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We present Contextual Query Rewrite (CQR) a dataset for multi-domain task-oriented spoken dialogue systems that is an extension of the Stanford dialog corpus (Eric et al., 2017a). While previous approaches have addressed the issue of…

Computation and Language · Computer Science 2019-04-02 Michael Regan , Pushpendre Rastogi , Arpit Gupta , Lambert Mathias

In conversational question answering, systems must correctly interpret the interconnected interactions and generate knowledgeable answers, which may require the retrieval of relevant information from a background repository. Recent…

Computation and Language · Computer Science 2022-04-15 Gonçalo Raposo , Rui Ribeiro , Bruno Martins , Luísa Coheur

In spoken conversational question answering (SCQA), the answer to the corresponding question is generated by retrieving and then analyzing a fixed spoken document, including multi-part conversations. Most SCQA systems have considered only…

Computation and Language · Computer Science 2021-06-25 Nuo Chen , Chenyu You , Yuexian Zou

Query rewriting plays a vital role in enhancing conversational search by transforming context-dependent user queries into standalone forms. Existing approaches primarily leverage human-rewritten queries as labels to train query rewriting…

Human-Computer Interaction · Computer Science 2023-10-19 Fanghua Ye , Meng Fang , Shenghui Li , Emine Yilmaz

Conversational Question Answering (ConvQA) models aim at answering a question with its relevant paragraph and previous question-answer pairs that occurred during conversation multiple times. To apply such models to a real-world scenario,…

Computation and Language · Computer Science 2023-02-13 Soyeong Jeong , Jinheon Baek , Sung Ju Hwang , Jong C. Park

Question Answering (QA) is in increasing demand as the amount of information available online and the desire for quick access to this content grows. A common approach to QA has been to fine-tune a pretrained language model on a…

Computation and Language · Computer Science 2020-04-27 Alexander R. Fabbri , Patrick Ng , Zhiguo Wang , Ramesh Nallapati , Bing Xiang

Conversational search systems require effective handling of context-dependent queries that often contain ambiguity, omission, and coreference. Conversational Query Reformulation (CQR) addresses this challenge by transforming these queries…

Computation and Language · Computer Science 2025-09-16 Changtai Zhu , Siyin Wang , Ruijun Feng , Kai Song , Xipeng Qiu

Coping with ambiguous questions has been a perennial problem in real-world dialogue systems. Although clarification by asking questions is a common form of human interaction, it is hard to define appropriate questions to elicit more…

Computation and Language · Computer Science 2020-12-18 Xiang Hu , Zujie Wen , Yafang Wang , Xiaolong Li , Gerard de Melo

Recent studies on Question Answering (QA) and Conversational QA (ConvQA) emphasize the role of retrieval: a system first retrieves evidence from a large collection and then extracts answers. This open-retrieval ConvQA setting typically…

Information Retrieval · Computer Science 2021-03-04 Chen Qu , Liu Yang , Cen Chen , W. Bruce Croft , Kalpesh Krishna , Mohit Iyyer

Conversational question answering aims to provide natural-language answers to users in information-seeking conversations. Existing conversational QA benchmarks compare models with pre-collected human-human conversations, using ground-truth…

Computation and Language · Computer Science 2022-03-23 Huihan Li , Tianyu Gao , Manan Goenka , Danqi Chen

We analyze the language learned by an agent trained with reinforcement learning as a component of the ActiveQA system [Buck et al., 2017]. In ActiveQA, question answering is framed as a reinforcement learning task in which an agent sits…

Computation and Language · Computer Science 2018-01-24 Christian Buck , Jannis Bulian , Massimiliano Ciaramita , Wojciech Gajewski , Andrea Gesmundo , Neil Houlsby , Wei Wang

We introduce a new dataset for Question Rewriting in Conversational Context (QReCC), which contains 14K conversations with 80K question-answer pairs. The task in QReCC is to find answers to conversational questions within a collection of…

Information Retrieval · Computer Science 2021-04-16 Raviteja Anantha , Svitlana Vakulenko , Zhucheng Tu , Shayne Longpre , Stephen Pulman , Srinivas Chappidi

Complex question-answering (CQA) involves answering complex natural-language questions on a knowledge base (KB). However, the conventional neural program induction (NPI) approach exhibits uneven performance when the questions have different…

Computation and Language · Computer Science 2020-11-02 Yuncheng Hua , Yuan-Fang Li , Gholamreza Haffari , Guilin Qi , Tongtong Wu

Question Answering (QA) is key for making possible a robust communication between human and machine. Modern language models used for QA have surpassed the human-performance in several essential tasks; however, these models require large…

Computation and Language · Computer Science 2021-09-08 Liubov Nikolenko , Pouya Rezazadeh Kalehbasti

Our goal is a teachable reasoning system for question-answering (QA), where a user can interact with faithful answer explanations, and correct its errors so that the system improves over time. Our approach is to augment a QA model with a…

Computation and Language · Computer Science 2022-10-25 Bhavana Dalvi Mishra , Oyvind Tafjord , Peter Clark

Question answering (QA) is an important aspect of open-domain conversational agents, garnering specific research focus in the conversational QA (ConvQA) subtask. One notable limitation of recent ConvQA efforts is the response being answer…

Computation and Language · Computer Science 2020-12-18 Ashutosh Baheti , Alan Ritter , Kevin Small

Augmenting Large Language Models (LLMs) with information retrieval capabilities (i.e., Retrieval-Augmented Generation (RAG)) has proven beneficial for knowledge-intensive tasks. However, understanding users' contextual search intent when…

Computation and Language · Computer Science 2024-09-25 Nirmal Roy , Leonardo F. R. Ribeiro , Rexhina Blloshmi , Kevin Small

We present ChatR1, a reasoning framework based on reinforcement learning (RL) for conversational question answering (CQA). Reasoning plays an important role in CQA, where user intent evolves across dialogue turns, and utterances are often…

Computation and Language · Computer Science 2026-04-28 Simon Lupart , Mohammad Aliannejadi , Evangelos Kanoulas

Models for conversational question answering (ConvQA) over knowledge graphs (KGs) are usually trained and tested on benchmarks of gold QA pairs. This implies that training is limited to surface forms seen in the respective datasets, and…

Computation and Language · Computer Science 2024-02-20 Magdalena Kaiser , Rishiraj Saha Roy , Gerhard Weikum

Question Answering (QA) has shown great success thanks to the availability of large-scale datasets and the effectiveness of neural models. Recent research works have attempted to extend these successes to the settings with few or no labeled…

Computation and Language · Computer Science 2020-05-07 Zhongli Li , Wenhui Wang , Li Dong , Furu Wei , Ke Xu