Zhuojun Li

schoolTsinghua Universitybar_chart#1844 Global Rank

Total Papers

HCI Rank

#1844

Research Areas

Years Active

Recent Publications

HiSync: Spatio-Temporally Aligning Hand Motion from Wearable IMU and On-Robot Camera for Command Source Identification in Long-Range HRI

Long-range Human-Robot Interaction (HRI) remains underexplored. Within it, Command Source Identification (CSI) – determining who issued a command – is especially challenging due to multi-user and distance-induced sensor ambiguity. We introduce HiSync, an optical-inertial fusion framework that treats hand motion as bin…

CHI '263rd AuthorSoft Keyboard & Virtual Keyboard Design +1

KeySense: LLM-Powered Hands-Down, Ten-Finger Typing on Commodity Touchscreens

Existing touchscreen software keyboards prevent users from resting their hands, forcing slow and fatiguing index-finger tapping (“chicken typing”) instead of familiar hands-down ten-finger typing. We present KeySense, a purely software solution that preserves physical keyboard motor skills. KeySense isolates intention…

CHI '261st AuthorHand Gesture Recognition +2

3DRing: Enabling Low-Cost 3D Hand Position Tracking by Fusing Inertial and Low-Framerate Optical Sensing

Current mobile hand tracking systems primarily rely on high-framerate (HFR) optical sensors to capture hand positions, resulting in high computational cost and limiting the applicability in end devices. We propose 3DRing, a 3D hand position tracking method that requires only low-framerate (LFR, <10 FPS) optical data a…

UIST '255th+ AuthorHuman-LLM Collaboration +2

InterQuest: A Mixed-Initiative Framework for Dynamic User Interest Modeling in Conversational Search

In online information-seeking tasks (e.g., for products and restaurants), users seek information that aligns with their individual preferences to make informed decisions. However, existing systems often struggle to infer users' implicit interests—unstated yet essential preference factors that directly impact decision…

CHI '231st AuthorFoot & Wrist Interaction +1

ResType: Invisible and Adaptive Tablet Keyboard Leveraging Resting Fingers

Text entry on tablet touchscreens is a basic need nowadays. Tablet keyboards require visual attention for users to locate keys, thus not supporting efficient touch typing. They also take up a large proportion of screen space, which affects the access to information. To solve these problems, we propose ResType, an adap…

UIST '214th AuthorIn-Vehicle Haptic, Audio & Multimodal Feedback +1

TypeBoard: Identifying Unintentional Touch on Pressure-Sensitive Touchscreen Keyboards

Text input is essential in tablet computer interaction. However, tablet software keyboards face the problem of misrecognizing unintentional touch, which affects efficiency and usability. In this paper, we proposed TypeBoard, a pressure-sensitive touchscreen keyboard that prevents unintentional touches. The TypeBoard a…

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