Category: Publications

Successful PhD Defence by René Westerholt on The Analysis of Spatially Superimposed and Heterogeneous Random Variables Using the Example of Geosocial Media Data

This week our GIScience Heidelberg team member Rene Westerholt most successfully defended his PhD! Congratulations! Very well deserved! The thesis is located at the interface between spatial analysis methodology and the characteristics of spatially superimposed random variables. Three types of contributions are presented: (i) the interactions of spatial analysis techniques with spatially superimposed random variables…

2018-06-19
Today VGI-ALIVE Workshop at AGILE 2018 Lund, Sweden

If you are in Lund, Sweden today you might consider joining our VGI-ALIVE Workshop at AGILE Conference 2018. The latest programme can be found here. It includes keynotes by Andrea Ballatore and Stefano Dea Sabata and a range of interesting contributions, including Enhancing Crowdsourced Classification on Human Settlements Utilizing Logistic Regression Aggregation and Intrinsic Context…

2018-06-12
Use of multi-objective optimization to assess trade-offs of urban expansion in Switzerland

One of the many unwanted side effects of urban growth is the loss of fertile soils since most citizens and villages have been founded in close proximity to fertile soils. Preserving high-quality soils however can conflict with the objective of developing compact urban patterns. A team from researches at the GIScience group, the ETH Zürich…

2018-06-11
Full publication of multitemporal multisensor dataset from an Arctic permafrost research site

The multisensor datasets acquired in the three field campaigns of the PermaSAR project have recently been published on the Open Access data library PANGAEA: Anders, K., Antonova, S., Beck, I., Boike, J., Höfle, B., Langer, M., Marsh, P., Marx, S., (2018): Multisensor ground-based measurements of the permafrost thaw subsidence in the Trail Valley Creek, NWT,…

2018-06-05
A discussion of crowdsourced geographic information initiatives and big Earth observation data architectures for land-use and land-cover monitoring

The effective monitoring of land-use and land-cover changes (LULCC) is a basic requirement for understanding socio-enviromental processes of local to global scales. Remote sensing data and methods have long been established as the most effective approach for monitoring LULCC. The potential for further increasing the effectiveness of this approach is proportional to the astonishingly large…

2018-06-03
HeiGIT/GIScience @ISCRAM 2018 Rochester- Exchange of latest crisis management practice and innovative ideas near a natural wonder of the world

Rochester NY, a small city located at Lake Ontario, became a gathering place for the international ISCRAM community last week. Researchers and practitioners from over 20 countries presented their latest work, ideas and needs related to crisis management at the 15th ISCRAM conference. Crisis and humanitarian management being one of the main focuses of the…

2018-05-30
Ohsome for Street Network Analysis and Disaster Activation Monitoring

Disaster mapping activations that are supported by many volunteers with various levels of experience raise questions related to the quality of the provided Volunteered Geographic Information. Learning about the data quality that can be expected in a disaster activation helps to evaluate the quality and fitness for purpose of the OSM data. At the ISCRAM…

2018-05-29
Identifying the Effects of Mobility Domains on Volunteered Geographical Information: Towards an Analytical Approach

The production of Volunteered Geographic Information (VGI) is a type of human behavior which emerges via direct and indirect interactions with the physical environments described by these data. The nature of these interactions and the extent to which they rely on physical presence in the mapped area may affect the quality of the resulting digital…

2018-05-16
Associating OpenStreetMap tags to CORINE land-cover classes using text and semantic similarity measures

With the aim of rapidly estimating the updated state of the CORINE land-cover map at the frequency with which the OpenStreetMap (OSM) dataset is edited and extended, we propose an approach for automatically associating widely used OSM tags to Level 1 and Level 2 CORINE land-cover classes. This association is probabilistic and is undertaken based…

2018-05-12
Coupling maximum entropy modeling with geotagged social media data to determine the geographic distribution of tourists

Modeling the geographic distribution of tourists at a tourist destination is crucial when it comes to enhancing the destination’s resilience to disasters and crises, as it enables the efficient allocation of limited resources to precise geographic locations. Seldom have existing studies explored the geographic distribution of tourists through understanding the mechanisms behind it. A recently…

2018-04-25
A taxonomy of quality assessment methods for volunteered and crowdsourced geographic information

The growing use of crowdsourced geographic information (CGI) has prompted the employment of several methods for assessing information quality, which are aimed at addressing concerns on the lack of quality of the information provided by non‐experts. In a recently published work, we propose a taxonomy of methods for assessing the quality of CGI when no…

2018-04-23
Deadline Extended to April 23: VGI-ALIVE Workshop @AGILE 2018

The Deadline for submitting short papers to the VGI-ALIVE Workshop at AGILE 2018 has been extended to 23 April 2018! This is your chance to submit another contribution to this exiting workshop in Lund, Sweden. Submission format is a workshop short paper (2000 to 3000-word manuscript). Authors of accepted workshop papers will be invited to…

2018-04-11