diff --git a/CAT/strategy/__init__.py b/CAT/strategy/__init__.py
index 570173b..ed5137b 100644
--- a/CAT/strategy/__init__.py
+++ b/CAT/strategy/__init__.py
@@ -6,5 +6,4 @@
 from .KLI_strategy import MKLIStrategy
 from .MAAT_strategy import MAATStrategy
 from .BECAT_strategy import BECATstrategy
-from .graph_stratgy import Grstrategy
 
diff --git a/README.md b/README.md
index 3590f60..78424cc 100644
--- a/README.md
+++ b/README.md
@@ -5,13 +5,15 @@ Computerized Adaptive Testing Package, including the following models and strate
   * MaximumFisherInformation (MFI) strategy
   * Kullback-Leibler Information (KLI) strategy
   * Model-Agnostic Adaptive Testing (MAAT) strategy
+  * Bounded Ability Estimation Adaptive Testing (BECAT) strategy
 * Multidimensional Item Response Theory (MIRT)
   * D-Optimality (D-opt) strategy
   * Multivariate Kullback-Leibler Information (MKLI) strategy
   * Model-Agnostic Adaptive Testing (MAAT) strategy
+  * Bounded Ability Estimation Adaptive Testing (BECAT) strategy
 * Neural Cognitive Diagnosis (NCD)
   * Model-Agnostic Adaptive Testing (MAAT) strategy
-
+  * Bounded Ability Estimation Adaptive Testing (BECAT) strategy
 ## Installation
 
 Git and install by `pip`