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浏览/检索结果: 共18条，第1-10条 帮助 限定条件 专题：北京大学    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 An Improved Estimation of Regional Fractional Woody/Herbaceous Cover Using Combined Satellite Data and High-Quality Training Samples 期刊论文 REMOTE SENSING, 2017 Liu, Xu; Liu, Hongyan; Qiu, Shuang; Wu, Xiuchen; Tian, Yuhong; Hao, Qian 收藏  |  浏览/下载：8/0  |  提交时间：2017/12/03 vegetation fractional cover  semi-arid area  MODIS  satellite data integration  spatial sampling design  image classification  Random Forest regression  model performance evaluation  LAND-COVER  INNER-MONGOLIA  MODIS DATA  VEGETATION  SURFACE  STEPPE  FOREST  COEXISTENCE  TOPOGRAPHY  TRANSITION   Classifying natural-language spatial relation terms with random forest algorithm 期刊论文 INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE, 2017 Du, Shihong; Wang, Xiaonan; Feng, Chen-Chieh; Zhang, Xiuyuan 收藏  |  浏览/下载：8/0  |  提交时间：2017/12/03 Natural-language spatial relations  topological terms  metric variables  random forest  social media data  geographical information retrieval  METRIC DETAILS  SOCIAL MEDIA  OBJECTS  INFORMATION   Mining parameter information for building extraction and change detection with very high-resolution imagery and GIS data 期刊论文 GISCIENCE & REMOTE SENSING, 2017 Guo, Zhou; Du, Shihong 收藏  |  浏览/下载：6/0  |  提交时间：2017/12/03 parameter mining  GIS data  VHR imagery  building extraction  change detection  REMOTE-SENSING DATA  SCALE PARAMETER  IKONOS IMAGERY  SURFACE MODELS  CLASSIFICATION  SEGMENTATION  SELECTION  MULTIRESOLUTION  ATTRIBUTES  ALGORITHMS   Segmentation and classification of two-channel C. elegans nucleus-labeled fluorescence images 其他 2017-01-01 Zhao, Mengdi; An, Jie; Li, Haiwen; Zhang, Jiazhi; Li, Shang-Tong; Li, Xue-Mei; Dong, Meng-Qiu; Mao, Heng; Tao, Louis 收藏  |  浏览/下载：116/0  |  提交时间：2017/12/03 C. elegans  Nucleus  Aging  Two-channel fluorescence image  Morphology  Segmentation  Classification  AGE-RELATED-CHANGES  AFFECT LIFE-SPAN  CAENORHABDITIS-ELEGANS  CELL SEGMENTATION  ARCHITECTURE  MORPHOLOGY  INTEGRITY   Serum levels of chemical elements in esophageal squamous cell carcinoma in Anyang, China: a case-control study based on machine learning methods 期刊论文 BMJ OPEN, 2017 Lin, Tong; Liu, Tiebing; Lin, Yucheng; Zhang, Chaoting; Yan, Lailai; Chen, Zhongxue; He, Zhonghu; Wang, Jingyu 收藏  |  浏览/下载：4/0  |  提交时间：2017/12/03 HIGH-RISK AREA  CANCER-DIAGNOSIS  ZINC-DEFICIENCY  TP53 MUTATIONS  KASHMIR VALLEY  COPPER EXCESS  SELENIUM  ASSOCIATION  DISEASE   An Extended Random Walker Approach for Object Extraction by Integrating VGI Data and VHR Image 其他 2016-01-01 Guo, Zhou; Du, Shihong; Habib, Ayman 收藏  |  浏览/下载：3/0  |  提交时间：2017/12/03 GIS  object extraction  random walker (RW)  very-high-resolution (VHR) image  volunteered geographic information (VGI)  BUILDING EXTRACTION  ACCURACY ASSESSMENT  GRAPH CUTS  LAND-COVER  CLASSIFICATION  SEGMENTATION  INFORMATION   Identification of Factors Influencing Locations of Tree Cover Loss and Gain and Their Spatio-Temporally-Variant Importance in the Li River Basin, China 期刊论文 REMOTE SENSING, 2016 Zhang, Yuan; Li, Jun; Qin, Qiming 收藏  |  浏览/下载：4/0  |  提交时间：2017/12/03 random forests  tree cover change  variable importance  tree cover loss  tree cover gain  RANDOM FORESTS  LAND-COVER  TROPICAL DEFORESTATION  DRIVING FORCES  SOCIOECONOMIC DRIVERS  URBAN-GROWTH  REGRESSION  PATTERNS  CLASSIFICATION  ACCURACY   Random Forest Classification of Wetland Landcovers from Multi-Sensor Data in the Arid Region of Xinjiang, China 期刊论文 REMOTE SENSING, 2016 Tian, Shaohong; Zhang, Xianfeng; Tian, Jie; Sun, Quan 收藏  |  浏览/下载：3/0  |  提交时间：2017/12/03 random forest  object-oriented  phenology  arid wetland classification  texture  LAND-COVER CLASSIFICATION  BP NEURAL-NETWORK  POYANG LAKE  LIDAR DATA  IMAGERY  BASIN  AREA  RADAR  TREES   采用随机森林法的天绘数据干旱区城市土地覆盖分类 期刊论文 国土资源遥感, 2016 田绍鸿; 张显峰 收藏  |  浏览/下载：4/0  |  提交时间：2017/12/03 天绘一号(TH-1)  随机森林  特征选择  土地覆盖分类  干旱区  TH-1  random forests  feature selection  land-cover classification  arid regions   An Extended Random Walker Approach for Object Extraction by Integrating VGI Data and VHR Image 期刊论文 Joint Urban Remote Sensing Event (JURSE), 2016 Guo, Zhou; Du, Shihong; Habib, Ayman 收藏  |  浏览/下载：3/0  |  提交时间：2017/12/03 GIS  object extraction  random walker (RW)  very-high-resolution (VHR) image  volunteered geographic information (VGI)  BUILDING EXTRACTION  ACCURACY ASSESSMENT  GRAPH CUTS  LAND-COVER  CLASSIFICATION  SEGMENTATION  INFORMATION