collaborators

5 papers

cs.CL2026

Persona2Web: Benchmarking Personalized Web Agents for Contextual Reasoning with User History

Serin Kim, Sangam Lee, Dongha Lee

Large language models have advanced web agents, yet current agents lack personalization capabilities. Since users rarely specify every detail of their intent, practical web agents…

cs.CL2026

BESPOKE: Benchmark for Search-Augmented Large Language Model Personalization via Diagnostic Feedback

Hyunseo Kim, Sangam Lee, Kwangwook Seo +1

Search-augmented large language models (LLMs) have advanced information-seeking tasks by integrating retrieval into generation, reducing users' cognitive burden compared to traditi…

cs.IR2026

Why These Documents? Explainable Generative Retrieval with Hierarchical Category Paths

Sangam Lee, Ryang Heo, SeongKu Kang +3

Generative retrieval directly decode a document identifier (i.e., docid) in response to a query, making it impossible to provide users with explanations as an answer for ``why is t…

cs.IR2026

SAGEO Arena: A Realistic Environment for Evaluating Search-Augmented Generative Engine Optimization

Sunghwan Kim, Wooseok Jeong, Serin Kim +2

Search-Augmented Generative Engines (SAGE) have emerged as a new paradigm for information access, bridging web-scale retrieval with generative capabilities to deliver synthesized a…

cs.IR2025

Imagine All The Relevance: Scenario-Profiled Indexing with Knowledge Expansion for Dense Retrieval

Sangam Lee, Ryang Heo, SeongKu Kang +1

Existing dense retrieval models struggle with reasoning-intensive retrieval task as they fail to capture implicit relevance that requires reasoning beyond surface-level semantic in…