Authors

Sungbin Han

Publications 2

Preprint Open access

AgentHop: A Diagnostic Benchmark for Agentic Multi-Hop Scientific Question Answering

Chanhee Park, Jeongho Yoon, Sungbin Han et al. · 2026

Agentic tasks require a large language model to interact with the world, navigating information and gathering evidence across multiple steps with restricted resources. Due to this complexity, agentic task failures arise from various sources, and pinpointing these failure causes is essential to diagnose and improve agen …

Preprint Open access

Learning to Refer: Client-Resolved Generation for Privacy-Aware Language Models

Jeongho Yoon, Chanhee Park, Yongchan Chun et al. · 2026

Cloud-based large language models (LLMs) require users to disclose plaintext data to service providers, creating privacy risks in sensitive domains. Existing privacy-preserving approaches often trade utility for protection, incur substantial computational or communication overhead, remain vulnerable to reconstruction f …

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