3_aggregate_features.ipynb

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   "cell_type": "markdown",
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    "tags": []
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   "source": [
    "# Aggregate MFCC Features\n",
    "\n",
    "Aggregate from n rows par file to 1 (calculate min, max, etc. for each feature)."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "389576b8",
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   "outputs": [],
   "source": [
    "from pathlib import Path\n",
    "\n",
    "import pandas as pd\n",
    "from definitions import BASE_PATH"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "26f640e0",
   "metadata": {
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    "tags": [
     "parameters"
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   "outputs": [],
   "source": [
    "# INPUT_PATH = BASE_PATH / \"tmp\" / \"3_aggregate_features\" / \"input\"\n",
    "# OUTPUT_PATH = BASE_PATH / \"tmp\" / \"3_aggregate_features\" / \"output\"\n",
    "#\n",
    "# INPUT_PATHS: dict[str, str] = {\n",
    "#     \"raw_features\": (INPUT_PATH / \"raw_features.csv\").__str__()\n",
    "# }\n",
    "#\n",
    "# OUTPUT_PATHS: dict[str, str] = {\n",
    "#     \"features\": (OUTPUT_PATH / \"features.csv\").__str__()\n",
    "# }\n",
    "INPUT_PATHS: dict[str, str] = {}\n",
    "OUTPUT_PATHS: dict[str, str] = {}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "0eab6080",
   "metadata": {
    "execution": {
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    "tags": [
     "injected-parameters"
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   "outputs": [],
   "source": [
    "# Parameters\n",
    "INPUT_PATHS = {\n",
    "    \"raw_features\": \"/home/lukas/Programming/uni/bachelorarbeit/dbrepo-ismir/tmp/3_aggregate_features/input/raw_features.csv\"\n",
    "}\n",
    "OUTPUT_PATHS = {\n",
    "    \"aggregated_features\": \"/home/lukas/Programming/uni/bachelorarbeit/dbrepo-ismir/tmp/3_aggregate_features/output/features.csv\"\n",
    "}\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "c5d9d980",
   "metadata": {
    "execution": {
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   "outputs": [],
   "source": [
    "# inputs\n",
    "raw_features = pd.read_csv(INPUT_PATHS[\"raw_features\"], index_col=False)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "99f75f47",
   "metadata": {
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       "      <td>-46.794480</td>\n",
       "      <td>49.352516</td>\n",
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       "      <th>1</th>\n",
       "      <td>classical_10.mp3</td>\n",
       "      <td>classical</td>\n",
       "      <td>-562.85785</td>\n",
       "      <td>-96.164795</td>\n",
       "      <td>-219.259016</td>\n",
       "      <td>53.561838</td>\n",
       "      <td>-0.772320</td>\n",
       "      <td>0.029056</td>\n",
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       "      <td>0.952658</td>\n",
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       "      <th>2</th>\n",
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       "      <td>classical</td>\n",
       "      <td>-536.23737</td>\n",
       "      <td>-61.608826</td>\n",
       "      <td>-177.804114</td>\n",
       "      <td>83.381622</td>\n",
       "      <td>-2.587179</td>\n",
       "      <td>0.000000</td>\n",
       "      <td>190.47589</td>\n",
       "      <td>112.471713</td>\n",
       "      <td>...</td>\n",
       "      <td>-27.335688</td>\n",
       "      <td>27.610388</td>\n",
       "      <td>-0.333233</td>\n",
       "      <td>8.185075</td>\n",
       "      <td>0.208425</td>\n",
       "      <td>-38.095375</td>\n",
       "      <td>31.397880</td>\n",
       "      <td>-1.494916</td>\n",
       "      <td>10.917299</td>\n",
       "      <td>0.020985</td>\n",
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       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>classical_11.mp3</td>\n",
       "      <td>classical</td>\n",
       "      <td>-536.45746</td>\n",
       "      <td>-120.429665</td>\n",
       "      <td>-222.126303</td>\n",
       "      <td>76.246992</td>\n",
       "      <td>-2.402418</td>\n",
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       "      <td>-3.781627</td>\n",
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       "      <th>4</th>\n",
       "      <td>classical_12.mp3</td>\n",
       "      <td>classical</td>\n",
       "      <td>-562.67523</td>\n",
       "      <td>-148.133560</td>\n",
       "      <td>-270.975406</td>\n",
       "      <td>52.191182</td>\n",
       "      <td>-0.366586</td>\n",
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       "      <td>28.490644</td>\n",
       "      <td>-6.242015</td>\n",
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       "      <td>-25.040888</td>\n",
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       "      <th>395</th>\n",
       "      <td>rock_95.mp3</td>\n",
       "      <td>rock</td>\n",
       "      <td>-553.11010</td>\n",
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       "      <td>-7.234634</td>\n",
       "      <td>8.471853</td>\n",
       "      <td>0.753855</td>\n",
       "      <td>-24.712723</td>\n",
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       "      <td>-4.502398</td>\n",
       "      <td>6.687984</td>\n",
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       "      <td>rock</td>\n",
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       "      <td>58.420684</td>\n",
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       "      <td>125.453699</td>\n",
       "      <td>...</td>\n",
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       "      <th>397</th>\n",
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       "      <td>rock</td>\n",
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       "      <td>-5.722825</td>\n",
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       "      <td>-3.356614</td>\n",
       "      <td>8.170526</td>\n",
       "      <td>0.160330</td>\n",
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       "    <tr>\n",
       "      <th>398</th>\n",
       "      <td>rock_98.mp3</td>\n",
       "      <td>rock</td>\n",
       "      <td>-518.64307</td>\n",
       "      <td>53.555115</td>\n",
       "      <td>-45.734517</td>\n",
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       "      <td>-1.705641</td>\n",
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       "      <td>-26.967848</td>\n",
       "      <td>8.714737</td>\n",
       "      <td>-9.511491</td>\n",
       "      <td>5.551820</td>\n",
       "      <td>-0.025604</td>\n",
       "      <td>-23.020084</td>\n",
       "      <td>13.948638</td>\n",
       "      <td>-2.664985</td>\n",
       "      <td>5.051498</td>\n",
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       "    <tr>\n",
       "      <th>399</th>\n",
       "      <td>rock_99.mp3</td>\n",
       "      <td>rock</td>\n",
       "      <td>-544.70310</td>\n",
       "      <td>75.612130</td>\n",
       "      <td>-49.380943</td>\n",
       "      <td>54.045627</td>\n",
       "      <td>-0.863093</td>\n",
       "      <td>-32.930653</td>\n",
       "      <td>191.73538</td>\n",
       "      <td>93.971242</td>\n",
       "      <td>...</td>\n",
       "      <td>-21.929403</td>\n",
       "      <td>17.050608</td>\n",
       "      <td>-5.296691</td>\n",
       "      <td>5.894963</td>\n",
       "      <td>0.390705</td>\n",
       "      <td>-20.983192</td>\n",
       "      <td>29.312023</td>\n",
       "      <td>-0.321836</td>\n",
       "      <td>6.571660</td>\n",
       "      <td>0.384794</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "<p>400 rows × 202 columns</p>\n",
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      "text/plain": [
       "              filename      label      0_min       0_max      0_mean  \\\n",
       "0      classical_1.mp3  classical -530.78436 -163.308350 -302.203167   \n",
       "1     classical_10.mp3  classical -562.85785  -96.164795 -219.259016   \n",
       "2    classical_100.mp3  classical -536.23737  -61.608826 -177.804114   \n",
       "3     classical_11.mp3  classical -536.45746 -120.429665 -222.126303   \n",
       "4     classical_12.mp3  classical -562.67523 -148.133560 -270.975406   \n",
       "..                 ...        ...        ...         ...         ...   \n",
       "395        rock_95.mp3       rock -553.11010   -5.218835 -193.506047   \n",
       "396        rock_96.mp3       rock -541.23600   27.163334 -119.113996   \n",
       "397        rock_97.mp3       rock -518.49500   58.526745  -66.267744   \n",
       "398        rock_98.mp3       rock -518.64307   53.555115  -45.734517   \n",
       "399        rock_99.mp3       rock -544.70310   75.612130  -49.380943   \n",
       "\n",
       "         0_std    0_skew      1_min      1_max      1_mean  ...     38_min  \\\n",
       "0    51.142183 -0.468374   0.000000  178.75162  111.332342  ... -44.098070   \n",
       "1    53.561838 -0.772320   0.029056  259.63270  215.094182  ... -27.458416   \n",
       "2    83.381622 -2.587179   0.000000  190.47589  112.471713  ... -27.335688   \n",
       "3    76.246992 -2.402418   0.000000  159.42575   99.853645  ... -31.774948   \n",
       "4    52.191182 -0.366586   0.000000  194.26416  148.226647  ... -44.843810   \n",
       "..         ...       ...        ...        ...         ...  ...        ...   \n",
       "395  76.869437 -0.201055 -89.948746  201.18045  111.724191  ... -27.043941   \n",
       "396  58.420684 -0.957699  -7.415961  210.49246  125.453699  ... -37.584858   \n",
       "397  65.635619 -0.898026 -58.824410  175.20135   99.288265  ... -29.620445   \n",
       "398  52.444200 -1.705641   0.000000  187.04274   96.440874  ... -26.967848   \n",
       "399  54.045627 -0.863093 -32.930653  191.73538   93.971242  ... -21.929403   \n",
       "\n",
       "        38_max   38_mean     38_std   38_skew     39_min     39_max   39_mean  \\\n",
       "0    47.308060 -3.713503  16.553984  0.230691 -46.794480  49.352516 -2.282116   \n",
       "1    29.811110  0.484271   8.660648 -0.479016 -28.989983  27.533710  0.952658   \n",
       "2    27.610388 -0.333233   8.185075  0.208425 -38.095375  31.397880 -1.494916   \n",
       "3    31.500881 -3.781627   9.191043  0.260886 -22.667440  50.992897  1.600777   \n",
       "4    28.490644 -6.242015  10.546545  0.341848 -25.040888  46.878204  1.844494   \n",
       "..         ...       ...        ...       ...        ...        ...       ...   \n",
       "395  22.451445 -7.234634   8.471853  0.753855 -24.712723  23.410387 -4.502398   \n",
       "396  28.087936 -9.704238   8.447620  0.112760 -38.147890  21.814402 -8.249507   \n",
       "397  26.325895 -5.722825   7.727378  0.207489 -29.497524  25.410654 -3.356614   \n",
       "398   8.714737 -9.511491   5.551820 -0.025604 -23.020084  13.948638 -2.664985   \n",
       "399  17.050608 -5.296691   5.894963  0.390705 -20.983192  29.312023 -0.321836   \n",
       "\n",
       "        39_std   39_skew  \n",
       "0    15.285639  0.171462  \n",
       "1    10.477735 -0.185771  \n",
       "2    10.917299  0.020985  \n",
       "3    10.125545  0.595763  \n",
       "4    11.160392  0.503120  \n",
       "..         ...       ...  \n",
       "395   6.687984  0.238807  \n",
       "396   7.807756  0.071968  \n",
       "397   8.170526  0.160330  \n",
       "398   5.051498 -0.258407  \n",
       "399   6.571660  0.384794  \n",
       "\n",
       "[400 rows x 202 columns]"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "meta_columns = [\"sample\", \"filename\", \"label\"]\n",
    "mfcc_aggregated = raw_features\\\n",
    "    .drop(meta_columns, axis=1, errors='ignore')\\\n",
    "    .groupby(raw_features.filename).agg(['min', 'max', 'mean', 'std', 'skew'])\n",
    "\n",
    "mfcc_meta = pd.DataFrame(raw_features['label'].groupby(raw_features.filename).last())\n",
    "mfcc_meta.columns = pd.MultiIndex.from_arrays([['label'], ['']])    # needed for merge\n",
    "mfcc_merged = pd.merge(mfcc_meta, mfcc_aggregated, left_index=True, right_index=True)\n",
    "\n",
    "# reduce multi index to single index\n",
    "one_level_cols = ['_'.join([str(el) for el in col]) for col in mfcc_merged.columns[1:]]\n",
    "one_level_cols.insert(0, \"label\")\n",
    "\n",
    "mfcc_merged.columns = pd.Index(one_level_cols)\n",
    "mfcc_merged = mfcc_merged.reset_index()\n",
    "mfcc_merged"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "4ac5c765",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2023-08-23T06:59:34.737528Z",
     "iopub.status.busy": "2023-08-23T06:59:34.736821Z",
     "iopub.status.idle": "2023-08-23T06:59:34.883806Z",
     "shell.execute_reply": "2023-08-23T06:59:34.882389Z"
    },
    "papermill": {
     "duration": 0.161635,
     "end_time": "2023-08-23T06:59:34.887044",
     "exception": false,
     "start_time": "2023-08-23T06:59:34.725409",
     "status": "completed"
    },
    "tags": []
   },
   "outputs": [],
   "source": [
    "# outputs\n",
    "aggregated_features_path = Path(OUTPUT_PATHS[\"aggregated_features\"]).resolve()\n",
    "aggregated_features_path.parent.mkdir(parents=True, exist_ok=True)\n",
    "\n",
    "output = mfcc_merged\n",
    "output.to_csv(aggregated_features_path, index=False)"
   ]
  }
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