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Retrieval-augmented generation (RAG) improves large language models (LLMs) by using external knowledge to guide response generation, reducing hallucinations. However, RAG, particularly multi-modal RAG, can introduce new hallucination…

Machine Learning · Computer Science 2025-01-08 Matin Mortaheb , Mohammad A. Amir Khojastepour , Srimat T. Chakradhar , Sennur Ulukus

As connected and automated transportation systems evolve, there is a growing need for federal and state authorities to revise existing laws and develop new statutes to address emerging cybersecurity and data privacy challenges. This study…

Retrieval-augmented generation (RAG) has revitalized Large Language Models (LLMs) by injecting non-parametric factual knowledge. Compared with long-context LLMs, RAG is considered an effective summarization tool in a more concise and…

Computation and Language · Computer Science 2025-05-30 Haozhen Zhang , Tao Feng , Jiaxuan You

Neural knowledge-grounded generative models for dialogue often produce content that is factually inconsistent with the knowledge they rely on, making them unreliable and limiting their applicability. Inspired by recent work on evaluating…

Computation and Language · Computer Science 2021-09-10 Or Honovich , Leshem Choshen , Roee Aharoni , Ella Neeman , Idan Szpektor , Omri Abend

LLMs are frequently used tools for conversational generation. Without additional information LLMs can generate lower quality responses due to lacking relevant content and hallucinations, as well as the perception of poor emotional…

Computation and Language · Computer Science 2024-10-22 Alex Clay , Ernesto Jiménez-Ruiz

Recent advancements in large language models (LLMs) have shown impressive versatility across various tasks. To eliminate their hallucinations, retrieval-augmented generation (RAG) has emerged as a powerful approach, leveraging external…

Computation and Language · Computer Science 2025-05-30 Yuzheng Cai , Zhenyue Guo , Yiwen Pei , Wanrui Bian , Weiguo Zheng

Narrative data spans all disciplines and provides a coherent model of the world to the reader or viewer. Recent advancement in machine learning and Large Language Models (LLMs) have enable great strides in analyzing natural language.…

Naive Retrieval-Augmented Generation (RAG) focuses on individual documents during retrieval and, as a result, falls short in handling networked documents which are very popular in many applications such as citation graphs, social media, and…

Machine Learning · Computer Science 2025-07-15 Yuntong Hu , Zhihan Lei , Zheng Zhang , Bo Pan , Chen Ling , Liang Zhao

In this paper, we investigate the use of large language models (LLMs) like ChatGPT for document-grounded response generation in the context of information-seeking dialogues. For evaluation, we use the MultiDoc2Dial corpus of task-oriented…

Computation and Language · Computer Science 2023-09-22 Norbert Braunschweiler , Rama Doddipatla , Simon Keizer , Svetlana Stoyanchev

Large language models (LLMs) typically improve performance by either retrieving semantically similar information, or enhancing reasoning abilities through structured prompts like chain-of-thought. While both strategies are considered…

Computation and Language · Computer Science 2024-10-16 Yejin Kim , Eojin Kang , Juae Kim , H. Howie Huang

The generation of questions and answers (QA) from knowledge graphs (KG) plays a crucial role in the development and testing of educational platforms, dissemination tools, and large language models (LLM). However, existing approaches often…

Computation and Language · Computer Science 2025-11-17 Sania Nayab , Marco Simoni , Giulio Rossolini , Andrea Saracino

The vast amount of biomedical information available today presents a significant challenge for investigators seeking to digest, process, and understand these findings effectively. Large Language Models (LLMs) have emerged as powerful tools…

Computation and Language · Computer Science 2024-07-19 Alexander R. Pelletier , Joseph Ramirez , Irsyad Adam , Simha Sankar , Yu Yan , Ding Wang , Dylan Steinecke , Wei Wang , Peipei Ping

Logical rules are essential for uncovering the logical connections between relations, which could improve reasoning performance and provide interpretable results on knowledge graphs (KGs). Although there have been many efforts to mine…

Artificial Intelligence · Computer Science 2024-01-23 Linhao Luo , Jiaxin Ju , Bo Xiong , Yuan-Fang Li , Gholamreza Haffari , Shirui Pan

Current large language models (LLMs) excel at general NLP tasks but often lack domain specific precision in professional settings. Building a high quality domain specific multi turn dialogue dataset is essential for developing specialized…

Artificial Intelligence · Computer Science 2025-08-05 Yuanyuan Liang , Xiaoman Wang , Tingyu Xie , Lei Pan

Large Language Models (LLMs) enhanced with retrieval, an approach known as Retrieval-Augmented Generation (RAG), have achieved strong performance in open-domain question answering. However, RAG remains prone to hallucinations: factually…

Large Language Models (LLMs) are pre-trained on large-scale corpora and excel in numerous general natural language processing (NLP) tasks, such as question answering (QA). Despite their advanced language capabilities, when it comes to…

In recent years, large language models (LLMs) have demonstrated significant success in performing varied natural language tasks such as language translation, question-answering, summarizing, fact-checking, etc. Despite LLMs' impressive…

Computation and Language · Computer Science 2025-03-03 Bishwamittra Ghosh , Sarah Hasan , Naheed Anjum Arafat , Arijit Khan

We introduce an explainability method for biomedical hypothesis generation systems, built on top of the novel Hypothesis Generation Context Retriever framework. Our approach combines semantic graph-based retrieval and relevant…

Information Retrieval · Computer Science 2025-11-11 Ilya Tyagin , Saeideh Valipour , Aliaksandra Sikirzhytskaya , Michael Shtutman , Ilya Safro

Large Language Models (LLMs) have achieved significant success in open-domain question answering. However, they continue to face challenges such as hallucinations and knowledge cutoffs. These issues can be mitigated through in-context…

Computation and Language · Computer Science 2025-02-19 Zukang Yang , Zixuan Zhu , Xuan Zhu

Retrieval-Augmented Generation (RAG) mitigates hallucination in Large Language Models (LLMs) by incorporating external data, with Knowledge Graphs (KGs) offering crucial information for question answering. Traditional Knowledge Graph…

Computation and Language · Computer Science 2025-09-08 Yushi Sun , Kai Sun , Yifan Ethan Xu , Xiao Yang , Xin Luna Dong , Nan Tang , Lei Chen