diff --git a/models/yolov3-spp.yaml b/models/yolov3-spp.yaml
index b45e3df..3dad009 100644
--- a/models/yolov3-spp.yaml
+++ b/models/yolov3-spp.yaml
@@ -1,7 +1,7 @@
 # parameters
 nc: 80  # number of classes
-depth_multiple: 1.0  # expand model depth
-width_multiple: 1.0  # expand layer channels
+depth_multiple: 1.0  # model depth multiple
+width_multiple: 1.0  # layer channel multiple
 
 # anchors
 anchors:
diff --git a/models/yolov5l.yaml b/models/yolov5l.yaml
index a3178f4..f270fdc 100644
--- a/models/yolov5l.yaml
+++ b/models/yolov5l.yaml
@@ -27,19 +27,19 @@ backbone:
 # yolov5 head
 head:
   [[-1, 3, BottleneckCSP, [1024, False]],  # 11
-   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1, 0]],  # 12 (P5/32-large)
+   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1]],  # 12 (P5/32-large)
 
    [-2, 1, nn.Upsample, [None, 2, 'nearest']],
    [[-1, 6], 1, Concat, [1]],  # cat backbone P4
    [-1, 1, Conv, [512, 1, 1]],
    [-1, 3, BottleneckCSP, [512, False]],
-   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1, 0]],  # 17 (P4/16-medium)
+   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1]],  # 17 (P4/16-medium)
 
    [-2, 1, nn.Upsample, [None, 2, 'nearest']],
    [[-1, 4], 1, Concat, [1]],  # cat backbone P3
    [-1, 1, Conv, [256, 1, 1]],
    [-1, 3, BottleneckCSP, [256, False]],
-   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1, 0]],  # 22 (P3/8-small)
+   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1]],  # 22 (P3/8-small)
 
    [[], 1, Detect, [nc, anchors]],  # Detect(P3, P4, P5)
   ]
diff --git a/models/yolov5m.yaml b/models/yolov5m.yaml
index a1ed940..8498004 100644
--- a/models/yolov5m.yaml
+++ b/models/yolov5m.yaml
@@ -27,19 +27,19 @@ backbone:
 # yolov5 head
 head:
   [[-1, 3, BottleneckCSP, [1024, False]],  # 11
-   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1, 0]],  # 12 (P5/32-large)
+   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1]],  # 12 (P5/32-large)
 
    [-2, 1, nn.Upsample, [None, 2, 'nearest']],
    [[-1, 6], 1, Concat, [1]],  # cat backbone P4
    [-1, 1, Conv, [512, 1, 1]],
    [-1, 3, BottleneckCSP, [512, False]],
-   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1, 0]],  # 17 (P4/16-medium)
+   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1]],  # 17 (P4/16-medium)
 
    [-2, 1, nn.Upsample, [None, 2, 'nearest']],
    [[-1, 4], 1, Concat, [1]],  # cat backbone P3
    [-1, 1, Conv, [256, 1, 1]],
    [-1, 3, BottleneckCSP, [256, False]],
-   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1, 0]],  # 22 (P3/8-small)
+   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1]],  # 22 (P3/8-small)
 
    [[], 1, Detect, [nc, anchors]],  # Detect(P3, P4, P5)
   ]
diff --git a/models/yolov5s.yaml b/models/yolov5s.yaml
index 277f734..482d1dd 100644
--- a/models/yolov5s.yaml
+++ b/models/yolov5s.yaml
@@ -27,19 +27,19 @@ backbone:
 # yolov5 head
 head:
   [[-1, 3, BottleneckCSP, [1024, False]],  # 11
-   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1, 0]],  # 12 (P5/32-large)
+   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1]],  # 12 (P5/32-large)
 
    [-2, 1, nn.Upsample, [None, 2, 'nearest']],
    [[-1, 6], 1, Concat, [1]],  # cat backbone P4
    [-1, 1, Conv, [512, 1, 1]],
    [-1, 3, BottleneckCSP, [512, False]],
-   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1, 0]],  # 17 (P4/16-medium)
+   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1]],  # 17 (P4/16-medium)
 
    [-2, 1, nn.Upsample, [None, 2, 'nearest']],
    [[-1, 4], 1, Concat, [1]],  # cat backbone P3
    [-1, 1, Conv, [256, 1, 1]],
    [-1, 3, BottleneckCSP, [256, False]],
-   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1, 0]],  # 22 (P3/8-small)
+   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1]],  # 22 (P3/8-small)
 
    [[], 1, Detect, [nc, anchors]],  # Detect(P3, P4, P5)
   ]
diff --git a/models/yolov5x.yaml b/models/yolov5x.yaml
index 3122d6f..47658e8 100644
--- a/models/yolov5x.yaml
+++ b/models/yolov5x.yaml
@@ -27,19 +27,19 @@ backbone:
 # yolov5 head
 head:
   [[-1, 3, BottleneckCSP, [1024, False]],  # 11
-   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1, 0]],  # 12 (P5/32-large)
+   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1]],  # 12 (P5/32-large)
 
    [-2, 1, nn.Upsample, [None, 2, 'nearest']],
    [[-1, 6], 1, Concat, [1]],  # cat backbone P4
    [-1, 1, Conv, [512, 1, 1]],
    [-1, 3, BottleneckCSP, [512, False]],
-   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1, 0]],  # 17 (P4/16-medium)
+   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1]],  # 17 (P4/16-medium)
 
    [-2, 1, nn.Upsample, [None, 2, 'nearest']],
    [[-1, 4], 1, Concat, [1]],  # cat backbone P3
    [-1, 1, Conv, [256, 1, 1]],
    [-1, 3, BottleneckCSP, [256, False]],
-   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1, 0]],  # 22 (P3/8-small)
+   [-1, 1, nn.Conv2d, [na * (nc + 5), 1, 1]],  # 22 (P3/8-small)
 
    [[], 1, Detect, [nc, anchors]],  # Detect(P3, P4, P5)
   ]