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fuzzy-rules-generator/density_regression.ipynb

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initial
2024-11-01 11:04:05 +04:00
{
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" T Al2O3 TiO2 Density\n",
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],
"source": [
"import pandas as pd\n",
"\n",
"density_train = pd.read_csv(\"data/density_train.csv\", sep=\";\", decimal=\",\")\n",
"density_test = pd.read_csv(\"data/density_test.csv\", sep=\";\", decimal=\",\")\n",
"\n",
"display(density_train.head(3))\n",
"display(density_test.head(3))"
]
},
{
"cell_type": "code",
"execution_count": 3,
"metadata": {},
"outputs": [
{
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" <th>T</th>\n",
" <th>Al2O3</th>\n",
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" T Al2O3 TiO2\n",
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"0 1.06250\n",
"1 1.05979\n",
"2 1.05404\n",
"Name: Density, dtype: float64"
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},
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" <th></th>\n",
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" <th>TiO2</th>\n",
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"text/plain": [
" T Al2O3 TiO2\n",
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"2 25 0.05 0.0"
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"data": {
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"0 1.05696\n",
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"2 1.08438\n",
"Name: Density, dtype: float64"
]
},
"metadata": {},
"output_type": "display_data"
}
],
"source": [
"density_y_train = density_train[\"Density\"]\n",
"density_train = density_train.drop([\"Density\"], axis=1)\n",
"\n",
"display(density_train.head(3))\n",
"display(density_y_train.head(3))\n",
"\n",
"density_y_test = density_test[\"Density\"]\n",
"density_test = density_test.drop([\"Density\"], axis=1)\n",
"\n",
"display(density_test.head(3))\n",
"display(density_y_test.head(3))"
]
},
{
"cell_type": "code",
"execution_count": 4,
"metadata": {},
"outputs": [],
"source": [
"from sklearn.pipeline import make_pipeline\n",
"from sklearn.preprocessing import PolynomialFeatures\n",
"from sklearn import linear_model, tree, neighbors, ensemble\n",
"\n",
"random_state = 9\n",
"\n",
"models = {\n",
" \"linear\": {\"model\": linear_model.LinearRegression(n_jobs=-1)},\n",
" \"linear_poly\": {\n",
" \"model\": make_pipeline(\n",
" PolynomialFeatures(degree=2),\n",
" linear_model.LinearRegression(fit_intercept=False, n_jobs=-1),\n",
" )\n",
" },\n",
" \"linear_interact\": {\n",
" \"model\": make_pipeline(\n",
" PolynomialFeatures(interaction_only=True),\n",
" linear_model.LinearRegression(fit_intercept=False, n_jobs=-1),\n",
" )\n",
" },\n",
" \"ridge\": {\"model\": linear_model.RidgeCV()},\n",
" \"decision_tree\": {\n",
" \"model\": tree.DecisionTreeRegressor(max_depth=7, random_state=random_state)\n",
" },\n",
" \"knn\": {\"model\": neighbors.KNeighborsRegressor(n_neighbors=7, n_jobs=-1)},\n",
" \"random_forest\": {\n",
" \"model\": ensemble.RandomForestRegressor(\n",
" max_depth=7, random_state=random_state, n_jobs=-1\n",
" )\n",
" },\n",
"}"
]
},
{
"cell_type": "code",
"execution_count": 5,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Model: linear\n",
"Model: linear_poly\n",
"Model: linear_interact\n",
"Model: ridge\n",
"Model: decision_tree\n",
"Model: knn\n",
"Model: random_forest\n"
]
}
],
"source": [
"import math\n",
"from sklearn import metrics\n",
"\n",
"for model_name in models.keys():\n",
" print(f\"Model: {model_name}\")\n",
" fitted_model = models[model_name][\"model\"].fit(\n",
" density_train.values, density_y_train.values.ravel()\n",
" )\n",
" y_train_pred = fitted_model.predict(density_train.values)\n",
" y_test_pred = fitted_model.predict(density_test.values)\n",
" models[model_name][\"fitted\"] = fitted_model\n",
" models[model_name][\"train_preds\"] = y_train_pred\n",
" models[model_name][\"preds\"] = y_test_pred\n",
" models[model_name][\"RMSE_train\"] = math.sqrt(\n",
" metrics.mean_squared_error(density_y_train, y_train_pred)\n",
" )\n",
" models[model_name][\"RMSE_test\"] = math.sqrt(\n",
" metrics.mean_squared_error(density_y_test, y_test_pred)\n",
" )\n",
" models[model_name][\"RMAE_test\"] = math.sqrt(\n",
" metrics.mean_absolute_error(density_y_test, y_test_pred)\n",
" )\n",
" models[model_name][\"R2_test\"] = metrics.r2_score(density_y_test, y_test_pred)"
]
},
{
"cell_type": "code",
"execution_count": 6,
"metadata": {},
"outputs": [
{
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" <th class=\"blank level0\" >&nbsp;</th>\n",
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" <th id=\"T_472ca_level0_col1\" class=\"col_heading level0 col1\" >RMSE_test</th>\n",
" <th id=\"T_472ca_level0_col2\" class=\"col_heading level0 col2\" >RMAE_test</th>\n",
" <th id=\"T_472ca_level0_col3\" class=\"col_heading level0 col3\" >R2_test</th>\n",
" </tr>\n",
" </thead>\n",
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" <th id=\"T_472ca_level0_row0\" class=\"row_heading level0 row0\" >linear_poly</th>\n",
" <td id=\"T_472ca_row0_col0\" class=\"data row0 col0\" >0.000319</td>\n",
" <td id=\"T_472ca_row0_col1\" class=\"data row0 col1\" >0.000362</td>\n",
" <td id=\"T_472ca_row0_col2\" class=\"data row0 col2\" >0.016643</td>\n",
" <td id=\"T_472ca_row0_col3\" class=\"data row0 col3\" >0.999965</td>\n",
" </tr>\n",
" <tr>\n",
" <th id=\"T_472ca_level0_row1\" class=\"row_heading level0 row1\" >linear_interact</th>\n",
" <td id=\"T_472ca_row1_col0\" class=\"data row1 col0\" >0.001131</td>\n",
" <td id=\"T_472ca_row1_col1\" class=\"data row1 col1\" >0.001491</td>\n",
" <td id=\"T_472ca_row1_col2\" class=\"data row1 col2\" >0.033198</td>\n",
" <td id=\"T_472ca_row1_col3\" class=\"data row1 col3\" >0.999413</td>\n",
" </tr>\n",
" <tr>\n",
" <th id=\"T_472ca_level0_row2\" class=\"row_heading level0 row2\" >linear</th>\n",
" <td id=\"T_472ca_row2_col0\" class=\"data row2 col0\" >0.002464</td>\n",
" <td id=\"T_472ca_row2_col1\" class=\"data row2 col1\" >0.003261</td>\n",
" <td id=\"T_472ca_row2_col2\" class=\"data row2 col2\" >0.049891</td>\n",
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" <th id=\"T_472ca_level0_row3\" class=\"row_heading level0 row3\" >random_forest</th>\n",
" <td id=\"T_472ca_row3_col0\" class=\"data row3 col0\" >0.002716</td>\n",
" <td id=\"T_472ca_row3_col1\" class=\"data row3 col1\" >0.005575</td>\n",
" <td id=\"T_472ca_row3_col2\" class=\"data row3 col2\" >0.067298</td>\n",
" <td id=\"T_472ca_row3_col3\" class=\"data row3 col3\" >0.991788</td>\n",
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" <th id=\"T_472ca_level0_row4\" class=\"row_heading level0 row4\" >decision_tree</th>\n",
" <td id=\"T_472ca_row4_col0\" class=\"data row4 col0\" >0.000346</td>\n",
" <td id=\"T_472ca_row4_col1\" class=\"data row4 col1\" >0.006433</td>\n",
" <td id=\"T_472ca_row4_col2\" class=\"data row4 col2\" >0.076138</td>\n",
" <td id=\"T_472ca_row4_col3\" class=\"data row4 col3\" >0.989067</td>\n",
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" <tr>\n",
" <th id=\"T_472ca_level0_row5\" class=\"row_heading level0 row5\" >ridge</th>\n",
" <td id=\"T_472ca_row5_col0\" class=\"data row5 col0\" >0.013989</td>\n",
" <td id=\"T_472ca_row5_col1\" class=\"data row5 col1\" >0.015356</td>\n",
" <td id=\"T_472ca_row5_col2\" class=\"data row5 col2\" >0.116380</td>\n",
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" <tr>\n",
" <th id=\"T_472ca_level0_row6\" class=\"row_heading level0 row6\" >knn</th>\n",
" <td id=\"T_472ca_row6_col0\" class=\"data row6 col0\" >0.053108</td>\n",
" <td id=\"T_472ca_row6_col1\" class=\"data row6 col1\" >0.056776</td>\n",
" <td id=\"T_472ca_row6_col2\" class=\"data row6 col2\" >0.217611</td>\n",
" <td id=\"T_472ca_row6_col3\" class=\"data row6 col3\" >0.148414</td>\n",
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" </tbody>\n",
"</table>\n"
],
"text/plain": [
"<pandas.io.formats.style.Styler at 0x21f02523b00>"
]
},
"execution_count": 6,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"reg_metrics = pd.DataFrame.from_dict(models, \"index\")[\n",
" [\"RMSE_train\", \"RMSE_test\", \"RMAE_test\", \"R2_test\"]\n",
"]\n",
"reg_metrics.sort_values(by=\"RMSE_test\").style.background_gradient(\n",
" cmap=\"viridis\", low=1, high=0.3, subset=[\"RMSE_train\", \"RMSE_test\"]\n",
").background_gradient(cmap=\"plasma\", low=0.3, high=1, subset=[\"RMAE_test\", \"R2_test\"])"
]
},
{
"cell_type": "code",
"execution_count": 10,
"metadata": {},
"outputs": [
{
"name": "stderr",
"output_type": "stream",
"text": [
"c:\\Users\\user\\Projects\\python\\fuzzy\\.venv\\Lib\\site-packages\\numpy\\ma\\core.py:2881: RuntimeWarning: invalid value encountered in cast\n",
" _data = np.array(data, dtype=dtype, copy=copy,\n"
]
},
{
"data": {
"text/plain": [
"{'criterion': 'absolute_error', 'max_depth': 7}"
]
},
"execution_count": 10,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"import numpy as np\n",
"from sklearn import model_selection\n",
"\n",
"parameters = {\n",
" \"criterion\": [\"squared_error\", \"absolute_error\", \"friedman_mse\", \"poisson\"],\n",
" \"max_depth\": np.arange(1, 21).tolist()[0::2],\n",
" # \"min_samples_split\": np.arange(2, 11).tolist()[0::2],\n",
"}\n",
"\n",
"grid = model_selection.GridSearchCV(\n",
" tree.DecisionTreeRegressor(random_state=random_state), parameters, n_jobs=-1\n",
")\n",
"\n",
"grid.fit(density_train, density_y_train)\n",
"grid.best_params_"
]
},
{
"cell_type": "code",
"execution_count": 11,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"{'RMSE_test': 0.006433043831746894,\n",
" 'RMAE_test': 0.07613841884048704,\n",
" 'R2_test': 0.989067217447684}"
]
},
"metadata": {},
"output_type": "display_data"
},
{
"data": {
"text/plain": [
"{'RMSE_test': 0.005040505635233745,\n",
" 'RMAE_test': 0.06943469212568175,\n",
" 'R2_test': 0.9932880934907101}"
]
},
"metadata": {},
"output_type": "display_data"
}
],
"source": [
"model = grid.best_estimator_\n",
"y_pred = model.predict(density_test)\n",
"old_metrics = {\n",
" \"RMSE_test\": models[\"decision_tree\"][\"RMSE_test\"],\n",
" \"RMAE_test\": models[\"decision_tree\"][\"RMAE_test\"],\n",
" \"R2_test\": models[\"decision_tree\"][\"R2_test\"],\n",
"}\n",
"new_metrics = {}\n",
"new_metrics[\"RMSE_test\"] = math.sqrt(metrics.mean_squared_error(density_y_test, y_pred))\n",
"new_metrics[\"RMAE_test\"] = math.sqrt(metrics.mean_absolute_error(density_y_test, y_pred))\n",
"new_metrics[\"R2_test\"] = metrics.r2_score(density_y_test, y_pred)\n",
"\n",
"display(old_metrics)\n",
"display(new_metrics)"
]
},
{
"cell_type": "code",
"execution_count": 12,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"|--- Al2O3 <= 0.18\n",
"| |--- TiO2 <= 0.18\n",
"| | |--- T <= 32.50\n",
"| | | |--- TiO2 <= 0.03\n",
"| | | | |--- Al2O3 <= 0.03\n",
"| | | | | |--- T <= 22.50\n",
"| | | | | | |--- value: [1.06]\n",
"| | | | | |--- T > 22.50\n",
"| | | | | | |--- value: [1.06]\n",
"| | | | |--- Al2O3 > 0.03\n",
"| | | | | |--- value: [1.09]\n",
"| | | |--- TiO2 > 0.03\n",
"| | | | |--- T <= 27.50\n",
"| | | | | |--- T <= 22.50\n",
"| | | | | | |--- value: [1.09]\n",
"| | | | | |--- T > 22.50\n",
"| | | | | | |--- value: [1.09]\n",
"| | | | |--- T > 27.50\n",
"| | | | | |--- value: [1.08]\n",
"| | |--- T > 32.50\n",
"| | | |--- TiO2 <= 0.03\n",
"| | | | |--- Al2O3 <= 0.03\n",
"| | | | | |--- T <= 55.00\n",
"| | | | | | |--- T <= 47.50\n",
"| | | | | | | |--- value: [1.05]\n",
"| | | | | | |--- T > 47.50\n",
"| | | | | | | |--- value: [1.04]\n",
"| | | | | |--- T > 55.00\n",
"| | | | | | |--- T <= 62.50\n",
"| | | | | | | |--- value: [1.04]\n",
"| | | | | | |--- T > 62.50\n",
"| | | | | | | |--- value: [1.03]\n",
"| | | | |--- Al2O3 > 0.03\n",
"| | | | | |--- T <= 60.00\n",
"| | | | | | |--- T <= 52.50\n",
"| | | | | | | |--- value: [1.07]\n",
"| | | | | | |--- T > 52.50\n",
"| | | | | | | |--- value: [1.06]\n",
"| | | | | |--- T > 60.00\n",
"| | | | | | |--- T <= 67.50\n",
"| | | | | | | |--- value: [1.06]\n",
"| | | | | | |--- T > 67.50\n",
"| | | | | | | |--- value: [1.05]\n",
"| | | |--- TiO2 > 0.03\n",
"| | | | |--- T <= 50.00\n",
"| | | | | |--- T <= 37.50\n",
"| | | | | | |--- value: [1.08]\n",
"| | | | | |--- T > 37.50\n",
"| | | | | | |--- value: [1.08]\n",
"| | | | |--- T > 50.00\n",
"| | | | | |--- T <= 67.50\n",
"| | | | | | |--- T <= 62.50\n",
"| | | | | | | |--- value: [1.06]\n",
"| | | | | | |--- T > 62.50\n",
"| | | | | | | |--- value: [1.06]\n",
"| | | | | |--- T > 67.50\n",
"| | | | | | |--- value: [1.06]\n",
"| |--- TiO2 > 0.18\n",
"| | |--- T <= 40.00\n",
"| | | |--- T <= 30.00\n",
"| | | | |--- value: [1.22]\n",
"| | | |--- T > 30.00\n",
"| | | | |--- value: [1.21]\n",
"| | |--- T > 40.00\n",
"| | | |--- T <= 60.00\n",
"| | | | |--- T <= 52.50\n",
"| | | | | |--- T <= 47.50\n",
"| | | | | | |--- value: [1.20]\n",
"| | | | | |--- T > 47.50\n",
"| | | | | | |--- value: [1.19]\n",
"| | | | |--- T > 52.50\n",
"| | | | | |--- value: [1.19]\n",
"| | | |--- T > 60.00\n",
"| | | | |--- value: [1.18]\n",
"|--- Al2O3 > 0.18\n",
"| |--- T <= 35.00\n",
"| | |--- T <= 22.50\n",
"| | | |--- value: [1.19]\n",
"| | |--- T > 22.50\n",
"| | | |--- T <= 27.50\n",
"| | | | |--- value: [1.18]\n",
"| | | |--- T > 27.50\n",
"| | | | |--- value: [1.18]\n",
"| |--- T > 35.00\n",
"| | |--- T <= 52.50\n",
"| | | |--- T <= 42.50\n",
"| | | | |--- value: [1.17]\n",
"| | | |--- T > 42.50\n",
"| | | | |--- T <= 47.50\n",
"| | | | | |--- value: [1.17]\n",
"| | | | |--- T > 47.50\n",
"| | | | | |--- value: [1.16]\n",
"| | |--- T > 52.50\n",
"| | | |--- T <= 65.00\n",
"| | | | |--- T <= 57.50\n",
"| | | | | |--- value: [1.16]\n",
"| | | | |--- T > 57.50\n",
"| | | | | |--- value: [1.15]\n",
"| | | |--- T > 65.00\n",
"| | | | |--- value: [1.14]\n",
"\n"
]
}
],
"source": [
"rules = tree.export_text(\n",
" model,\n",
" feature_names=density_train.columns.values.tolist()\n",
")\n",
"print(rules)"
]
},
{
"cell_type": "code",
"execution_count": 13,
"metadata": {},
"outputs": [],
"source": [
"import pickle\n",
"\n",
"pickle.dump(model, open(\"data/dtree.model.sav\", \"wb\"))"
]
}
],
"metadata": {
"kernelspec": {
"display_name": ".venv",
"language": "python",
"name": "python3"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.12.7"
}
},
"nbformat": 4,
"nbformat_minor": 2
}
Reference in New Issue Copy Permalink