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Seung-Hoon Na

13 accepted papers

2026

MergePRAG: Orthogonal Merging of Passage-experts for Multi-hop Parametric RAG

ICLR 2026poster

Large language models (LLMs) can be enhanced with external knowledge through two dominant approaches: (1) **retrieval-augmented generation (RAG)**, which supplements LLMs with in-context retrieved passages, and (2) **parametric knowledge adaptation (PKA)**, which directly updates model parameters wi…

Cited by 0SourcecodeScholar
2025

GenPoE: Generative Passage-level Mixture of Experts for Knowledge Enhancement of LLMs

EMNLP 2025

Typically, parametric adaptation methods such as domain-adaptive pretraining (DAP) and retrieval-augmented generation (RAG) have been considered effective approaches for adapting large language models (LLMs) to new knowledge or domains. To unify positive effects of parametric adaptation and RAG, thi

2025

SeqMMR: Sequential Model Merging and LLM Routing for Enhanced Batched Sequential Knowledge Editing

ACL 2025finding

Model knowledge editing enables the efficient correction of erroneous information and the continuous updating of outdated knowledge within language models. While existing research has demonstrated strong performance in single-instance or few-instance sequential editing and one-time massive editing s…

Cited by 0SourcePDFScholar
2025

Wasserstein Distance Constraint and Parameter Sparsification for Batched and Iterative Knowledge Editing

AAAI 2025technical

Model knowledge editing has become a widely researched topic because it enables efficient and rapid injection of new knowledge into language models or the correction of erroneous or outdated knowledge. Existing model knowledge editing methods typically categorized into single-instance sequential edi…

2024

DistillMIKE: Editing Distillation of Massive In-Context Knowledge Editing in Large Language Models

ACL 2024findings

Among the recently emerged knowledge editing methods, in-context knowledge editing (IKE) has shown respectable abilities on knowledge editing in terms of generalization and specificity. Noting the promising advantages but unexplored issues of IKE, we propose **DistillMIKE** as a novel extension of I…

2024

RADCoT: Retrieval-Augmented Distillation to Specialization Models for Generating Chain-of-Thoughts in Query Expansion

COLING 2024main

Large language models (LLMs) have demonstrated superior performance to that of small language models (SLM) in information retrieval for various subtasks including dense retrieval, reranking, query expansion, and pseudo-document generation. However, the parameter sizes of LLMs are extremely large, ma…

2024

SARCAT: Generative Span-Act Guided Response Generation using Copy-enhanced Target Augmentation

EMNLP 2024finding

In this paper, we present a novel extension to improve the document grounded response generation, by proposing the Generative Span Act Guided Response Generation using Copy enhanced Target Augmentation (SARCAT) that consists of two major components as follows: 1) Copy-enhanced target-side input augm…

Cited by 0SourcePDFScholar
2023

DiffusionRet: Diffusion-Enhanced Generative Retriever using Constrained Decoding

EMNLP 2023long findings

Generative retrieval, which maps from a query to its relevant document identifiers (docids), has recently emerged as a new information retrieval (IR) paradigm, however, having suffered from 1) the $\textit{lack of the intermediate reasoning step}$, caused by the manner of merely using a query to pe…

Cited by 0SourceScholar
2023

ExplainMeetSum: A Dataset for Explainable Meeting Summarization Aligned with Human Intent

ACL 2023long

To enhance the explainability of meeting summarization, we construct a new dataset called “ExplainMeetSum,” an augmented version of QMSum, by newly annotating evidence sentences that faithfully “explain” a summary. Using ExplainMeetSum, we propose a novel multiple extractor guided summarization, nam…

Cited by 3SourcePDFScholar
2023

RINK: Reader-Inherited Evidence Reranker for Table-and-Text Open Domain Question Answering

AAAI 2023technical

Most approaches used in open-domain question answering on hybrid data that comprises both tabular-and-textual contents are based on a Retrieval-Reader pipeline in which the retrieval module finds relevant 
“heterogenous” evidence for a given question and the reader module generates an answer from th…

Cited by 5SourcePDFScholar
2022

Frustratingly Easy System Combination for Grammatical Error Correction

NAACL 2022long

In this paper, we formulate system combination for grammatical error correction (GEC) as a simple machine learning task: binary classification. We demonstrate that with the right problem formulation, a simple logistic regression algorithm can be highly effective for combining GEC models. Our method…

2022

LM-BFF-MS: Improving Few-Shot Fine-tuning of Language Models based on Multiple Soft Demonstration Memory

ACL 2022short

LM-BFF (CITATION) achieves significant few-shot performance by using auto-generated prompts and adding demonstrations similar to an input example. To improve the approach of LM-BFF, this paper proposes LM-BFF-MS—better few-shot fine-tuning of language models with multiple soft demonstrations by maki…

2022

SISER: Semantic-Infused Selective Graph Reasoning for Fact Verification

COLING 2022main

This study proposes Semantic-Infused SElective Graph Reasoning (SISER) for fact verification, which newly presents semantic-level graph reasoning and injects its reasoning-enhanced representation into other types of graph-based and sequence-based reasoning methods. SISER combines three reasoning typ…

Cited by 7SourcePDFScholar