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On Fine-Grained Geolocalisation of Tweets

Jorge David Gonzalez Paule, Yashar Moshfeghi, Joemon M. Jose, Piyushimita (Vonu) Thakuriah
2017 Proceedings of the ACM SIGIR International Conference on Theory of Information Retrieval - ICTIR '17  
Recently, the geolocalisation of tweets has become an important feature for a wide range of tasks in Information Retrieval and other domains, such as real-time event detection, topic detection or disaster  ...  In this paper, we propose a location inference method that utilises a ranking approach combined with a majority voting of tweets weighted based on the credibility of its source (Twi er user).  ...  FINE-GRAINED GEOLOCALISATION Our proposed approach consists of three steps.  ... 
doi:10.1145/3121050.3121104 dblp:conf/ictir/PauleMJT17 fatcat:vpmwhmsvqrbjja6itmhyq62xmq

When a Tweet Finds its Place: Fine-Grained Tweet Geolocalisation

Pavlos Paraskevopoulos, Giovanni Pellegrini, Themis Palpanas
2016 European Conference on Principles of Data Mining and Knowledge Discovery  
In addition, we study the specific problem of geolocalising tweets deriving from targeted locations of interest (i.e., cities and neighborhoods in these cities), and present the visualizations of the prototype  ...  The recent rise in the use of social networks has resulted in an abundance of information on different aspects of everyday social activities that is available online.  ...  Proposed Approach In this section, we describe our solution to the problem of fine-grained geolocalisation of non-geotagged tweets.  ... 
dblp:conf/pkdd/Paraskevopoulos16 fatcat:6p72frsaiveyjod5tfzlusanrm

On fine-grained geolocalisation of tweets and real-time traffic incident detection

Jorge David Gonzalez Paule, Yeran Sun, Yashar Moshfeghi
2018 Information Processing & Management  
2018) On fine-grained geolocalisation of tweets and real-time traffic incident detection. Information Processing and Management. ISSN 0306-4573 , http://dx.  ...  Our analysis shows that our fine-grained geolocalisation method can overcome the limitations of geotagged tweets and precisely map incident-related tweets at the real location of the incident.  ...  Finally, we ran our fine-grained geolocalisation method on the 597 incidentrelated tweets obtained in Section 6.1.  ... 
doi:10.1016/j.ipm.2018.03.011 fatcat:7t4twzfmiza2rowqjwigsoegui

Learning to Geolocalise Tweets at a Fine-Grained Level

Jorge David Gonzalez Paule, Yashar Moshfeghi, Craig Macdonald, Iadh Ounis
2018 Proceedings of the 27th ACM International Conference on Information and Knowledge Management - CIKM '18  
the accuracy of tweet geolocalisation at a fine-grained level.  ...  In this work, we adopt a learning to rank approach towards improving the effectiveness of the ranking and increasing the accuracy of fine-grained geolocalisation.  ...  We propose a set of features to model fine-grained tweet geolocalisation.  ... 
doi:10.1145/3269206.3269291 dblp:conf/cikm/PauleMMO18 fatcat:p46lh4e7kng2jjgynckruzon3q

Fine-grained analysis of language varieties and demographics

Francisco Rangel, Paolo Rosso, Wajdi Zaghouani, Anis Charfi
2020 Natural Language Engineering  
In this paper, we focus on a fine-grained analysis of language varieties while considering also the authors' demographics.  ...  Furthermore, we applied our proposed method to a more fine-grained annotated corpus of Arabic varieties covering 22 Arab countries and obtained an overall accuracy of 88.89%.  ...  The statements made herein are solely the responsibility of the authors. References  ... 
doi:10.1017/s1351324920000108 fatcat:mdk2yxafbjffnhm5te3b7lscxe

Measuring the Salad Bowl: Superdiversity on Twitter [article]

Laura Pollacci, Alina Sirbu, Fosca Giannotti, Dino Pedreschi
2022 arXiv   pre-print
Our method produces very good results across languages, being tested here both on English and Italian tweets.  ...  We argue that our index has predictive power in regions where exact data on immigration is not available, paving the way for a nowcasting model of immigration rates.  ...  In fact, country or region/county tags do not allow us to reach a fine-grained geographical level.  ... 
arXiv:2204.10646v1 fatcat:65b3bwutpzdmrbxzi6btbwcpt4

Towards Real-Time, Country-Level Location Classification of Worldwide Tweets

Arkaitz Zubiaga, Alex Voss, Rob Procter, Maria Liakata, Bo Wang, Adam Tsakalidis
2017 IEEE Transactions on Knowledge and Data Engineering  
For instance, during breaking news, one may want to identify reports from eyewitnesses on the ground and therefore fine-grained geolocation would be crucial to identify tweets in the area.  ...  While this provides fine-grained classification of tweets, it also means that a limited number of cities can be considered, ignoring other cities and towns. Only Han et al. [19] and Dredze et al.  ... 
doi:10.1109/tkde.2017.2698463 fatcat:55uvec5iufhgdfvjcf6jk4f7rm

Towards Real-Time, Country-Level Location Classification of Worldwide Tweets [article]

Arkaitz Zubiaga, Alex Voss, Rob Procter, Maria Liakata, Bo Wang, Adam Tsakalidis
2017 arXiv   pre-print
We also experiment on the applicability of a model trained on historical tweets to classify new tweets, finding that the choice of a particular combination of features whose utility does not fade over  ...  With classification experiments on all 217 countries in our datasets, as well as on the top 25 countries, we offer some insights into the best use of tweet-inherent features for an accurate country-level  ...  For instance, during breaking news, one may want to identify reports from eyewitnesses on the ground and therefore fine-grained geolocation would be crucial to identify tweets in the area.  ... 
arXiv:1604.07236v3 fatcat:76st2j3xzvekbncnsphbnlby64

RISIS policy makers' sessions: RISIS-KNOWMAK – A tool for exploring knowledge production in Europe

Lepori Benedetto, Scherngell Thomas
2019 Zenodo  
On 19th December 2019, the Club of associated research organisations (Clora) of Brussels hosted the second policymakers' Session of RISIS project.  ...  Finally, the session focused on future development of RISIS-KNOWMAK and open discussion.  ...  RISIS work on space and geolocalisation Topics • A fine-grained ontological structure (13 KET/SGC and 135 subclasses) • -Building on RISIS Public Research Organizations Register (  ... 
doi:10.5281/zenodo.3591854 fatcat:lqud5n2abbeyjdxy665lrwvmne

E2mC: Improving Emergency Management Service Practice through Social Media and Crowdsourcing Analysis in Near Real Time

Clemens Havas, Bernd Resch, Chiara Francalanci, Barbara Pernici, Gabriele Scalia, Jose Fernandez-Marquez, Tim Van Achte, Gunter Zeug, Maria Mondardini, Domenico Grandoni, Birgit Kirsch, Milan Kalas (+2 others)
2017 Sensors  
In the first hours of a disaster, up-to-date information about the area of interest is crucial for effective disaster management.  ...  In the next sections the main components of the architecture are described to give an insight of the methods integrated into the components.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/s17122766 pmid:29186080 pmcid:PMC5751655 fatcat:2trtqzcvxjcnrafhzamvi7k4fa

Measuring the effect of node aggregation on community detection

Yérali Gandica, Adeline Decuyper, Christophe Cloquet, Isabelle Thomas, Jean-Charles Delvenne
2020 EPJ Data Science  
A common example is the geographic position: one may uncover communities in a network of places, or of individuals identified with their typical geographical position, and then aggregate these places into  ...  Our main message is that any node-partitioning analysis performed on aggregated networks should be interpreted with caution, as the outcome may be strongly influenced by the level of the aggregation.  ...  Both aggregated graphs G 1 and G 2 may have a significant community structure, thus the community detection on both aggregations will provide interesting, distinct insights on the underlying fine-grained  ... 
doi:10.1140/epjds/s13688-020-00223-0 fatcat:5tcgwljkujdctaaem4woc3geda

Placing Photos with a Multimodal Probability Density Function

Jonathon Hare, Jamie Davies, Sina Samangooei, Paul Lewis
2014 Proceedings of International Conference on Multimedia Retrieval - ICMR '14  
This paper presents a general model for effectively using both textual metadata and visual features of photos to automatically place them on a world map with state-of-the-art performance.  ...  on photo-sharing websites such as Flickr.  ...  In our technique, because of the way we are using features we are able to use a much smaller kernel bandwidth for very fine-grained location estimation.  ... 
doi:10.1145/2578726.2578768 dblp:conf/mir/HareDSL14 fatcat:rttnqkz6yvhslm42xclcmozvdq

Changes in Twitter geolocations: Insights and suggestions for future usage

Anna Kruspe, Matthias Häberle, Eike J. Hoffmann, Samyo Rode-Hasinger, Karam Abdulahhad, Xiao Xiang Zhu
2021 Proceedings of the Seventh Workshop on Noisy User-generated Text (W-NUT 2021)   unpublished
On fine-grained geolocalisation Anna Kruspe, Jens Kersten, and Friederike Klan. 2021. of tweets and real-time traffic incident detection. Inf.  ...  Moreover, this at a very fine-grained level.  ... 
doi:10.18653/v1/2021.wnut-1.24 fatcat:4luyqusujvc6jjldcwh5y7oxye

AND ITS PUBLICS EditEurs / Editors / EditorEs ConsEils sCiEntifiquEs / sCiEntifiC board / ConsElhos CiEntífiCos

L Journalisme, O Jornalismo, François Demers, Jean De Bonville
In addition, the preferences of readers vary depending on whether one measures this by the number of "clicks," "likes," "tweets," or comments on the articles.  ...  These metrics typically include the number of visits, "likes" on Facebook, "tweets" on Twitter, comments, and number of returning users.  ...  This article analyses the photographs of female and male Members of Parliament (MPs) taking part in the Portuguese parliamentary debates of 1984, 1997 and 1998 on the voluntary interruption of pregnancy  ... 

Mapping Species distribution in space and time using social network site geotagged photos

To understand these changes, we need fine-scale monitoring of insects, flowering plants and habitats worldwide. We cannot fulfil this need with manual labour.  ...  Climate change is affecting the environment and threatening the insect pollinators we need for one third of human food production.  ...  While climate, and changes affecting it, are global phenomena, studying the effects on pollination sometimes requires fine-grained spatial data.  ... 
doi:10.26180/5ea3cd6d7c45c fatcat:5yqkucvvlbd45kxunlcnr5vzua
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