I’m Kunhee Ryu,
a researcher at Yonsei University.

My research focuses on language model evaluation, scientific exploration, and decision-making in agent systems.

Explore my research
REPRESENTATIONREASONINGACTION
Relations become possibilities
Representation → Reasoning → ActionFollow the questions
The thread through my work

What must an AI understand
to make its next move?

From scientific evidence
to decisions that unfold over time.
How the research connects
01

From a figure to usable evidence

Source measurementsGrounded evidenceSource ASource BSource CStudy agent AStudy agent BStudy agent CChecked evidenceCross-checkCurrent stateGoalNo completionA path remainsCurrent stateGoalPredicted alternativesAnticipate the next editOther possibilitiesPredicted future · research direction

Extract the information and keep a link to where it came from.

Chart extraction · Biomedical retrieval

Conceptual illustrations of the research questions.

01 / Grounding

Start with the evidence.

My early work asked how to recover information from scientific charts and connect biomedical answers to their sources. It led to a question that still guides me: what information does a system need to make a sound judgment?

Finding structure in information
01

From a figure to usable evidence

Evidence recordEntity → observed valueSource referenceFigure / document / pageExtractScientific sourceTraceable information

Extract the information and keep a link to where it came from.

Chart extraction · Biomedical retrieval
02 / Interaction

Let evidence meet judgment.

Evidence has to be checked and interpreted. Through multi-agent meta-analysis and studies of clinician trust, I began examining how agents and people combine, question, and use what they know.

From evidence to shared conclusions
02

Make the evidence inspectable

ABCCritiqueSources stay attachedStudiesStudy agentsReviewable evidence

Agents cross-check sources. People need evidence they can inspect and interpret.

AutoMETA · Clinician trust
03 / Action

Follow the consequences.

Scientific exploration also involves acting: editing a composition or a sequence and observing what changes. My work asks whether those edits preserve a path to the goal—and whether our evaluation can see where that path is lost.

Explore patterns, edits, and possibilities
03

A valid edit can close a path

s₁s₂ArtifactGoalNo completionValid editAlso validHas the goal become unreachable?

Both edits are allowed. Only one leaves a way to complete the task.

Evaluating LLM Agents Beyond Local Edit Validity
04 / Looking ahead

Learn to anticipate.

I now want to connect these questions through representation learning and world models: learning relationships that transfer, anticipating the effects of actions, and knowing when more information is needed.

Research directions
04

Predict the consequence before acting

s₁s₂ArtifactGoalNo completionPossible editPossible editPredicted futureAction to test

Can a learned model anticipate which edit would preserve a route to the goal?

Research direction · Representation learning & planning
Questions, made concrete

Selected research.

All research
Findings of EMNLP 2026Accepted

A valid step. A reachable goal?

From changing a letter to editing a composition or protein sequence: I study whether a valid local change keeps a successful outcome within reach.

Agents & planning
A little context

I work at the Human Artificial Intelligence Research Lab ↗ at Yonsei University, with Professor Keeheon Lee. My research brings together machine learning, agent systems, and the people who use them.

More about me