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Related papers: Modeling Multi-hop Question Answering as Single Se…

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Multi-hop reading comprehension across multiple documents attracts much attention recently. In this paper, we propose a novel approach to tackle this multi-hop reading comprehension problem. Inspired by human reasoning processing, we…

Computation and Language · Computer Science 2020-06-15 Zeyun Tang , Yongliang Shen , Xinyin Ma , Wei Xu , Jiale Yu , Weiming Lu

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…

Computation and Language · Computer Science 2021-10-27 Ruiliu Fu , Han Wang , Xuejun Zhang , Jun Zhou , Yonghong Yan

Multi-hop QA (MHQA) involves step-by-step reasoning to answer complex questions and find multiple relevant supporting facts. However, Existing large language models'(LLMs) reasoning ability in multi-hop question answering remains…

Computation and Language · Computer Science 2024-02-20 Jian Wu , Linyi Yang , Yuliang Ji , Wenhao Huang , Börje F. Karlsson , Manabu Okumura

Multi-hop knowledge based question answering (KBQA) is a complex task for natural language understanding. Many KBQA approaches have been proposed in recent years, and most of them are trained based on labeled reasoning path. This hinders…

Machine Learning · Computer Science 2020-05-25 Kechen Qin , Yu Wang , Cheng Li , Kalpa Gunaratna , Hongxia Jin , Virgil Pavlu , Javed A. Aslam

We introduce a novel retrieval-augmented generation (RAG) framework tailored for multihop question answering. First, our system uses large language model (LLM) to decompose complex multihop questions into a sequence of single-hop…

Computation and Language · Computer Science 2025-08-14 Seokgi Lee

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…

Computation and Language · Computer Science 2021-02-09 Nan Shao , Yiming Cui , Ting Liu , Shijin Wang , Guoping Hu

To date, most of recent work under the retrieval-reader framework for open-domain QA focuses on either extractive or generative reader exclusively. In this paper, we study a hybrid approach for leveraging the strengths of both models. We…

Computation and Language · Computer Science 2021-06-04 Hao Cheng , Yelong Shen , Xiaodong Liu , Pengcheng He , Weizhu Chen , Jianfeng Gao

Multi-hop question answering over knowledge graphs remains computationally challenging due to the combinatorial explosion of possible reasoning paths. Recent approaches rely on expensive Large Language Model (LLM) inference for both entity…

Computation and Language · Computer Science 2025-11-26 Manil Shrestha , Edward Kim

Current Open-Domain Question Answering (ODQA) model paradigm often contains a retrieving module and a reading module. Given an input question, the reading module predicts the answer from the relevant passages which are retrieved by the…

Computation and Language · Computer Science 2022-06-07 Donghan Yu , Chenguang Zhu , Yuwei Fang , Wenhao Yu , Shuohang Wang , Yichong Xu , Xiang Ren , Yiming Yang , Michael Zeng

We propose a framework for answering open domain multi-hop questions in which partial information is read and used to generate followup questions, to finally be answered by a pretrained single-hop answer extractor. This framework makes each…

Computation and Language · Computer Science 2020-02-28 Christopher Malon , Bing Bai

Existing approaches for open-domain question answering (QA) are typically designed for questions that require either single-hop or multi-hop reasoning, which make strong assumptions of the complexity of questions to be answered. Also,…

Computation and Language · Computer Science 2021-05-25 Ping Nie , Yuyu Zhang , Arun Ramamurthy , Le Song

Multi-hop textual question answering requires combining information from multiple sentences. We focus on a natural setting where, unlike typical reading comprehension, only partial information is provided with each question. The model must…

Computation and Language · Computer Science 2019-09-23 Tushar Khot , Ashish Sabharwal , Peter Clark

Retrieval-augmented generation (RAG) has become a key paradigm for knowledge-intensive question answering. However, existing multi-hop RAG systems remain inefficient, as they alternate between retrieval and reasoning at each step, resulting…

Computation and Language · Computer Science 2026-02-06 Hao Yang , Zhiyu Yang , Xupeng Zhang , Wei Wei , Yunjie Zhang , Lin Yang

Retrieval-Augmented Generation (RAG) has demonstrated significant effectiveness in enhancing large language models (LLMs) for complex multi-hop question answering (QA). For multi-hop QA tasks, current iterative approaches predominantly rely…

Computation and Language · Computer Science 2026-01-19 Yuling Shi , Maolin Sun , Zijun Liu , Mo Yang , Yixiong Fang , Tianran Sun , Xiaodong Gu

In response to the increasing use of interactive artificial intelligence, the demand for the capacity to handle complex questions has increased. Multi-hop question generation aims to generate complex questions that requires multi-step…

Computation and Language · Computer Science 2024-04-02 Seonjeong Hwang , Yunsu Kim , Gary Geunbae Lee

Fact-checking real-world claims often requires complex, multi-step reasoning due to the absence of direct evidence to support or refute them. However, existing fact-checking systems often lack transparency in their decision-making, making…

Computation and Language · Computer Science 2023-10-12 Liangming Pan , Xinyuan Lu , Min-Yen Kan , Preslav Nakov

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…

Computation and Language · Computer Science 2023-08-15 Mohammadreza Samadi , Davood Rafiei

Knowledge graph (KG) is known to be helpful for the task of question answering (QA), since it provides well-structured relational information between entities, and allows one to further infer indirect facts. However, it is challenging to…

Machine Learning · Computer Science 2017-11-29 Yuyu Zhang , Hanjun Dai , Zornitsa Kozareva , Alexander J. Smola , Le Song

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…

Computation and Language · Computer Science 2023-01-30 Yunjie He , Philip John Gorinski , Ieva Staliunaite , Pontus Stenetorp

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…

Computation and Language · Computer Science 2022-08-29 Zhenyun Deng , Yonghua Zhu , Yang Chen , Michael Witbrock , Patricia Riddle