Chaoran Chen

Excited to report on another year of a strong showing of @NotreDame HCI community at #CHI2026. This milestone reflects the incredible hard work and creativity of our students, collaborators, and colleagues hci.nd.edu/news/notre-dam…

CFP | CHI 2026 Workshop (Barcelona, in-person): Human-Agent Collaboration LLM agents can sustain open-ended dialogue, reason, plan, and take action. Yet most still struggle to collaborate with humans: shared context, mutual awareness, mixed initiative, and shared accountability. The gap shows up as brittle coordination and trust miscalibration, plus risks like hallucinations, privacy/security failures, misaligned autonomy, and over-anthropomorphization. In this workshop, we propose a concrete design lens: treat LLM agents as remote collaborators. We could draw on decades of CSCW and HCI research to ask what carries over from distributed teamwork, what breaks, and what new interaction patterns we need for mixed-initiative, multi-party, and asynchronous human–agent work. We’ll have keynotes, panel discussions, selected lightning talks, posters, and a hands-on storyboard design session to map open problems and design directions. How to participate: (1) Submit a 2–4 page position paper (accepted papers receive reserved participation slots), or (2) Apply via a participatory form describing what you want to contribute or learn (invitations depend on available capacity). Submission Deadline: Feb 15, 2026 (AoE) Website for Details: …p-human-agent-collaboration.hailab.io @dakuowang @TobyJLi @CharlieCRChen @tongshuangwu @AprilWang95 #CHI2026 #HCI #CSCW #HumanAI #AIAgents #LLM #LLMAgent #GenAI #AI #HumanCenteredAI #HCAI #HumanAIInteraction #HAI #CognitiveSystems #MixedInitiative #Collaboration #Teamwork #UXResearch #UI #ResponsibleAI

📢 We are hosting a #CHI2026 workshop on Human-Agent Collaboration! We study LLM agents as remote collaborators, building on CSCW work on distributed teamwork to rethink human–agent coordination, trust, and accountability. CfP & details: …p-human-agent-collaboration.hailab.io #HCI #CSCW

My 1st time at @acm_ccs (and any security conference)! Please say hi if you are around! I've been having lots of Taiwanese food🍲🥘🇹🇼 We (@tianshi_li @yaxingyao @scyrusk) will host workshop on Human-Centered AI Privacy and Security (HAIPS) (haips.com) this Friday!

Glad to see our paper was shared by @PsydereVT

Excited to attend #UIST2025 in beautiful Busan, Korea! It's wonderful to reunion with old friends and meet new folks. Please say hi if you are around! The wonderful students from my group will showcase several very interesting papers in the next three days. Check them out! (1/4)

Dark Patterns Meet GUI Agents: LLM Agent Susceptibility to Manipulative Interfaces and the Role of Human Oversight This paper examines how dark patterns in GUI design manipulate both large language model-powered agents and human users, revealing vulnerabilities in their decision-making processes and highlighting the need for improved human oversight and regulatory measures to enhance user agency and safety. Jingyu Tang @JingyuTang621 , Chaoran Chen @CharlieCRChen , Jiawen Li, Zhiping Zhang @zhipinghci , Bingcan Guo @gloriakaku , Ibrahim Khalilov, Simret Araya Gebreegziabher @simret_araya , Bingsheng Yao @BingshengY , Dakuo Wang @dakuowang , Yanfang Ye, Tianshi Li @tianshi_li , Ziang Xiao @ZiangXiao , Yaxing Yao @yaxingyao , Toby Jia-Jun Li @TobyJLi University of Notre Dame; University of Michigan; Northeastern University; University of Washington; Johns Hopkins University arxiv.org/pdf/2509.10723

Digital tasks are increasingly delegated to GUI agents. Can they resist dark patterns? Not always. Our research found GUI agents fail by prioritizing task completion over safety. While human oversight can help, it introduces costs such as attentional tunneling and cognitive load.

Honored to present at the GUI Agent Research Symposium in Mountain View I shared insights on modes of human–agent collaboration and the emerging privacy & security threats within these interactions. Grateful for the engaging roundtable with all researchers & founders.

Young visitors to a recent educational event at the @NMNH tested their digital privacy awareness with an interactive tool created by computer scientists including @yaxingyao and @LanjingLiu from @JohnsHopkins and @TobyJLi from @NotreDame. Learn more: cs.jhu.edu/news/computer-…

We (@yaxingyao, @juliaqian21, @CharlieCRChen, @LanjingLiu) had a fun interactive exhibition on "Privacy, Security, and Safety in Digital Space" at the Smithsonian National Museum of Natural History in July. Check out this nicely-written story on our experiences and takeaways!

@daley______ Of course

@CharlieCRChen Can we talk about this in office later LOL

Everyone's excited about AI agents, but what’s really holding them back? I wrote a reflection on the Berkeley Agentic Summit about OpenAI & DeepMind's talks, and why HCI might hold the missing pieces: medium.com/p/the-real-pro… #AI #HCI #Agents #LLM

On July 18 from 1pm to 3pm, a group of us (@TobyJLi, @CharlieCRChen, @LanjingLiu @juliaqian21) will have an interactive exhibit at the National Museum of Natural History (Cellphone Exhibit) on privacy education for children/families. @JHUCompSci @ND_CSE naturalhistory.si.edu/events/privacy…

🚨New workshop at @acm_ccs #CCS2025! Glad to announce the 1st workshop on Human-Centered AI Privacy and Security (#HAIPS2025, pronounced “hypes” 😎) AI is reshaping lives and S&P research—let’s bring people back to the center. 📢 CFP is out! 🌊 haips.com

@tianshi_li @seazon96 @EryueYolanda @gloriakaku So cute! Kawaii!

@CharlieCRChen @seazon96 @EryueYolanda @gloriakaku made this cute poster for our paper and I just had to share it!

I’m at #CHI2025 this week! Always happy to chat about research💬 One topic I think a lot is human oversight and control for privacy in LLM-powered systems — a recurring theme in the work PEACH members will share at this CHI @zhipinghci @gloriakaku @seazon96 @EryueYolanda (1/n)

@CharlieCRChen Today @seazon96 and @EryueYolanda will present our #CHI2025 paper on giving users convenient and utility-preserving #privacy control for #LLMs It’s their first CHI paper and talk. Come say hi 👋 ⏱️📍Tuesday 11:10am “Delving into LLMs” G303 programs.sigchi.org/chi/2025/progr… (3/n)

And lastly — if you’re attending CHI and working on: • Usable privacy • LLMs • Human-AI collaboration …or if you’re just curious — come say hi! I’d love to meet new people and hear what you're working on 🤝 #CHI2025

🧘 Step 7: Relax and enjoy the ride. You’ll miss some talks. You’ll skip some parties. That’s okay. Every good conversation is a win. Every new connection is a seed. Don’t let FOMO ruin the experience. CHI is in Yokohama — go out, see the city, eat good food, take it all in 🌸

✨ Heading to #CHI2025? Here’s my personal guide on making the most out of a big conference like CHI — beyond just listening to talks. A thread for first-timers, and maybe a refresher for seasoned attendees too 🧵👇 (Also: if you're into usable privacy or LLMs, let’s connect!)