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Efficient GGO-XGBoost Optimization for Heart Failure Survival Prediction | ||
| Journal of Algorithms and Computation | ||
| دوره 58، شماره 1، مهر 2026، صفحه 82-90 اصل مقاله (486.55 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/jac.2026.107817 | ||
| نویسندگان | ||
| Amirhossein Fallah* 1؛ Hannah Pirkhedri2؛ MohammadMehdi Momen3 | ||
| 1Department of Computer Engineering, K. N. Toosi University of Technology, Tehran, Iran. | ||
| 2Department of Computer Engineering, Bu-Ali Sina University, Hamedan, Iran | ||
| 3Department of Computer Engineering, Isfahan University of Technology, Isfahan, Iran | ||
| چکیده | ||
| Heart failure mortality-outcome prediction requires models that are both clinically sensitive and methodologically re liable, especially when class imbalance and data leakage can distort performance estimates. This study proposes an efficient leakage-controlled GGO-XGBoost framework for binary mortality-outcome prediction using the UCI heart failure clinical records dataset. The outcome is defined by DEATH_EVENT, where class 0 indicates survival during follow-up and class 1 indicates death during follow-up. The proposed framework combines pipeline-based preprocess ing, training-only imbalance handling, and stability-aware Greylag Goose Optimization for tuning XGBoost hyperpa rameters. Logistic Regression, SVM, Random Forest, and baseline XGBoost are used as comparative models under the same evaluation protocol. On the independent test set, the optimized GGO-XGBoost model achieved AUC 0.8768, re call 0.7895, F1-score 0.7317, accuracy 0.8167, and precision 0.6818. These results suggest that constrained metaheuristic optimization can improve clinically relevant classification behavior in imbalanced heart failure outcome prediction, pro vided that leakage control and conservative model selection are carefully maintained. | ||
| کلیدواژهها | ||
| Heart failure prediction؛ Mortality prediction؛ Greylag Goose Optimization؛ XGBoost؛ Clinical machine learning | ||
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آمار تعداد مشاهده مقاله: 58 تعداد دریافت فایل اصل مقاله: 42 |
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