Claudia Wagner

JProf. Dr. Claudia Wagner

Department Computational Social Science
Acting head of departmen

Unter Sachsenhausen 6-8

50667
Köln
Phone:+49 (221) 47694-224
Fax:+49 (221) 47694-8224

Vita

Claudia Wagner is postdoctoral researcher at GESIS - the Leibniz Institute for the Social Sciences (Germany) since October 2013. From 2007-2013 she worked as a research assistant at JOANNEUM RESEARCH in Graz (Austria) and conducted several international research internships, amongst others at the Social Computation Group at HP labs (CA, US), The Augmented Social Cognition Group at Xerox PARC (CA, US) and the Knowledge Media Institute at the Open University (UK). She received her master degree in Computer Science from Graz University of Technology in 2009 and was awarded with a DOC-fFORTE fellowship from the Austrian Academy of Science for her PhD research on the structure, semantics and usage of social streams in 2011. Claudia is frequently serving in program committees for international conferences and journals about social computation, semantic technologies and user behavior analytics.

Monograph

Wagner, Claudia. 2013. Emergent structure, semantics and usage of social streams. Graz: Techn. Univ. Graz. http://claudiawagner.info/publications/thesis_wagner.pdf.

Journal article

Jadidi, Mohsen, Fariba Karimi, Haiko Lietz, and Claudia Wagner. 2017. "Gender disparities in science? Dropout, productivity, collaborations and success of male and female computer scientists." Advances in Complex Systems 20 1-23. doi: http://dx.doi.org/10.1142/S0219525917500114.

Wagner, Claudia, Eduardo Graells-Garrido, David Garcia, and Filippo Menczer. 2016. "Women through the glass ceiling: gender asymmetries in Wikipedia." EPJ Data Science 5 (5): 1-24. doi: http://dx.doi.org/10.1140/epjds/s13688-016-0066-4. http://epjdatascience.springeropen.com/articles/10.1140/epjds/s13688-016-0066-4.

Strohmaier, Markus, and Claudia Wagner. 2014. "Computational Social Science for the world wide web." IEEE Intelligent Systems 29 (5): 84-88. doi: http://dx.doi.org/10.1109/MIS.2014.80. http://markusstrohmaier.info/documents/2014_IEEE_CompSocSci.pdf.

Wagner, Claudia, Markus Strohmaier, and Bernardo A. Huberman. 2014. "Semantic stability and implicit consensus in social tagging streams." IEEE Transactions on Computational Social Systems 1 (1): 108-120. doi: http://dx.doi.org/10.1109/TCSS.2014.2307455.

Wagner, Claudia, Philipp Singer, and Markus Strohmaier. 2014. "The Nature and Evolution of Online Food Preferences." EPJ Data Science 2014. doi: http://dx.doi.org/10.1140/epjds/s13688-014-0036-7. http://claudiawagner.info/publications/datascience_bmc_article.pdf.

Contribution to edited volume

Hannak, Aniko, Claudia Wagner, David Garcia, Alan Mislove, Markus Strohmaier, and Christo Wilson. 2017. " Bias in Online Freelance Marketplaces: Evidence from TaskRabbit and Fiverr." In Proceedings of the 2017 ACM Conference on Computer Supported Cooperative Work and Social Computing (CSCW2017), Portland, OR, USA, February 25 - March 1, 2017, edited by Charlotte P. Lee, Steven E. Poltrock, Louise Barkhuus, Marcos Borges, and Wendy A. Kellogg, 1914-1933. New York: ACM. http://markusstrohmaier.info/documents/2017_CSCW2017_Discrimination.pdf.

Zagovora, Olga, Fabian Flöck, and Claudia Wagner. 2017. ""(Weitergeleitet von Journalistin)": The Gendered Presentation of Professions on Wikipedia." In WebSci '17 Proceedings of the 2017 ACM on Web Science Conference , edited by Peter Fox, Deborah L. McGuinness, Lindsay Poirer, Paolo Boldi, and Katharina Kinder-Kurlanda, 83-92. New York: ACM.

Wagner, Claudia, Philipp Singer, Fariba Karimi, Jürgen Pfeffer, and Markus Strohmaier. 2017. "Sampling from social networks with attributes." In Proceedings of the 26th International Conference on World Wide Web, WWW 2017, Perth, Australia, April 3-7, 2017, edited by Rick Barrett, Rick Cummings, Eugene Agichtein, and Evgeniy Gabrilovich, 1181-1190. New York: ACM. http://markusstrohmaier.info/documents/2017_WWW2017_sampling.pdf.

Hannak, Aniko, Claudia Wagner, David Garcia, Markus Strohmaier, and Christo Wilson. 2016. "Bias in Online Freelance Marketplaces: Evidence from TaskRabbit." In Proceedings of the Workshop on Data and Algorithm Transparency, http://datworkshop.org/papers/dat16-final22.pdf.

Weber, Ingmar, Claudia Wagner, Markus Strohmaier, and Luca Maria Aiello. 2016. "Computational Social Science for the World Wide Web (CSSW3): Tutorial." In Proceedings of the 25th International Conference on World Wide Web, WWW 2016, Montreal, Canada, April 11-15, 2016, edited by Jacqueline Bourdeau, Jim Hendler, Roger Nkambou, Ian Horrocks, and Ben Y. Zhao, ACM 2016 Companion Volume, 1037-1038. New York: ACM.

Karimi, Fariba, Claudia Wagner, Florian Lemmerich, Mohsen Jadidi, and Markus Strohmaier. 2016. "Poster on Inferring Gender from Names on the Web: A Comparative Evaluation of Gender Detection Methods." In Proceedings of the 25th International Conference on World Wide Web, WWW 2016, Montreal, Canada, April 11-15, 2016, edited by Jacqueline Bourdeau, Jim Hendler, Roger Nkambou, Ian Horrocks, and Ben Y. Zhao, ACM 2016 Companion Volume, 53-54. New York: ACM.

Wagner, Claudia, David Garcia, Mohsen Jadidi, and Markus Strohmaier. 2015. "It's a Man's Wikipedia? Assessing Gender Inequality in an Online Encyclopedia." In Proceedings of the Ninth International AAAI Conference on Web and Social Media : 26 - 29 May 2015, University of Oxford, Oxford, UK , 454-463.

Wagner, Claudia, and Luca Maria Aiello. 2015. "Men eat on Mars, Women on Venus? An Empirical Study of Food-Images." In WebSci '15 Proceedings of the ACM Web Science Conference, 63.

Laufer, Paul, Claudia Wagner, Fabian Flöck, and Markus Strohmaier. 2015. "Mining Cross-Cultural Relations from Wikipedia – A Study of 31 European Food Cultures." In WebSci '15 Proceedings of the ACM Web Science Conference , 3.

Perl, Julia, Claudia Wagner, Jérôme Kunegis, and Steffen Staab. 2015. "Twitter as a Political Network: Predicting the Following and Unfollowing Behavior of German Politicians." In Proceedings of the ACM Web Science Conference, WebSci 2015, Oxford, United Kingdom, June 28 - July 1, 2015, edited by David De Roure, Pete Burnap, and Susan Halford, 51:1-51:2. New York: ACM.

Wagner, Claudia, Sitaram Asur, and Joshua Hailpern. 2014. "Religious politicians and creative photographers: automatic user categorization in Twitter." In SocialCom 2013 : SocialCom/PASSAT/BigData/EconCom/BioMedCom 2013 : proceedings : 8-14 September, 2013, Washington, D.C., USA), 303-310. Piscataway, NJ: IEEE. http://claudiawagner.info/publications/socialcom_userClassification_short_new.pdf.

Wagner, Claudia, Markus Strohmaier, and Bernardo A. Huberman. 2014. "Semantic stability in social tagging streams." In Proceedings of the 23rd international conference on World wide web (WWW 2014), 735-746. New York: ACM. http://markusstrohmaier.info/documents/2014_www2014_sem_stab.pdf.

Wagner, Claudia, Philipp Singer, and Markus Strohmaier. 2014. "Spatial and temporal patterns of online food preferences." In 23rd International World Wide Web Conference (WWW2014), Web-Science Track , edited by Chin-Wan Chung, Andrei Z. Broder, Kyuseok Shim, and Torsten Suel, Companion Volume, 553-554. New York: ACM. http://markusstrohmaier.info/documents/2014_www2014_poster_food.pdf.

Lietz, Haiko, Claudia Wagner, Arnim Bleier, and Markus Strohmaier. 2014. "When politicians talk: assessing online conversational practices of political parties on Twitter (Best Paper Award)." In Proceedings of the Eighth International AAAI Conference on Weblogs and Social Media (ICWSM2014), edited by Eytan Adar, Paul Resnick, Munmun De Choudhury, Bernie Hogan, and Alice Oh, 285-294. Ann Arbor, MI: AAAI Press. http://www.aaai.org/ocs/index.php/ICWSM/ICWSM14/paper/view/8069/8129.

Posch, Lisa, Claudia Wagner, Philipp Singer, and Markus Strohmaier. 2013. "Meaning as collective use: predicting semantic hashtag categories on twitter." In 22nd International World Wide Web Conference, WWW '13, Rio de Janeiro, Brazil, May 13-17, 2013, Companion Volume, edited by Daniel Schwabe, Virgilio Almeida, Helmut Glaser, Ricardo Baeza-Yates, and Sue Moon, 621-628. Geneva: International World Wide Web Conferences Steering Committee. http://www2013.wwwconference.org/companion/p621.pdf.

Rowe, Matthew, Claudia Wagner, Markus Strohmaier, and Harith Alani. 2013. "Measuring the topical specificity of online communities." In The semantic web: semantics and big data; 10th International Conference, ESWC 2013, Montpellier, France, May 26-30, 2013; Proceedings, edited by P. Cimiano, and O. Corcho, Lecture Notes in Computer Science, Vol. 7882, 472-486. Berlin: Springer. http://markusstrohmaier.info/documents/2013_ESWC2013_Topical_Specifity.pdf.

Weninger, Felix, Claudia Wagner, Martin Wöllmer, Björn Schuller, and Louis-Philippe Morency. 2013. "Speaker trait characterization in web videos: uniting speech, language, and facial features." In Proceedings of the 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 3647 - 3651. Los Alamitos: IEEE.

Rowe, Matthew, and Claudia Wagner. 2013. "The Semantic Evolution of General and Specific Communities." In The Semantic Web: ESWC 2013 Satellite Events - ESWC 2013 Satellite Events, Montpellier, France, May 26-30, 2013, Revised Selected Papers, edited by Philipp Cimiano, Vanessa López, Stefan Schlobach, and Johanna Völker, Lecture Notes in Computer Science 7955, 277-278. Berlin, Heidelberg : Springer . https://link.springer.com/chapter/10.1007%2F978-3-642-41242-4_41.

Schantl, Johannes, Claudia Wagner, René Kaiser, and Markus Strohmaier. 2013. "The utility of social and topical factors in anticipating repliers in Twitter conversations." In WebSci '13: Proceedings of the 3rd Annual ACM Web Science Conference, edited by Hugh Davies, 376-385. New York: ACM. http://www.markusstrohmaier.info/documents/2013_WebSci2013_Conversation_Analysis.pdf.

Wagner, Claudia, Philipp Singer, Lisa Posch, and Markus Strohmaier. 2013. "The wisdom of the audience: an empirical study of social semantics in Twitter streams." In The semantic web: semantics and big data; 10th International Conference, ESWC 2013, Montpellier, France, May 26-30, 2013; Proceedings, edited by P. Cimiano, and O. Corcho, Lecture Notes in Computer Science, Vol. 7882, 502-516. Berlin: Springer. http://markusstrohmaier.info/documents/2013_ESWC2013_Twitter_Audience.pdf.

Working and discussion paper

Lee, Eun , Fariba Karimi, Hang-Hyun Jo, Markus Strohmaier, and Claudia Wagner. 2017. Homophily explains perception biases in social networks. https://arxiv.org/pdf/1710.08601.pdf.

Karimi, Fariba, Mathieu Génois, Claudia Wagner, Philipp Singer, and Markus Strohmaier. 2017. Visibility of minorities in social networks. https://arxiv.org/pdf/1702.00150.pdf.

Körner, Martin, Tatiana Sennikova, Florian Windhäuser, Claudia Wagner, and Fabian Flöck. 2016. Wikiwhere: An interactive tool for studying the geographical provenance of Wikipedia references. https://arxiv.org/pdf/1612.00985.pdf.

Mitter, Silvia, Claudia Wagner, and Markus Strohmaier. 2013. A categorization scheme for socialbot attacks in online social networks: Paper für ACM WebSci '13: Proceedings of the 3rd Annual ACM Web Science Conference. http://www.markusstrohmaier.info/documents/2013_WebSci2013_Socialbots_Taxonomy.pdf.

Conference contribution

Jadidi, Mohsen, Fariba Karimi, Haiko Lietz, and Claudia Wagner. 2017. "Gender Disparities in Science? Dropout, Productivity, Collaborations and Success of Male and Female Computer Scientists." The First European Symposium on Societal Challenges in Computational Social Science, 2017: Inequality and Imbalance, European Symposium Series on Societal Challenges in Computational Social Science, London, UK, 17.11.2017.

Lee, Eun , Fariba Karimi, Hang-Hyun Jo, Markus Strohmaier, and Claudia Wagner. 2017. "Homophily Explains Perception Biases in Social Networks." The First European Symposium on Societal Challenges in Computational Social Science, 2017: Inequality and Imbalance, European Symposium Series on Societal Challenges in Computational Social Science, London, UK, 16.11.2017.

Tsvetkova, Milena , Claudia Wagner, and Andrew Mao. 2017. "Inequality is Higher in Fixed Clustered Networks with Punishment Institutions." The First European Symposium on Societal Challenges in Computational Social Science, 2017: Inequality and Imbalance, European Symposium Series on Societal Challenges in Computational Social Science, London, UK, 16.11.2017.

Zagovora, Olga, Tatiana Sennikova, Claudia Wagner, Fabian Flöck, and Markus Strohmaier. 2016. "Cultural Relation Mining on Wikipedia." Wiki Workshop at the International AAAI Conference on Web and Social Media (ICWSM 2016), Köln, 17.05.2016. http://olgazagovora.ucoz.net/_ld/0/2_icwsm2016_poste.pdf.

Wagner, Claudia. 2016. "Gender Inequalities in Wikipedia." Workshop on Natural Language Processing and CSS at the ACM WebScience conference, Hannover.

Wagner, Claudia. 2016. "Gender Inequalities in Wikipedia." Wiki Workshop at ICWSM, Köln.

Kaczmirek, Lars, Philipp Mayr, Ravi Vatrapu, Arnim Bleier, Manuela S. Blumenberg, Tobias Gummer, Kjeld Hansen, Abid Hussein, Zeshan Ali Jaffari, Katharina E Kinder-Kurlanda, Haiko Lietz, Markus Strohmaier, Claudia Wagner, Katrin Weller, Christof Wolf, and Chris James Zimmerman. 2014. "PEP-TF: Social media monitoring of the campaigns for the 2013 German Bundestag elections on Facebook and Twitter." Social Media Communication Workshop, Mannheim, 28.03.2014.

Mitter, Silvia, Claudia Wagner, and Markus Stohmaier. 2013. "A categorization scheme for socialbot attacks in online social networks." ACM Web Science 2013: 5th Annual ACM Web Science Conference, Paris. http://www.markusstrohmaier.info/documents/2013_WebSci2013_Socialbots_Taxonomy.pdf.

Mitter, Silvia, Claudia Wagner, and Markus Strohmaier. 2013. "Understanding the impact of socialbot attacks in online social networks." ACM Web Science 2013: 5th Annual ACM Web Science Conference, Paris. http://markusstrohmaier.info/documents/2013_WebSci2013_Socialbots_Impact.pdf.

Contribution not at conference

Singer, Philipp, Claudia Wagner, Fariba Karimi, Jürgen Pfeffer, and Markus Strohmaier. 2016. "Poster on Evidence of sampling bias in homophilic and heterophilic networks." 3rd GESIS Computational Social Science Winter Symposium.

Wagner, Claudia. 2015. "Gender Inequality in Wikipedia: Invited Talk at Wikimedia Foundation." Wikimedia Meeting, Berlin.

Wagner, Claudia. 2015. "Inequalities and Biases in socio-technical systems." Invited Slam at the first Science Slam at the International AAAI Conference on Web and Social Media (ICWSM 2015), May 2015, Oxford.

Wagner, Claudia. 2014. "Food and Culture." Invited talk at Yahoo Labs, Barcelona.

Wagner, Claudia. 2014. "Food and Culture." Invited Talk at Telefonica I+D, Barcelona.

Wagner, Claudia. 2014. "Food and Culture - CSS Research @GESIS." Invited talk at Indiana University, Network Science Institute, Bloomington, Indiana.

Lecture

Strohmaier, Markus, and Claudia Wagner. 2017. "Computational Social Science: (Vorlesung/Übung)." Universität Koblenz-Landau. Koblenz. SS 2017: 4 SWS.

Wagner, Claudia, and Christoph Carl Kling. 2017. "Data Science." Universität Koblenz-Landau. Koblenz. SS 2017: 2 SWS.

Tutorial

Wagner, Claudia, and Christoph Carl Kling. 2017. "Übung zu Data Science." Universität Koblenz-Landau. Koblenz. SS 2017 : 2 SWS.

Other

Wagner, Claudia. 2018. "Forschungspraktikum/Projektpraktikum CSS." Universität Koblenz-Landau. Koblenz. WS 2017/18: 6 SWS.

Wagner, Claudia. 2016. "Computational Social Science for the World Wide Web: Tutorial at WWW 2016." Montréal.

Wagner, Claudia. 2016. "Computational Social Science Tutorial: Tutorial at WebScience Summer School." Koblenz.

Wagner, Claudia. 2016. "Data Science Tutorial: Invited Tutorial at the Semantic Web and Big Data Summer School." Dubrovnik.

Wagner, Claudia. 2014. "Introduction to Data Science: Invited Tutorial at WebScience Summer School." Southampton.

Event

Wagner, Claudia. 2017. "First Summer School on Methods for Computational Social Science." Summer School Series on Methods for Computational Social Science, Sardinia, 24.07.2017 - 29.07.2017.

Génois, Mathieu, Katrin Weller, Julian Kohne, Claudia Wagner, and Markus Strohmaier. 2017. "Workshop: Addressing Big Societal Challenges with Digital Behavioral Data." The First European Symposium on Societal Challenges in Computational Social Science, 2017: Inequality and Imbalance, European Symposium Series on Societal Challenges in Computational Social Science, London, UK, 15.11.2017 - 15.11.2017.

Strohmaier, Markus, Claudia Wagner, Katrin Weller, and Diana Lindner. 2016. "The 10th International Conference on Web and Social Media." ICWSM-16, Köln, 17.05.2016 - 20.05.2016.