refactoring

app.py

@@ -9,10 +9,10 @@ from annotated_text import annotation
 from urllib.parse import unquote
 import random
 
-from backend_utils import load_questions, query
-from frontend_utils import (set_state_if_absent, reset_results, 
+from app_utils.backend_utils import load_questions, query
+from app_utils.frontend_utils import (set_state_if_absent, reset_results, 
     SIDEBAR_STYLE, TWIN_PEAKS_IMG_SRC, LAURA_PALMER_IMG_SRC, SPOTIFY_IFRAME)
-from config import RETRIEVER_TOP_K, READER_TOP_K
+from app_utils.config import RETRIEVER_TOP_K, READER_TOP_K, LOW_RELEVANCE_THRESHOLD
 
 def main():
     questions = load_questions()
@@ -109,7 +109,7 @@ def main():
         for result in st.session_state.results['answers']:
             result = result.to_dict()
             if result["answer"]:
-                if alert_irrelevance and result['score'] < 0.50:
+                if alert_irrelevance and result['score'] < LOW_RELEVANCE_THRESHOLD:
                     alert_irrelevance = False
                     st.write("""
                     <h4 style='color: darkred'>Attention, the 

config.py → app_utils/config.py

@@ -6,4 +6,5 @@ RETRIEVER_MODEL_FORMAT = "sentence_transformers"
 READER_MODEL = "deepset/roberta-base-squad2"
 READER_CONFIG_THRESHOLD = 0.15
 RETRIEVER_TOP_K = 10
-READER_TOP_K = 5
+READER_TOP_K = 5
+LOW_RELEVANCE_THRESHOLD = 0.5

frontend_utils.py → app_utils/frontend_utils.py

@@ -1,5 +1,5 @@
 import streamlit as st
-import random
+
 
 def set_state_if_absent(key, value):
     if key not in st.session_state:
@@ -11,19 +11,6 @@ def reset_results(*args):
     st.session_state.results = None
     st.session_state.raw_json = None
 
-def get_random_question(questions):
-    reset_results()
-    question = random.choice(questions)
-    # Avoid picking the same question twice (the change is not visible on the UI)
-    while question == st.session_state.question:
-        question = random.choice(questions)
-    st.session_state.question = question
-    st.session_state.random_question_requested = True
-    # Re-runs the script setting the random question as the textbox value
-    # Unfortunately necessary as the Random Question button is _below_ the textbox
-    raise st.script_runner.RerunException(
-        st.script_request_queue.RerunData(None))
-
 SIDEBAR_STYLE = """
     <style>
     [data-testid="stSidebar"][aria-expanded="true"] > div:first-child{