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| 1 | 基于随机森林算法的多作物同步识别显示文摘作物类型遥感识别是农业遥感的重要组成部分,为获取作物种植面积、长势信息并进行产量估算提供了手段。目前,对玉米、水稻和小麦等大宗农作物进行单一识别或两类间分类识别的技术研究较多,对研究区多种农作物同步分类识别的研究较少。本研究基于随机森林分类器利用Landsat 8数据开展宁夏农作物分类,对八种主要农作物春小麦、玉米、水稻、苜蓿、蔬菜、葡萄、枸杞和瓜类进行同步分类试验。结果表明:随机森林方法可以满足研究区内多类作物同步监测的需求,精度可达80%以上。单时相分类精度可达到81.8%,后分类处理精度可达到82.8%,时间序列分类精度可达到85.1%,时间序列分类和后分类处理可以有效提高分类精度。随机森林分类精度随着树数量的增加而增大,当树的数量足够多时,模型趋于稳定,特征变量对精度的影响被控制在一定范围内,当特征变量设置为总特征变量的平方根或对数时,精度达到最佳。因此,基于对分类实验时效性的考虑,将参数分别设置为Ntree=100,Mtry=总特征变量的平方根或对数。 | 许淇 李启亮 Mathilde De Vroey 张吴平 范锦龙 | 2019 | 山东农业科学2019，51，3： | 6 |
| 2 | Sent2Agri System Based Crop Type Mapping in Yellow River Irrigation Area显示文摘Agricultural monitoring is essential for adequate management of food production and distribution.Crop land and crop type classification,using remote sensing time series,form an important tool to capture the agricultural production information.The recently launched Sentinel-2 satellites provide unprecedented monitoring capacities in terms of spatial resolution,swath width,and revisit frequency.The Sentinel-2 for Agriculture(Sen2-Agri)system has been developed to fully exploit those capacities,by providing four relevant earth observation products for agricultural monitoring.Under the Dragon 4 Program,the crop mapping with various satellite images and a specific focus on the Yellow River irrigated agricultural area in the Ningxia Hui Autonomous Region in China was carried out with the Sentinel-2 for Agriculture system(Sent2Agri).9 types of crops were classified and the crop type map in 2017 was produced based on 35 scenes Sentinel 2A/B images.The overall accuracy computed from the error confusion matrix is 88%,which includes the cropped and uncropped types.After the removal of the uncropped area,the overall accuracy for a cropped decrease to 73%.In order to further improve the crop classification accuracy,the training dataset should be further improved and tuned. | Jinlong FAN Pierre DEFOURNY Qinghan DONG Xiaoyu ZHANG Mathilde De VROEY Nicolas BELLEMANS Qi XU Qiliang LI Lei ZHANG Hao GAO | 2020 | Journal of Geodesy and Geoinformation Science2020，3，4： | 2 |
| 3 | Role of proton pump inhibitors in the occurrence and the prognosis of spontaneous bacterial peritonitis in cirrhotic patients with ascites显示文摘 | Marie Vos Bénédicte Vroey Béatrice Garcia Garcia Clothilde Roy Fran?ois Kidd Jean Henrion Pierre Deltenre | 2013 | Liver Int2013，，9： | 2 |
| 4 | A novel human immunodeficiency virus type 1 reverse transcriptase mutational pattern confers phenotypic lamivudine resistance in the absence of mutation 184V显示文摘 | Hertogs K Bloor S De Vroey V | 2000 | Antimicrob Agents Chemother2000，44，3： | 1 |
| 5 | Twelve weeks of continuous oral therapy for toenail onychomycosis caused by dermatophytes: a double-blind comparative trial of terbinafine 250 mg/day versus itraconazole 200 mg/day 显示文摘 | De Backer M De Vroey C Lesaffre E | 1998 | J Am Acad Dermatol1998，38，53： | 1 |
| 6 | Twelve weeks of continuous oral therapy for toenail onychomycosis caused by dermatophytes: a double-blind comparative trial of terbinafine 250 mg/day versus itraconazole 200 mg/day显示文摘 | De Backer M De Vroey C Lesaffre E | 1998 | J Am Acad Dermatol1998，38，53： | 1 |
| 7 | Corrosion investigations in 2-ethanolamine based post-combustion CO2 capture pilot plants显示文摘 | De Vroey S Huynh H Lepaumier H | 2013 | Energy Proc2013，37，： | 1 |
| 8 | How should I treat an entrapped rotational atherectomy burr显示文摘 | Vroey FD Velavan P Jack SE | | 0，，： | 1 |
| 9 | Bioresorbable Polymeric Vascular Scaffolds: A Cautionary Tale显示文摘 | John A. Ormiston Frederic De Vroey Patrick W. Serruys Mark W.I. Webster | 2011 | Circulation: Cardiovascular Interventions2011，，5： | 1 |
| 10 | Onychomycosis caused bydermatophytes:a double-blind comparative trial of terbinafine 250mg/day versusitraconazole 200 mg/day显示文摘 | De Backer M De Vroey C Lesaffre E | 1998 | J Am Acad Dermatol1998，38，53： | 1 |
| 11 | Twelve weeks of continuous oral therapy for toenail onychomycosis caused by dermatophytes:adouble-blind comparative trial of tebinafine 250mg/day versus Itraconazole 200mg/day显示文摘 | De Backer M De Vroey C Lesaffre E | 1998 | J Am Acad Dermatol1998，38，53： | 1 |
| 12 | Editorial:Anti-biotics earlier,IBD later显示文摘 | De Vroey B De Cassan C Gower-Rousseau C | | 0，，12： | 1 |
| 13 | Bioresorbable polymeric vascular scaffolds: A cautionary tale显示文摘 | ORMISTON J A DE VROEY F SURRUYS P W | 2011 | Cite Cardiovasc Interv2011，4，： | 1 |
| 14 | Hepatitis B virus and hepatitis C virus infections in Belgium: similarities and differences in epidemics and initial management显示文摘 | Bénédicte De Vroey Christophe Moreno Wim Laleman Marc van Gossum Isabelle Colle Chantal de Galocsy Philippe Langlet Geert Robaeys Hans Orlent Peter Michielsen Jean Delwaide Hendrik Reynaert Fran?ois D’Heygere Dirk Sprengers Stefan Bourgeois Collins Assene | 2013 | European Journal of Gastroenterology & Hepatology2013，，5： | 1 |
| 15 | Twelve weeks of continuous oral therapy for toenail onychomycosis caused by dermatophytes: a double-blind comparative trial of terbinafine 250 mg/day versus itraconazole 200 rag/day显示文摘 | de BACKER M de VROEY C I EASFFRE E | 1998 | J Am Acad Dermatol1998，38，53： | 1 |
| 16 | A novel humanimmunodeficiency virus type 1 reverse transcriptase mutational patternconfers phenotypic lamivudine resistance in the absence of mutation184V显示文摘 | Hertogs K Bloor S De Vroey V | 2000 | Antimicrob Agents Chemother2000，44，3： | 1 |
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