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In the realm of dialogue systems, user simulation techniques have emerged as a game-changer, redefining the evaluation and enhancement of task-oriented dialogue (TOD) systems. These methods are crucial for replicating real user…

Large language models (LLMs) provide a new way to build chatbots by accepting natural language prompts. Yet, it is unclear how to design prompts to power chatbots to carry on naturalistic conversations while pursuing a given goal, such as…

Human-Computer Interaction · Computer Science 2024-05-08 Jing Wei , Sungdong Kim , Hyunhoon Jung , Young-Ho Kim

Task-oriented dialogue systems have made unprecedented progress with multiple state-of-the-art (SOTA) models underpinned by a number of publicly available MultiWOZ datasets. Dialogue state annotations are error-prone, leading to sub-optimal…

Computation and Language · Computer Science 2021-06-15 Ting Han , Ximing Liu , Ryuichi Takanobu , Yixin Lian , Chongxuan Huang , Dazhen Wan , Wei Peng , Minlie Huang

In this report, we describe the vision, challenges, and scientific contributions of the Task Wizard team, TWIZ, in the Alexa Prize TaskBot Challenge 2022. Our vision, is to build TWIZ bot as an helpful, multimodal, knowledgeable, and…

Computation and Language · Computer Science 2024-01-23 Rafael Ferreira , Diogo Tavares , Diogo Silva , Rodrigo Valério , João Bordalo , Inês Simões , Vasco Ramos , David Semedo , João Magalhães

Task-oriented dialogue (TOD) systems have been widely used by mobile phone intelligent assistants to accomplish tasks such as calendar scheduling or hotel reservation. Current TOD systems usually focus on multi-turn text/speech interaction,…

Computation and Language · Computer Science 2024-03-04 Liangtai Sun , Xingyu Chen , Lu Chen , Tianle Dai , Zichen Zhu , Kai Yu

People capture photos and videos to relive and share memories of personal significance. Recently, media montages (stories) have become a popular mode of sharing these memories due to their intuitive and powerful storytelling capabilities.…

Computation and Language · Computer Science 2022-11-09 Satwik Kottur , Seungwhan Moon , Aram H. Markosyan , Hardik Shah , Babak Damavandi , Alborz Geramifard

Emotion recognition in conversations (ERC) is a crucial task for building human-like conversational agents. While substantial efforts have been devoted to ERC for chit-chat dialogues, the task-oriented counterpart is largely left…

Most prior work on task-oriented dialogue systems are restricted to a limited coverage of domain APIs, while users oftentimes have domain related requests that are not covered by the APIs. In this paper, we propose to expand coverage of…

Computation and Language · Computer Science 2020-06-08 Seokhwan Kim , Mihail Eric , Karthik Gopalakrishnan , Behnam Hedayatnia , Yang Liu , Dilek Hakkani-Tur

We propose Machines Talking To Machines (M2M), a framework combining automation and crowdsourcing to rapidly bootstrap end-to-end dialogue agents for goal-oriented dialogues in arbitrary domains. M2M scales to new tasks with just a task…

Artificial Intelligence · Computer Science 2018-01-16 Pararth Shah , Dilek Hakkani-Tür , Gokhan Tür , Abhinav Rastogi , Ankur Bapna , Neha Nayak , Larry Heck

Large Language Model (LLM)-based agents have significantly impacted Task-Oriented Dialog Systems (TODS) but continue to face notable performance challenges, especially in zero-shot scenarios. While prior work has noted this performance gap,…

Computation and Language · Computer Science 2025-06-17 Avinash Baidya , Kamalika Das , Xiang Gao

Embodied agents need to be able to interact in natural language understanding task descriptions and asking appropriate follow up questions to obtain necessary information to be effective at successfully accomplishing tasks for a wide range…

Computation and Language · Computer Science 2022-09-28 Spandana Gella , Aishwarya Padmakumar , Patrick Lange , Dilek Hakkani-Tur

Dialogue systems (DS), including the task-oriented dialogue system (TOD) and the open-domain dialogue system (ODD), have always been a fundamental task in natural language processing (NLP), allowing various applications in practice. Owing…

Computation and Language · Computer Science 2025-07-22 Hongru Wang , Lingzhi Wang , Yiming Du , Liang Chen , Jingyan Zhou , Yufei Wang , Kam-Fai Wong

Large language models (LLMs) have demonstrated remarkable performance on single-turn text-to-SQL tasks, but real-world database applications predominantly require multi-turn interactions to handle ambiguous queries, execution errors, and…

Task-oriented Dialogue (TOD) Systems aim to build dialogue systems that assist users in accomplishing specific goals, such as booking a hotel or a restaurant. Traditional TODs rely on domain-specific APIs/DBs or external factual knowledge…

Integrating large language models (LLMs) like ChatGPT into computer science education offers transformative potential for complex courses such as data structures and algorithms (DSA). This study examines ChatGPT as a supplementary tool for…

Human-Computer Interaction · Computer Science 2025-03-04 Pooriya Jamie , Reyhaneh Hajihashemi , Sharareh Alipour

Conversational question-answering (CQA) systems aim to create interactive search systems that effectively retrieve information by interacting with users. To replicate human-to-human conversations, existing work uses human annotators to play…

Computation and Language · Computer Science 2023-12-06 Zahra Abbasiantaeb , Yifei Yuan , Evangelos Kanoulas , Mohammad Aliannejadi

User interactions with LLMs are shaped by prior experiences and individual exploration, but in-lab studies do not provide system designers with visibility into these in-the-wild factors. This work explores a new approach to studying…

Human-Computer Interaction · Computer Science 2026-05-08 Shengqi Zhu , Jeffrey M. Rzeszotarski , David Mimno

Conversational systems must be robust to user interactions that naturally exhibit diverse conversational traits. Capturing and simulating these diverse traits coherently and efficiently presents a complex challenge. This paper introduces…

Computation and Language · Computer Science 2024-10-29 Rafael Ferreira , David Semedo , João Magalhães

Task-oriented dialogue systems are broadly used in virtual assistants and other automated services, providing interfaces between users and machines to facilitate specific tasks. Nowadays, task-oriented dialogue systems have greatly…

Computation and Language · Computer Science 2024-05-17 Ruolin Su , Biing-Hwang Juang

In recent years, large language models (LLMs) have achieved remarkable advancements in multimodal processing, including end-to-end speech-based language models that enable natural interactions and perform specific tasks in task-oriented…

Computation and Language · Computer Science 2025-08-15 Enzhi Wang , Qicheng Li , Shiwan Zhao , Aobo Kong , Jiaming Zhou , Xi Yang , Yequan Wang , Yonghua Lin , Yong Qin