Update app.py

app.py

@@ -1,4 +1,25 @@
 import faiss
+conda install -c conda-forge faiss-cpu
+python3.8 -m venv myenv
+source myenv/bin/activate
+pip install faiss-cpu streamlit numpy
+pip install annoy
+pip install annoy
+from annoy import AnnoyIndex
+
+# Build Annoy index
+def create_annoy_index(embeddings, num_trees=10):
+    index = AnnoyIndex(embeddings.shape[1], 'angular')
+    for i, emb in enumerate(embeddings):
+        index.add_item(i, emb)
+    index.build(num_trees)
+    return index
+
+# Query Annoy index
+def retrieve_relevant_text(query, annoy_index, texts, top_k=3):
+    query_embedding = embedder.encode([query])[0]
+    indices = annoy_index.get_nns_by_vector(query_embedding, top_k)
+    return [texts[i] for i in indices]