Update app.py

app.py

@@ -151,7 +151,7 @@ def search():
         return jsonify({"categorized_articles": {}, "has_articles": False, "loading": False})
     
     try:
-        results = vector_db.similarity_search_with_relevance_scores(query, k=50, score_threshold=0.7)
+        results = vector_db.similarity_search_with_relevance_scores(query, k=50, score_threshold=0.5)
         enriched_articles = format_articles_from_db_results(results)
 
         categorized_articles = {}