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Related papers: A Knowledge-Grounded Multimodal Search-Based Conve…

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We propose Knowledge Boundary Discovery (KBD), a reinforcement learning based framework to explore the knowledge boundaries of the Large Language Models (LLMs). We define the knowledge boundary by automatically generating two types of…

Artificial Intelligence · Computer Science 2026-03-24 Ziquan Wang , Zhongqi Lu

While Large Multimodal Models (LMMs) demonstrate impressive visual perception, they remain epistemically constrained by their static parametric knowledge. To transcend these boundaries, multimodal search models have been adopted to actively…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Yikun Liu , Yuan Liu , Le Tian , Xiao Zhou , Jiangchao Yao , Yanfeng Wang , Weidi Xie

Although neural conversation models are effective in learning how to produce fluent responses, their primary challenge lies in knowing what to say to make the conversation contentful and non-vacuous. We present a new end-to-end approach to…

Computation and Language · Computer Science 2019-06-10 Lianhui Qin , Michel Galley , Chris Brockett , Xiaodong Liu , Xiang Gao , Bill Dolan , Yejin Choi , Jianfeng Gao

Most existing neural network based task-oriented dialogue systems follow encoder-decoder paradigm, where the decoder purely depends on the source texts to generate a sequence of words, usually suffering from instability and poor…

Computation and Language · Computer Science 2021-06-11 Dingmin Wang , Ziyao Chen , Wanwei He , Li Zhong , Yunzhe Tao , Min Yang

Neural network models are capable of generating extremely natural sounding conversational interactions. Nevertheless, these models have yet to demonstrate that they can incorporate content in the form of factual information or…

Computation and Language · Computer Science 2018-11-19 Marjan Ghazvininejad , Chris Brockett , Ming-Wei Chang , Bill Dolan , Jianfeng Gao , Wen-tau Yih , Michel Galley

End-to-End task-oriented dialogue systems generate responses based on dialog history and an accompanying knowledge base (KB). Inferring those KB entities that are most relevant for an utterance is crucial for response generation. Existing…

Computation and Language · Computer Science 2021-09-16 Dinesh Raghu , Atishya Jain , Mausam , Sachindra Joshi

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-aided dialogue response generation aims at augmenting chatbots with relevant external knowledge in the hope of generating more informative responses. The majority of previous work assumes that the relevant knowledge is given as…

Computation and Language · Computer Science 2023-02-21 Ante Wang , Linfeng Song , Qi Liu , Haitao Mi , Longyue Wang , Zhaopeng Tu , Jinsong Su , Dong Yu

In this paper, we propose a novel end-to-end framework called KBRD, which stands for Knowledge-Based Recommender Dialog System. It integrates the recommender system and the dialog generation system. The dialog system can enhance the…

Computation and Language · Computer Science 2019-09-04 Qibin Chen , Junyang Lin , Yichang Zhang , Ming Ding , Yukuo Cen , Hongxia Yang , Jie Tang

In this position paper, we propose a new approach to generating a type of knowledge base (KB) from text, based on question generation and entity linking. We argue that the proposed type of KB has many of the key advantages of a traditional…

Artificial Intelligence · Computer Science 2022-07-05 Wenhu Chen , William W. Cohen , Michiel De Jong , Nitish Gupta , Alessandro Presta , Pat Verga , John Wieting

Existing pipelined task-oriented dialogue systems usually have difficulties adapting to unseen domains, whereas end-to-end systems are plagued by large-scale knowledge bases in practice. In this paper, we introduce a novel query-driven…

Computation and Language · Computer Science 2022-10-17 Xin Tian , Yingzhan Lin , Mengfei Song , Siqi Bao , Fan Wang , Huang He , Shuqi Sun , Hua Wu

Question answering over knowledge bases (KBQA) has become a popular approach to help users extract information from knowledge bases. Although several systems exist, choosing one suitable for a particular application scenario is difficult.…

Computation and Language · Computer Science 2022-11-16 Khiem Vinh Tran , Hao Phu Phan , Khang Nguyen Duc Quach , Ngan Luu-Thuy Nguyen , Jun Jo , Thanh Tam Nguyen

End-to-end dialog systems have become very popular because they hold the promise of learning directly from human to human dialog interaction. Retrieval and Generative methods have been explored in this area with mixed results. A key element…

Computation and Language · Computer Science 2018-04-24 Jatin Ganhotra , Lazaros Polymenakos

Knowledge-based visual question answering (KB-VQA) requires vision-language models to understand images and use external knowledge, especially for rare entities and long-tail facts. Most existing retrieval-augmented generation (RAG) methods…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Zhuohong Chen , Zhenxian Wu , Yunyao Yu , Hangrui Xu , Zirui Liao , Zhifang Liu , Xiangwen Deng , Pen Jiao , Haoqian Wang

Knowledge-grounded conversation (KGC) shows excellent potential to deliver an engaging and informative response. However, existing approaches emphasize selecting one golden knowledge given a particular dialogue context, overlooking the…

Computation and Language · Computer Science 2022-10-25 Xueliang Zhao , Tingchen Fu , Chongyang Tao , Rui Yan

Knowledge-based Vision Question Answering (KB-VQA) extends general Vision Question Answering (VQA) by not only requiring the understanding of visual and textual inputs but also extensive range of knowledge, enabling significant advancements…

Computer Vision and Pattern Recognition · Computer Science 2025-04-25 Jiaqi Deng , Zonghan Wu , Huan Huo , Guandong Xu

Retrieval-augmented Large Language Models (LLMs) have reshaped traditional query-answering systems, offering unparalleled user experiences. However, existing retrieval techniques often struggle to handle multi-modal query contexts. In this…

Databases · Computer Science 2024-07-08 Mengzhao Wang , Haotian Wu , Xiangyu Ke , Yunjun Gao , Xiaoliang Xu , Lu Chen

Large Language Models (LLMs) have achieved impressive results in knowledge-based Visual Question Answering (VQA). However existing methods still have challenges: the inability to use external tools autonomously, and the inability to work in…

Computation and Language · Computer Science 2025-08-08 Zhongjian Hu , Peng Yang , Bing Li , Zhenqi Wang

Recent end-to-end task oriented dialog systems use memory architectures to incorporate external knowledge in their dialogs. Current work makes simplifying assumptions about the structure of the knowledge base, such as the use of triples to…

Computation and Language · Computer Science 2020-09-30 Revanth Reddy , Danish Contractor , Dinesh Raghu , Sachindra Joshi

Conversational assistants are increasingly popular across diverse real-world applications, highlighting the need for advanced multimodal speech modeling. Speech, as a natural mode of communication, encodes rich user-specific characteristics…

Computation and Language · Computer Science 2024-12-23 Maximillian Chen , Ruoxi Sun , Sercan Ö. Arık