Litao Yan

schoolUniversity of Pennsylvaniabar_chart#3103 Global Rank

Total Papers

HCI Rank

#3103

Research Areas

Years Active

Recent Publications

The Invisible Mentor: Inferring User Actions from Screen Recordings to Recommend Better Workflows

Users of feature-rich tools like Excel often miss more efficient workflows, repeating tedious steps and making avoidable errors. Current approaches to helping them require either manual prompting, which is effortful for users, or automated logging, which is limiting for developers. We present InvisibleMentor, a system…

UIST '251st AuthorIdentity & Avatars in XR +2

Answering Developer Questions with Annotated Agent-Discovered Program Traces

Developers often find themselves asking questions that cut across a code base. Answering these questions requires gathering relevant facts and tracing flow through the program. Yet today’s tools offer limited support for answering these questions. Developers can either use imprecise AI tools that ignore flow or flow-t…

CHI '252nd AuthorGraphic Design & Typography Tools +1

FreeForm: Flexibly Augmenting Formulas with Synchronized Markup and Graphical Edits

Authors of typeset formulas augment those formulas to make them easier to understand. When they do so, they trade off between using markup tools like LaTeX and formula-unaware graphical editors. In this paper, we explore how editing tools could combine the best affordances of both kinds of tools. We develop FreeForm,…

CHI '241st AuthorGenerative AI (Text, Image, Music, Video) +2

Ivie: Lightweight Anchored Explanations of Just-Generated Code

Programming assistants have reshaped the experience of programming into one where programmers spend less time writing and more time critically examining code. In this paper, we explore how programming assistants can be extended to accelerate the inspection of generated code. We introduce an extension to the programmin…

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