Results 101 to 110 of about 4,402 (207)

An automated GRASS-based procedure to assess the geometrical accuracy of the OpenStreetMap Paris road network [PDF]

open access: yes, 2016
OpenStreetMap (OSM) is the largest spatial database of the world. One of the most frequently occurring geospatial elements within this database is the road network, whose quality is crucial for applications such as routing and navigation. Several methods
Brovelli, MARIA ANTONIA   +2 more
core   +1 more source

The Role of Volunteered Geographic Information towards 3D Property Cadastral Systems (2): A Purpose Driven Web Application [PDF]

open access: yes, 2016
VGI has not proved to be readily suitable to replace well-established accurate methods and technologies such as those of full standard cadastral surveys. Even so, VGI potentialities as relevant source of geospatial data have been widely acknowledged.
de Almeida, J.-P.   +3 more
core  

Characteristics of Citizen-contributed Geographic Information [PDF]

open access: yes, 2014
Ponencias, comunicaciones y pósters presentados en el 17th AGILE Conference on Geographic Information Science "Connecting a Digital Europe through Location and Place", celebrado en la Universitat Jaume I del 3 al 6 de junio de 2014.Current Internet ...
Lutz, Michael   +2 more
core   +1 more source

Supporting Urban Energy Efficiency with Volunteered Roof Information and the Google Maps API

open access: yesRemote Sensing, 2014
The Heat Energy Assessment Technologies (HEAT) project uses high-resolution airborne thermal imagery, Geographic Object-Based Image Analysis (GEOBIA), and a Geoweb environment to allow the residents of Calgary, Alberta, Canada to visualize the amount and
Bilal Abdulkarim   +2 more
doaj   +1 more source

The National Map [PDF]

open access: yes
The National Map is an online, interactive map service published by the United States Geological Survey (USGS). Users can create and print high-resolution shaded relief maps of a local area, a state, or the entire U.S.

core   +2 more sources

A Web GIS-Based Platform to Harvest Georeferenced Data from Social Networks: Examples of Data Collection Regarding Disaster Events [PDF]

open access: yes, 2018
Whenever disaster situations occur the civil protection authorities need to have fast access to data that may help to plan emergency response. To contribute to the collection and integration of all available data a platform that aims to harvest ...
Cardoso, Alberto   +2 more
core   +2 more sources

Geographic proximity and homophily effects drive social interactions within VGI communities: an example of iNaturalist

open access: yesInternational Journal of Digital Earth
Social interactions among online community members contributing to volunteered geographic information (VGI) are a key element and often crucial to VGI project success.
Guiming Zhang, Xi Gong, Di Zhu
doaj   +1 more source

Checking the Consistency of Volunteered Phenological Observations While Analysing Their Synchrony

open access: yesISPRS International Journal of Geo-Information, 2018
The increasing availability of volunteered geographic information (VGI) enables novel studies in many scientific domains. However, inconsistent VGI can negatively affect these studies.
Hamed Mehdipoor   +3 more
doaj   +1 more source

Citizens as Sensors for Crisis Event: Sensor Web Enablement for Volunteered Geographic Information [PDF]

open access: yes, 2010
A set of developments within the field of geosensors is to engage citizens to act as sensors, thus providing so-called Volunteered Geographic Information (VGI). There is a long tradition of non specialists contributing to the collection of geo-referenced
COX SIMON   +4 more
core  

A software architecture to integrate sensor data and volunteered geographic information for flood risk management [PDF]

open access: yes, 2016
Natural disasters are phenomena that can cause great damage to people in urban and rural areas, and thus require preventive and reactive measures. If they involve multiple sources of information, these measures can be more useful and effective.
Albuquerque, João Porto de   +3 more
core  

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