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| Autore principale: | |
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| Natura: | Recurso digital |
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| Pubblicazione: |
Zenodo
2025
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| Accesso online: | https://doi.org/10.5281/zenodo.15805243 |
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Sommario:
- <h3>Introduce</h3> <p>An advanced <strong>oversampling framework (G-SMOTE)</strong> integrating Gaussian Mixture Models (GMM) for noise filtering and directional sample generation, coupled with a <strong>CatBoost-based ensemble model</strong> optimized through Optuna for seismic landslide susceptibility assessment.</p> <p>The framework combining:<br><strong>G-SMOTE</strong>: Gaussian Mixture Model-based oversampling with noise filtering<br><strong>CatBoost</strong>: Gradient boosting model<br><strong>Optuna</strong>: Automated hyperparameter tuning<br><strong>Benchmarking</strong>: Comparative analysis with 8 ML models</p> <p> </p> <h3>Dataset example</h3> <p>The data contains <strong>11 features</strong> and <strong>1 label column</strong>. Here are the first 3 sample records:</p> <table style="border-collapse: collapse; width: 101.418%; border-width: 1px; margin-left: auto; margin-right: auto; height: 78.3752px;"><colgroup><col style="width: 7.36711%;"><col style="width: 8.57942%;"><col style="width: 8.2064%;"><col style="width: 8.76593%;"><col style="width: 8.39291%;"><col style="width: 7.92664%;"><col style="width: 7.92664%;"><col style="width: 8.57942%;"><col style="width: 9.13895%;"><col style="width: 8.76593%;"><col style="width: 8.11315%;"><col style="width: 8.2064%;"></colgroup> <tbody> <tr style="height: 19.5938px; text-align: center;"> <td style="height: 14.0pt; width: 42pt;">dem</td> <td style="width: 74pt;">slope</td> <td style="width: 51pt;">aspect</td> <td style="width: 80pt;">curvature</td> <td style="width: 61pt;">dis_river</td> <td style="width: 61pt;">dis_road</td> <td style="width: 61pt;">dis_fault</td> <td style="width: 80pt;">ndvi</td> <td style="width: 80pt;">ndwi</td> <td style="width: 74pt;">rainfall</td> <td style="width: 64pt;">lithology</td> <td style="width: 39pt;">S/N</td> </tr> <tr style="height: 19.5938px; text-align: center;"> <td style="height: 19.5938px; width: 42pt; text-align: center; vertical-align: middle;">1909</td> <td style="width: 74pt; height: 19.5938px; text-align: center; vertical-align: middle;">3.321429968</td> <td style="width: 51pt; height: 19.5938px; text-align: center; vertical-align: middle;">7</td> <td style="width: 80pt; height: 19.5938px; text-align: center; vertical-align: middle;">0.333332986</td> <td style="width: 61pt; height: 19.5938px; text-align: center; vertical-align: middle;">1</td> <td style="width: 61pt; height: 19.5938px; text-align: center; vertical-align: middle;">1</td> <td style="width: 61pt; height: 19.5938px; text-align: center; vertical-align: middle;">7</td> <td style="width: 80pt; height: 19.5938px; text-align: center; vertical-align: middle;">0.188406006</td> <td style="width: 80pt; height: 19.5938px; text-align: center; vertical-align: middle;">-0.205881998</td> <td style="width: 74pt; height: 19.5938px; text-align: center; vertical-align: middle;">16.99189949</td> <td style="width: 64pt; height: 19.5938px; text-align: center; vertical-align: middle;">1</td> <td style="width: 39pt; height: 19.5938px; text-align: center; vertical-align: middle;">1</td> </tr> <tr style="height: 19.5938px; text-align: center;"> <td style="height: 19.5938px; text-align: center; vertical-align: middle;">1533</td> <td style="height: 19.5938px; text-align: center; vertical-align: middle;">26.28409958</td> <td style="height: 19.5938px; text-align: center; vertical-align: middle;">2</td> <td style="height: 19.5938px; text-align: center; vertical-align: middle;">1</td> <td style="height: 19.5938px; text-align: center; vertical-align: middle;">10</td> <td style="height: 19.5938px; text-align: center; vertical-align: middle;">6</td> <td style="height: 19.5938px; text-align: center; vertical-align: middle;">1</td> <td style="height: 19.5938px; text-align: center; vertical-align: middle;">0.555555999</td> <td style="height: 19.5938px; text-align: center; vertical-align: middle;">-0.465115994</td> <td style="height: 19.5938px; text-align: center; vertical-align: middle;">17.3010006</td> <td style="height: 19.5938px; text-align: center; vertical-align: middle;">12</td> <td style="height: 19.5938px; text-align: center; vertical-align: middle;">1</td> </tr> <tr style="height: 19.5938px; text-align: center;"> <td style="height: 19.5938px; width: 42pt; text-align: center; vertical-align: middle;">2504</td> <td style="width: 74pt; text-align: center; vertical-align: middle; height: 19.5938px;">11.54629993</td> <td style="width: 51pt; text-align: center; vertical-align: middle; height: 19.5938px;">7</td> <td style="width: 80pt; text-align: center; vertical-align: middle; height: 19.5938px;">0</td> <td style="width: 61pt; text-align: center; vertical-align: middle; height: 19.5938px;">1</td> <td style="width: 61pt; text-align: center; vertical-align: middle; height: 19.5938px;">5</td> <td style="width: 61pt; text-align: center; vertical-align: middle; height: 19.5938px;">1</td> <td style="width: 80pt; text-align: center; vertical-align: middle; height: 19.5938px;">0.507246017</td> <td style="width: 80pt; text-align: center; vertical-align: middle; height: 19.5938px;">-0.485713989</td> <td style="width: 74pt; text-align: center; vertical-align: middle; height: 19.5938px;">15.8987999</td> <td style="width: 64pt; text-align: center; vertical-align: middle; height: 19.5938px;">3</td> <td style="width: 39pt; text-align: center; vertical-align: middle; height: 19.5938px;">0</td> </tr> </tbody> </table> <p> </p>