Isaac Johnson

schoolNorthwestern Universitybar_chart#2891 Global Rank

Total Papers

HCI Rank

#2891

Research Areas

Years Active

Recent Publications

Addressing Age-Related Bias in Sentiment Analysis

Computational approaches to text analysis are useful in understanding aspects of online interaction, such as opinions and subjectivity in text. Yet, recent studies have identified various forms of bias in language-based models, raising concerns about the risk of propagating social biases against certain groups based o…

CSCW '184th AuthorSharing Economy

Quality Standards, Service Orientation, and Power in Airbnb and Couchsurfing

Although Couchsurfing and Airbnb are both online communities that help users host strangers in their homes, they differ in an important sense: Couchsurfing prohibits monetary payment while Airbnb is built around it.We conducted interviews with users experienced on both Couchsurfing and Airbnb (``dual-users'') to bette…

CHI '182nd AuthorGeospatial & Map Visualization +1

Defining and Predicting the Localness of Volunteered Geographic Information using Ground Truth Data

Many applications of geotagged content are predicated on the concept of localness (e.g., local restaurant recommendation, mining social media for local perspectives on an issue). However, definitions of who is a “local” in a given area are typically informal and ad-hoc and, as a result, approaches for localness assess…

CHI '182nd AuthorBest PaperCommunity Collaboration & Wikipedia +1

Examining Wikipedia With a Broader Lens: Quantifying the Value of Wikipedia’s Relationships with Other Large-Scale Online Communities

The extensive Wikipedia literature has largely considered Wikipedia in isolation, outside of the context of its broader Internet ecosystem. Very recent research has demonstrated the significance of this limitation, identifying critical relationships between Google and Wikipedia that are highly relevant to many areas o…

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