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Large language models (LLMs) incorporated with Retrieval-Augmented Generation (RAG) have demonstrated powerful capabilities in generating counterspeech against misinformation. However, current studies rely on limited evidence and offer less…

Computation and Language · Computer Science 2025-09-16 Anirban Saha Anik , Xiaoying Song , Elliott Wang , Bryan Wang , Bengisu Yarimbas , Lingzi Hong

Recent Multi-Party Conversation (MPC) models typically rely on graph-based approaches to capture dialogue structures. However, these methods have limitations, such as information loss during the projection of utterances into structural…

Computation and Language · Computer Science 2025-02-25 Yoonjin Jang , Keunha Kim , Youngjoong Ko

Current frameworks for consensus statement generation with large language models lack the inherent structure needed to provide provable fairness guarantees when aggregating diverse free-form opinions. We model the task as a multi-objective,…

Artificial Intelligence · Computer Science 2025-10-17 Carter Blair , Kate Larson

Neural conversation models tend to generate safe, generic responses for most inputs. This is due to the limitations of likelihood-based decoding objectives in generation tasks with diverse outputs, such as conversation. To address this…

Computation and Language · Computer Science 2018-09-06 Ashutosh Baheti , Alan Ritter , Jiwei Li , Bill Dolan

This paper investigates the enhancement of reasoning capabilities in language models through token-level multi-model collaboration. Our approach selects the optimal tokens from the next token distributions provided by multiple models to…

Artificial Intelligence · Computer Science 2025-08-27 Chao Hao , Zezheng Wang , Yanhua Huang , Ruiwen Xu , Wenzhe Niu , Xin Liu , Zitong Yu

Developing an efficient retriever to retrieve knowledge from a large-scale knowledge base (KB) is critical for task-oriented dialogue systems to effectively handle localized and specialized tasks. However, widely used generative models such…

Computation and Language · Computer Science 2023-10-23 Weizhou Shen , Yingqi Gao , Canbin Huang , Fanqi Wan , Xiaojun Quan , Wei Bi

Biomedical ontology refers to a shared conceptualization for a biomedical domain of interest that has vastly improved data management and data sharing through the open data movement. The rapid growth and availability of biomedical data make…

Databases · Computer Science 2018-02-13 Feichen Shen , Yugyung Lee

With the rise of telemedicine, the task of developing Dialogue Systems for Medical Diagnosis (DSMD) has received much attention in recent years. Different from early researches that needed to rely on extra human resources and expertise to…

Computation and Language · Computer Science 2022-05-03 Wenge Liu , Yi Cheng , Hao Wang , Jianheng Tang , Yafei Liu , Ruihui Zhao , Wenjie Li , Yefeng Zheng , Xiaodan Liang

Federated Learning faces significant challenges in statistical and system heterogeneity, along with high energy consumption, necessitating efficient client selection strategies. Traditional approaches, including heuristic and learning-based…

Machine Learning · Computer Science 2025-10-01 Zhiyuan Ning , Chunlin Tian , Meng Xiao , Wei Fan , Pengyang Wang , Li Li , Pengfei Wang , Yuanchun Zhou

Generating dialogue grounded in videos requires a high level of understanding and reasoning about the visual scenes in the videos. However, existing large visual-language models are not effective due to their latent features and…

Computer Vision and Pattern Recognition · Computer Science 2023-11-23 Hongcheng Liu , Zhe Chen , Hui Li , Pingjie Wang , Yanfeng Wang , Yu Wang

The rapid adoption of large language models (LLMs) in customer service introduces new risks, as malicious actors can exploit them to conduct large-scale user impersonation through machine-generated text (MGT). Current MGT detection methods…

Computation and Language · Computer Science 2025-08-27 Angela Yifei Yuan , Haoyi Li , Soyeon Caren Han , Christopher Leckie

Recent advancements in zero-shot speech generation have enabled models to synthesize speech that mimics speaker identity and speaking style from speech prompts. However, these models' effectiveness is significantly limited in real-world…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-14 Boyu Zhu , Cheng Gong , Muyang Wu , Ruihao Jing , Fan Liu , Xiaolei Zhang , Chi Zhang , Xuelong Li

Recent years have witnessed the rapid development of Large Language Model-based Multi-Agent Systems (MAS), which excel at collaborative decision-making and complex problem-solving. Recently, researchers have further investigated Multi-Agent…

Artificial Intelligence · Computer Science 2026-01-12 Zhenghao Li , Zhi Zheng , Wei Chen , Jielun Zhao , Yong Chen , Tong Xu , Enhong Chen

Ensuring the general efficacy and goodness for human beings from medical large language models (LLM) before real-world deployment is crucial. However, a widely accepted and accessible evaluation process for medical LLM, especially in the…

Medical Question Answering~(medical QA) systems play an essential role in assisting healthcare workers in finding answers to their questions. However, it is not sufficient to merely provide answers by medical QA systems because users might…

Computation and Language · Computer Science 2023-10-03 Wei Sun , Mingxiao Li , Damien Sileo , Jesse Davis , Marie-Francine Moens

Open-domain human-computer conversation has attracted much attention in the field of NLP. Contrary to rule- or template-based domain-specific dialog systems, open-domain conversation usually requires data-driven approaches, which can be…

Computation and Language · Computer Science 2016-10-25 Yiping Song , Rui Yan , Xiang Li , Dongyan Zhao , Ming Zhang

Knowledge graph-based dialogue systems are capable of generating more informative responses and can implement sophisticated reasoning mechanisms. However, these models do not take into account the sparseness and incompleteness of knowledge…

Computation and Language · Computer Science 2020-04-21 Hongcai Xu , Junpeng Bao , Gaojie Zhang

The goal-oriented document-grounded dialogue aims at responding to the user query based on the dialogue context and supporting document. Existing studies tackle this problem by decomposing it into two sub-tasks: knowledge identification and…

Computation and Language · Computer Science 2022-04-19 Chang Gao , Wenxuan Zhang , Wai Lam

We introduce a novel graph-based Retrieval-Augmented Generation (RAG) framework specifically designed for the medical domain, called \textbf{MedGraphRAG}, aimed at enhancing Large Language Model (LLM) capabilities for generating…

Computer Vision and Pattern Recognition · Computer Science 2024-10-17 Junde Wu , Jiayuan Zhu , Yunli Qi , Jingkun Chen , Min Xu , Filippo Menolascina , Vicente Grau

Large language models (LLMs) excel in question-answering (QA) tasks, and retrieval-augmented generation (RAG) enhances their precision by incorporating external evidence from diverse sources like web pages, databases, and knowledge graphs.…

Information Retrieval · Computer Science 2025-04-10 Yikuan Xia , Jiazun Chen , Yirui Zhan , Suifeng Zhao , Weipeng Jiang , Chaorui Zhang , Wei Han , Bo Bai , Jun Gao