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| 1 | Classification of Soil Types Using Geographic Object-Based Image Analysis and Random Forests显示文摘There is increasing interest in developing automatic procedures to segment landscapes into soil spatial entities that replace conventional, expensive manual procedures for delineating and classifying soils. Geographic object-based image analysis(GEOBIA)partitions remote sensing imagery or digital elevation models into homogeneous image objects based on image segmentation. We used an object-based methodology for the detailed delineation and classification of soil types using digital maps of topography and vegetation as soil covariates, based on the Random Forests(RF) classifier. We compared the object-based method's results with those of a pixel-based classification using the same classifier. We used 18 digital elevation model derivatives and 5 remote sensing indices that were related to vegetation cover and soil. Using 171 soil profiles with their associated environmental variable values,the RF method was used to identify the most important soil type predictors for use in the segmentation process. A stack of rastergeodatasets corresponding to the selected predictors was segmented using a multi-resolution segmentation algorithm, which resulted in homogeneous objects related to soil types. These objects were further classified as soil types using the same method, RF. We also conducted a pixel-based classification using the same classifier and soil profiles, and the resulting maps were assessed in terms of their accuracy using 30% of the soil profiles for validation. We found that GEOBIA was an effective method for soil type mapping, and was superior to the pixel-based approach. The optimized object-based soil map had an overall accuracy of 58%, which was 10% higher than that of the optimized pixel-based map. | Andrei DORNIK Lucian DRAGUT Petru URDEA | 2018 | Pedosphere2018，28，6： | 4 |
| 2 | Isolation and nucleotide sequence of a c DNA encoding the precursor of mouse nerve growth factor显示文摘 | Scott J Selby M Urdea M | 1983 | Nature1983，302，5908： | 1 |
| 3 | Isolation and nucleotide sequence of a cDNA encoding the precursor of mouse nerve growth factor显示文摘 | Scott J Selby M Urdea M Quiroga M Bell GI Rutter WJ | 1983 | Nature1983，302，5908： | 1 |
| 4 | Chemical synthesis of a gene for humanepidermal growth factor and its expression in yeast显示文摘 | Urdea S Merryweather J Barr P | 1983 | Proc Natl Acad Sci USA1983，80，74： | 1 |
| 5 | Branched DNA signal amplification 显示文摘 | Urdea MS | 1994 | Bio- technology (N Y)1994，12，9： | 1 |
| 6 | Chemical syn- thesis of a gene for human epidermal growth factor urogastrone and its expression in yeast显示文摘 | Urdea MS Merryweather JP Mullenbach GT l | 1983 | Proc Natl Acad Sci USA1983，80，： | 1 |
| 7 | Isolationof the yeast calmodulin gene: Calmodulin is an es- sential protein显示文摘 | Davis T N Urdea M S Masiarz F R | 1986 | Cell1986，47，3： | 1 |
| 8 | Quantitative detection of hepatitis C virus RNA with a solid-phase signal amplification method:definition of optimal conditions for specimen collection and clinical application in interferon-treated patients显示文摘 | Davis GL Lau JY Urdea MS | 1994 | Hepatology1994，19，6： | 1 |
| 9 | A comparison of nonradioisotopic hybridization assay using fluorescent, chemiluminescent and enzyme- labeled synthetic oligodeoxyribonucleotide显示文摘 | Urdea MS Warner BD Runing JA | 1988 | Nucleic Acids Res1988，16，： | 1 |
| 10 | Isolation and nucleotide sequence of a cDNA encoding the precursor of mouse nerve growth factor显示文摘 | Scott J Selby M Urdea M | 1983 | Nature1983，302，： | 1 |
| 11 | Validation of a multimarker model for assessing risk of type 2 diabetes from a five-year prospective study of 6784 Danish people (Inter99) 显示文摘 | Urdea M Kolberg J Wilber J | 2009 | J Diabetes Sci Technol2009，3，4： | 1 |
| 12 | Quantitative detection of hepatitis C virus RNA with a solid phase signal amplification method:definition of optimal conditions for specimen collection and clinical application in interferon treated patients显示文摘 | Davis G L Lau J Y Urdea M S | 1994 | Hepatology1994，19，6： | 1 |
| 13 | Requirements for high impact diagnostics in the devel- oping world显示文摘 | URDEA M PENNY L A OLMSTED S S | 2006 | Nature2006，444，： | 1 |
| 14 | A comparison of nonradioisotopic hybridization assay using fluores-cent,chemilu minescent and enzyme-labeled synthetic oligodeoxyribonucleotide pmbes显示文摘 | URDEA M S WARNER B D RUNING J A | 1988 | Nucleic Acids Res1988，16，： | 1 |
| 15 | A comparison of nonradioisotopic hybridization assay using fluorescent,chemiluminescent and enzyme-labeled synthetic oligodeoxyribonucleotide显示文摘 | Urdea M S Warner B D Runing J A | 1988 | Nucleic Acids Res1988，16，： | 1 |
| 16 | Activation of Tumor Necrosis Factor-α System in Chronic Hepatitis C Virus Infection显示文摘 | David R. Nelson Herbert L. Lim Constantine G. Marousis Jane W. S. Fang Gary L. Davis Luping Shen Mickey S. Urdea Janice A. Kolberg Johnson Y. N. Lau | 1997 | Digestive Diseases and Sciences1997，，12： | 1 |
| 17 | Isolation and nucleotide sequence of a cDNA encoding the precursor of mouse nerve growth factor显示文摘 | Scott J Selby M Urdea M | 1983 | Nature1983，302，7： | 1 |
| 18 | Activation of Tumor Necrosis Factor-α System in Chronic Hepatitis C Virus Infection显示文摘 | David R. Nelson Herbert L. Lim Constantine G. Marousis Jane W. S. Fang Gary L. Davis Luping Shen Mickey S. Urdea Janice A. Kolberg Johnson Y. N. Lau | 1997 | Digestive Diseases and Sciences1997，，12： | 1 |
| 19 | Saliva, diagnostics, and dentlstry显示文摘 | Urdea MS Neuwald PD Greenberg BL | 2011 | Adv Dent Res2011，23，4： | 1 |
| 20 | Forks and combs and DNA:the synthesis of branched oligodeoxyribonucleotides显示文摘 | Horn T Urdea M S | 1989 | Nucleic Acids Res1989，17，17： | 1 |
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