Kristen Vaccaro

schoolUniversity of California - San Diegobar_chart#560 Global Rank

Total Papers

HCI Rank

#560

Research Areas

Years Active

Recent Publications

Taking the control back – An adventure in developing personalized content moderation

Online platforms are riddled with harassment, which significantly impacts the well-being of users. Unfortunately, the content moder- ation solutions provided by platforms often disappoint end-users as they fail to equip individuals with sufficient controls for their personal situations. In this work, the author, who p…

CHI '26CorrespondingAI Ethics, Fairness & Accountability +2

Deception at Scale: Deceptive Designs in 1K LLM-Generated E-Commerce Components

Recent work has shown that front-end code generated by Large Language Models (LLMs) can embed deceptive designs. To assess the magnitude of this problem, identify the factors that influence deceptive design production, and test strategies for reducing deceptive designs, we carried out two studies which generated and a…

CSCW '255th+ AuthorHonorable MentionVoice Technology

The Balancing Act of Social Audio Facilitators: When Self-Promotion Overshadows Community Care

Voice-based social media platforms, such as X-Spaces, Discord, and Clubhouse have seen considerable growth in recent years. Such platforms enable attendees to have real-time, ephemeral interactions with each other. While prior research on these spaces has predominantly focused on moderating harms, our work seeks to un…

CHI '253rd AuthorBest PaperPrivacy by Design & User Control +2

Placebo Effect of Control Settings in Feeds Are Not Always Strong

Recent work has catalogued a variety of ``dark'' design patterns, including deception, that undermine user intent. We focus on deceptive ``placebo'' control settings for social media that do not work. While prior work reported that placebo controls increase feed satisfaction, we add to this body of knowledge by addr…

CSCW '24CorrespondingSession 2d: Analyzing and Shaping User Behavior on Social Media

NewsGuesser: Using Curiosity to Reduce Selective Exposure

Selective exposure has long been a concern of HCI researchers as it can lead to ideological polarization and distrust in society. Efforts have tried to reduce selective exposure online by serving diversified news content, but their effectiveness has been limited by users’ lack of motivation to engage with the diverse…

CHI '235th+ AuthorSocial & Collaborative VR +1

Challenges of Moderating Social Virtual Reality

Recent years have seen a rise in social virtual reality (VR) platforms that allow people to interact in real-time through voice and gestures. The ephemeral nature of communication on these platforms can enable new forms of harmful behavior and new challenges for moderators. We performed virtual field research on three…

CSCW '22CorrespondingData and Privacy; Data and Privacy

Understanding Risks of Privacy Theater with Differential Privacy

Differential privacy is one of the most popular technologies in the growing area of privacy-conscious data analytics. But differential privacy, along with other privacy-enhancing technologies, may enable privacy theater. In implementations of differential privacy, certain algorithm parameters control the tradeoff betw…

CSCW '211st AuthorContent Moderation

Contestability For Content Moderation

Content moderation systems for social media have had numerous issues of bias, in terms of race, gender, and ability among many others. One proposal for addressing such issues in automated decision making is by designing for contestability, whereby users can shape and influence how decisions are made. In this study, we…

CSCW '201st AuthorUnderstanding and Fighting Toxicity / Moderation

“At the End of the Day Facebook Does What It Wants”: How Users Experience Contesting Algorithmic Content Moderation

Interest has grown in designing algorithmic decision making systems for contestability. In this work, we study how users experience contesting unfavorable social media content moderation decisions. A large-scale online experiment tests whether different forms of appeals can improve users’ experiences of automated deci…

CHI '202nd AuthorPrivacy by Design & User Control +1

Awareness, Navigation, and Use of Feed Control Settings Online

Control settings are abundant and have significant effects on user experiences. One example of an impactful but understudied area is feed settings. In this study, we investigated awareness, navigation, and use of feed settings. We began by creating a taxonomy of feed settings on social media and search sites. Via an o…

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