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科研机构
北京大学 [10]
内容类型
期刊论文 [6]
其他 [4]
发表日期
2017 [3]
2015 [2]
2013 [1]
2012 [1]
2009 [2]
2008 [1]
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专题:北京大学
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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
Properties and principles on partial metric spaces
其他
2017-01-01
Han, Suzhen
;
Wu, Jianfeng
;
Zhang, Dong
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
Partial metric space
Metrizable
The Baire category theorem
Ekeland&apos
FIXED-POINT
s variation principle
A Series of Bimetallic Ammonium AlNa Formates
期刊论文
CHEMISTRY-A EUROPEAN JOURNAL, 2017
Yu, Yao
;
Shang, Ran
;
Chen, Sa
;
Wang, Bing-Wu
;
Wang, Zhe-Ming
;
Gao, Song
收藏
  |  
浏览/下载:56/0
  |  
提交时间:2017/12/03
AlNa
bimetallic ammonium metal formate
dielectric properties
phase transition
structure
METAL-ORGANIC FRAMEWORKS
NEGATIVE THERMAL-EXPANSION
PROMINENT DIELECTRIC ANOMALIES
STRUCTURAL PHASE-TRANSITIONS
PEROVSKITE-LIKE
MAGNETIC-PROPERTIES
INORGANIC PEROVSKITES
MECHANICAL-PROPERTIES
COPPER-FORMATE
ZN
Example-Based Materials in Laplace-Beltrami Shape Space
期刊论文
computer graphics forum, 2015
Zhu, Fei
;
Li, Sheng
;
Wang, Guoping
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2015/11/10
deformable simulation
example-based materials
Laplace Beltrami eigen-analysis
DEFORMATION TRANSFER
INTERPOLATION
MESHES
Energy efficiency evaluation of tree-topology 10 gigabit ethernet passive optical network and ring-topology time- and wavelength-division-multiplexed passive optical network
期刊论文
OPTICAL ENGINEERING, 2015
Song, Jingjing
;
Yang, Chuanchuan
;
Zhang, Qingxiang
;
Ma, Zhuang
;
Huang, Xingang
;
Geng, Dan
;
Wang, Ziyu
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
network topology
optical communications
optical systems
networks
COMPARISON BETWEEN PATH LENGTHS TRAVELED BY SOLAR ELECTRONS AND IONS IN GROUND-LEVEL ENHANCEMENT EVENTS
期刊论文
astrophysical journal, 2013
Tan, Lun C.
;
Malandraki, Olga E.
;
Reames, Donald V.
;
Ng, Chee K.
;
Wang, Linghua
;
Patsou, Ioanna
;
Papaioannou, Athanasios
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2015/11/16
acceleration of particles
Sun: coronal mass ejections (CMEs)
Sun: flares
Sun: particle emission
Sun: radio radiation
ENERGETIC PARTICLE EVENTS
CORONAL MASS EJECTIONS
MAGNETIC-FIELD LINES
WIND SPACECRAFT
RELEASE TIMES
RADIO-BURST
TRANSPORT
PLASMA
EARTH
PROPAGATION
Schoen-Yau-Gromov-Lawson theory and isoparametric foliations
其他
2012-01-01
Tang, Zizhou
;
Xie, Yuquan
;
Yan, Wenjiao
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/16
POSITIVE SCALAR CURVATURE
HYPERSURFACES
SPHERES
MANIFOLDS
Direct sampling on surfaces for high quality remeshing
期刊论文
Computer Aided Geometric Design, 2009
Fu, Yan
;
Zhou, Bingfeng
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
Direct sampling on surfaces for high quality remeshing
其他
2009-01-01
Fu, Yan
;
Zhou, Bingfeng
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/10
Poisson-disk
Sampling
Remeshing
WANG TILES
MESHES
ERROR
Direct Sampling on Surfaces for High Quality Remeshing
其他
2008-01-01
Fu, Yan
;
Zhou, Bingfeng
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2015/11/10
sampling
Poisson disk
surface remeshing
WANG TILES
MESHES
ERROR
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