activity
20242026
collaborators

6 papers

cs.CL2026

CoVeR: Coverage-Based Routing of Verifier Calls in Agentic Retrieval

Daeyoung Roh, Donghee Han

An agentic retrieval system issues a sequence of search queries and must decide, at each step, whether the evidence collected so far is enough to stop. Delegating that decision to…

cs.AI2026

HALT: Verification-Aware Stopping for Retrieval-Augmented Search Agents

Daeyoung Roh, Donghee Han

Retrieval-augmented search agents answer multi-hop questions by repeatedly issuing search queries and accumulating evidence. This creates a stopping problem: after the necessary ev…

cs.AI2026

Before Reasoning Can Fail: Pre-Evidence Procedural Failures in Agentic RAG

Daeyoung Roh, Donghee Han

Agentic retrieval-augmented generation (RAG) systems can fail before evidence-conditioned reasoning is tested: an agent may retrieve candidate snippets but finalize without inspect…

cs.CV2026

Every Error has Its Magnitude: Asymmetric Mistake Severity Training for Multiclass Multiple Instance Learning

Sungrae Hong, Jiwon Jeong, Jisu Shin +4

Multiple Instance Learning (MIL) has emerged as a promising paradigm for Whole Slide Image (WSI) diagnosis, offering effective learning with limited annotations. However, existing…

cs.LG2025

Closer through commonality: Enhancing hypergraph contrastive learning with shared groups

Daeyoung Roh, Donghee Han, Daehee Kim +2

Hypergraphs provide a superior modeling framework for representing complex multidimensional relationships in the context of real-world interactions that often occur in groups, over…

cs.CL2024

ProbGate at EHRSQL 2024: Enhancing SQL Query Generation Accuracy through Probabilistic Threshold Filtering and Error Handling

Sangryul Kim, Donghee Han, Sehyun Kim

Recently, deep learning-based language models have significantly enhanced text-to-SQL tasks, with promising applications in retrieving patient records within the medical domain. On…