| 1 | Spatial prediction of landslide susceptibility in western Serbia using hybrid support vector regression(SVR)with GWO,BAT and COA algorithms显示文摘In this study,we developed multiple hybrid machine-learning models to address parameter optimization limitations and enhance the spatial prediction of landslide susceptibility models.We created a geographic information system database,and our analysis results were used to prepare a landslide inventory map containing 359 landslide events identified from Google Earth,aerial photographs,and other validated sources.A support vector regression(SVR)machine-learning model was used to divide the landslide inventory into training(70%)and testing(30%)datasets.The landslide susceptibility map was produced using 14 causative factors.We applied the established gray wolf optimization(GWO)algorithm,bat algorithm(BA),and cuckoo optimization algorithm(COA)to fine-tune the parameters of the SVR model to improve its predictive accuracy.The resultant hybrid models,SVR-GWO,SVR-BA,and SVR-COA,were validated in terms of the area under curve(AUC)and root mean square error(RMSE).The AUC values for the SVR-GWO(0.733),SVR-BA(0.724),and SVR-COA(0.738)models indicate their good prediction rates for landslide susceptibility modeling.SVR-COA had the greatest accuracy,with an RMSE of 0.21687,and SVR-BA had the least accuracy,with an RMSE of 0.23046.The three optimized hybrid models outperformed the SVR model(AUC=0.704,RMSE=0.26689),confirming the ability of metaheuristic algorithms to improve model performance. | Abdul-Lateef Balogun Fatemeh Rezaie Quoc Bao Pham Ljubomir Gigović Siniša Drobnjak Yusuf AAina Mahdi Panahi Shamsudeen Temitope Yekeen Saro Lee | 2021 | Geoscience Frontiers2021，12，3： | 6 |
| 2 | Preliminary report of hepatitis B virus genotype prevalence in Iran显示文摘瞄准:决定在伊朗的肝炎 B 的肝炎 B (HBV ) 遗传型的流行出现抗原(HBsAg ) 搬运人,长期的肝炎 B 和肝脏硬化症的病人。方法:109 个 HBsAg 积极的病人的一个总数在这研究被包括。HBV 遗传型被使用基于反向的杂交原则的 INNO-LiPA 方法论决定。结果:有肝疾病的不同阶段的病人的分发如下:95 (86.4%) 长期的肝炎, 11 (10%) 肝肝硬化,并且 3 (2.7%) 不活跃的搬运人。长期的肝炎和肝肝硬化病人,当 70% 是 HBeAg 否定的时, 26.4% 是 HBeAg 积极的。遗传型 D 是唯一的在所有病人发现的检测类型。结论:分类 HBV 进遗传型不得不划算、临床上相关。我们的学习显示 HBV 遗传型 D 在地中海区域占优势,在附近并且中东,和南亚。为通过国际合作理解 HBV 遗传型的继续的努力将揭示遗传型和他们的临床的关联的进一步的 virological 差别。 | Seyed-Moayed Alavian Hossein Keyvani Mahdi Rezai Neda Ashayeri Homa Mohammad Sadeghi | 2006 | World Journal of Gastroenterology2006，12，32： | 2 |
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