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This study introduces Knowledge Augmented Question Generation (KAQG), an educational assessment framework that integrates Item Response Theory, abbreviated as IRT, Bloom's Taxonomy, and knowledge graphs into a multi-agent…

信息检索 · 计算机科学 2025-09-30 Ching Han Chen , Ming Fang Shiu

We present our submission to the LiveRAG Challenge 2025, which evaluates retrieval-augmented generation (RAG) systems on dynamic test sets using the FineWeb-10BT corpus. Our final hybrid approach combines sparse (BM25) and dense (E5)…

计算与语言 · 计算机科学 2025-07-01 Chase Fensore , Kaustubh Dhole , Joyce C Ho , Eugene Agichtein

Retrieval-Augmented Generation (RAG) improves Large Language Models (LLMs) by grounding generation in external, non-parametric knowledge. However, when a task requires choosing among competing options, simply grounding generation in broadly…

计算与语言 · 计算机科学 2026-03-20 Hangeol Chang , Changsun Lee , Seungjoon Rho , Junho Yeo , Jong Chul Ye

Question answering over visually rich documents (VRDs) requires reasoning not only over isolated content but also over documents' structural organization and cross-page dependencies. However, conventional retrieval-augmented generation…

Recent advancements in large language models (LLMs) and multi-modal LLMs have been remarkable. However, these models still rely solely on their parametric knowledge, which limits their ability to generate up-to-date information and…

人工智能 · 计算机科学 2025-04-22 Zihan Ling , Zhiyao Guo , Yixuan Huang , Yi An , Shuai Xiao , Jinsong Lan , Xiaoyong Zhu , Bo Zheng

Neural document retrieval often treats a corpus as a flat cloud of vectors scored at a single granularity, leaving corpus structure underused and explanations opaque. We use Cobweb--a hierarchy-aware framework--to organize sentence…

计算与语言 · 计算机科学 2026-04-17 Anant Gupta , Karthik Singaravadivelan , Zekun Wang

Retrieval-Augmented Generation (RAG) has proven effective for knowledge synthesis, yet it encounters significant challenges in practical scenarios where data is inherently discrete and fragmented. In most environments, information is…

人工智能 · 计算机科学 2026-01-09 Zhen Chen , Weihao Xie , Peilin Chen , Shiqi Wang , Jianping Wang

This paper addresses the need for improved precision in existing knowledge-enhanced question-answering frameworks, specifically Retrieval-Augmented Generation (RAG) methods that primarily focus on enhancing recall. We propose a multi-layer…

人工智能 · 计算机科学 2025-02-24 Rubing Chen , Xulu Zhang , Jiaxin Wu , Wenqi Fan , Xiao-Yong Wei , Qing Li

Retrieval-Augmented Generation (RAG) mitigates LLM hallucinations but introduces a critical vulnerability: corpus integrity. We present SilentRetrieval, a two-stage data poisoning attack that hijacks RAG systems through adversarially…

密码学与安全 · 计算机科学 2026-05-28 Jiachen Qian

Narrative comprehension on long stories and novels has been a challenging domain attributed to their intricate plotlines and entangled, often evolving relations among characters and entities. Given the LLM's diminished reasoning over…

计算与语言 · 计算机科学 2025-11-13 Juyuan Wang , Rongchen Zhao , Wei Wei , Yufeng Wang , Mo Yu , Jie Zhou , Jin Xu , Liyan Xu

Retrieval-Augmented Generation (RAG) has revolutionized natural language processing by dynamically integrating external knowledge into Large Language Models (LLMs), addressing their limitation of static training datasets. Recent…

计算与语言 · 计算机科学 2024-09-05 Krish Goel , Mahek Chandak

Retrieval-Augmented Generation (RAG) models excel in knowledge-intensive tasks, especially under few-shot learning constraints. We introduce CoRAG, a framework extending RAG to collaborative settings, where clients jointly train a shared…

人工智能 · 计算机科学 2025-04-03 Aashiq Muhamed , Mona Diab , Virginia Smith

Retrieval-augmented generation (RAG) based large language models (LLMs) are widely used in finance for their excellent performance on knowledge-intensive tasks. However, standardized documents (e.g., SEC filing) share similar formats such…

信息检索 · 计算机科学 2025-11-07 Jaeyoung Choe , Jihoon Kim , Woohwan Jung

Current document chunking methods for Retrieval-Augmented Generation (RAG) typically linearize text. This forced linearization strips away intrinsic topological hierarchies, creating ``semantic fragmentation'' that degrades downstream…

计算与语言 · 计算机科学 2026-03-20 Xiaoyu Liu

Answering complex, real-world queries often requires synthesizing facts scattered across vast document corpora. In these settings, standard retrieval-augmented generation (RAG) pipelines suffer from incomplete evidence coverage, while…

计算与语言 · 计算机科学 2026-03-10 Yagiz Can Akay , Muhammed Yusuf Kartal , Esra Alparslan , Faruk Ortakoyluoglu , Arda Akpinar

Retrieval-Augmented Generation (RAG) enables large language models (LLMs) to access external knowledge sources, but the effectiveness of RAG relies on the coordination between the retriever and the generator. Since these components are…

计算与语言 · 计算机科学 2025-09-24 Junlin Wang , Zehao Wu , Shaowei Lu , Yanlan Li , Xinghao Huang

In this paper, we propose a Retrieval Augmented Generation (RAG) agent that maps natural language queries about research topics to precise, machine-interpretable semantic entities. Our approach combines RAG with Socratic dialogue to align a…

计算与语言 · 计算机科学 2025-02-24 Lew Lefton , Kexin Rong , Chinar Dankhara , Lila Ghemri , Firdous Kausar , A. Hannibal Hamdallahi

Retrieval-Augmented Generation (RAG) enhances large language models by incorporating external knowledge, yet suffers from critical limitations in high-stakes domains -- namely, sensitivity to noisy or contradictory evidence and opaque,…

While Retrieval-Augmented Generation (RAG) systems enhance Large Language Models (LLMs) by incorporating external knowledge, they still face persistent challenges in retrieval inefficiency and the inability of LLMs to filter out irrelevant…

计算与语言 · 计算机科学 2025-02-13 Ruobing Yao , Yifei Zhang , Shuang Song , Yuhua Liu , Neng Gao , Chenyang Tu

Retrieval-Augmented Generation (RAG) struggles on long, structured financial filings where relevant evidence is sparse and cross-referenced. This paper presents a systematic investigation of advanced metadata-driven Retrieval-Augmented…

信息检索 · 计算机科学 2025-10-29 Michail Dadopoulos , Anestis Ladas , Stratos Moschidis , Ioannis Negkakis