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Retrieval-augmented generation (RAG) is considered to be a promising approach to alleviate the hallucination issue of large language models (LLMs), and it has received widespread attention from researchers recently. Due to the limitation in…

Information Retrieval · Computer Science 2024-06-11 Hengran Zhang , Ruqing Zhang , Jiafeng Guo , Maarten de Rijke , Yixing Fan , Xueqi Cheng

Large Language Models (LLMs) demonstrate significant persuasive capabilities in one-on-one interactions, but their influence within social networks, where interconnected users and complex opinion dynamics pose unique challenges, remains…

Machine Learning · Computer Science 2025-06-13 Erica Coppolillo , Federico Cinus , Marco Minici , Francesco Bonchi , Giuseppe Manco

Dialogue systems are increasingly using knowledge bases (KBs) storing real-world facts to help generate quality responses. However, as the KBs are inherently incomplete and remain fixed during conversation, it limits dialogue systems'…

Computation and Language · Computer Science 2019-12-24 Sahisnu Mazumder , Bing Liu , Shuai Wang , Nianzu Ma

Multimodal search-based dialogue is a challenging new task: It extends visually grounded question answering systems into multi-turn conversations with access to an external database. We address this new challenge by learning a neural…

Computation and Language · Computer Science 2018-11-22 Shubham Agarwal , Ondrej Dusek , Ioannis Konstas , Verena Rieser

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…

Information Retrieval · Computer Science 2025-09-30 Ching Han Chen , Ming Fang Shiu

Large pre-trained language models have been shown to store factual knowledge in their parameters, and achieve state-of-the-art results when fine-tuned on downstream NLP tasks. However, their ability to access and precisely manipulate…

In recent years, the generation of conversation content based on deep neural networks has attracted many researchers. However, traditional neural language models tend to generate general replies, lacking logical and emotional factors. This…

Computation and Language · Computer Science 2019-04-18 Jia Li , Xiao Sun , Xing Wei , Changliang Li , Jianhua Tao

The assessment of advanced generative large language models (LLMs) poses a significant challenge, given their heightened complexity in recent developments. Furthermore, evaluating the performance of LLM-based applications in various…

Computation and Language · Computer Science 2023-11-17 Ken E. Friedl , Abbas Goher Khan , Soumya Ranjan Sahoo , Md Rashad Al Hasan Rony , Jana Germies , Christian Süß

This work presents a novel architecture for building Retrieval-Augmented Generation (RAG) systems to improve Question Answering (QA) tasks from a target corpus. Large Language Models (LLMs) have revolutionized the analyzing and generation…

Computation and Language · Computer Science 2025-01-09 Binita Saha , Utsha Saha , Muhammad Zubair Malik

In recent years, Natural Language Processing (NLP) has played a significant role in various Artificial Intelligence (AI) applications such as chatbots, text generation, and language translation. The emergence of large language models (LLMs)…

Computation and Language · Computer Science 2024-07-10 Amanda Kau , Xuzeng He , Aishwarya Nambissan , Aland Astudillo , Hui Yin , Amir Aryani

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

This paper investigates the impact of domain-specific model fine-tuning and of reasoning mechanisms on the performance of question-answering (Q&A) systems powered by large language models (LLMs) and Retrieval-Augmented Generation (RAG).…

Artificial Intelligence · Computer Science 2024-04-23 Zooey Nguyen , Anthony Annunziata , Vinh Luong , Sang Dinh , Quynh Le , Anh Hai Ha , Chanh Le , Hong An Phan , Shruti Raghavan , Christopher Nguyen

We study knowledge-grounded dialogue generation with pre-trained language models. To leverage the redundant external knowledge under capacity constraint, we propose equipping response generation defined by a pre-trained language model with…

Computation and Language · Computer Science 2020-10-20 Xueliang Zhao , Wei Wu , Can Xu , Chongyang Tao , Dongyan Zhao , Rui Yan

The development of large language models (LLMs) has achieved superior performance in a range of downstream tasks, including LLM-based retrieval-augmented generation (RAG). The quality of generated content heavily relies on the usefulness of…

Computation and Language · Computer Science 2026-01-27 Fengran Mo , Zhan Su , Yuchen Hui , Jinghan Zhang , Jia Ao Sun , Zheyuan Liu , Chao Zhang , Tetsuya Sakai , Jian-Yun Nie

Large language models (LLMs) have shown impressive capabilities in natural language processing tasks, including dialogue generation. This research aims to conduct a novel comparative analysis of two prominent techniques, fine-tuning with…

Conversational systems should generate diverse language forms to interact fluently and accurately with users. In this context, Natural Language Generation (NLG) engines convert Meaning Representations (MRs) into sentences, directly…

Computation and Language · Computer Science 2026-04-01 Alain Vázquez , Maria Inés Torres

Knowledge models are fundamental to dialogue systems for enabling conversational interactions, which require handling domain-specific knowledge. Ensuring effective communication in information-providing conversations entails aligning user…

Computation and Language · Computer Science 2024-08-13 Phillip Schneider , Nektarios Machner , Kristiina Jokinen , Florian Matthes

Knowledge-based dialogue systems with internet retrieval have recently attracted considerable attention from researchers. The dialogue systems overcome a major limitation of traditional knowledge dialogue systems, where the timeliness of…

Information Retrieval · Computer Science 2024-01-17 Zhongtian Hu , Yangqi Chen , Meng Zhao , Ronghan Li , Lifang Wang

Traditional methods of linking large language models (LLMs) to knowledge bases via the semantic similarity search often fall short of capturing complex relational dynamics. To address these limitations, we introduce AutoKG, a lightweight…

Computation and Language · Computer Science 2023-11-28 Bohan Chen , Andrea L. Bertozzi

This paper presents an end-to-end framework for task-oriented dialog systems using a variant of Deep Recurrent Q-Networks (DRQN). The model is able to interface with a relational database and jointly learn policies for both language…

Artificial Intelligence · Computer Science 2016-09-19 Tiancheng Zhao , Maxine Eskenazi