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Knowledge Base Question Answering (KBQA) tasks that involve complex reasoning are emerging as an important research direction. However, most existing KBQA datasets focus primarily on generic multi-hop reasoning over explicit facts, largely…

Answering multi-hop questions over hybrid factual knowledge from the given text and table (TextTableQA) is a challenging task. Existing models mainly adopt a retriever-reader framework, which have several deficiencies, such as noisy…

Computation and Language · Computer Science 2024-06-26 Fangyu Lei , Xiang Li , Yifan Wei , Shizhu He , Yiming Huang , Jun Zhao , Kang Liu

Knowledge graphs are essential for numerous downstream natural language processing applications, but are typically incomplete with many facts missing. This results in research efforts on multi-hop reasoning task, which can be formulated as…

Artificial Intelligence · Computer Science 2021-09-03 Yao Zhang , Hongru Liang , Adam Jatowt , Wenqiang Lei , Xin Wei , Ning Jiang , Zhenglu Yang

Multimodal multihop question answering (MMQA) requires reasoning over images and text from multiple sources. Despite advances in visual question answering, this multihop setting remains underexplored due to a lack of quality datasets.…

Computation and Language · Computer Science 2025-09-16 Amirhossein Abaskohi , Spandana Gella , Giuseppe Carenini , Issam H. Laradji

Most existing approaches for Knowledge Base Question Answering (KBQA) focus on a specific underlying knowledge base either because of inherent assumptions in the approach, or because evaluating it on a different knowledge base requires…

Large language models excel in question-answering (QA) yet still struggle with multi-hop reasoning and temporal questions. Query-based knowledge graph QA (KGQA) offers a modular alternative by generating executable queries instead of direct…

Computation and Language · Computer Science 2025-07-17 Artem Alekseev , Mikhail Chaichuk , Miron Butko , Alexander Panchenko , Elena Tutubalina , Oleg Somov

Obtaining training data for multi-hop question answering (QA) is time-consuming and resource-intensive. We explore the possibility to train a well-performed multi-hop QA model without referencing any human-labeled multi-hop question-answer…

Computation and Language · Computer Science 2021-04-13 Liangming Pan , Wenhu Chen , Wenhan Xiong , Min-Yen Kan , William Yang Wang

In the question answering(QA) task, multi-hop reasoning framework has been extensively studied in recent years to perform more efficient and interpretable answer reasoning on the Knowledge Graph(KG). However, multi-hop reasoning is…

Artificial Intelligence · Computer Science 2022-03-15 Yao Zhang , Peiyao Li , Hongru Liang , Adam Jatowt , Zhenglu Yang

Building training-ready multi-hop question answering (QA) datasets that truly stress a model's retrieval and reasoning abilities remains highly challenging recently. While there have been a few recent evaluation datasets that capture the…

Artificial Intelligence · Computer Science 2025-11-26 Bingsen Qiu , Zijian Liu , Xiao Liu , Bingjie Wang , Feier Zhang , Yixuan Qin , Chunyan Li , Haoshen Yang , Zeren Gao

Knowledge Base Question Answering (KBQA) challenges models to bridge the gap between natural language and strict knowledge graph schemas by generating executable logical forms. While Large Language Models (LLMs) have advanced this field,…

Computation and Language · Computer Science 2026-01-12 Xin Sun , Zhongqi Chen , Xing Zheng , Qiang Liu , Shu Wu , Bowen Song , Zilei Wang , Weiqiang Wang , Liang Wang

This work deals with the challenge of learning and reasoning over multi-modal multi-hop question answering (QA). We propose a graph reasoning network based on the semantic structure of the sentences to learn multi-source reasoning paths and…

Computation and Language · Computer Science 2025-01-09 Navya Yarrabelly , Saloni Mittal

Knowledge base question answering (KBQA) is a critical yet challenging task due to the vast number of entities within knowledge bases and the diversity of natural language questions posed by users. Unfortunately, the performance of most…

Computation and Language · Computer Science 2024-01-29 Zhenyu Li , Sunqi Fan , Yu Gu , Xiuxing Li , Zhichao Duan , Bowen Dong , Ning Liu , Jianyong Wang

Question Answering (QA) over Knowledge Base (KB) aims to automatically answer natural language questions via well-structured relation information between entities stored in knowledge bases. In order to make KBQA more applicable in actual…

Computation and Language · Computer Science 2020-07-28 Bin Fu , Yunqi Qiu , Chengguang Tang , Yang Li , Haiyang Yu , Jian Sun

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

Understanding complex biomolecular mechanisms requires multi-step reasoning across molecular interactions, signaling cascades, and metabolic pathways. While large language models(LLMs) show promise in such tasks, their application to…

Artificial Intelligence · Computer Science 2025-11-12 Tianwen Lyu , Xiang Zhuang , Keyan Ding , Xinzhe Cao , Lei Liang , Wei Zhao , Qiang Zhang , Huajun Chen

Search engines based on keyword retrieval can no longer adapt to the way of information acquisition in the era of intelligent Internet of Things due to the return of keyword related Internet pages. How to quickly, accurately and effectively…

Computation and Language · Computer Science 2022-01-03 Gaochen Wu , Bin Xu , Yuxin Qin , Yang Liu , Lingyu Liu , Ziwei Wang

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

When answering a question, humans utilize the information available across different modalities to synthesize a consistent and complete chain of thought (CoT). This process is normally a black box in the case of deep learning models like…

Computation and Language · Computer Science 2022-10-18 Pan Lu , Swaroop Mishra , Tony Xia , Liang Qiu , Kai-Wei Chang , Song-Chun Zhu , Oyvind Tafjord , Peter Clark , Ashwin Kalyan

Multi-hop question answering (QA) is widely used to evaluate the reasoning capabilities of large language models, yet most benchmarks focus on final answer correctness and overlook intermediate reasoning, especially in long multimodal…

Computation and Language · Computer Science 2026-03-10 Biao Xiang , Soyeon Caren Han , Yihao Ding

Despite readily memorizing world knowledge about entities, pre-trained language models (LMs) struggle to compose together two or more facts to perform multi-hop reasoning in question-answering tasks. In this work, we propose techniques that…

Computation and Language · Computer Science 2023-06-08 Kanishka Misra , Cicero Nogueira dos Santos , Siamak Shakeri