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Retrieval-augmented generation (RAG) remains brittle on multi-step questions and heterogeneous evidence sources, trading accuracy against latency and token/tool budgets. This paper introduces RELOOP, a structure aware framework using…

Computation and Language · Computer Science 2026-04-24 Ruiyi Yang , Hao Xue , Imran Razzak , Hakim Hacid , Flora D. Salim

Question decomposition has emerged as an effective strategy for prompting Large Language Models (LLMs) to answer complex questions. However, while existing methods primarily focus on unimodal language models, the question decomposition…

Computation and Language · Computer Science 2024-10-08 Haowei Zhang , Jianzhe Liu , Zhen Han , Shuo Chen , Bailan He , Volker Tresp , Zhiqiang Xu , Jindong Gu

Large Language Models (LLMs) require lightweight avenues of updating stored information that has fallen out of date. Knowledge Editing (KE) approaches have been successful in updating model knowledge for simple factual queries but struggle…

Artificial Intelligence · Computer Science 2025-08-05 Dominic Simon , Rickard Ewetz

Large Language Models (LLMs) excel in many areas but continue to face challenges with complex reasoning tasks, such as Multi-Hop Question Answering (MHQA). MHQA requires integrating evidence from diverse sources while managing intricate…

Computation and Language · Computer Science 2025-05-29 Bolei He , Xinran He , Mengke Chen , Xianwei Xue , Ying Zhu , Zhenhua Ling

Multi-hop reading comprehension (RC) questions are challenging because they require reading and reasoning over multiple paragraphs. We argue that it can be difficult to construct large multi-hop RC datasets. For example, even highly…

Computation and Language · Computer Science 2019-06-10 Sewon Min , Eric Wallace , Sameer Singh , Matt Gardner , Hannaneh Hajishirzi , Luke Zettlemoyer

Multi-hop question answering (QA) requires a model to retrieve and integrate information from different parts of a long text to answer a question. Humans answer this kind of complex questions via a divide-and-conquer approach. In this…

Computation and Language · Computer Science 2021-01-28 Yixuan Tang , Hwee Tou Ng , Anthony K. H. Tung

Creating multiple-choice questions to assess reading comprehension of a given article involves generating question-answer pairs (QAPs) and adequate distractors. We present two methods to tackle the challenge of QAP generations: (1) A…

Computation and Language · Computer Science 2023-03-28 Cheng Zhang

A trending paradigm for multiple-choice question answering (MCQA) is using a text-to-text framework. By unifying data in different tasks into a single text-to-text format, it trains a generative encoder-decoder model which is both powerful…

Computation and Language · Computer Science 2022-05-03 Zixian Huang , Ao Wu , Jiaying Zhou , Yu Gu , Yue Zhao , Gong Cheng

Large language models (LLMs) remain brittle on multi-hop question answering (MHQA), where answering requires combining evidence across documents through retrieval and reasoning. Iterative retrieval systems can fail by locking onto an early…

Artificial Intelligence · Computer Science 2026-04-01 Xingyu Li , Rongguang Wang , Yuying Wang , Mengqing Guo , Chenyang Li , Tao Sheng , Sujith Ravi , Dan Roth

Multi-hop question answering (QA) involves finding multiple relevant passages and performing step-by-step reasoning to answer complex questions. Previous works on multi-hop QA employ specific methods from different modeling perspectives…

Computation and Language · Computer Science 2025-05-20 Taolin Zhang , Dongyang Li , Qizhou Chen , Chengyu Wang , Xiaofeng He

Large language models (LLMs) are increasingly evaluated on their ability to perform multi-hop reasoning, i.e., to combine multiple pieces of information into a coherent inference. We introduce KinshipQA, a benchmark designed to probe this…

Computation and Language · Computer Science 2026-01-13 Tianda Sun , Dimitar Kazakov

Multi-hop Question Answering (MHQA) aims to answer questions that require multi-step reasoning. It presents two key challenges: generating correct reasoning paths in response to the complex user queries, and accurately retrieving essential…

Computation and Language · Computer Science 2026-04-28 Yuqing Fu , Yimin Deng , Wanyu Wang , Yuhao Wang , Yejing Wang , Hongshi Liu , Yiqi Wang , Xiao Han , Maolin Wang , Guoshuai Zhao , Yi Chang , Xiangyu Zhao

Retrieval-Augmented Generation (RAG) over Knowledge Graphs (KGs) suffers from the fact that indexing approaches may lose important contextual nuance when text is reduced to triples, thereby degrading performance in downstream…

Computation and Language · Computer Science 2026-03-13 Riccardo Campi , Nicolò Oreste Pinciroli Vago , Mathyas Giudici , Marco Brambilla , Piero Fraternali

The semantic parsing-based method is an important research branch for knowledge-based question answering. It usually generates executable programs lean upon the question and then conduct them to reason answers over a knowledge base. Benefit…

Computation and Language · Computer Science 2023-09-12 Yingyao Wang , Yongwei Zhou , Chaoqun Duan , Junwei Bao , Tiejun Zhao

Multi-hop Question Answering over Knowledge Graph~(KGQA) aims to find the answer entities that are multiple hops away from the topic entities mentioned in a natural language question on a large-scale Knowledge Graph (KG). To cope with the…

Computation and Language · Computer Science 2023-03-02 Jinhao Jiang , Kun Zhou , Wayne Xin Zhao , Ji-Rong Wen

Grounding large language models (LLMs) in verifiable external sources is a well-established strategy for generating reliable answers. Retrieval-augmented generation (RAG) is one such approach, particularly effective for tasks like question…

Computation and Language · Computer Science 2025-07-02 Paul J. L. Ammann , Jonas Golde , Alan Akbik

Large language models (LLMs) have demonstrated impressive capabilities in various reasoning tasks but face significant challenges with complex, knowledge-intensive multi-hop queries, particularly those involving new or long-tail knowledge.…

Computation and Language · Computer Science 2025-08-25 Jie He , Nan Hu , Wanqiu Long , Jiaoyan Chen , Jeff Z. Pan

Multi-hop question answering (MHQA) requires a model to retrieve and integrate information from multiple passages to answer a complex question. Recent systems leverage the power of large language models and integrate evidence retrieval with…

Computation and Language · Computer Science 2024-07-08 Zhenyu Bi , Daniel Hajialigol , Zhongkai Sun , Jie Hao , Xuan Wang

Multi-hop question answering (MHQA) enables accurate answers to complex queries by retrieving and reasoning over evidence dispersed across multiple documents. Existing MHQA approaches mainly rely on iterative retrieval-augmented generation,…

Artificial Intelligence · Computer Science 2026-04-21 Wei Chen , Lili Zhao , Zhi Zheng , HuiJun Hou , Tong Xu

Despite recent advances in large language models (LLMs), most QA benchmarks are still confined to single-paragraph or single-document settings, failing to capture the complexity of real-world information-seeking tasks. Practical QA often…

Computation and Language · Computer Science 2025-08-25 Jiwon Park , Seohyun Pyeon , Jinwoo Kim , Rina Carines Cabal , Yihao Ding , Soyeon Caren Han