Update app.py

app.py

@@ -26,7 +26,7 @@ index_loaded = faiss.read_index("sentence_embeddings_index_no_citation.faiss")
 
 device = 0 if torch.cuda.is_available() else -1
 if 'model_embedding' not in st.session_state:
-    st.session_state.model_embedding = SentenceTransformer('bkai-foundation-models/vietnamese-bi-encoder', device = device)
+    st.session_state.model_embedding = SentenceTransformer('bkai-foundation-models/vietnamese-bi-encoder', device = f"cuda:{device}")