Keio University

schoolSchoolbar_chart#98 Global Rank

Total Papers

HCI Rank

#98

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Years Active

Recent Publications

ReflecTrace: Touchless Hover Interaction on Commodity Smartphones via Corneal Reflection

We propose an approach to detect finger hover inputs on a smartphone screen using corneal reflection images captured by the device’s built-in front camera. This method requires no external sensors or hardware, enabling hover input detection in the near-screen space that is not directly visible to the camera. By levera…

CHI '26Shape-Changing Interfaces & Soft Robotic Materials +2

Y-zipper: 3D Printing Flexible–Rigid Transition Mechanism for Rapid and Reversible Assembly

We present Y-zipper, a novel three-sided 3D-printed zipper structure that enables three flexible strips to interlock and transform into a rigid rod-like form. Building on this flex–rigid transition mechanism, we further design a specialized slider to achieve rapid and reversible zipping interactions. This slider serve…

CHI '26Desktop 3D Printing & Personal Fabrication +1

Zip-up Print: Rapid and Assemblable 3D printing Using 2D Flattened Zipper-like Structures

We propose a method to fabricate objects composed of 3D printed flattened pieces with integrated zipper-like structures. The object is manually assembled into a 3D shape by connecting the zipper components. By employing a zipper design that allows for angle-independent connections between patches, our method enables b…

CHI '26Honorable MentionBiosensors & Physiological Monitoring +2

Sensing Your Vocals: Exploring the Activity of Vocal Cord Muscles for Pitch Assessment Using Electromyography and Ultrasonography

Vocal training is difficult because the muscles that control pitch, resonance, and phonation are internal and invisible to learners. This paper investigates how Electromyography (EMG) and ultrasonic imaging (UI) can make these muscles observable for training purposes. We report three studies. First, we analyze the E…

CHI '26Honorable MentionAutomated Driving Interface & Takeover Design +3

Peeking Ahead of the Field Study: Exploring VLM Personas as Support Tools for Embodied Studies in HCI

Field studies are irreplaceable but costly, time-consuming, and error-prone, which need careful preparation. Inspired by rapid-prototyping in manufacturing, we propose a fast, low-cost evaluation method using Vision-Language Model (VLM) personas to simulate outcomes comparable to field results. While LLMs show human-l…

CHI '26Shape-Changing Interfaces & Soft Robotic Materials +2

Animacy and the Eye of the Beholder: A Mixed-Methods Study on Cognitive Animacy with a Kinetic Origami Surface

Previous research shows how animacy attribution is shaped by perceptual and cognitive processes based on morphological and behavioural characteristics. Existing evidence is largely focused on passive observation of movement on a screen or scenarios involving predefined interactions. We explore cognitive animacy percep…

CHI '26Social & Collaborative VR +2

Balancing Accuracy and Embodiment: A Hybrid Perspective for Complex Visuomotor Tasks in VR

Visual perspective is a crucial design factor in Virtual Reality (VR). Especially when complex motor tasks are involved, it can affect both objective performance and subjective experience. We compared four visual perspectives (First-Person view, translucent Ghost view, Third-Person view, and Hybrid view) in a user stu…

CHI '26Human-LLM Collaboration +2

Tell Me What I Missed: Interacting with GPT during Recalling of One-Time Witnessed Events

LLM-assisted technologies are increasingly used to support cognitive processing and information interpretation, yet their role in aiding memory recall—and how people choose to engage with them—remains underexplored. We studied participants who watched a short robbery video (approximating a one-time eyewitness scenario…

CSCW '25Communicating With/Through AI

Introspectus AI: Long-term AI-Driven Dialogue Training To Promote Self-Reflection

IntrospectusAI is a generative AI-based system designed to enhance self-reflection and support positive behavior change. By leveraging multimodal information from users' daily life recordings, it provides personalized and detailed feedback, aiming to deepen self-awareness and facilitate positive behavioral adjustments…

UIST '25Shape-Changing Materials & 4D Printing +2

SoilSense: Appropriating Soil-based Microbial Fuel Cells to Create Tangible Interfaces

Soil-based Microbial Fuel Cells (SMFCs) offer a sustainable method for powering low-energy computing devices by harnessing electricity from microbial activity in soil. In this paper, we introduce SoilSense, a novel approach that repurposes SMFCs as tangible interfaces, transforming soil into an interactive, computatio…

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At a Glance

Institution Snapshot

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Keio University

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Location

Japan · Asia

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Overall Rank

#98

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Total Papers

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Active Years

2018-2026

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50 researchers · 3 collaborators

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Top Research Directions

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Haptic, Force & Physical Feedback

Haptic Wearables

Virtual, Augmented & Mixed Reality (XR)

Social & Collaborative VR

Fabrication, 3D Printing & Physical Computing

Desktop 3D Printing & Personal Fabrication

Gesture, Body & Motion Interaction

Hand Gesture Recognition

Wearables & Sensing Technology

Biosensors & Physiological Monitoring