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GIScience Blog

Tag: Twitter

  • Most Cited Article in Transactions in GIS is on systematic literature review on spatiotemporal analyses of Twitter data

    The following article is the Top Most Cited Article of the last two years in the international journal “Transactions in GIS”. (Wiley) An Advanced Systematic Literature Review on Spatiotemporal Analyses of Twitter Data Steiger, E.; Porto de Albuquerque, J.; Zipf, A. (2015): An advanced systematic literature review on spatiotemporal analyses of Twitter data. Transactions in…

  • GIScience Colloquium talk on Event Detection from Geo-tagged Twitter Data by Diao Lin

    we cordially invite everybody interested to our next open GIScience colloquium talk State of the Art of Event Detection from Geo-tagged Twitter Data Diao Lin Chair of Cartography, Technical University of Munich Time and date: Mon, November 27, 2:15 pm Venue: INF 348, Room 015, Department of Geography, Heidelberg University The speaker tries to give…

  • 20 Anniversary Special Issue on VGI Analytics published in GSIS

    The Special Issue: Volunteered Geographic Information (VGI) – Analytics ( Vol 20, Issue 3) has been published by Taylor & Francis in the Open Access Journal Geo-Spatial Information Science (GSIS) – celebrating the journal`s 20th anniversary. Guest Editors: Peter Mooney, Alexander Zipf, Jamal Jokar Arsanjani, and Hartwig H. Hochmair http://www.tandfonline.com/toc/tgsi20/20/3?nav=tocList GSIS is now indexed in…

  • Mining and correlating traffic events from human sensor observations with official transport data using self-organizing-maps

    Cities are complex systems, where related Human activities are increasingly difficult to explore within. In order to understand urban processes and to gain deeper knowledge about cities, the potential of location-based social networks like Twitter could be used a promising example to explore latent relationships of underlying mobility patterns. In a recently published paper (Steiger…

  • Talk at University of Warwick

    Next Wednesday, René Westerholt will talk about the spatial analysis of Twitter data. The talk is part of the “WISC Seminar Series,” which is hosted by the Warwick Institute for the Science of Cities at University of Warwick, Coventry, UK. The talk starts by highlighting the types of spatial analyses that have been conducted so…

  • Social Media Data: Topological Outliers and Their Influence on Spatial Analysis

    Social media data is one of the recent and prominent sources of georefrenced social information. It allows in-situ insights into the everyday lifes of ordinary people. For all that, social media data also confronts us with considerable analytical challenges. One of these challenges is the mingling of different user habits, functions of geographic space and,…

  • European Handbook of Crowdsourced Geographic Information

    Recently, a new open access handbook edited by Capineri, et.al and supported by the European Commission – COST Action IC1203 (ENERGIC) has been published. This book focuses on the study of the remarkable new source of geographic information that has become available in the form of user-generated content accessible over the Internet through mobile and…

  • Two new DFG projects on VGI, OSM Quality and Social Media Analysis

    recently we were happy to receive the notification that two new research projects will be funded by the Deutsche Forschungsgemeinschaft (DFG) the German main funding agency for fundamental research. Both projects belong to the DFG Priority Programme “Volunteered Geographic Information: Interpretation, Visualisation and Social Computing“ (SPP 1894). The two projects are: A:) IntrisicOSMquality: A framework…

  • A review of volunteered geographic information quality assessment methods

    While Volunteered Geographic Information (VGI) is gaining more and more popularity and VGI datasets are being used in various projects, there are always concerns about the quality of them. During the past years several studies have been performed regarding VGI quality assessment by employing different methods/approaches. However, if one needs to evaluate the quality of…

  • Human Dynamics in the Mobile and Big Data Era

    The Special Issue: Human Dynamics in the Mobile and Big Data Era of the International Journal of Geographical Information Science (IJGIS), Volume 30, Issue 9 is now available online on Taylor & Francis Online. This issue includes our article: Exploration of spatiotemporal and semantic clusters of Twitter data using unsupervised neural networks Enrico Steiger, Bernd…

  • “Do you speak Math”? 61 presentations this semester

    The topic of the “Akademische Mittagspause” (a kind of open brown bag series for the public) at Heidelberg University is this semester is “Do you speak Math?“. In total more then 60 different 15min presentations (+ 15 in discussion) are given in the “Peterskirche”, Plöck 70, 69117 Heidelberg on a daily basis Monday to Friday,…

  • 2nd Call for Papers: Link-VGI Workshop @ AGILE Helsinki in June; Deadline April 25th.

    LINKing and analyzing Volunteered Geographic Information (VGI) across different platforms Pre Conference Workshop at 19th AGILE International Conference on Geographic Information Science 2016. Helsinki, June 14th 2016 Deadline for Call for Short Paper (AGILE short paper format): April 25th 2016 The number of Volunteered Geographic Information (VGI) and social media platforms is continuously growing, providing…