搜索结果: 1-12 共查到“知识库 geographic data”相关记录12条 . 查询时间(0.07 秒)
BUILDING A GEOGRAPHIC DATA REPOSITORY FOR URBAN RESEARCH WITH FREE SOFTWARE – LEARNING FROM Observatorio.CEDEUS.cl
Data Repository Spatial Data Infrastructure (SDI) Free Software GeoNode Urban Research
2017/8/10
The recent trend towards open data and open science as well as a demand for holistic and interdisciplinary research requires platforms that allow the distribution and exchange of research data, includ...
IMPROVEMENT EVALUATION ON CERAMIC ROOF EXTRACTION USING WORLDVIEW-2 IMAGERY AND GEOGRAPHIC DATA MINING APPROACH
Geographical Data Mining GEOBIA WorldView-2 Ceramic roof C4.5 Decision Tree Classification accuracy
2016/11/24
Advances in geotechnologies and in remote sensing have improved analysis of urban environments. The new sensors are increasingly suited to urban studies, due to the enhancement in spatial, spectral an...
THE TRADE-OFF BETWEEN PRIVACY AND GEOGRAPHIC DATA RESOLUTION. A CASE OF GPS TRAJECTORIES COMBINED WITH THE SOCIAL SURVEY RESULTS
GPS trajectories privacy locational privacy
2016/7/8
Trajectory datasets are being generated in great volumes due to high levels of Global Positioning System (GPS) and Location-Based Services (LBS) use. Such data are increasingly being collected for a v...
A VERSION-SIMILARITY BASED TRUST DEGREE COMPUTATION MODEL FOR CROWDSOURCING GEOGRAPHIC DATA
Crowdsourcing Geographic Data Trust Degree Reputation
2016/7/8
Quality evaluation and control has become the main concern of VGI. In this paper, trust is used as a proxy of VGI quality, a version-similarity based trust degree computation model for crowdsourcing g...
Demand for up-to-date geographic data is increasing due to the fast growth of Geographic Information System (GIS) technology. GIS requires up-to-date data in order to provide reliable answers to geogr...
Federal Geographic Data Committee Homeland Security Working Group
Federal Geographic Data Committee Homeland Security Working Group
2015/12/18
The Federal Geographic Data Committee (FGDC) Homeland Security Working Group (HSWG) ensures that the National Spatial Data Infrastructure (NSDI) supports the preparation for, prevention of, protection...
Multi-Representation Geographic Data Organization Method Dedicated for Vector-Based WebGIS
Multi-Representation Data Structure Vector Data Zoom Quadtree Vector Pyramid WebGIS WFS
2015/12/17
The paper proposed a Quadtree-based vector data structure which supports multi-representation of geographic data: Zoom Quadtree, it aims to meet the requirement of vector-based WebGIS in efficient ret...
Modeling and Implementation of Navigable Geographic Framework Data - Construction of Road Network Based on Fundamental Geographic Data
Navigable Geographic Framework Data Data Modeling Road Network Fundamental Geographic Data
2015/10/12
Navigable geographic framework data functions as the geo-spatial referencing framework that integrates traffic maneuver and POI(s).
The main difference between the navigable geographic framework and...
Estimating the spatial distribution of PM2.5 concentration by integrating geographic data and field measurements
Air pollution remote sensing dust surface industrial polluting source correlation analysis multivariate regression analysis
2015/7/27
Air quality directly affects the health and living of human beings, and it receives wide concern of public and attaches great important of governments at all levels. The estimation of the concentratio...
USE OF AERIAL IMAGES FOR REGULAR UPDATES OF BUILDINGS IN THE FUNDAMENTAL BASE OF GEOGRAPHIC DATA OF THE CZECH REPUBLIC
Aerial Image Image Matching Point Cloud Digital Surface Model Spectral Classification
2015/4/1
Digital aerial images (DAI) include position, elevation and also spectral information (visible bands and near-infrared band) about the captured area. The aim of this paper is to present the possibilit...
IMPROVING VOLUNTEERED GEOGRAPHIC DATA QUALITY USING SEMANTIC SIMILARITY MEASUREMENTS
Volunteered geographic information Data quality Semantic similarity Semantic heterogeneity OpenStreetMap
2014/4/24
Studies have analysed the quality of volunteered geographic information (VGI) datasets, assessing the positional accuracy of
features and the completeness of specific attributes. While it has been sh...
Integrated Processing of Remotely Sensed and Geographic Data for Land Inventory Purposes
Geographic Data Land Inventory Purposes
2014/4/16
Integrated Processing of Remotely Sensed and Geographic Data for Land Inventory Purposes。