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  1. Article

    Open Access

    Publisher Correction: The impact of toxic trolling comments on anti-vaccine YouTube videos

    Kunihiro Miyazaki, Takayuki Uchiba, Haewoon Kwak, Jisun An in Scientific Reports (2024)

  2. Article

    Open Access

    The impact of toxic trolling comments on anti-vaccine YouTube videos

    Anti-vaccine trolling on video-hosting websites hinders efforts to increase vaccination rates by using toxic language and threatening claims to intimidate people and promote vaccine hesitancy. However, there i...

    Kunihiro Miyazaki, Takayuki Uchiba, Haewoon Kwak, Jisun An in Scientific Reports (2024)

  3. Article

    Open Access

    Public perception of generative AI on Twitter: an empirical study based on occupation and usage

    The emergence of generative AI has sparked substantial discussions, with the potential to have profound impacts on society in all aspects. As emerging technologies continue to advance, it is imperative to faci...

    Kunihiro Miyazaki, Taichi Murayama, Takayuki Uchiba, Jisun An in EPJ Data Science (2024)

  4. No Access

    Chapter and Conference Paper

    Stylistic Features Usage: Similarities and Differences Using Multiple Social Networks

    User engagement on social networks is essential for news outlets where they often distribute online content. News outlets simultaneously leverage multiple social media platforms to reach their overall audience...

    Kholoud Khalil Aldous, Jisun An, Bernard J. Jansen in Social Informatics (2019)

  5. No Access

    Chapter and Conference Paper

    Predicting Audience Engagement Across Social Media Platforms in the News Domain

    We analyze cross-platform factors for posts on both single and multiple social media platforms for numerous news outlets to better predict audience engagement, precisely the number of likes and comments. We co...

    Kholoud Khalil Aldous, Jisun An, Bernard J. Jansen in Social Informatics (2019)

  6. No Access

    Chapter

    Automatic Persona Generation for Online Content Creators: Conceptual Rationale and a Research Agenda

    As the quantity of social and online analytics data has drastically increased, a wide variety of methods are deployed to make sense of this data, typically via computational and algorithmic approaches. However...

    Joni Salminen, Bernard J. Jansen, Jisun An, Haewoon Kwak in Personas - User Focused Design (2019)

  7. No Access

    Chapter and Conference Paper

    Gender and Racial Diversity in Commercial Brands’ Advertising Images on Social Media

    Gender and racial diversity in the mediated images from the media shape our perception of different demographic groups. In this work, we investigate gender and racial diversity of 85,957 advertising images sha...

    Jisun An, Haewoon Kwak in Social Informatics (2019)

  8. No Access

    Article

    Customer segmentation using online platforms: isolating behavioral and demographic segments for persona creation via aggregated user data

    We propose a novel approach for isolating customer segments using online customer data for products that are distributed via online social media platforms. We use non-negative matrix factorization to first ide...

    Jisun An, Haewoon Kwak, Soon-gyo Jung, Joni Salminen in Social Network Analysis and Mining (2018)

  9. No Access

    Chapter and Conference Paper

    Combining Behaviors and Demographics to Segment Online Audiences: Experiments with a YouTube Channel

    Social media channels with audiences in the millions are increasingly common. Efforts at segmenting audiences for populations of these sizes can result in hundreds of audience segments, as the compositions of ...

    Bernard J. Jansen, Soon-gyo Jung, Joni Salminen, Jisun An, Haewoon Kwak in Internet Science (2018)

  10. No Access

    Chapter and Conference Paper

    Diversity in Online Advertising: A Case Study of 69 Brands on Social Media

    Lack of diversity in advertising is a long-standing problem. Despite growing cultural awareness and missed business opportunities, many minorities remain under- or inappropriately represented in advertising. P...

    Jisun An, Ingmar Weber in Social Informatics (2018)

  11. No Access

    Chapter and Conference Paper

    Convergence of Media Attention Across 129 Countries

    The objective of this study is to assess the longitudinal trends of media similarity and dissimilarity on the international scale. As news value has well-established political, cultural, and economic consequen...

    Jisun An, Hassan Aldarbesti, Haewoon Kwak in Social Informatics (2017)

  12. Chapter and Conference Paper

    Multidimensional Analysis of the News Consumption of Different Demographic Groups on a Nationwide Scale

    Examining 103,133 news articles that are the most popular for different demographic groups in Daum News (the second most popular news portal in South Korea) during the whole year of 2015, we provided multi-lev...

    Jisun An, Haewoon Kwak in Social Informatics (2017)

  13. Article

    Open Access

    High correlation of Middle East respiratory syndrome spread with Google search and Twitter trends in Korea

    The Middle East respiratory syndrome coronavirus (MERS-CoV) was exported to Korea in 2015, resulting in a threat to neighboring nations. We evaluated the possibility of using a digital surveillance system base...

    Soo-Yong Shin, Dong-Woo Seo, Jisun An, Haewoon Kwak, Sung-Han Kim in Scientific Reports (2016)

  14. Article

    Open Access

    Whom should we sense in “social sensing” - analyzing which users work best for social media now-casting

    Given the ever increasing amount of publicly available social media data, there is growing interest in using online data to study and quantify phenomena in the offline “real” world. As social media data can be...

    Jisun An, Ingmar Weber in EPJ Data Science (2015)

  15. Article

    Open Access

    Sharing political news: the balancing act of intimacy and socialization in selective exposure

    One might think that, compared to traditional media, social media sites allow people to choose more freely what to read and what to share, especially for politically oriented news. However, reading and sharing...

    Jisun An, Daniele Quercia, Meeyoung Cha, Krishna Gummadi, Jon Crowcroft in EPJ Data Science (2014)

  16. No Access

    Chapter

    A First Look at Global News Coverage of Disasters by Using the GDELT Dataset

    In this work, we reveal the structure of global news coverage of disasters and its determinants by using a large-scale news coverage dataset collected by the GDELT (Global Data on Events, Location, and Tone) p...

    Haewoon Kwak, Jisun An in Social Informatics (2014)

  17. No Access

    Chapter and Conference Paper

    Why Do I Retweet It? An Information Propagation Model for Microblogs

    Microblogging platforms are Web 2.0 services that represent a suitable environment for studying how information is propagated in social networks and how users can become influential. In this work we analyse th...

    Fabio Pezzoni, Jisun An, Andrea Passarella, Jon Crowcroft in Social Informatics (2013)