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Long-form question answering (LFQA) poses a challenge as it involves generating detailed answers in the form of paragraphs, which go beyond simple yes/no responses or short factual answers. While existing QA models excel in questions with…

计算与语言 · 计算机科学 2023-11-17 Pritom Saha Akash , Kashob Kumar Roy , Lucian Popa , Kevin Chen-Chuan Chang

Multi-hop question answering (QA) often requires sequential retrieval (multi-hop retrieval), where each hop retrieves missing knowledge based on information from previous hops. To facilitate more effective retrieval, we aim to distill…

计算与语言 · 计算机科学 2025-03-03 Zehua Xia , Yuyang Wu , Yiyun Xia , Cam-Tu Nguyen

Document Visual Question Answering (DocVQA) refers to the task of answering questions from document images. Existing work on DocVQA only considers single-page documents. However, in real scenarios documents are mostly composed of multiple…

计算机视觉与模式识别 · 计算机科学 2023-04-05 Rubèn Tito , Dimosthenis Karatzas , Ernest Valveny

Biomedical Question Answering systems play a critical role in processing complex medical queries, yet they often struggle with the intricate nature of medical data and the demand for multi-hop reasoning. In this paper, we propose a model…

计算与语言 · 计算机科学 2026-01-13 Quoc-An Nguyen , Thi-Minh-Thu Vu , Bich-Dat Nguyen , Dinh-Quang-Minh Tran , Hoang-Quynh Le

Multi-hop QA requires the machine to answer complex questions through finding multiple clues and reasoning, and provide explanatory evidence to demonstrate the machine reasoning process. We propose Relation Extractor-Reader and Comparator…

计算与语言 · 计算机科学 2021-10-27 Ruiliu Fu , Han Wang , Xuejun Zhang , Jun Zhou , Yonghong Yan

Effective multi-hop question answering (QA) requires reasoning over multiple scattered paragraphs and providing explanations for answers. Most existing approaches cannot provide an interpretable reasoning process to illustrate how these…

计算与语言 · 计算机科学 2022-08-29 Zhenyun Deng , Yonghua Zhu , Yang Chen , Michael Witbrock , Patricia Riddle

Multi-Hop Question Answering (MHQA) is crucial for evaluating the model's capability to integrate information from diverse sources. However, creating extensive and high-quality MHQA datasets is challenging: (i) manual annotation is…

计算与语言 · 计算机科学 2026-04-21 Zhiyu Shen , Jiyuan Liu , Yunhe Pang , Yanghui Rao , Fu Lee Wang , Jianxing Yu

This paper proposes a question-answering system that can answer questions whose supporting evidence is spread over multiple (potentially long) documents. The system, called Visconde, uses a three-step pipeline to perform the task:…

计算与语言 · 计算机科学 2022-12-20 Jayr Pereira , Robson Fidalgo , Roberto Lotufo , Rodrigo Nogueira

Long document question answering (DocQA) aims to answer questions from long documents over 10k words. They usually contain content structures such as sections, sub-sections, and paragraph demarcations. However, the indexing methods of long…

计算与语言 · 计算机科学 2024-04-24 Kuicai Dong , Derrick Goh Xin Deik , Yi Quan Lee , Hao Zhang , Xiangyang Li , Cong Zhang , Yong Liu

When answering complex questions, people can seamlessly combine information from visual, textual and tabular sources. While interest in models that reason over multiple pieces of evidence has surged in recent years, there has been…

Retrieving information from correlative paragraphs or documents to answer open-domain multi-hop questions is very challenging. To deal with this challenge, most of the existing works consider paragraphs as nodes in a graph and propose…

计算与语言 · 计算机科学 2021-02-09 Nan Shao , Yiming Cui , Ting Liu , Shijin Wang , Guoping Hu

Multi-hop QA (Question Answering) is the task of finding the answer to a question across multiple documents. In recent years, a number of Deep Learning-based approaches have been proposed to tackle this complex task, as well as a few…

计算与语言 · 计算机科学 2023-01-30 Yunjie He , Philip John Gorinski , Ieva Staliunaite , Pontus Stenetorp

We study the problem of Query Performance Prediction (QPP) for open-domain multi-hop Question Answering (QA), where the task is to estimate the difficulty of evaluating a multi-hop question over a corpus. Despite the extensive research on…

计算与语言 · 计算机科学 2023-08-15 Mohammadreza Samadi , Davood Rafiei

Multi-hop Question Answering (QA) is a challenging task since it requires an accurate aggregation of information from multiple context paragraphs and a thorough understanding of the underlying reasoning chains. Recent work in multi-hop QA…

计算与语言 · 计算机科学 2022-11-02 Kaige Xie , Sarah Wiegreffe , Mark Riedl

Explainable multi-hop question answering (QA) not only predicts answers but also identifies rationales, i. e. subsets of input sentences used to derive the answers. This problem has been extensively studied under the supervised setting,…

计算与语言 · 计算机科学 2023-05-24 Wenting Zhao , Justin T. Chiu , Claire Cardie , Alexander M. Rush

Answering questions that require multi-hop reasoning at web-scale necessitates retrieving multiple evidence documents, one of which often has little lexical or semantic relationship to the question. This paper introduces a new graph-based…

计算与语言 · 计算机科学 2020-02-17 Akari Asai , Kazuma Hashimoto , Hannaneh Hajishirzi , Richard Socher , Caiming Xiong

Multi-hop Question Answering (QA) necessitates complex reasoning by integrating multiple pieces of information to resolve intricate questions. However, existing QA systems encounter challenges such as outdated information, context window…

计算与语言 · 计算机科学 2024-08-23 Xiaoming Zhang , Ming Wang , Xiaocui Yang , Daling Wang , Shi Feng , Yifei Zhang

Annotating long-document question answering (long-document QA) pairs is time-consuming and expensive. To alleviate the problem, it might be possible to generate long-document QA pairs via unsupervised question answering (UQA) methods.…

计算与语言 · 计算机科学 2023-05-04 Yuxiang Nie , Heyan Huang , Wei Wei , Xian-Ling Mao

Researchers produce thousands of scholarly documents containing valuable technical knowledge. The community faces the laborious task of reading these documents to identify, extract, and synthesize information. To automate information…

计算与语言 · 计算机科学 2023-12-13 Tavish McDonald , Brian Tsan , Amar Saini , Juanita Ordonez , Luis Gutierrez , Phan Nguyen , Blake Mason , Brenda Ng

Reading and understanding text is one important component in computer aided diagnosis in clinical medicine, also being a major research problem in the field of NLP. In this work, we introduce a question-answering task called MedQA to study…

计算与语言 · 计算机科学 2018-03-01 Xiao Zhang , Ji Wu , Zhiyang He , Xien Liu , Ying Su