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Constructing responses in task-oriented dialogue systems typically relies on information sources such the current dialogue state or external databases. This paper presents a novel approach to knowledge-grounded response generation that…

Computation and Language · Computer Science 2023-10-23 Nicholas Thomas Walker , Stefan Ultes , Pierre Lison

Knowledge graphs can represent information about the real-world using entities and their relations in a structured and semantically rich manner and they enable a variety of downstream applications such as question-answering, recommendation…

Computation and Language · Computer Science 2023-05-16 Hanieh Khorashadizadeh , Nandana Mihindukulasooriya , Sanju Tiwari , Jinghua Groppe , Sven Groppe

Knowledge-driven dialog system has recently made remarkable breakthroughs. Compared with general dialog systems, superior knowledge-driven dialog systems can generate more informative and knowledgeable responses with pre-provided knowledge.…

Computation and Language · Computer Science 2023-02-24 Zhongtian Hu , Lifang Wang , Yangqi Chen , Yushuang Liu , Ronghan Li , Meng Zhao , Xinyu Lu , Zejun Jiang

The use of knowledge graphs (KGs) enhances the accuracy and comprehensiveness of the responses provided by a conversational agent. While generating answers during conversations consists in generating text from these KGs, it is still…

Artificial Intelligence · Computer Science 2023-07-06 Hussam Ghanem , Massinissa Atmani , Christophe Cruz

Knowledge graphs are often used to represent structured information in a flexible and efficient manner, but their use in situated dialogue remains under-explored. This paper presents a novel conversational model for human--robot interaction…

Robotics · Computer Science 2025-04-02 Nicholas Thomas Walker , Stefan Ultes , Pierre Lison

In this paper we consider the task of conversational semantic parsing over general purpose knowledge graphs (KGs) with millions of entities, and thousands of relation-types. We focus on models which are capable of interactively mapping user…

Computation and Language · Computer Science 2023-12-08 Parag Jain , Mirella Lapata

Knowledge graph simple question answering (KGSQA), in its standard form, does not take into account that human-curated question answering training data only cover a small subset of the relations that exist in a Knowledge Graph (KG), or even…

Computation and Language · Computer Science 2020-05-26 Georgios Sidiropoulos , Nikos Voskarides , Evangelos Kanoulas

Grounding dialogue system with external knowledge is a promising way to improve the quality of responses. Most existing works adopt knowledge graphs (KGs) as the external resources, paying attention to the contribution of entities in the…

Computation and Language · Computer Science 2022-07-19 Kexin Wang , Zhixu Li , Jiaan Wang , Jianfeng Qu , Ying He , An Liu , Lei Zhao

End-to-end task-oriented dialogue systems aim to generate system responses directly from plain text inputs. There are two challenges for such systems: one is how to effectively incorporate external knowledge bases (KBs) into the learning…

Computation and Language · Computer Science 2020-10-06 Shiquan Yang , Rui Zhang , Sarah Erfani

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

Recent advances in neural sequence-to-sequence models have led to promising results for several language generation-based tasks, including dialogue response generation, summarization, and machine translation. However, these models are known…

Computation and Language · Computer Science 2019-08-29 Semih Yavuz , Abhinav Rastogi , Guan-Lin Chao , Dilek Hakkani-Tur

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

Large Language Models are now key assistants in human decision-making processes. However, a common note always seems to follow: "LLMs can make mistakes. Be careful with important info." This points to the reality that not all outputs from…

Computation and Language · Computer Science 2025-05-16 Longchao Da , Parth Mitesh Shah , Kuan-Ru Liou , Jiaxing Zhang , Hua Wei

We present a large, tunable neural conversational response generation model, DialoGPT (dialogue generative pre-trained transformer). Trained on 147M conversation-like exchanges extracted from Reddit comment chains over a period spanning…

Computation and Language · Computer Science 2020-05-05 Yizhe Zhang , Siqi Sun , Michel Galley , Yen-Chun Chen , Chris Brockett , Xiang Gao , Jianfeng Gao , Jingjing Liu , Bill Dolan

Existing dialog datasets contain a sequence of utterances and responses without any explicit background knowledge associated with them. This has resulted in the development of models which treat conversation as a sequence-to-sequence…

Computation and Language · Computer Science 2018-09-24 Nikita Moghe , Siddhartha Arora , Suman Banerjee , Mitesh M. Khapra

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

In the research of end-to-end dialogue systems, using real-world knowledge to generate natural, fluent, and human-like utterances with correct answers is crucial. However, domain-specific conversational dialogue systems may be incoherent…

Computation and Language · Computer Science 2023-04-04 Cheng Deng , Bo Tong , Luoyi Fu , Jiaxin Ding , Dexing Cao , Xinbing Wang , Chenghu Zhou

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 graph-grounded dialog generation requires retrieving a dialog-relevant subgraph from the given knowledge base graph and integrating it with the dialog history. Previous works typically represent the graph using an external…

Computation and Language · Computer Science 2024-10-15 Jinyoung Park , Minseok Joo , Joo-Kyung Kim , Hyunwoo J. Kim

Language models have achieved impressive performances on dialogue generation tasks. However, when generating responses for a conversation that requires factual knowledge, they are far from perfect, due to an absence of mechanisms to…

Computation and Language · Computer Science 2023-05-31 Minki Kang , Jin Myung Kwak , Jinheon Baek , Sung Ju Hwang