About

Yu-Jen Lee is a master's degree student at Northeastern University in Silicon Valley, CA. He has a strong background in HCI research with a particular focus on human-centered AI, mobile media behavior, and smartphone notifications. Yu-Jen has previously worked as a research assistant in the AI4SG Lab at the National University of Singapore and is also a member of the MUILab at National Yang Ming Chiao Tung University. He holds a Master of Science degree in Multimedia Engineering from National Yang Ming Chiao Tung University and a Bachelor of Science degree from National Chung Cheng University.

Email: lee.yujen@northeastern.edu

Projects

AuthentBot

This webpage helps people generate support messages incorporating their attitudes and experiences using a large language model.

This research project aims to understand how writers perceive authenticity change in the AI-human collaborative scenario.

Social Support Chatbot

This website allows users to respond to help-seeking posts with the assistance of an AI chatbot when they are stuck on writing a response.

This research project focuses on how AI chatbots are used in the context of social support and how people collaborate with them.

Stigma Chatbot

Design the chatbot that misinterprets user responses and delivers stigmatizing thoughts.

In this research project, we designed the chatbot to reduce stigmatized thoughts towards people with depression.

Paper published on CSCW 2024 [link].

Are you killing time?

This research project built a deep learning model trained on millions of smartphone screenshots to predict "time-killing" moments on phones and identify different people's time-killing behaviors.

Paper published on CHI 2023 [link].
Poster published on UbiComp 2021 [link].

Notification Sampling

An Android research app that samples participants' notifications and sends questionnaires to them. In this project, we analyzed over 20 contextual factors that affect people's perception when interacting with notifications on smartphones.

Poster published on UbiComp 2021 [link].

Urban Climbing

An iOS and Android app for rock climbers! It shows boulder gym routes, allows users to leave comments, links beta videos to social media, and provides rankings. This app stopped running in 2021 due to a lack of time for maintenance. I am looking for people interested in relaunching and promoting it further.

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