• Publications
  • Influence
The Web 2.0 way of learning with technologies
While there is a lot of hype around various concepts associated with the term Web 2.0 in industry, little academic research has so far been conducted on the implications of this new approach for theExpand
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Exploring Intentional Modeling and Analysis for Enterprise Architecture
An enterprise architecture is intended to be a comprehensive blueprint describing the key components and relationships for an enterprise from strategies to business processes to information systemsExpand
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It's a Man's Wikipedia? Assessing Gender Inequality in an Online Encyclopedia
Wikipedia is a community-created encyclopedia that contains information about notable people from different countries, epochs and disciplines and aims to document the world's knowledge from a neutralExpand
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The power of prediction with social media
– Social media provide an impressive amount of data about users and their interactions, thereby offering computer and social scientists, economists, and statisticians – among others – newExpand
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Bias in Online Freelance Marketplaces: Evidence from TaskRabbit and Fiverr
Online freelancing marketplaces have grown quickly in recent years. In theory, these sites offer workers the ability to earn money without the obligations and potential social biases associated withExpand
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Stop thinking, start tagging: tag semantics emerge from collaborative verbosity
Recent research provides evidence for the presence of emergent semantics in collaborative tagging systems. While several methods have been proposed, little is known about the factors that influenceExpand
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When Social Bots Attack: Modeling Susceptibility of Users in Online Social Networks
Social bots are automatic or semi-automatic computer programs that mimic humans and/or human behavior in online social networks. Social bots can attack users (targets) in online social networks toExpand
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Towards linking buyers and sellers: detecting commercial Intent on twitter
Since more and more people use the micro-blogging platform Twitter to convey their needs and desires, it has become a particularly interesting medium for the task of identifying commercialExpand
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It's Not in Their Tweets: Modeling Topical Expertise of Twitter Users
One of the key challenges for users of social media is judging the topical expertise of other users in order to select trustful information sources about specific topics and to judge credibility ofExpand
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HypTrails: A Bayesian Approach for Comparing Hypotheses About Human Trails on the Web
When users interact with the Web today, they leave sequential digital trails on a massive scale. Examples of such human trails include Web navigation, sequences of online restaurant reviews, orExpand
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