Results 61 to 70 of about 4,321 (173)

Does Linus' Law Apply to Data Quality in Volunteered Street View Imagery (VSVI)? Mechanisms Contributing to VSVI Data Quality Improvement for Environmental Audits

open access: yesTransactions in GIS, Volume 29, Issue 1, February 2025.
ABSTRACT Street View Imagery (SVI) is crucial for urban environmental audits. Although Volunteered Street View Imagery (VSVI) has the potential to provide higher spatial and temporal resolution than traditional SVI, the use of such user‐generated data is currently limited by the inherent spatial heterogeneity in contributions and unclear quality ...
Xinrui Zheng, Mamoru Amemiya
wiley   +1 more source

Accurate attribute mapping from volunteered geographic information: issues of volunteer quantity and quality [PDF]

open access: yes, 2015
Crowdsourcing is a popular means of acquiring data, but the use of such data is limited by concerns with its quality. This is evident within cartography and geographical sciences more generally, with the quality of volunteered geographic information (VGI)
Boyd, D.S.   +7 more
core   +2 more sources

Validation of Regional Positioning Service User Connections as Support in Update Cartography

open access: yesTransactions in GIS, Volume 29, Issue 1, February 2025.
ABSTRACT The significant demand for highly updated geospatial or cartographic information surpasses the capacity of the official agencies responsible for its generation. The procedure for updating official cartography, in some Spanish regions, can take more than three or 4 years.
Cristina Torrecillas   +3 more
wiley   +1 more source

Can social media data be useful in spatial modelling? A case study of ‘museum Tweets’ and visitor flows [PDF]

open access: yes, 2014
This paper explores the potential of volunteered geographical information from social media to inform geographical models of behavior. Based on a case study of museums in Yorkshire, we created a spatial interaction model of visitors to 15 museums from ...
Birkin, M, Lovelace, R, Malleson, N
core  

Digital equity in a crowded tool space: Navigating opportunities and challenges for equitable implementation of conservation technologies

open access: yesConservation Science and Practice, Volume 7, Issue 1, January 2025.
Encouraging more equitable approaches to conservation technologies underpins global priorities for sustainable development by centering and supporting the communities most directly involved in conservation actions. Based on direct feedback from developers and users of these technologies, we establish that not only is improving access and increasing the
Karyn M. Tabor   +6 more
wiley   +1 more source

Open source data mining infrastructure for exploring and analysing OpenStreetMap [PDF]

open access: yes, 2018
OpenStreetMap and other Volunteered Geographic Information datasets have been explored in the last years, with the aim of understanding how their meaning is rendered, of assessing their quality, and of understanding the community-driven process that ...
Mobasheri, Amin   +2 more
core   +1 more source

Big Data (R)evolution in Geography: Complexity Modelling in the Last Two Decades

open access: yesGeography Compass, Volume 18, Issue 11, November 2024.
ABSTRACT The use of data and statistics along with computational systems heralded the beginning of a quantitative revolution in Geography. Use of simulation models (Cellular Automata and Agent‐Based Models) followed in the late 1990s, with ontology and epistemology of complexity theory and modelling being defined a little less than two decades ago.
Liliana Perez, Raja Sengupta
wiley   +1 more source

Characterizing collaborative mapping projects. A methodological framework for analyzing volunteered geographic information and spatial data infrastructure convergence

open access: yesTransactions in GIS, Volume 28, Issue 7, Page 1908-1927, November 2024.
Abstract In this article, we compile and characterize a total of 43 collaborative web map projects by a set of parameters that enable the understanding and comparability of current and future projects. We then develop a comprehensive methodological framework to explore volunteered geographic information (VGI) and spatial data infrastructure (SDI ...
Belén Pedregal   +3 more
wiley   +1 more source

VGI Edit History Reveals Data Trustworthiness and User Reputation [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.Volunteered ...
D’Antonio, Fausto   +2 more
core   +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

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