Research

  • Text Entry Throughput: Towards Unifying Speed and Accuracy in a Single Performance Metric Mingrui Zhang, Shumin Zhai, Jacob O. Wobbrock
    The ACM CHI Conference on Human Factors in Computing Systems (CHI), 2019 Related Blog Post
    We define the text entry Throughput as a performance metric combining the speed and accuracy. Throughput is derived from the transmission ratio in the information theory. Unlike other metrics, throughput is less affected by speed-accuracy tradeoffs, thus it enables cross-device, cross-publication comparison.
  • Anchored Audio Sampling: A Seamless Method for Exploring Children’s Thoughts During Deployment Studies Alexis Hiniker, Jon E. Froehlich, Mingrui Zhang, Erin Beneteau
    The ACM CHI Conference on Human Factors in Computing Systems (CHI), 2019 Best Paper Award
    We present Anchored Audio Smapling (AAS) method for collecting remote data of qualitative audio samples during field development with young children. The anchor event triggers the recording, and a sliding window surrounding this anchor captures both antecedent and ensuing recording. Our AAS Library for Android
  • Communication Breakdowns Between Families and Alexa Erin Beneteau, Olivia K. Richards, Mingrui Zhang, Julie A. Kientz, Jason Yip, Alexis Hiniker
    The ACM CHI Conference on Human Factors in Computing Systems (CHI), 2019
    We investigat different types of communication breakdowns and the repairing strategies between the conversation of family members and Alexa. Our findings indicates that improving technology’s ability to identify the communication partners and to provide specific clarification responses will ultimately improve the conversational interaction experience.
  • ATK: Enabling Ten-Finger Freehand Typing in Air Based on 3D Hand Tracking Data Xin Yi, Chun Yu, Mingrui Zhang, Sida Gao
    The ACM Symposium on User Interface Software and Technology (UIST), 2015
    A novel air-typing method, Leapmotion tracking fingers, improved Bayes prediction model with application developed

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