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144 Results Found

  • Article
  • Open Access
34 Citations
10,519 Views
23 Pages

Towards a Protocol for the Collection of VGI Vector Data

  • Peter Mooney,
  • Marco Minghini,
  • Mari Laakso,
  • Vyron Antoniou,
  • Ana-Maria Olteanu-Raimond and
  • Andriani Skopeliti

A protocol for the collection of vector data in Volunteered Geographic Information (VGI) projects is proposed. VGI is a source of crowdsourced geographic data and information which is comparable, and in some cases better, than equivalent data from Na...

  • Article
  • Open Access
9 Citations
3,105 Views
16 Pages

Quality of GNSS Traces from VGI: A Data Cleaning Method Based on Activity Type and User Experience

  • Aitor Àvila Callau,
  • Yolanda Pérez-Albert and
  • David Serrano Giné

VGI (Volunteered Geographic Information) refers to spatial data collected, created, and shared voluntarily by users. Georeferenced tracks are one of the most common components of VGI, and, as such, are not free from errors. The cleaning of GNSS (Glob...

  • Article
  • Open Access
3 Citations
5,040 Views
37 Pages

Providing long-term data about the evolution of railway networks in Europe may help us understand how European Union (EU) member states behave in the long-term, and how they can comply with present EU recommendations. This paper proposes a methodolog...

  • Article
  • Open Access
111 Citations
13,228 Views
15 Pages

2 September 2015

Volunteered Geographic Information (VGI) such as data derived from the OpenStreetMap (OSM) project is a popular data source for freely available geographic data. Normally, untrained contributors gather these data. This fact is frequently a cause of c...

  • Article
  • Open Access
824 Views
15 Pages

1 October 2025

Geospatial Artificial Intelligence (GeoAI) offers a scalable solution for automating the generation and updating of volunteered geographic information (VGI) maps—addressing the limitations of manual contributions to crowd-source mapping platfor...

  • Article
  • Open Access
5 Citations
4,074 Views
19 Pages

Towards Detecting Social Events by Mining Geographical Patterns with VGI Data

  • Zhewei Liu,
  • Xiaolin Zhou,
  • Wenzhong Shi and
  • Anshu Zhang

Detecting events using social media data is important for timely emergency response and urban monitoring. Current studies primarily use semantic-based methods, in which “bursts” of certain semantic signals are detected to identify emergin...

  • Article
  • Open Access
10 Citations
4,802 Views
26 Pages

Knowledge and Data-Driven Mapping of Environmental Status Indicators from Remote Sensing and VGI

  • Alessia Goffi,
  • Gloria Bordogna,
  • Daniela Stroppiana,
  • Mirco Boschetti and
  • Pietro Alessandro Brivio

4 February 2020

The paper proposes a transparent approach for mapping the status of environmental phenomena from multisource information based on both soft computing and machine learning. It is transparent, intended as human understandable as far as the employed cri...

  • Article
  • Open Access
5 Citations
4,686 Views
22 Pages

Volunteered geographic information (VGI) encourages citizens to contribute geographic data voluntarily that helps to enhance geospatial databases. VGI’s significant limitations are trustworthiness and reliability concerning data quality due to...

  • Review
  • Open Access
48 Citations
8,062 Views
23 Pages

Volunteered Geographical Information (VGI) and social media can provide information about real-time perceptions, attitudes and behaviours in urban green space (UGS). This paper reviews the use of VGI and social media data in research examining UGS. T...

  • Article
  • Open Access
1 Citations
1,594 Views
17 Pages

1 August 2023

The latest advances in spatial information technology have led to the emergence of Volunteered Geographic Information (VGI) as enrichment to existing spatial data sources. Additionally, Decision Support Systems (DSS) are among the fields that have se...

  • Article
  • Open Access
8 Citations
2,938 Views
25 Pages

One of the most important challenges of volunteered geographic information (VGI) is the quality assessment. Existing methods of VGI quality assessment, either assess the quality by comparing a reference map with the VGI map or deriving the quality fr...

  • Article
  • Open Access
86 Citations
13,701 Views
14 Pages

A Quality Study of the OpenStreetMap Dataset for Tehran

  • Mohammad Forghani and
  • Mahmoud Reza Delavar

There has been enormous progress in geospatial data acquisition in the last decade. Centralized data collection, mainly by land surveying offices and local government agencies, has changed dramatically to voluntary data provision by citizens. Among a...

  • Article
  • Open Access
54 Citations
7,749 Views
25 Pages

Volunteered geographic information (VGI) has great potential to reveal spatial and temporal dynamics of geographic phenomena. However, a variety of potential biases in VGI are recognized, many of which root from volunteer data contribution activities...

  • Article
  • Open Access
14 Citations
6,274 Views
16 Pages

19 September 2017

Volunteered geographic information (VGI) has been heralded as a promising new data source for urban planning and policymaking. However, there are also concerns surrounding uneven levels of participation and spatial coverage, despite the promotion of...

  • Article
  • Open Access
14 Citations
4,743 Views
15 Pages

Volunteer-contributed geographic data (VGI) is an important source of geospatial big data that support research and applications. A major concern on VGI data quality is that the underlying observation processes are inherently biased. Detecting observ...

  • Article
  • Open Access
26 Citations
5,343 Views
31 Pages

Assessment and Visualization of OSM Consistency for European Cities

  • Dimitra Zacharopoulou,
  • Andriani Skopeliti and
  • Byron Nakos

Volunteered Geographic Information (VGI) is a widely used data source in various fields and services, such as environmental monitoring, disaster and crisis management, SDI, and mapping. Quality is a critical factor for the usability of VGI. This stud...

  • Article
  • Open Access
38 Citations
13,163 Views
27 Pages

A Spatial Data Infrastructure Integrating Multisource Heterogeneous Geospatial Data and Time Series: A Study Case in Agriculture

  • Gloria Bordogna,
  • Tomáš Kliment,
  • Luca Frigerio,
  • Pietro Alessandro Brivio,
  • Alberto Crema,
  • Daniela Stroppiana,
  • Mirco Boschetti and
  • Simone Sterlacchini

Currently, the best practice to support land planning calls for the development of Spatial Data Infrastructures (SDI) capable of integrating both geospatial datasets and time series information from multiple sources, e.g., multitemporal satellite dat...

  • Article
  • Open Access
19 Citations
10,850 Views
22 Pages

Guided Classification System for Conceptual Overlapping Classes in OpenStreetMap

  • Ahmed Loai Ali,
  • Nuttha Sirilertworakul,
  • Alexander Zipf and
  • Amin Mobasheri

The increased development of Volunteered Geographic Information (VGI) and its potential role in GIScience studies raises questions about the resulting data quality. Several studies address VGI quality from various perspectives like completeness, posi...

  • Article
  • Open Access
13 Citations
4,365 Views
15 Pages

In recent years, volunteered-geographic-information (VGI) image data have served as a data source for various geographic applications, attracting researchers to assess the quality of these images. However, these applications and quality assessments a...

  • Article
  • Open Access
169 Citations
22,881 Views
26 Pages

11 November 2013

Due to financial or administrative constraints, access to official spatial base data is currently limited to a small subset of all potential users in the field of spatial planning and research. This increases the usefulness of Volunteered Geographic...

  • Communication
  • Open Access
38 Citations
7,744 Views
12 Pages

(1) Background: Due to the advent of Volunteered Geographic Information (VGI), large datasets of user-generated Points of Interest (POI) are now available. As with all VGI, however, there is uncertainty concerning data quality and fitness-for-use. Cu...

  • Article
  • Open Access
11 Citations
6,064 Views
26 Pages

Shared Data Sources in the Geographical Domain—A Classification Schema and Corresponding Visualization Techniques

  • Franz-Benjamin Mocnik,
  • Christina Ludwig,
  • A. Yair Grinberger,
  • Clemens Jacobs,
  • Carolin Klonner and
  • Martin Raifer

People share data in different ways. Many of them contribute on a voluntary basis, while others are unaware of their contribution. They have differing intentions, collaborate in different ways, and they contribute data about differing aspects. Shared...

  • Review
  • Open Access
121 Citations
23,289 Views
20 Pages

An Analysis of Geospatial Technologies for Risk and Natural Disaster Management

  • Luiz A. Manfré,
  • Eliane Hirata,
  • Janaína B. Silva,
  • Eduardo J. Shinohara,
  • Mariana A. Giannotti,
  • Ana Paula C. Larocca and
  • José A. Quintanilha

This paper discusses the use of spatial data for risk and natural disaster management. The importance of remote-sensing (RS), Geographic Information System (GIS) and Global Navigation Satellite System (GNSS) data is stressed by comparing studies of t...

  • Article
  • Open Access
54 Citations
14,484 Views
17 Pages

Monitoring and Assessing Post-Disaster Tourism Recovery Using Geotagged Social Media Data

  • Yingwei Yan,
  • Melanie Eckle,
  • Chiao-Ling Kuo,
  • Benjamin Herfort,
  • Hongchao Fan and
  • Alexander Zipf

Tourism is one of the most economically important industries. It is, however, vulnerable to disaster events. Geotagged social media data, as one of the forms of volunteered geographic information (VGI), has been widely explored to support the prevent...

  • Article
  • Open Access
69 Citations
8,279 Views
25 Pages

Several scientific processes benefit from Citizen Science (CitSci) and VGI (Volunteered Geographical Information) with the help of mobile and geospatial technologies. Studies on landslides can also take advantage of these approaches to a great extent...

  • Article
  • Open Access
19 Citations
7,171 Views
29 Pages

Over the past few decades, geoportals have been considered as the key technological solutions for easy access to Earth observation (EO) products, and the implementation of spatial data infrastructure (SDI). However, less attention has been paid to de...

  • Article
  • Open Access
24 Citations
6,796 Views
18 Pages

OpenStreetMap (OSM) is a free, open-access Volunteered geographic information (VGI) platform that has been widely used over the last decade as a source for Land Use Land Cover (LULC) mapping and visualization. However, it is known that the spatial co...

  • Article
  • Open Access
576 Views
21 Pages

Social Geoparticipation and Spatial Justice in Campus Revitalization: The Warsaw University of Technology Case Study

  • Agnieszka Wendland,
  • Renata Walczak,
  • Krzysztof Koszewski,
  • Krzysztof Ejsmont,
  • Hubert Świech,
  • Urszula Szczepankowska-Bednarek,
  • Piotr Pałka and
  • Robert Olszewski

27 November 2025

Urban revitalization processes are increasingly requiring inclusive and data-driven approaches that address spatial inequalities and support the achievement of the Sustainable Development Goals (SDGs). The article presents a methodology for utilizing...

  • Article
  • Open Access
19 Citations
6,978 Views
17 Pages

Promoting Crowdsourcing for Urban Research: Cycling Safety Citizen Science in Four Cities

  • Colin Ferster,
  • Trisalyn Nelson,
  • Karen Laberee,
  • Ward Vanlaar and
  • Meghan Winters

People generate massive volumes of data on the Internet about cities. Researchers may engage these crowds to fill data gaps and better understand and inform planning decisions. Crowdsourced tools for data collection must be supported by outreach; how...

  • Article
  • Open Access
18 Citations
9,228 Views
19 Pages

This paper presents the results of a study that explored if and how an OpenStreetMap (OSM) data import task can contribute to OSM community growth. Different outreach techniques were used to introduce a building import task to three targeted OSM user...

  • Article
  • Open Access
31 Citations
7,414 Views
31 Pages

22 March 2022

One potential source of geospatial open data for monitoring sustainable development goals (SDG) indicators is OpenStreetMap (OSM). The purpose of this paper is to provide a comprehensive evaluation of the spatial data quality elements of OSM against...

  • Article
  • Open Access
26 Citations
7,974 Views
19 Pages

31 October 2017

Finding relevant geospatial information is increasingly critical because of the growing volume of geospatial data available within the emerging “Big Data” era. Users are expecting that the availability of massive datasets will create more opportuniti...

  • Article
  • Open Access
4 Citations
7,376 Views
15 Pages

The Internet is increasingly a source of data for geographic information systems, as more data becomes linked, available through application programing interfaces (APIs), and more tools become available for handling unstructured web data. While many...

  • Article
  • Open Access
20 Citations
10,541 Views
18 Pages

A Citizen Science Approach for Collecting Toponyms

  • Aji Putra Perdana and
  • Frank O. Ostermann

The emerging trends and technologies of surveying and mapping potentially enable local experts to contribute and share their local geographical knowledge of place names (toponyms). We can see the increasing numbers of toponyms in digital platforms, s...

  • Article
  • Open Access
12 Citations
5,013 Views
12 Pages

Data literacy is an essential skill for today’s digital way of life, to be able to judge the reliability of different data presented, for instance in news and media or in business processes. Geo-Spatial data are a specific kind of data and infl...

  • Article
  • Open Access
468 Views
22 Pages

An Integration Framework of Remote Sensing and Social Media for Dynamic Post-Earthquake Impact Assessment

  • Zhigang Ren,
  • Tengfei Yang,
  • Guoqing Li,
  • Shengwu Hu,
  • Naixia Mou and
  • Zugang Chen

13 December 2025

Effective post-disaster management requires continuous and reliable monitoring of the evolving disaster situation. While remote sensing provides objective measurements of ground deformation, social media data offer dynamic insights into public percep...

  • Article
  • Open Access
9 Citations
5,677 Views
17 Pages

Geographic information has been traditionally produced by mapping agencies and corporations, using highly skilled professionals as well as expensive precision equipment and procedures, in a very costly approach. The production of land use and land co...

  • Article
  • Open Access
18 Citations
5,007 Views
23 Pages

Characterizing Consecutive Flooding Events after the 2017 Mt. Salto Wildfires (Southern Italy): Hazard and Emergency Management Implications

  • Giuseppe Esposito,
  • Antonio Parodi,
  • Martina Lagasio,
  • Rocco Masi,
  • Giovanni Nanni,
  • Filiberto Russo,
  • Stefano Alfano and
  • Gaetano Giannatiempo

17 December 2019

Every summer, wildfires affect thousands of steep watersheds in Italy, causing the partial or complete destruction of vegetation, and changes in soil hydraulic properties. Such effects alter the hydrologic response of watersheds, increasing post-fire...

  • Article
  • Open Access
20 Citations
6,156 Views
31 Pages

19 October 2020

This paper tests an automated methodology for generating training data from OpenStreetMap (OSM) to classify Sentinel-2 imagery into Land Use/Land Cover (LULC) classes. Different sets of training data were generated and used as inputs for the image cl...

  • Article
  • Open Access
41 Citations
11,198 Views
27 Pages

Point-of-Interest (POI) Data Validation Methods: An Urban Case Study

  • Lih Wei Yeow,
  • Raymond Low,
  • Yu Xiang Tan and
  • Lynette Cheah

Point-of-interest (POI) data from map sources are increasingly used in a wide range of applications, including real estate, land use, and transport planning. However, uncertainties in data quality arise from the fact that some of this data are crowds...

  • Article
  • Open Access
14 Citations
8,822 Views
22 Pages

Hybrid 3D Rendering of Large Map Data for Crisis Management

  • David Tully,
  • Abdennour El Rhalibi,
  • Christopher Carter and
  • Sud Sudirman

In this paper we investigate the use of games technologies for the research and the development of 3D representations of real environments captured from GIS information and open source map data. Challenges involved in this area concern the large data...

  • Article
  • Open Access
25 Citations
6,892 Views
24 Pages

24 August 2021

Progress towards the United Nations’ Sustainable Development Goals (SDGs) is monitored using a set of targets and indicators. Gaps in official datasets have led to calls for the inclusion of data generated through citizen science (CS) and allied appr...

  • Article
  • Open Access
20 Citations
7,148 Views
15 Pages

Effective transport infrastructure is an essential component of economic integration, accessibility to vital social services and a means of mitigation in times of emergency. Rural areas in Africa are largely characterized by poor transport infrastruc...

  • Article
  • Open Access
7 Citations
5,624 Views
16 Pages

Crowdsourced Geospatial Infrastructure for Coastal Management and Planning for Emerging Post COVID-19 Tourism Demand

  • Efthimios Bakogiannis,
  • Chryssy Potsiou,
  • Konstantinos Apostolopoulos and
  • Charalampos Kyriakidis

12 June 2021

In recent years, the use of crowdsourcing has positively transformed the way geographic information is collected, stored and analyzed. Many countries have promoted and funded research into the potential of using crowdsourcing in various fields of gov...

  • Article
  • Open Access
17 Citations
12,682 Views
31 Pages

Semantic Interoperability of Sensor Data with Volunteered Geographic Information: A Unified Model

  • Mohamed Bakillah,
  • Steve H.L. Liang,
  • Alexander Zipf and
  • Jamal Jokar Arsanjani

The increasing availability of sensor devices has resulted in important volumes of sensor data, which has raised the issue of making these data fully discoverable and interpretable by applications and end-users. The idea of OGC Sensor Web Enablement...

  • Article
  • Open Access
26 Citations
9,490 Views
34 Pages

A Volunteered Geographic Information Framework to Enable Bottom-Up Disaster Management Platforms

  • Mohammad Ebrahim Poorazizi,
  • Andrew J.S. Hunter and
  • Stefan Steiniger

13 August 2015

Recent disasters, such as the 2010 Haiti earthquake, have drawn attention to the potential role of citizens as active information producers. By using location-aware devices such as smartphones to collect geographic information in the form of geo-tagg...

  • Article
  • Open Access
27 Citations
7,008 Views
19 Pages

A Spatio-Temporal VGI Model Considering Trust-Related Information

  • Yijiang Zhao,
  • Xiaoguang Zhou,
  • Guangqiang Li and
  • Hanfa Xing

Over the past several years, volunteered geographic information (VGI) has expanded rapidly. VGI collection has been proven to serve as a highly successful means of acquiring timely and detailed global spatial data. However, VGI includes several speci...

  • Article
  • Open Access
1 Citations
4,047 Views
17 Pages

A Proximity-Based Semantic Enrichment Approach of Volunteered Geographic Information: A Study Case of Waste of Water

  • Liliane Soares da Costa,
  • Italo Lopes Oliveira,
  • Alexandra Moreira and
  • Jugurta Lisboa-Filho

Volunteered geographic information (VGI) refers to geospatial data that is collected and/or shared voluntarily over the Internet. Its use, however, presents many limitations, such as data quality, difficulty in use and recovery. One alternative to im...

  • Article
  • Open Access
4 Citations
3,199 Views
16 Pages

Social media and other forms of volunteered geographic information (VGI) are used frequently as a source of fine-grained big data for research. While employing geographically referenced social media data for a wide array of purposes has become common...

  • Article
  • Open Access
118 Citations
16,134 Views
24 Pages

Assessing Completeness and Spatial Error of Features in Volunteered Geographic Information

  • Steven P. Jackson,
  • William Mullen,
  • Peggy Agouris,
  • Andrew Crooks,
  • Arie Croitoru and
  • Anthony Stefanidis

The assessment of the quality and accuracy of Volunteered Geographic Information (VGI) contributions, and by extension the ultimate utility of VGI data has fostered much debate within the geographic community. The limited research to date has been fo...

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