Lei Shi

schoolCornell Universitybar_chart#1890 Global Rank

Total Papers

HCI Rank

#1890

Research Areas

Years Active

Recent Publications

AmbigChat: Interactive Hierarchical Clarification for Ambiguous Open-Domain Question Answering

When conversing with large language models, it is common that users ask an ambiguous open-domain question that could lead to multiple answers, especially when exploring new topics. For example, “Who won the US Open?” can result in different athletes according to the referred events and years. We propose AmbigChat, an…

CUI '253rd AuthorConversational Chatbots +1

WatchWithMe: LLM-Based Interactive Guided Watching of Review Videos

Videos are a popular way for viewers to follow topics of interest. In areas such as product and technology reviews, videos often present in-depth perspectives in a compact fashion, driving viewers to look for additional explanations. We propose WatchWithMe, an automatic approach that provides viewers in-context guided…

CHI '241st AuthorCustomizable & Personalized Objects

Inkeraction: An Interaction Modality Powered by Ink Recognition and Synthesis

Ink is a powerful medium for note-taking and creativity tasks. Multi-touch devices and stylus input have enabled digital ink to be editable and searchable. To extend the capabilities of digital ink, we introduce Inkeraction, an interaction modality powered by ink recognition and synthesis. Inkeraction segments and cla…

CHI '201st AuthorVisual Impairment Technologies (Screen Readers, Tactile Graphics, Braille) +1

Molder: An Accessible Design Tool for Tactile Maps

Tactile materials are powerful teaching aids for students with visual impairments (VIs). To design these materials, designers must use modeling applications, which have high learning curves and rely on visual feedback. Today, Orientation and Mobility (O&M) specialists and teachers are often responsible for designing t…

CSCW '191st AuthorAccessibility and assistive technologies

Accessible Video Calling: Enabling Nonvisual Perception of Visual Conversation Cues

Nonvisually Accessible Video Calling (NAVC) is a prototype that detects visual conversation cues in a video call and uses audio cues to convey them to a user who is blind or low-vision. NAVC uses audio cues inspired by movie soundtracks to convey Attention, Agreement, Disagreement, Happiness, Thinking, and Surprise. W…

CHI '191st AuthorVisual Impairment Technologies (Screen Readers, Tactile Graphics, Braille) +1

Designing Interactive 3D Printed Models with Teachers of the Visually Impaired

Students with visual impairments struggle to learn various concepts in the academic curriculum because diagrams, images, and other visual are not accessible to them. To address this, researchers have design interactive 3D printed models (I3Ms) that provide audio descriptions when a user touches components of a model.…

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