diff --git a/examples/industrial_data_pretraining/paraformer-long/demo.py b/examples/industrial_data_pretraining/bicif_paraformer/demo.py
similarity index 100%
rename from examples/industrial_data_pretraining/paraformer-long/demo.py
rename to examples/industrial_data_pretraining/bicif_paraformer/demo.py
diff --git a/examples/industrial_data_pretraining/paraformer-long/infer.sh b/examples/industrial_data_pretraining/bicif_paraformer/infer.sh
similarity index 100%
rename from examples/industrial_data_pretraining/paraformer-long/infer.sh
rename to examples/industrial_data_pretraining/bicif_paraformer/infer.sh
diff --git a/examples/industrial_data_pretraining/ct-transformer/demo.py b/examples/industrial_data_pretraining/ct_transformer/demo.py
similarity index 100%
rename from examples/industrial_data_pretraining/ct-transformer/demo.py
rename to examples/industrial_data_pretraining/ct_transformer/demo.py
diff --git a/examples/industrial_data_pretraining/ct-transformer/infer.sh b/examples/industrial_data_pretraining/ct_transformer/infer.sh
similarity index 100%
rename from examples/industrial_data_pretraining/ct-transformer/infer.sh
rename to examples/industrial_data_pretraining/ct_transformer/infer.sh
diff --git a/examples/industrial_data_pretraining/fsmn-vad/demo.py b/examples/industrial_data_pretraining/fsmn_vad/demo.py
similarity index 100%
rename from examples/industrial_data_pretraining/fsmn-vad/demo.py
rename to examples/industrial_data_pretraining/fsmn_vad/demo.py
diff --git a/examples/industrial_data_pretraining/fsmn-vad/infer.sh b/examples/industrial_data_pretraining/fsmn_vad/infer.sh
similarity index 100%
rename from examples/industrial_data_pretraining/fsmn-vad/infer.sh
rename to examples/industrial_data_pretraining/fsmn_vad/infer.sh
diff --git a/funasr/models/monotonic_aligner/model.py b/funasr/models/monotonic_aligner/model.py
index cc03ee46a..368d1a402 100644
--- a/funasr/models/monotonic_aligner/model.py
+++ b/funasr/models/monotonic_aligner/model.py
@@ -4,9 +4,6 @@ import torch
 from torch.cuda.amp import autocast
 from typing import Union, Dict, List, Tuple, Optional
 
-from funasr.register import tables
-from funasr.utils import postprocess_utils
-from funasr.utils.datadir_writer import DatadirWriter
 from funasr.models.paraformer.cif_predictor import mae_loss
 from funasr.train_utils.device_funcs import force_gatherable
 from funasr.models.transformer.utils.add_sos_eos import add_sos_eos
@@ -19,7 +16,6 @@ from funasr.models.ctc.ctc import CTC
 from funasr.utils.load_utils import load_audio_and_text_image_video, extract_fbank
 
 
-
 @tables.register("model_classes", "monotonicaligner")
 class MonotonicAligner(torch.nn.Module):
     """