diff --git a/README.md b/README.md
index 5a920283ed4e2697f08a896529cd5a2cb0071560..74fdd2ce617568c27616fd7d4ac3f07c0652b7d9 100644
--- a/README.md
+++ b/README.md
@@ -167,8 +167,8 @@ python -m paddlerec.run -m ./models/rank/dnn/config.yaml -b backend.yaml
 |   召回   |                [Word2Vec](models/recall/word2vec/model.py)                |      ✓      |      x      |       ✓       |
 |   召回   |                     [SSR](models/recall/ssr/model.py)                     |      ✓      |      ✓      |       ✓       |
 |   召回   |                 [Gru4Rec](models/recall/gru4rec/model.py)                 |      ✓      |      ✓      |       ✓       |
-|   召回   |                 [Youtube_dnn](models/recall/youtube_dnn/model.py)                 |      ✓      |      ✓      |       ✓       |
-|   召回   |                 [Ncf](models/recall/ncf/model.py)                 |      ✓      |      ✓      |       ✓       |
+|   召回   |             [Youtube_dnn](models/recall/youtube_dnn/model.py)             |      ✓      |      ✓      |       ✓       |
+|   召回   |                     [NCF](models/recall/ncf/model.py)                     |      ✓      |      ✓      |       ✓       |
 |   排序   |                      [Dnn](models/rank/dnn/model.py)                      |      ✓      |      x      |       ✓       |
 |   排序   |                   [DeepFM](models/rank/deepfm/model.py)                   |      ✓      |      x      |       ✓       |
 |   排序   |                  [xDeepFM](models/rank/xdeepfm/model.py)                  |      ✓      |      x      |       ✓       |
diff --git a/doc/imgs/overview.png b/doc/imgs/overview.png
index f0d951fddfc6d498ec6b4a0636bdafc95dc966bc..b9d5a172f8c8443c69e338e819fe454f28206ea0 100644
Binary files a/doc/imgs/overview.png and b/doc/imgs/overview.png differ