explain

app.py

@@ -285,6 +285,29 @@ With no need for jargon, SSDS delivers tangible value to our fintech operations.
     ![](file=./xgb/error_instance.png)
     for top 5 error, it is possible young age have negative impact and old age has positive impact in price
     
+    ML Observability
+    =============
+    Visualization with Context
+    https://public.tableau.com/app/profile/kevin1619/vizzes
+    
+    Data Validation
+    -----------
+      I led data validation for new data source for legacy model using covariate shift, recall methodology
+      
+      Ensure feature transformation are same in dev and prod environment
+      
+    Unit Testing/Acceptance Testing
+    -----------
+      I led unit testing for model, and discover logical error, improve lift by 50% for small business campaign
+      
+    A/B Testing for lift
+    -----------
+      A/B testing for small business model using statistical approach to ensure lift pass criteria 
+      
+    File/Log Mining
+    -----------
+      I led server observability to understand why server was brought down with event journey map.
+      
 
     """)