
+from .utils import is_sentence_transformers_available
 
-from ....utils import is_torch_avaliable
+from ....utils import is_torch_available
 from ....logger import get_module_logger
 
 logger = get_module_logger("regular_text_spec")
 
-if not is_sentence_transformers_avaliable(verbose=False) or not is_torch_avaliable(verbose=False):
+if not is_sentence_transformers_available(verbose=False) or not is_torch_available(verbose=False):
     RKMETextSpecification = None
     uninstall_packages = [
         value
         for flag, value in zip(
             [
-                is_sentence_transformers_avaliable(verbose=False),
-                is_torch_avaliable(verbose=False),
+                is_sentence_transformers_available(verbose=False),
+                is_torch_available(verbose=False),
             ],
             ["sentence_transformers", "torch"],
         )
diff --git a/learnware/specification/regular/text/utils.py b/learnware/specification/regular/text/utils.py
index 2052c02..d4568a5 100644
--- a/learnware/specification/regular/text/utils.py
+++ b/learnware/specification/regular/text/utils.py
@@ -3,7 +3,7 @@ from ....logger import get_module_logger
 logger = get_module_logger("regular_text_spec_utils")
 
 
-def is_sentence_transformers_avaliable(verbose=False):
+def is_sentence_transformers_available(verbose=False):
     try:
         import sentence_transformers
     except ModuleNotFoundError as err:
diff --git a/learnware/utils/__init__.py b/learnware/utils/__init__.py
index f37bc03..c118620 100644
--- a/learnware/utils/__init__.py
+++ b/learnware/utils/__init__.py
@@ -1,7 +1,7 @@
 import os
 import zipfile
 
-from .import_utils import is_torch_avaliable
+from .import_utils import is_torch_available
 from .module import get_module_by_module_path
 from .file import read_yaml_to_dict, save_dict_to_yaml
 from .gpu import setup_seed, choose_device
diff --git a/learnware/utils/gpu.py b/learnware/utils/gpu.py
index 395d979..07ab21d 100644
--- a/learnware/utils/gpu.py
+++ b/learnware/utils/gpu.py
@@ -1,5 +1,6 @@
 import random
 import numpy as np
+from .import_utils import is_torch_available
 
 
 def setup_seed(seed):
@@ -48,7 +49,8 @@ def choose_device(cuda_idx=-1):
 
 class CudaManager:
     def __init__(self):
-        pass
+        if is_torch_available(verbose=False):
+            pass
 
     def get_specification_cuda_idx(self):
         pass
diff --git a/learnware/utils/import_utils.py b/learnware/utils/import_utils.py
index 9f4406c..449b727 100644
--- a/learnware/utils/import_utils.py
+++ b/learnware/utils/import_utils.py
@@ -3,7 +3,7 @@ from ..logger import get_module_logger
 logger = get_module_logger("import_utils")
 
 
-def is_torch_avaliable(verbose=False):
+def is_torch_available(verbose=False):
     try:
         import torch
     except ModuleNotFoundError as err: