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While neural conversation models have shown great potentials towards generating informative and engaging responses via introducing external knowledge, learning such a model often requires knowledge-grounded dialogues that are difficult to…

Computation and Language · Computer Science 2021-05-17 Linxiao Li , Can Xu , Wei Wu , Yufan Zhao , Xueliang Zhao , Chongyang Tao

Responding with knowledge has been recognized as an important capability for an intelligent conversational agent. Yet knowledge-grounded dialogues, as training data for learning such a response generation model, are difficult to obtain.…

Computation and Language · Computer Science 2020-02-25 Xueliang Zhao , Wei Wu , Chongyang Tao , Can Xu , Dongyan Zhao , Rui Yan

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

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

Neural conversation models have shown great potentials towards generating fluent and informative responses by introducing external background knowledge. Nevertheless, it is laborious to construct such knowledge-grounded dialogues, and…

Computation and Language · Computer Science 2021-09-10 Shilei Liu , Xiaofeng Zhao , Bochao Li , Feiliang Ren , Longhui Zhang , Shujuan Yin

In open-domain conversational systems, it is important but challenging to leverage background knowledge. We can use the incorporation of knowledge to make the generation of dialogue controllable, and can generate more diverse sentences that…

Artificial Intelligence · Computer Science 2021-05-06 Cheng Luo , Dayiheng Liu , Chanjuan Li , Li Lu , Jiancheng Lv

Knowledge-grounded dialogue systems are intended to convey information that is based on evidence provided in a given source text. We discuss the challenges of training a generative neural dialogue model for such systems that is controlled…

Computation and Language · Computer Science 2021-07-16 Hannah Rashkin , David Reitter , Gaurav Singh Tomar , Dipanjan Das

Knowledge-grounded dialogue is a task of generating an informative response based on both the dialogue history and external knowledge source. In general, there are two forms of knowledge: manually annotated knowledge graphs and knowledge…

Computation and Language · Computer Science 2023-12-14 Yizhe Yang , Heyan Huang , Yihang Liu , Yang Gao

To diversify and enrich generated dialogue responses, knowledge-grounded dialogue has been investigated in recent years. The existing methods tackle the knowledge grounding challenge by retrieving the relevant sentences over a large corpus…

Computation and Language · Computer Science 2022-04-26 Yan Xu , Etsuko Ishii , Samuel Cahyawijaya , Zihan Liu , Genta Indra Winata , Andrea Madotto , Dan Su , Pascale Fung

Neural network models usually suffer from the challenge of incorporating commonsense knowledge into the open-domain dialogue systems. In this paper, we propose a novel knowledge-aware dialogue generation model (called TransDG), which…

Computation and Language · Computer Science 2019-12-17 Jian Wang , Junhao Liu , Wei Bi , Xiaojiang Liu , Kejing He , Ruifeng Xu , Min Yang

Knowledge-grounded dialogue is a task of generating an informative response based on both discourse context and external knowledge. As we focus on better modeling the knowledge selection in the multi-turn knowledge-grounded dialogue, we…

Computation and Language · Computer Science 2020-06-17 Byeongchang Kim , Jaewoo Ahn , Gunhee Kim

We explore question generation in the context of knowledge-grounded dialogs focusing on explainability and evaluation. Inspired by previous work on planning-based summarisation, we present a model which instead of directly generating a…

Computation and Language · Computer Science 2024-04-12 Juliette Faille , Quentin Brabant , Gwenole Lecorve , Lina M. Rojas-Barahona , Claire Gardent

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

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 dialogue (DGD) uses documents as external knowledge for dialogue generation. Correctly understanding the dialogue context is crucial for selecting knowledge from the document and generating proper responses. In this paper,…

Computation and Language · Computer Science 2024-10-22 Longxuan Ma , Jiapeng Li , Mingda Li , Wei-Nan Zhang , Ting Liu

The conversational search paradigm introduces a step change over the traditional search paradigm by allowing users to interact with search agents in a multi-turn and natural fashion. The conversation flows naturally and is usually centered…

Computation and Language · Computer Science 2021-04-15 Mariana Leite , Rafael Ferreira , David Semedo , João Magalhães

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

Knowledge-grounded dialogue systems are challenging to build due to the lack of training data and heterogeneous knowledge sources. Existing systems perform poorly on unseen topics due to limited topics covered in the training data. In…

Computation and Language · Computer Science 2022-08-02 Yu Li , Baolin Peng , Yelong Shen , Yi Mao , Lars Liden , Zhou Yu , Jianfeng Gao

Knowledge-based, open-domain dialogue generation aims to build chit-chat systems that talk to humans using mined support knowledge. Many types and sources of knowledge have previously been shown to be useful as support knowledge. Even in…

Computation and Language · Computer Science 2025-05-19 Xiangci Li , Linfeng Song , Lifeng Jin , Haitao Mi , Jessica Ouyang , Dong Yu

Knowledge graph question answering (KGQA) involves answering natural language questions by leveraging structured information stored in a knowledge graph. Typically, KGQA initially retrieve a targeted subgraph from a large-scale knowledge…

Computation and Language · Computer Science 2024-10-03 Yu Zhang , Kehai Chen , Xuefeng Bai , zhao kang , Quanjiang Guo , Min Zhang
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