Update app.py

Add threshold of 0.3 to semantic search

app.py

@@ -147,8 +147,11 @@ if button:
     semantic_all = results[0]
     lexical_all = results[1]
 
+    # 2) Apply a threshold to SEMANTIC results (score >= 0.3)
+    semantic_thresholded = [r for r in semantic_all if r.score >= 0.3]
+    
     # 2) Filter the entire sets
-    filtered_semantic = filter_results(semantic_all, country_filter, region_filter, end_year_range)
+    filtered_semantic = filter_results(semantic_thresholded, country_filter, region_filter, end_year_range)
     filtered_lexical = filter_results(lexical_all, country_filter, region_filter, end_year_range)
 
     filtered_semantic_no_dupe = remove_duplicates(filtered_semantic)
@@ -159,6 +162,10 @@ if button:
     # Check user preference
     if show_exact_matches:
         st.write(f"Showing **Top 10 Lexical Search results** for query: {var}")
+        
+        if not filtered_semantic_no_dupe:
+            st.write("No relevant results found.")
+        else:
         # Show the top 10 from filtered_lexical
         for res in filtered_lexical_no_dupe[:10]:
             project_name = res.payload['metadata'].get('project_name', 'Project Link')