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Large language models often respond to ambiguous requests by implicitly committing to one interpretation, frustrating users and creating safety risks when that interpretation is wrong. We propose generating a single structured response that…

Computation and Language · Computer Science 2026-04-15 Irina Saparina , Mirella Lapata

A question answering (QA) system is a type of conversational AI that generates natural language answers to questions posed by human users. QA systems often form the backbone of interactive dialogue systems, and have been studied extensively…

Software Engineering · Computer Science 2021-01-12 Aakash Bansal , Zachary Eberhart , Lingfei Wu , Collin McMillan

Conversational Query Rewriting (CQR) aims to rewrite ambiguous queries to achieve more efficient conversational search. Early studies have predominantly focused on the rewriting in isolation, ignoring the feedback from query rewrite,…

Computation and Language · Computer Science 2026-04-09 Zhiyu Cao , Peifeng Li , Qiaoming Zhu

Most works on modeling the conversation history in Conversational Question Answering (CQA) report a single main result on a common CQA benchmark. While existing models show impressive results on CQA leaderboards, it remains unclear whether…

Computation and Language · Computer Science 2023-01-02 Zorik Gekhman , Nadav Oved , Orgad Keller , Idan Szpektor , Roi Reichart

In conversational search, the user's real search intent for the current turn is dependent on the previous conversation history. It is challenging to determine a good search query from the whole conversation context. To avoid the expensive…

Information Retrieval · Computer Science 2024-01-30 Fengran Mo , Kelong Mao , Yutao Zhu , Yihong Wu , Kaiyu Huang , Jian-Yun Nie

Question-answering (QA) that comes naturally to humans is a critical component in seamless human-computer interaction. It has emerged as one of the most convenient and natural methods to interact with the web and is especially desirable in…

Computation and Language · Computer Science 2022-11-15 Deepak Gupta

When a human asks questions online, or when a conversational virtual agent asks human questions, questions triggering emotions or with details might more likely to get responses or answers. we explore how to automatically rewrite natural…

Computer Vision and Pattern Recognition · Computer Science 2021-06-07 Jiayi Wei , Xilian Li , Yi Zhang , Xin Wang

Most research on question answering focuses on the pre-deployment stage; i.e., building an accurate model for deployment. In this paper, we ask the question: Can we improve QA systems further \emph{post-}deployment based on user…

Computation and Language · Computer Science 2023-03-20 Zichao Li , Prakhar Sharma , Xing Han Lu , Jackie C. K. Cheung , Siva Reddy

As one promising way to inquire about any particular information through a dialog with the bot, question answering dialog systems have gained increasing research interests recently. Designing interactive QA systems has always been a…

Computation and Language · Computer Science 2021-04-26 Munazza Zaib , Dai Hoang Tran , Subhash Sagar , Adnan Mahmood , Wei E. Zhang , Quan Z. Sheng

Complex question answering (CQA) over raw text is a challenging task. A prominent approach to this task is based on the programmer-interpreter framework, where the programmer maps the question into a sequence of reasoning actions which is…

Computation and Language · Computer Science 2020-10-20 Xiao-Yu Guo , Yuan-Fang Li , Gholamreza Haffari

Conversational passage retrieval relies on question rewriting to modify the original question so that it no longer depends on the conversation history. Several methods for question rewriting have recently been proposed, but they were…

Information Retrieval · Computer Science 2021-01-20 Svitlana Vakulenko , Nikos Voskarides , Zhucheng Tu , Shayne Longpre

Persuasion dialogue systems reflect the machine's ability to make strategic moves beyond verbal communication, and therefore differentiate themselves from task-oriented or open-domain dialogue systems and have their own unique values.…

Computation and Language · Computer Science 2022-10-25 Weiyan Shi , Yu Li , Saurav Sahay , Zhou Yu

Retrieval-Augmented Generation (RAG) aims to generate more reliable and accurate responses, by augmenting large language models (LLMs) with the external vast and dynamic knowledge. Most previous work focuses on using RAG for single-round…

Artificial Intelligence · Computer Science 2024-03-28 Linhao Ye , Zhikai Lei , Jianghao Yin , Qin Chen , Jie Zhou , Liang He

Question answering (QA) has become an important application in the advanced development of large language models. General pre-trained large language models for question-answering are not trained to properly understand the knowledge or…

Computation and Language · Computer Science 2024-05-30 Sanat Sharma , David Seunghyun Yoon , Franck Dernoncourt , Dewang Sultania , Karishma Bagga , Mengjiao Zhang , Trung Bui , Varun Kotte

Conversational query rewriting aims to reformulate a concise conversational query to a fully specified, context-independent query that can be effectively handled by existing information retrieval systems. This paper presents a few-shot…

Information Retrieval · Computer Science 2020-06-11 Shi Yu , Jiahua Liu , Jingqin Yang , Chenyan Xiong , Paul Bennett , Jianfeng Gao , Zhiyuan Liu

Conversational Question Answering is a challenging task since it requires understanding of conversational history. In this project, we propose a new system RoBERTa + AT +KD, which involves rationale tagging multi-task, adversarial training,…

Computation and Language · Computer Science 2019-09-25 Ying Ju , Fubang Zhao , Shijie Chen , Bowen Zheng , Xuefeng Yang , Yunfeng Liu

Neural models for response generation produce responses that are semantically plausible but not necessarily factually consistent with facts describing the speaker's persona. These models are trained with fully supervised learning where the…

Computation and Language · Computer Science 2021-02-16 Mohsen Mesgar , Edwin Simpson , Iryna Gurevych

Popular QA benchmarks like SQuAD have driven progress on the task of identifying answer spans within a specific passage, with models now surpassing human performance. However, retrieving relevant answers from a huge corpus of documents is…

Computation and Language · Computer Science 2020-02-13 Amin Ahmad , Noah Constant , Yinfei Yang , Daniel Cer

Conversational information seeking (CIS) systems aim to model the user's information need within the conversational context and retrieve the relevant information. One major approach to modeling the conversational context aims to rewrite the…

Information Retrieval · Computer Science 2024-11-04 Zahra Abbasiantaeb , Simon Lupart , Mohammad Aliannejadi

Text-based Question Answering (QA) is a challenging task which aims at finding short concrete answers for users' questions. This line of research has been widely studied with information retrieval techniques and has received increasing…

Information Retrieval · Computer Science 2020-05-28 Zahra Abbasiantaeb , Saeedeh Momtazi