Wisdom · Ji · curiosity
Writings about Human-Centered Technology
My name explains who I am: JI (지, wisdom) comes from curiosity,
and YAE (예, art) comes from intention.
Responsible AI
Your AI Agent Has No Manager
AI agent identity in consumer products
Reflection
Dear AI. Whatever you dream shall come true.
My end-to-end building journey with multi-modal AI apps, with image detection and subjective decisions
Responsible AI
Tokenmaxxing: When AI Becomes the Goal, Not the Tool
Tokenmaxxing is an emerging term being used in engineering community to describe the practice of maximizing AI token consumption as a measure of product…
Product Thinking
Figma, Spotify, Expedia… All Inside ChatGPT? ChatGPT is becoming the New Internet.
With new features and platforms launching almost every week, it’s getting harder to keep up.
Responsible AI
Beyond Loneliness: What We Gain — and Risk — With AI Companions
In the last few months, I’ve been following lots of webinars and articles about AI companions — not assistants like ChatGPT, Claude, or Gemini, but syst…
Responsible AI
“Safety by Design: We Must Design AI Experiences that We can Trust.”
Since I committed to diving deep into artificial intelligence, I’ve been struck by how many actors — governments, nonprofits, corporations, local commun…
Responsible AI
AI Can’t Never Walk like a Child.
Let’s ride a time machine and go back to when you were learning how to walk. How did your parents teach you? Without them giving you precise muscle move…
Reflection
My first year at HCDE, UW
This past academic year of 2024-2025, I began a new chapter in the U.S., full of excitement and curiosity. As I wrap up my first year in the University…
Product Thinking
The Hidden Power of Everyday Tech: Why PMs Must Think About Infrastructure
The research paper about mobile payments becoming indispensable infrastructure in China reminded me of the dramatic Kakaotalk outage in South Korea a fe…
Product Thinking
☕️ Invisible Menus and Broken Funnels: Applying Digital Product Thinking to a Physical Cafe
After a long, gloomy Seattle winter, the appearance of sunlight felt almost celebratory, signaling the long-awaited arrival of spring. Embracing the war…
Product Thinking
When and How I used Lostness metric in UX
Did you know that there is a specific metric that calculates how much users are confused or lost while using the online service (web, app)?
archive
Research papers
Bias Bounty Challenge, Humane Intelligence partnered with Valence AI and CoNA Lab in Virginia State University · 2025
Human Labeling Bias Audit Analysis of Emotion AI Algorithm
Goal: To improve accessibility for neurodivergent users in virtual meeting platforms like Zoom, and the role of emotion AI detection, by analyzing current emotion AI algorithms and proposing equitable data labeling methods.
Computing Ethics, University of Washington, Professor Katharina Reinecke · 2025
Empowering Senior Citizens in Smart Home Technology
Goal: To understand how older adults (aged 60+) experiences with Smart Home Technology affect their autonomy and sense of control and to inform ethical design guidelines for balancing between independence and assistance.
Personal archive · 2023
Future of Human-AI Interaction
Goal: To summarize the contents from the lectures of HCI and UX Design Summit Korea 2024 and to record my personal thoughts. Abstract: How HCI and the technology has evolved and my personal insights towards the era of AI.
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Works
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Case studies on biometric payments, airport identity, and responsible AI: trusted, human-centered products under real constraints.
Observatory
See what I'm building →
Monthly digests, side projects, and what didn't make the case studies.
Which of these would you actually read to the end? Tell me, and tell me what you would have written instead. jiyaechoi19@gmail.com