Fix the way to create the dataset

functions.py

@@ -58,7 +58,7 @@ def build_faiss_index(text):
     for item in text_list:
         emb_list.append({"embeddings": get_embeddings(item)})
     # dataset = DatasetDict({'train': emb_list})
-    dataset = Dataset.from_dict(emb_list)
+    dataset = Dataset.from_list(emb_list)
     dataset.add_faiss_index(column="embeddings")
     shared['embeddings_dataset'] = dataset
     print(['build_faiss_index', 'end'])