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Joohyung Yun

3 accepted papers

2026

Failure is Feedback: History-Aware Backtracking for Agentic Traversal in Multimodal Graphs

ICML 2026poster

Open-domain multimodal document retrieval aims to retrieve specific components (paragraphs, tables, or images) from large and interconnected document corpora. Existing graph-based retrieval approaches typically rely on a uniform similarity metric that overlooks hop-specific semantics, and their rigi…

Cited by 0SourceScholar
2025

HELIOS: Harmonizing Early Fusion, Late Fusion, and LLM Reasoning for Multi-Granular Table-Text Retrieval

ACL 2025long

Table-text retrieval aims to retrieve relevant tables and text to support open-domain question answering. Existing studies use either early or late fusion, but face limitations. Early fusion pre-aligns a table row with its associated passages, forming “stars,” which often include irrelevant contexts…

Cited by 4SourcePDFScholar
2025

LILaC: Late Interacting in Layered Component Graph for Open-domain Multimodal Multihop Retrieval

EMNLP 2025

Multimodal document retrieval aims to retrieve query-relevant components from documents composed of textual, tabular, and visual elements. An effective multimodal retriever needs to handle two main challenges: (1) mitigate the effect of irrelevant contents caused by fixed, single-granular retrieval