diff --git a/.github/workflows/test_mim.yml b/.github/workflows/test_mim.yml
index b2b212305fe..a57dda8a999 100644
--- a/.github/workflows/test_mim.yml
+++ b/.github/workflows/test_mim.yml
@@ -44,4 +44,4 @@ jobs:
       - name: Build and install
         run: rm -rf .eggs && mim install -e .
       - name: test commands of mim
-        run: mim search mmdetection
+        run: mim search mmdet
diff --git a/configs/cascade_rcnn/metafile.yml b/configs/cascade_rcnn/metafile.yml
index 1007f2eb810..65863259cdd 100644
--- a/configs/cascade_rcnn/metafile.yml
+++ b/configs/cascade_rcnn/metafile.yml
@@ -19,6 +19,26 @@ Collections:
     Code:
       URL: https://github.com/open-mmlab/mmdetection/blob/v2.0.0/mmdet/models/detectors/cascade_rcnn.py#L6
       Version: v2.0.0
+  - Name: Cascade Mask R-CNN
+    Metadata:
+      Training Data: COCO
+      Training Techniques:
+        - SGD with Momentum
+        - Weight Decay
+      Training Resources: 8x V100 GPUs
+      Architecture:
+        - Cascade R-CNN
+        - FPN
+        - RPN
+        - ResNet
+        - RoIAlign
+    Paper:
+      URL: http://dx.doi.org/10.1109/tpami.2019.2956516
+      Title: 'Cascade R-CNN: Delving into High Quality Object Detection'
+    README: configs/cascade_rcnn/README.md
+    Code:
+      URL: https://github.com/open-mmlab/mmdetection/blob/v2.0.0/mmdet/models/detectors/cascade_rcnn.py#L6
+      Version: v2.0.0
 
 Models:
   - Name: cascade_rcnn_r50_caffe_fpn_1x_coco
@@ -187,7 +207,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_rcnn_x101_64x4d_fpn_20e_coco/cascade_rcnn_x101_64x4d_fpn_20e_coco_20200509_224357-051557b1.pth
 
   - Name: cascade_mask_rcnn_r50_caffe_fpn_1x_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_r50_caffe_fpn_1x_coco.py
     Metadata:
       Training Memory (GB): 5.9
@@ -204,7 +224,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_mask_rcnn_r50_caffe_fpn_1x_coco/cascade_mask_rcnn_r50_caffe_fpn_1x_coco_bbox_mAP-0.412__segm_mAP-0.36_20200504_174659-5004b251.pth
 
   - Name: cascade_mask_rcnn_r50_fpn_1x_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_r50_fpn_1x_coco.py
     Metadata:
       Training Memory (GB): 6.0
@@ -228,7 +248,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_mask_rcnn_r50_fpn_1x_coco/cascade_mask_rcnn_r50_fpn_1x_coco_20200203-9d4dcb24.pth
 
   - Name: cascade_mask_rcnn_r50_fpn_20e_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_r50_fpn_20e_coco.py
     Metadata:
       Training Memory (GB): 6.0
@@ -252,7 +272,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_mask_rcnn_r50_fpn_20e_coco/cascade_mask_rcnn_r50_fpn_20e_coco_bbox_mAP-0.419__segm_mAP-0.365_20200504_174711-4af8e66e.pth
 
   - Name: cascade_mask_rcnn_r101_caffe_fpn_1x_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_r101_caffe_fpn_1x_coco.py
     Metadata:
       Training Memory (GB): 7.8
@@ -269,7 +289,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_mask_rcnn_r101_caffe_fpn_1x_coco/cascade_mask_rcnn_r101_caffe_fpn_1x_coco_bbox_mAP-0.432__segm_mAP-0.376_20200504_174813-5c1e9599.pth
 
   - Name: cascade_mask_rcnn_r101_fpn_1x_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_r101_fpn_1x_coco.py
     Metadata:
       Training Memory (GB): 7.9
@@ -293,7 +313,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_mask_rcnn_r101_fpn_1x_coco/cascade_mask_rcnn_r101_fpn_1x_coco_20200203-befdf6ee.pth
 
   - Name: cascade_mask_rcnn_r101_fpn_20e_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_r101_fpn_20e_coco.py
     Metadata:
       Training Memory (GB): 7.9
@@ -317,7 +337,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_mask_rcnn_r101_fpn_20e_coco/cascade_mask_rcnn_r101_fpn_20e_coco_bbox_mAP-0.434__segm_mAP-0.378_20200504_174836-005947da.pth
 
   - Name: cascade_mask_rcnn_x101_32x4d_fpn_1x_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_x101_32x4d_fpn_1x_coco.py
     Metadata:
       Training Memory (GB): 9.2
@@ -341,7 +361,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_mask_rcnn_x101_32x4d_fpn_1x_coco/cascade_mask_rcnn_x101_32x4d_fpn_1x_coco_20200201-0f411b1f.pth
 
   - Name: cascade_mask_rcnn_x101_32x4d_fpn_20e_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_x101_32x4d_fpn_20e_coco.py
     Metadata:
       Training Memory (GB): 9.2
@@ -365,7 +385,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_mask_rcnn_x101_32x4d_fpn_20e_coco/cascade_mask_rcnn_x101_32x4d_fpn_20e_coco_20200528_083917-ed1f4751.pth
 
   - Name: cascade_mask_rcnn_x101_64x4d_fpn_1x_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_x101_64x4d_fpn_1x_coco.py
     Metadata:
       Training Memory (GB): 12.2
@@ -389,7 +409,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_mask_rcnn_x101_64x4d_fpn_1x_coco/cascade_mask_rcnn_x101_64x4d_fpn_1x_coco_20200203-9a2db89d.pth
 
   - Name: cascade_mask_rcnn_x101_64x4d_fpn_20e_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_x101_64x4d_fpn_20e_coco.py
     Metadata:
       Training Memory (GB): 12.2
@@ -406,7 +426,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_mask_rcnn_x101_64x4d_fpn_20e_coco/cascade_mask_rcnn_x101_64x4d_fpn_20e_coco_20200512_161033-bdb5126a.pth
 
   - Name: cascade_mask_rcnn_r50_caffe_fpn_mstrain_3x_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_r50_caffe_fpn_mstrain_3x_coco.py
     Metadata:
       Training Memory (GB): 5.7
@@ -423,7 +443,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_mask_rcnn_r50_caffe_fpn_mstrain_3x_coco/cascade_mask_rcnn_r50_caffe_fpn_mstrain_3x_coco_20210707_002651-6e29b3a6.pth
 
   - Name: cascade_mask_rcnn_r50_fpn_mstrain_3x_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_r50_fpn_mstrain_3x_coco.py
     Metadata:
       Training Memory (GB): 5.9
@@ -440,7 +460,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_mask_rcnn_r50_fpn_mstrain_3x_coco/cascade_mask_rcnn_r50_fpn_mstrain_3x_coco_20210628_164719-5bdc3824.pth
 
   - Name: cascade_mask_rcnn_r101_caffe_fpn_mstrain_3x_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_r101_caffe_fpn_mstrain_3x_coco.py
     Metadata:
       Training Memory (GB): 7.7
@@ -457,7 +477,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_mask_rcnn_r101_caffe_fpn_mstrain_3x_coco/cascade_mask_rcnn_r101_caffe_fpn_mstrain_3x_coco_20210707_002620-a5bd2389.pth
 
   - Name: cascade_mask_rcnn_r101_fpn_mstrain_3x_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_r101_fpn_mstrain_3x_coco.py
     Metadata:
       Training Memory (GB): 7.8
@@ -474,7 +494,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_mask_rcnn_r101_fpn_mstrain_3x_coco/cascade_mask_rcnn_r101_fpn_mstrain_3x_coco_20210628_165236-51a2d363.pth
 
   - Name: cascade_mask_rcnn_x101_32x4d_fpn_mstrain_3x_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_x101_32x4d_fpn_mstrain_3x_coco.py
     Metadata:
       Training Memory (GB): 9.0
@@ -491,7 +511,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_mask_rcnn_x101_32x4d_fpn_mstrain_3x_coco/cascade_mask_rcnn_x101_32x4d_fpn_mstrain_3x_coco_20210706_225234-40773067.pth
 
   - Name: cascade_mask_rcnn_x101_32x8d_fpn_mstrain_3x_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_x101_32x8d_fpn_mstrain_3x_coco.py
     Metadata:
       Training Memory (GB): 12.1
@@ -508,7 +528,7 @@ Models:
     Weights: https://download.openmmlab.com/mmdetection/v2.0/cascade_rcnn/cascade_mask_rcnn_x101_32x8d_fpn_mstrain_3x_coco/cascade_mask_rcnn_x101_32x8d_fpn_mstrain_3x_coco_20210719_180640-9ff7e76f.pth
 
   - Name: cascade_mask_rcnn_x101_64x4d_fpn_mstrain_3x_coco
-    In Collection: Cascade R-CNN
+    In Collection: Cascade Mask R-CNN
     Config: configs/cascade_rcnn/cascade_mask_rcnn_x101_64x4d_fpn_mstrain_3x_coco.py
     Metadata:
       Training Memory (GB): 12.0