A new study has been published in the international open access journal Geo-spatial Information Science (GSIS, Taylor & Francis), that explores the land use/land cover (LULC) separability by the machine-generated and user-generated Flickr photo tags (i.e. the auto-tags and the user-tags, respectively), based on an authoritative LULC dataset for San Diego County in the United [...]
Tag Archive 'Social Media Data'
An approach for understanding human activity patterns with the motivations behind
Posted in Publications on Dec 11th, 2018
A mechanistic understanding of human activity patterns lays a foundation for many applications. The majority of the current research aims to outline human activity patterns mainly from spatiotemporal perspectives (i.e., modeling human mobility patterns), lacking of understanding of the motivations behind behaviors. The aim of a recently published study is to model and understand human [...]
Now online: Analysing interaction between urban human activities and daily traffic conditions from Twitter
Posted in Publications on Dec 5th, 2018
Understanding how citizens interact with transportation system is a key to solving a variety of urban issues in general and traffic congestion in particular. Recently, scholars have put efforts on the pertinent work ranging from developing traffic predictors to understanding human mobility and activity patterns. Multiple types of data have been used, of which crowdsourced [...]
Call for Participation: PLATIAL’18 Heidelberg - WORKSHOP ON PLATIAL ANALYSIS - 20/21.September 2018
Posted in Events on Sep 10th, 2018
Dear colleagues,
Time is flying and the PLATIAL’18 workshop is getting closer and closer! Next week we are looking forward to an interesting and varied programme of talks in Heidelberg. They will discuss place-related topics ranging from philosophical questions to [...]
GIScience Heidelberg @ GIScience Melbourne
Posted in Publications, Research on Aug 28th, 2018
Two papers from GIScience Heidelberg have been contributed to and accepted for the 10th International GIScience Conference 2018 in Melbourne, Australia. They will be presented on Wednesday and Thursday respectively. Looking forward to a fruitful discussion!
Westerholt, R., Gröbe, M., Zipf, A. and Burghardt, D. (2018): Towards the statistical analysis and visualization of places. 10th International [...]
Successful PhD Defence by René Westerholt on The Analysis of Spatially Superimposed and Heterogeneous Random Variables Using the Example of Geosocial Media Data
Posted in Crowd Analyser, Events, Publications on Jun 19th, 2018
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
are investigated;
(ii) novel [...]
Presentation on VGI and society: inequalities, exclusions and power asymmetries of user generated geoinformation
Posted in Events on May 23rd, 2018
This morning Georg Glasze and Thomas Bittner from Erlangen University gave a very interesting keynote talk on “VGI and society: inequalities, exclusions and power asymmetries of user generated geoinformation”. It was well received and lead to a lively discussion among the participants of the DFG SPP VGIscience Collaborative Research Week that is taking place this week [...]
Graph-based matching of points-of-interest from collaborative geo-datasets
Posted in Publications, Research, VGI Group on Mar 20th, 2018
Several geospatial applications require comprehensive semantic information from points-of-interest (POIs). However, this information is frequently dispersed across different collaborative mapping platforms. Surprisingly, there is still a research gap on the conflation of POIs from this type of geo-dataset. In a recent paper by Novack et al. (2018), we focus on the matching aspect of POI [...]
DFG Summer School “VGI”
Posted in Crowd Analyser, Events, OSM, VGI Group on Sep 20th, 2017
Last week, our colleagues Franz-Benjamin Mocnik and René Westerholt participated in a summer school of the DFG priority programme on “VGI”. GIScience Heidelberg is involved in that programme by two projects, one of which is dealing with data quality issues and another one that investigates the assessment of spatial assotiations in social media data. The [...]
Workshop on Spatial Urban Analytics
Posted in Crowd Analyser, Events, VGI Group on Sep 9th, 2017
GIScience Heidelberg recently contributed to the Annual International Conference, which was held in the premises of the Royal Geographical Society and at the Imperial College in London. Together with João Porto de Albuquerque from the University of Warwick, our member René Westerholt convened two workshop sessions about “spatial urban analytics” on Friday 01 September (link [...]