Merge branch 'linUCB' into 'master'

modify linucb

See merge request alpha/physical!133

linucb/views/linucb.py

@@ -61,7 +61,7 @@ class LinUCB:
 
             art_max = tag_list[np.argmax(np.dot(xaT, theta_tmp) + cls.alpha * np.sqrt(np.dot(np.dot(xaT, AaI_tmp), xa)))]
 
-            return [art_max]
+            return [int(art_max)]
         except:
             logging.error("catch exception,err_msg:%s" % traceback.format_exc())
             return []