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

计算与语言 · 计算机科学 2020-11-19 Chen Zheng , Parisa Kordjamshidi

Large Language Models (LLMs) have excelled in multi-hop question-answering (M-QA) due to their advanced reasoning abilities. However, the impact of the inherent reasoning structures on LLM M-QA performance remains unclear, largely due to…

Long text generation is an important but challenging task.The main problem lies in learning sentence-level semantic dependencies which traditional generative models often suffer from. To address this problem, we propose a Multi-hop…

计算与语言 · 计算机科学 2020-09-29 Liang Zhao , Jingjing Xu , Junyang Lin , Yichang Zhang , Hongxia Yang , Xu Sun

We present a novel abstractive summarization framework that draws on the recent development of a treebank for the Abstract Meaning Representation (AMR). In this framework, the source text is parsed to a set of AMR graphs, the graphs are…

计算与语言 · 计算机科学 2018-05-29 Fei Liu , Jeffrey Flanigan , Sam Thomson , Norman Sadeh , Noah A. Smith

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…

人工智能 · 计算机科学 2022-03-15 Yao Zhang , Peiyao Li , Hongru Liang , Adam Jatowt , Zhenglu Yang

Generating text from graph-based data, such as Abstract Meaning Representation (AMR), is a challenging task due to the inherent difficulty in how to properly encode the structure of a graph with labeled edges. To address this difficulty, we…

计算与语言 · 计算机科学 2019-09-04 Leonardo F. R. Ribeiro , Claire Gardent , Iryna Gurevych

Combining large language models with logical reasoning enhances their capacity to address problems in a robust and reliable manner. Nevertheless, the intricate nature of logical reasoning poses challenges when gathering reliable data from…

Multi-hop question answering (QA) necessitates multi-step reasoning and retrieval across interconnected subjects, attributes, and relations. Existing retrieval-augmented generation (RAG) methods struggle to capture these structural…

计算与语言 · 计算机科学 2026-02-19 Jimeng Shi , Wei Hu , Runchu Tian , Bowen Jin , Wonbin Kweon , SeongKu Kang , Yunfan Kang , Dingqi Ye , Sizhe Zhou , Shaowen Wang , Jiawei Han

The success of scene graphs for visual scene understanding has brought attention to the benefits of abstracting a visual input (e.g., image) into a structured representation, where entities (people and objects) are nodes connected by edges…

计算机视觉与模式识别 · 计算机科学 2022-10-28 Mohamed Ashraf Abdelsalam , Zhan Shi , Federico Fancellu , Kalliopi Basioti , Dhaivat J. Bhatt , Vladimir Pavlovic , Afsaneh Fazly

Multi-hop question answering (QA) requires systems to iteratively retrieve evidence and reason across multiple hops. While recent RAG and agentic methods report strong results, the underlying retrieval--reasoning \emph{process} is often…

计算与语言 · 计算机科学 2026-01-05 Yuelyu Ji , Zhuochun Li , Rui Meng , Daqing He

Temporal knowledge graph question answering (TKGQA) involves multi-hop reasoning over temporally constrained entity relationships in the knowledge graph to answer a given question. However, at each hop, large language models (LLMs) retrieve…

人工智能 · 计算机科学 2026-01-06 Wuzhenghong Wen , Chao Xue , Su Pan , Yuwei Sun , Minlong Peng

The Abstract Meaning Representation (AMR) is a representation for open-domain rich semantics, with potential use in fields like event extraction and machine translation. Node generation, typically done using a simple dictionary lookup, is…

计算与语言 · 计算机科学 2015-06-11 Keenon Werling , Gabor Angeli , Christopher Manning

Knowledge Graph Question Answering (KGQA) aims to answer user-questions from a knowledge graph (KG) by identifying the reasoning relations between topic entity and answer. As a complex branch task of KGQA, multi-hop KGQA requires reasoning…

计算与语言 · 计算机科学 2022-11-15 Weiqiang Jin , Biao Zhao , Hang Yu , Xi Tao , Ruiping Yin , Guizhong Liu

This paper presents a survey of Abstract Meaning Representation (AMR), a semantic representation framework that captures the meaning of sentences through a graph-based structure. AMR represents sentences as rooted, directed acyclic graphs,…

计算与语言 · 计算机科学 2025-05-07 Behrooz Mansouri

We propose a novel, path-based reasoning approach for the multi-hop reading comprehension task where a system needs to combine facts from multiple passages to answer a question. Although inspired by multi-hop reasoning over knowledge…

计算与语言 · 计算机科学 2019-07-10 Souvik Kundu , Tushar Khot , Ashish Sabharwal , Peter Clark

Graph-based retrieval-augmented generation (RAG) enriches large language models (LLMs) with external knowledge for long-context understanding and multi-hop reasoning, but existing methods face a granularity dilemma: fine-grained…

计算与语言 · 计算机科学 2025-09-26 Yaxiong Wu , Jianyuan Bo , Yongyue Zhang , Sheng Liang , Yong Liu

Asking questions from natural language text has attracted increasing attention recently, and several schemes have been proposed with promising results by asking the right question words and copy relevant words from the input to the…

计算与语言 · 计算机科学 2020-09-17 Xiyao Ma , Qile Zhu , Yanlin Zhou , Xiaolin Li , Dapeng Wu

Multi-hop Question Answering (QA) requires the machine to answer complex questions by finding scattering clues and reasoning from multiple documents. Graph Network (GN) and Question Decomposition (QD) are two common approaches at present.…

计算与语言 · 计算机科学 2022-03-18 Jiawei Li , Mucheng Ren , Yang Gao , Yizhe Yang

CommonsenseQA is a task in which a correct answer is predicted through commonsense reasoning with pre-defined knowledge. Most previous works have aimed to improve the performance with distributed representation without considering the…

计算与语言 · 计算机科学 2020-11-09 Jungwoo Lim , Dongsuk Oh , Yoonna Jang , Kisu Yang , Heuiseok Lim

Two types of knowledge, triples from knowledge graphs and texts from documents, have been studied for knowledge aware open-domain conversation generation, in which graph paths can narrow down vertex candidates for knowledge selection…

人工智能 · 计算机科学 2019-09-04 Zhibin Liu , Zheng-Yu Niu , Hua Wu , Haifeng Wang