adding origin article

articles.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:5dc17752da7ed6b9063c046a9ba53b23a4c3cb9fe096b55db7c030c2c674dbbe
-size 16684216
+oid sha256:3354be8aeb199e12bb939b55f8bffdf0d7464ffc5a582ba063907a41aee1ff49
+size 16685105

notebooks_preprocess/preprocess_xml.ipynb

@@ -85,6 +85,10 @@
     "        \n",
     "        # concatenate the columns\n",
     "        dataframe_tmp = pd.concat([dataframe_articles, dataframe_metadata], axis=1)\n",
+    "        \n",
+    "        # add the file name\n",
+    "        dataframe_tmp[\"file_name\"] = f\n",
+    "        \n",
     "        df_articles.append(dataframe_tmp)\n",
     "    \n",
     "    # concatenate all the dataframes\n",