Articles

A combined change detection procedure to study desertification using opensource tools

The paper presents a combination of two unsupervised techniques for change detection studies in arid and semi-arid areas. Among Remote Sensing change detection techniques, unsupervised approaches have the adva...

Authors: Anna Zanchetta and Gabriele Bitelli

Generalized 3D fragmentation index derived from lidar point clouds

Point clouds with increased point densities create new opportunities for analyzing landscape structure in 3D space. Taking advantage of these dense point clouds we have extended a 2D forest fragmentation index...

Authors: Vaclav Petras, Douglas J. Newcomb and Helena Mitasova

GeoJModelBuilder: an open source geoprocessing workflow tool

Scientific workflows have been commonly used in geospatial data analysis and Cyberinfrastructure. They allow distributed geoprocessing algorithms, models, data, and sensors to be chained together to support ge...

Authors: Mingda Zhang, Xiaoqian Bu and Peng Yue

OpenDragon: software and a programmer’s toolkit for teaching remote sensing and geoinformatics

Continued progress in geoinformatics research and applications depends on educating new generations of theorists and practitioners. Effective education and training in turn depend on the availability of approp...

Authors: Kurt Rudahl and Sally E. Goldin

Fusion of high-resolution DEMs for water flow modeling

New technologies for terrain reconstruction have increased the availability of topographic data at a broad range of resolutions and spatial extents. The existing digital elevation models (DEMs) can now be upda...

Authors: Anna Petrasova, Helena Mitasova, Vaclav Petras and Justyna Jeziorska

Spatial analysis of users-generated ratings of yelp venues

With popular location-based services on smart phones, users are willing to leave comments on the business venues (e.g., restaurants, shops, bars, etc.) that they visited. Reviews of users on Yelp venues somewh...

Authors: Yeran Sun and Jorge David Gonzalez Paule

An open source virtual globe rendering engine for 3D applications: NASA World Wind

NASA World Wind is an open source application-programming interface for developing geographic information systems based on a virtual globe rendering engine representing a planet. NASA World Wind provides the i...

Authors: Francesco Pirotti, Maria Antonia Brovelli, Gabriele Prestifilippo, Giorgio Zamboni, Candan Eylul Kilsedar, Marco Piragnolo and Patrick Hogan

Geodata interoperability and harmonization in transport: a case study of open transport net

In Europe, a lot of data portals are emerging on the local, national or interregional levels. These portals have a common objective to share data and information to its citizens and businesses, and to make inf...

Authors: Carina Veeckman, Karel Jedlička, Dieter De Paepe, Dmitrii Kozhukh, Štěpán Kafka, Pieter Colpaert and Otakar Čerba

Virtual network analysis of Wuhan 1+8 City Circle based on Sina microblog user relations

In this study, we clustered a large number of microblog users into city nodes based on the interpersonal relations and geographic location attributes of these users and clustered the user relations within each...

Authors: Shen Ying, Nuocheng Zhang, Kai Wang, Zhigang Zhao, Zhou Shen and Deguo Su

Improving emergency response logistics through advanced GIS

Emergency call centres, commonly known as “112” or “911”, are a crucial part of modern infrastructure. The location of the emergency, any related data, and good GIS support are required for their efficient ope...

Authors: Marjan Šterk and Marko Praprotnik

The Hitchhiker’s guide to the pick-up locations

Hitchhiking is a well-known form of transportation, which has been extensively studied from a sociological perspective. While this tourism approach has been popular in some countries for decades, the question ...

Authors: Oleksii Vedernikov, Lars Kulik and Kotagiri Ramamohanarao

Experiencing the built environment: strategies to measure objective and subjective qualities of places

This article offers an alternative look at the experiential character of the built environment by combining objective analysis and subjective perception. The aim is to measure and elaborate on quantitative des...

Authors: Allen Sayegh, Stefano Andreani, Chrisoula Kapelonis, Natasha Polozenko and Stefan Stanojevic

Determining the suitability trends for settlement based on multi criteria in Kirkuk, Iraq

Swift population growth and unplanned settlement led to the phenomenon of informal urban in Iraqi cities because of warfare, political instability and economic blockage for more than three decades. Economic st...

Authors: Najat Qader Omar and Aram Mohammed Raheem

Tools to operate and manage early warning systems for natural hazards monitoring in El Salvador

This article explores the concerns from the institutions to include information from the field into geographical information systems (GIS). This task is becoming an essential action to strengthen and speed up ...

Authors: Jacqueline Yamileth Rivera

How is an informal transport infrastructure system formed? Towards a spatially explicit conceptual model

The informal transport infrastructure is an inseparable and critical element of the transportation system in that it provides pedestrian accessibility in planned or unplanned environments. Despite this importa...

Authors: Hossein Vahidi and Wanglin Yan

Empowering citizen science through free and open source GIS

This article presents an overview of the GIS components of the COBWEB software framework, designed in order to support a collaborative citizen science environment. It describes the overall architecture of the ...

Authors: Maria Arias de Reyna and Joana Simoes

Geodata for everyone - model-driven development and an example of INSPIRE WFS service

On the first January 2013, everyone in Denmark received a wonderful new year present from the Danish government: “Free and Open Geo-data”. This means that everyone is free to use, reuse and redistribute the ge...

Authors: Meixia Feng

Development and testing of geo-processing models for the automatic generation of remediation plan and navigation data to use in industrial disaster remediation

This paper introduces research done on the automatic preparation of remediation plans and navigation data for the precise guidance of heavy machinery in clean-up work after an industrial disaster. The input te...

Authors: G. Lucas, Cs. Lénárt and J. Solymosi

Supporting the measurement of the United Nations’ sustainable development goal 11 through the use of national urban information systems and open geospatial technologies: a case study of south Korea

Geospatial information has drawn substantial attention as a means for building a common measurement and monitoring framework that can be employed across different countries all over the world for the sustainab...

Authors: Junyoung Choi, Myunghwa Hwang, Gayeon Kim, Janghwan Seong and Jaeseong Ahn

Model driven architecture engineered land administration in conformance with international standards – illustrated with the Hellenic Cadastre

Over the last years, the new role of Land Administration in realising the Information Infrastructure and the need to address spatial and non- spatial land related data exchange between countries emerged and si...

Authors: Styliani Psomadaki, Efi Dimopoulou and Peter van Oosterom

Spatio-temporal quality control: implications and applications for data consumers and aggregators

Quality control for real-time spatio-temporal data is often presented from the perspective of the original owner and provider of the data, and focuses on general techniques for outlier detection or uses domain...

Authors: Douglas E. Galarus and Rafal A. Angryk

Open geospatial data, software and standards

Authors: Mohamed Bakillah and Steve Liang