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Dialogue generation has been successfully learned from scratch by neural networks, but tends to produce the same general response, e.g., "what are you talking about?", in many conversations. To reduce this homogeneity, external knowledge…

Computation and Language · Computer Science 2021-04-07 Yi-Lin Tuan , Wei Wei , William Yang Wang

This paper describes our submission for the End-to-end Multi-domain Task Completion Dialog shared task at the 9th Dialog System Technology Challenge (DSTC-9). Participants in the shared task build an end-to-end task completion dialog system…

Computation and Language · Computer Science 2021-02-10 Boliang Zhang , Ying Lyu , Ning Ding , Tianhao Shen , Zhaoyang Jia , Kun Han , Kevin Knight

Extending pre-trained text Large Language Models (LLMs)'s speech understanding or generation abilities by introducing various effective speech tokens has attracted great attention in the speech community. However, building a unified speech…

Sound · Computer Science 2025-11-18 Yuanyuan Wang , Dongchao Yang , Yiwen Shao , Hangting Chen , Jiankun Zhao , Zhiyong Wu , Helen Meng , Xixin Wu

Task-oriented conversational modeling with unstructured knowledge access, as track 1 of the 9th Dialogue System Technology Challenges (DSTC 9), requests to build a system to generate response given dialogue history and knowledge access.…

Computation and Language · Computer Science 2020-12-23 Chao-Hong Tan , Xiaoyu Yang , Zi'ou Zheng , Tianda Li , Yufei Feng , Jia-Chen Gu , Quan Liu , Dan Liu , Zhen-Hua Ling , Xiaodan Zhu

The goal of text generation is to make machines express in human language. It is one of the most important yet challenging tasks in natural language processing (NLP). Since 2014, various neural encoder-decoder models pioneered by Seq2Seq…

Computation and Language · Computer Science 2022-01-25 Wenhao Yu , Chenguang Zhu , Zaitang Li , Zhiting Hu , Qingyun Wang , Heng Ji , Meng Jiang

Building robust and general dialogue models for spoken conversations is challenging due to the gap in distributions of spoken and written data. This paper presents our approach to build generalized models for the Knowledge-grounded…

Computation and Language · Computer Science 2022-03-09 Ruijie Yan , Shuang Peng , Haitao Mi , Liang Jiang , Shihui Yang , Yuchi Zhang , Jiajun Li , Liangrui Peng , Yongliang Wang , Zujie Wen

The knowledge-grounded dialogue task aims to generate responses that convey information from given knowledge documents. However, it is a challenge for the current sequence-based model to acquire knowledge from complex documents and…

Computation and Language · Computer Science 2024-05-17 Yizhe Yang , Heyan Huang , Yang Gao , Jiawei Li and

Document Grounded Conversations is a task to generate dialogue responses when chatting about the content of a given document. Obviously, document knowledge plays a critical role in Document Grounded Conversations, while existing dialogue…

Computation and Language · Computer Science 2019-08-02 Zekang Li , Cheng Niu , Fandong Meng , Yang Feng , Qian Li , Jie Zhou

In recent times, Vision-Language Models (VLMs) have been trained under two predominant paradigms. Generative training has enabled Multimodal Large Language Models (MLLMs) to tackle various complex tasks, yet issues such as hallucinations…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Wei Chow , Juncheng Li , Qifan Yu , Kaihang Pan , Hao Fei , Zhiqi Ge , Shuai Yang , Siliang Tang , Hanwang Zhang , Qianru Sun

Existing studies in dialogue system research mostly treat task-oriented dialogue and chit-chat as separate domains. Towards building a human-like assistant that can converse naturally and seamlessly with users, it is important to build a…

Computation and Language · Computer Science 2022-05-12 Zhiyu Chen , Bing Liu , Seungwhan Moon , Chinnadhurai Sankar , Paul Crook , William Yang Wang

Semantic communication is emerging as a promising paradigm that focuses on the extraction and transmission of semantic meanings using deep learning techniques. While current research primarily addresses the reduction of semantic…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Hang Zhao , Hongru Li , Dongfang Xu , Shenghui Song , Khaled B. Letaief

This paper presents an ontology-aware pretrained language model (OPAL) for end-to-end task-oriented dialogue (TOD). Unlike chit-chat dialogue models, task-oriented dialogue models fulfill at least two task-specific modules: dialogue state…

Computation and Language · Computer Science 2022-09-13 Zhi Chen , Yuncong Liu , Lu Chen , Su Zhu , Mengyue Wu , Kai Yu

Target-guided response generation enables dialogue systems to smoothly transition a conversation from a dialogue context toward a target sentence. Such control is useful for designing dialogue systems that direct a conversation toward…

Computation and Language · Computer Science 2022-05-20 Prakhar Gupta , Harsh Jhamtani , Jeffrey P. Bigham

Collection of annotated dialogs for training task-oriented dialog systems have been one of the key bottlenecks in improving current models. While dialog response generation has been widely studied on the agent side, it is not evident if…

Computation and Language · Computer Science 2023-10-17 Dustin Axman , Avik Ray , Shubham Garg , Jing Huang

How to incorporate external knowledge into a neural dialogue model is critically important for dialogue systems to behave like real humans. To handle this problem, memory networks are usually a great choice and a promising way. However,…

Computation and Language · Computer Science 2019-09-26 Zehao Lin , Xinjing Huang , Feng Ji , Haiqing Chen , Ying Zhang

Current Knowledge-Grounded Dialogue Generation (KDG) models specialize in producing rational and factual responses. However, to establish long-term relationships with users, the KDG model needs the capability to generate responses in a…

Computation and Language · Computer Science 2022-04-13 Qingfeng Sun , Can Xu , Huang Hu , Yujing Wang , Jian Miao , Xiubo Geng , Yining Chen , Fei Xu , Daxin Jiang

Achieving seamless, human-like interaction remains a key challenge for full-duplex spoken dialogue models (SDMs). Reinforcement learning (RL) has substantially enhanced text- and vision-language models, while well-designed reward signals…

Artificial Intelligence · Computer Science 2026-04-17 Yifu Chen , Shengpeng Ji , Zhengqing Liu , Qian Chen , Wen Wang , Ziqing Wang , Yangzhuo Li , Tianle Liang , Zhou Zhao

In recent years, 3D models have been utilized in many applications, such as auto-driver, 3D reconstruction, VR, and AR. However, the scarcity of 3D model data does not meet its practical demands. Thus, generating high-quality 3D models…

Computer Vision and Pattern Recognition · Computer Science 2023-05-26 Weizhi Nie , Ruidong Chen , Weijie Wang , Bruno Lepri , Nicu Sebe

End-to-end neural models for intelligent dialogue systems suffer from the problem of generating uninformative responses. Various methods were proposed to generate more informative responses by leveraging external knowledge. However, few…

Computation and Language · Computer Science 2019-05-22 Rongzhong Lian , Min Xie , Fan Wang , Jinhua Peng , Hua Wu

Current general-purpose large language models (LLMs) commonly exhibit knowledge hallucination and insufficient domain-specific adaptability in domain-specific tasks, limiting their effectiveness in specialized question answering scenarios.…

Information Retrieval · Computer Science 2025-09-16 Mengzheng Yang , Yanfei Ren , David Osei Opoku , Ruochang Li , Peng Ren , Chunxiao Xing