Publications

Selected Publications

  • Philipp Singer*, Florian Lemmerich*, Robert West, Leila Zia, Ellery Wulczyn, Markus Strohmaier and Jure Leskovec (* equal contribution),
    Why We Read Wikipedia,
    26th International World Wide Web Conference, Perth, Australia, 2017 new
    (acceptance rate 164/966, 17% quota) [PDF] [arXiv]
  • Claudia Wagner*, Philipp Singer*, Fariba Karimi, Jürgen Pfeffer and Markus Strohmaier (* equal contribution),
    Sampling from social networks with attributes,
    26th International World Wide Web Conference, Perth, Australia, 2017 new
    (acceptance rate 164/966, 17% quota) [PDF] [arXiv]
  • Dimitar Dimitrov*, Philipp Singer*, Florian Lemmerich and Markus Strohmaier (* equal contribution),
    What Makes a Link Successful on Wikipedia?,
    26th International World Wide Web Conference, Perth, Australia, 2017 new
    (acceptance rate 164/966, 17% quota) [PDF] [arXiv]
  • Florian Lemmerich, Martin Becker, Philipp Singer, Denis Helic, Andreas Hotho and Markus Strohmaier,
    Mining Subgroups with Exceptional Transition Behavior,
    22nd ACM SIGKDD Conference on Knowledge Discovery and Data Mining, San Francisco, USA, 2016
    (full paper acceptance rate 70/784, 9% quota) [PDF]
  • Philipp Singer, Denis Helic, Andreas Hotho and Markus Strohmaier,
    HypTrails: A Bayesian Approach for Comparing Hypotheses About Human Trails on the Web,
    24th International World Wide Web Conference, Florence, Italy, 2015 (Best Paper Award)
    (acceptance rate 131/929, 14.10% quota) [PDF] [arXiv] [Slides] [Tutorial] [Talk] [Code]
  • Philipp Singer, Denis Helic, Behnam Taraghi and Markus Strohmaier,
    Detecting Memory and Structure in Human Navigation Patterns Using Markov Chain Models of Varying Order,
    PLoS ONE, vol 9(9), 2014 [HTML/PDF] [arXiv] [Code]

Journal Publications

  • Martin Becker, Florian Lemmerich, Philipp Singer, Markus Strohmaier and Andreas Hotho,
    MixedTrails: Bayesian Hypothesis Comparison on Heterogeneous Sequential Data,

    Data Mining and Knowledge Discovery, 2017 [arXiv]
  • Philipp Singer, Denis Helic, Andreas Hotho and Markus Strohmaier,
    A Bayesian Method for Comparing Hypotheses About Human Trails,
    ACM Transactions on the Web, vol 11(3), 2017
  • Lisette Espín-Noboa, Florian Lemmerich, Markus Strohmaier and Philipp Singer,
    JANUS: A hypothesis-driven Bayesian Approach for Understanding Edge Formation in Attributed Multigraphs,
    Applied Network Science, vol 2(16), 2017 [HTML/PDF]
  • Philipp Singer, Emilio Ferrara, Farshad Kooti, Markus Strohmaier and Kristina Lerman,
    Evidence of Online Performance Deterioration in User Sessions on Reddit,
    PLoS ONE, vol 11(8), 2016 [HTML/PDF] [arXiv]
  • Stephan Dörfel, Daniel Zoller, Philipp Singer, Thomas Niebler, Andreas Hotho and Markus Strohmaier,
    What Users Actually do in a Social Tagging System - A Study of User Behavior in BibSonomy,
    ACM Transactions on the Web, 2016 [PDF]
  • Simon Walk, Philipp Singer, Markus Strohmaier, Denis Helic, Natalya F Noy and Mark A. Musen,
    How to Apply Markov Chains for Modeling Sequential Edit Patterns in Collaborative Ontology-Engineering Projects,
    International Journal of Human-Computer Studies, vol 84, 51-66, 2015 [arXiv] [URL]
  • Claudia Wagner, Philipp Singer and Markus Strohmaier,
    The Nature and Evolution of Online Food Preferences,
    EPJ Data Science, vol 3(38), 2015 [HTML/PDF]
  • Philipp Singer, Denis Helic, Behnam Taraghi and Markus Strohmaier,
    Detecting Memory and Structure in Human Navigation Patterns Using Markov Chain Models of Varying Order,
    PLoS ONE, vol 9(7), 2014 [HTML/PDF] [arXiv] [Code]
  • Simon Walk, Philipp Singer, Markus Strohmaier, Tania Tudorache, Mark A. Musen and Natalya F. Noy,
    Discovering Beaten Paths in Collaborative Ontology-Engineering Projects using Markov Chains,
    Journal of Biomedical Informatics (JBI), vol 51, 254-271, 2014 [PDF] [arXiv] [Code]
  • Claudia Wagner, Philipp Singer, Markus Strohmaier and Bernardo Huberman,
    Semantic Stability and Implicit Consensus in Social Tagging Streams,
    IEEE Transactions on Computational Social Systems, vol 1(1), 108–120, 2014
  • Philipp Singer, Thomas Niebler, Markus Strohmaier and Andreas Hotho,
    Computing Semantic Relatedness from Human Navigational Paths: A Case Study on Wikipedia,
    International Journal on Semantic Web and Information Systems (IJSWIS), vol 9(4), 41-70, 2013 [PDF] [Code]

Conference Publications

2017

  • Philipp Singer*, Florian Lemmerich*, Robert West, Leila Zia, Ellery Wulczyn, Markus Strohmaier and Jure Leskovec (* equal contribution),
    Why We Read Wikipedia,
    26th International World Wide Web Conference, Perth, Australia, 2017 [PDF] [arXiv]
  • Claudia Wagner*, Philipp Singer*, Fariba Karimi, Jürgen Pfeffer and Markus Strohmaier (* equal contribution),
    Sampling from social networks with attributes,
    26th International World Wide Web Conference, Perth, Australia, 2017 [PDF] [arXiv]
  • Dimitar Dimitrov*, Philipp Singer*, Florian Lemmerich and Markus Strohmaier (* equal contribution),
    What Makes a Link Successful on Wikipedia?,
    26th International World Wide Web Conference, Perth, Australia, 2017 [PDF] [arXiv]

2016

  • Lisette Espín-Noboa, Florian Lemmerich, Markus Strohmaier and Philipp Singer,
    A Hypotheses-driven Bayesian Approach for Understanding Edge Formation in Attributed Multigraphs,
    5th International Workshop on Complex Networks and their Applications, Milan, Italy, 2016 [PDF]
  • Florian Lemmerich, Martin Becker, Philipp Singer, Denis Helic, Andreas Hotho and Markus Strohmaier,
    Mining Subgroups with Exceptional Transition Behavior,
    22nd ACM SIGKDD Conference on Knowledge Discovery and Data Mining, San Francisco, USA, 2016 [PDF]

2015

  • Martin Becker, Philipp Singer, Florian Lemmerich, Andreas Hotho, Denis Helic and Markus Strohmaier,
    Photowalking the City: Comparing Hypotheses About Urban Photo Trails on Flickr,
    7th International Conference on Social Informatics, Beijing, China, 2015 [PDF]
  • Simon Walk, Philipp Singer, Lisette Espín Noboa, Tania Tudorache, Mark A. Musen and Markus Strohmaier,
    Understanding How Users Edit Ontologies: Comparing Hypotheses About Four Real-World Projects,
    14th International Semantic Web Conference, Betlehem, Pennsylvania, USA, 2015 [PDF]
  • Dimitar Dimitrov, Philipp Singer, Denis Helic and Markus Strohmaier,
    The Role of Structural Information for Designing Navigational User Interfaces,
    26th ACM Conference on Hypertext and Social Media, Cyprus, 2015 [PDF]
  • Philipp Singer, Denis Helic, Andreas Hotho and Markus Strohmaier,
    HypTrails: A Bayesian Approach for Comparing Hypotheses About Human Trails on the Web,
    24th International World Wide Web Conference, Florence, Italy, 2015 (Best Paper Award)  [PDF] [arXiv] [Slides] [Tutorial] [Talk] [Code]

2014

  • Simon Walk*, Philipp Singer* and Markus Strohmaier (* equal contribution),
    Sequential Action Patterns in Collaborative Ontology Engineering Projects: A Case-study in the Biomedical Domain,
    23rd ACM Conference on Information and Knowledge Management, Shanghai, China, 2014 [PDF] [Slides] [Code 1] [Code 2]
  • Claudia Wagner*, Philipp Singer*, Markus Strohmaier and Bernardo Huberman (* equal contribution),
    Semantic Stability in Social Tagging Streams,
    23rd International World Wide Web Conference, Seoul, South Korea, 2014 [PDF] [arXiv]
  • Philipp Singer*, Fabian Flöck*, Clemens Meinhart, Elias Zeitfogel and Markus Strohmaier (* equal contribution),
    Evolution of Reddit: From the Front Page of the Internet to a Self-referential Community?,
    Web-Science Track at the 23rd International World Wide Web Conference, Seoul, South Korea, 2014 [PDF] [arXiv] [Data]
  • Philipp Singer,
    Understanding, Leveraging and Improving Human Navigation on the Web,
    23rd International World Wide Web Conference, Seoul, South Korea, 2014 [PhD Symposium] [PDF]

 2013

  • Claudia Wagner, Philipp Singer, Lisa Posch and Markus Strohmaier,
    The Wisdom of the Audience: An Empirical Study of Social Semantics in Twitter Streams,
    10th European Semantic Web Conference (ESWC2013), Montpellier, France, 2013 [PDF]
  • Thomas Niebler, Philipp Singer, Dominik Benz, Christian Körner, Markus Strohmaier and Andreas Hotho,
    How Tagging Pragmatics Influence Tag Sense Discovery in Social Annotation Systems,
    European Conference On Information Retrieval, Moscow, Russia, 2013 [PDF]

2012

  • Christoph Trattner, Philipp Singer, Denis Helic and Markus Strohmaier,
    Exploring the Differences and Similarities of Hierarchical Decentralized Search and Human Navigation in Information Networks,
    i-Know 2012, Graz, Austria, 2012 (Best Paper Award) [PDF] [Slides]
  • Karin Schöfegger, Christian Körner and Philipp Singer,
    Learning User Characteristics from Social Tagging Behavior,
    23rd ACM Conference on Hypertext and Social Media, Milwaukee, Wisconsin, USA, 2012 [PDF]

Workshop Publications

  • Lisette Espín-Noboa, Florian Lemmerich, Philipp Singer and Markus Strohmaier,
    Discovering and Characterizing Mobility Patterns in Urban Spaces: A Study of Manhattan Taxi Data,
    6th International Workshop on Location and the Web at WWW2016, Montreal, Canada, 2016 [PDF] [arXiv]
  • Lisa Posch, Claudia Wagner, Philipp Singer and Markus Strohmaier,
    Meaning as Collective Use: Predicting Hashtag Semantics on Twitter,
    3rd workshop on Making Sense of Microposts at WWW2013, Rio de Janeiro, Brazil, 2013 (Best Paper Award) [PDF]
  • Philipp Singer, Claudia Wagner and Markus Strohmaier,
    Understanding co-evolution of social and content networks on Twitter,
    2nd workshop on Making Sense of Microposts at WWW2012, Lyon, France, 2012 [PDF] [Slides]

Poster & Demo Publications

  • Dimitar Dimitrov, Philipp Singer, Florian Lemmerich and Markus Strohmaier,
    Visual Positions of Links and Clicks on Wikipedia,
    25th International World Wide Web Conference, Montreal, Canada, 2016 [PDF]
  • Martin Becker, Philipp Singer, Florian Lemmerich, Andreas Hotho, Denis Helic and Markus Strohmaier,
    VizTrails: An Information Visualization Tool for Exploring Geographic Movement Trajectories,
    26th ACM Conference on Hypertext and Social Media, Cyprus, 2015 [PDF]
  • Claudia Wagner, Philipp Singer and Markus Strohmaier,
    Spatial and Temporal Patterns of Online Food Preferences,
    Web-Science Track at the 23rd International World Wide Web Conference, Seoul, South Korea, 2014 [PDF]
  • Stephan Dörfel, Daniel Zoller, Philipp Singer, Thomas Niebler, Andreas Hotho and Markus Strohmaier,
    How Social is Social Tagging?,
    23rd International World Wide Web Conference, Seoul, South Korea, 2014 [PDF]
  • Philipp Singer, Thomas Niebler, Markus Strohmaier and Andreas Hotho,
    Computing Semantic Relatedness from Human Navigational Paths on Wikipedia,
    22nd International World Wide Web Conference, Rio de Janeiro, Brazil, 2013 [PDF] [Code]

Tutorials

  • Philipp Singer and Florian Lemmerich,
    Analyzing Sequential User Information on the Web,
    25th International World Wide Web Conference, Montreal, Canada, 2016 [PDF] [website]

Without Proceedings

  • Philipp Singer, Claudia Wagner, Fariba Karimi, Jürgen Pfeffer and Markus Strohmaier,
    Evidence of sampling bias in homophilic and heterophilic networks,
    Computational Social Science Winter Symposium, Cologne, Germany, 2016
  • Philipp Singer, Emilio Ferrara, Farshad Kooti, Markus Strohmaier and Kristina Lerman,
    Evidence of Online Performance Deterioration in User Sessions on Reddit,
    10th International Conference on Web and Social Media, Cologne, Germany, 2016

Book Chapters

  • Philipp Singer, Claudia Wagner and Markus Strohmaier,
    Factors influencing the co-evolution of social and content networks in online social media,
    Modeling and Mining Ubiquitous Social Media, (7472) Springer Verlag, Heidelberg, Germany, 2012 [PDF]
  • Philipp Singer, Thomas Niebler, Markus Strohmaier and Andreas Hotho,
    Folksonomies,
    Encyclopedia of Social Network Analysis and Mining, Springer, 2012.
  • Philipp Singer, Markus Strohmaier and Denis Helic,
    Social Bookmarking,
    Web 2.0 und Social Media in der Unternehmenspraxis, Grundlagen, Anwendungen und Methoden mit zahlreichen Fallstudien, ISBN 978-3-486-59832-2 [German] [Amazon]

Theses

  • Philipp Singer,
    Modeling Aspects of Human Trails on the Web,
    Ph.D. Thesis,  Graz University of Technology, Graz, 2014.
    Supervisor: Dr. Markus Strohmaier [PDF]
  • Philipp Singer,
    Time Series Analysis of Online Social Network Data and Content,
    Master's Thesis, Graz University of Technology, Graz, 2011.
    Supervisor: Dr. Markus Strohmaier [PDF]
  • Philipp Singer,
    Synchronnutzung von Medien,
    Bachelor's Thesis, Graz University of Technology, Graz, 2010.
    Supervisor: Dr. Michael Granitzer [German] [PDF]