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Some robots can interact with humans using natural language, and identify service requests through human-robot dialog. However, few robots are able to improve their language capabilities from this experience. In this paper, we develop a…

Robotics · Computer Science 2019-11-14 Saeid Amiri , Sujay Bajracharya , Cihangir Goktolga , Jesse Thomason , Shiqi Zhang

We present MILABOT: a deep reinforcement learning chatbot developed by the Montreal Institute for Learning Algorithms (MILA) for the Amazon Alexa Prize competition. MILABOT is capable of conversing with humans on popular small talk topics…

Large-language-model (LLM) agents excel at reactive dialogue but struggle with proactive, goal-driven interactions due to myopic decoding and costly planning. We introduce DialogXpert, which leverages a frozen LLM to propose a small,…

Computation and Language · Computer Science 2025-05-26 Tazeek Bin Abdur Rakib , Ambuj Mehrish , Lay-Ki Soon , Wern Han Lim , Soujanya Poria

We investigate the task of building a domain aware chat system which generates intelligent responses in a conversation comprising of different domains. The domain, in this case, is the topic or theme of the conversation. To achieve this, we…

Computation and Language · Computer Science 2017-08-04 Sajal Choudhary , Prerna Srivastava , Lyle Ungar , João Sedoc

Dialogue benchmarks are crucial in training and evaluating chatbots engaging in domain-specific conversations. Knowledge graphs (KGs) represent semantically rich and well-organized data spanning various domains, such as DBLP, DBpedia, and…

Computation and Language · Computer Science 2025-01-20 Reham Omar , Omij Mangukiya , Essam Mansour

Existing commonsense knowledge bases often organize tuples in an isolated manner, which is deficient for commonsense conversational models to plan the next steps. To fill the gap, we curate a large-scale multi-turn human-written…

Computation and Language · Computer Science 2022-04-07 Dawei Li , Yanran Li , Jiayi Zhang , Ke Li , Chen Wei , Jianwei Cui , Bin Wang

In this paper, we present Duplex Conversation, a multi-turn, multimodal spoken dialogue system that enables telephone-based agents to interact with customers like a human. We use the concept of full-duplex in telecommunication to…

Computation and Language · Computer Science 2022-06-15 Ting-En Lin , Yuchuan Wu , Fei Huang , Luo Si , Jian Sun , Yongbin Li

This paper describes a personality-adaptive multimodal dialogue system developed for the Dialogue Robot Competition 2022. To realize a dialogue system that adapts the dialogue strategy to individual users, it is necessary to consider the…

Human-Computer Interaction · Computer Science 2022-10-19 Tamotsu Miyama , Shogo Okada

Conversational machine comprehension (MC) has proven significantly more challenging compared to traditional MC since it requires better utilization of conversation history. However, most existing approaches do not effectively capture…

Computation and Language · Computer Science 2020-07-16 Yu Chen , Lingfei Wu , Mohammed J. Zaki

Conversational information seeking has evolved rapidly in the last few years with the development of Large Language Models (LLMs), providing the basis for interpreting and responding in a naturalistic manner to user requests. The extended…

Information Retrieval · Computer Science 2024-05-07 Mohammad Aliannejadi , Zahra Abbasiantaeb , Shubham Chatterjee , Jeffery Dalton , Leif Azzopardi

Traditional methods of linking large language models (LLMs) to knowledge bases via the semantic similarity search often fall short of capturing complex relational dynamics. To address these limitations, we introduce AutoKG, a lightweight…

Computation and Language · Computer Science 2023-11-28 Bohan Chen , Andrea L. Bertozzi

We present MILABOT: a deep reinforcement learning chatbot developed by the Montreal Institute for Learning Algorithms (MILA) for the Amazon Alexa Prize competition. MILABOT is capable of conversing with humans on popular small talk topics…

A new challenge for knowledge graph reasoning started in 2018. Deep learning has promoted the application of artificial intelligence (AI) techniques to a wide variety of social problems. Accordingly, being able to explain the reason for an…

Dialogue level quality estimation is vital for optimizing data driven dialogue management. Current automated methods to estimate turn and dialogue level user satisfaction employ hand-crafted features and rely on complex annotation schemes,…

Computation and Language · Computer Science 2020-10-12 Praveen Kumar Bodigutla , Aditya Tiwari , Josep Valls Vargas , Lazaros Polymenakos , Spyros Matsoukas

Knowledge graph-based dialogue generation (KG-DG) is a challenging task requiring models to effectively incorporate external knowledge into conversational responses. While large language models (LLMs) have achieved impressive results across…

Computation and Language · Computer Science 2025-11-18 Hadi Sheikhi , Chenyang Huang , Osmar R. Zaïane

This paper describes a new spoken dialog portal that connects systems produced by the spoken dialog academic research community and gives them access to real users. We introduce a distributed, multi-modal, multi-agent prototype dialog…

Artificial Intelligence · Computer Science 2016-06-13 Tiancheng Zhao , Kyusong Lee , Maxine Eskenazi

This paper presents a novel system that enables intelligent robots to exhibit realistic body gestures while communicating with humans. The proposed system consists of a listening model and a speaking model used in corresponding…

Computer Vision and Pattern Recognition · Computer Science 2019-11-18 Minjie Hua , Fuyuan Shi , Yibing Nan , Kai Wang , Hao Chen , Shiguo Lian

Large language models (LLMs) have been widely applied in question answering over scientific research papers. To enhance the professionalism and accuracy of responses, many studies employ external knowledge augmentation. However, existing…

Computation and Language · Computer Science 2025-02-21 Jiayin Lan , Jiaqi Li , Baoxin Wang , Ming Liu , Dayong Wu , Shijin Wang , Bing Qin

The amount of research articles produced every day is overwhelming: scholarly knowledge is getting harder to communicate and easier to get lost. A possible solution is to represent the information in knowledge graphs: structures…

Digital Libraries · Computer Science 2023-08-31 Denis Obrezkov , Allard Oelen , Sören Auer

The field of eXplainable Artificial Intelligence (XAI) is increasingly recognizing the need to personalize and/or interactively adapt the explanation to better reflect users' explanation needs. While dialogue-based approaches to XAI have…

Machine Learning · Computer Science 2024-08-15 Dimitry Mindlin , Amelie Sophie Robrecht , Michael Morasch , Philipp Cimiano