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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

Generating an abstract from a collection of documents is a desirable capability for many real-world applications. However, abstractive approaches to multi-document summarization have not been thoroughly investigated. This paper studies the…

计算与语言 · 计算机科学 2018-06-15 Kexin Liao , Logan Lebanoff , Fei Liu

Abstract Meaning Representation (AMR) is a Semantic Parsing formalism that aims at providing a semantic graph abstraction representing a given text. Current approaches are based on autoregressive language models such as BART or T5,…

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

Abstract Meaning Representation (AMR) is a rooted, labeled, acyclic graph representing the semantics of natural language. As previous works show, although AMR is designed for English at first, it can also represent semantics in other…

计算与语言 · 计算机科学 2021-06-10 Yitao Cai , Zhe Lin , Xiaojun Wan

Abstract Meaning Representations (AMR) are a broad-coverage semantic formalism which represents sentence meaning as a directed acyclic graph. To train most AMR parsers, one needs to segment the graph into subgraphs and align each such…

计算与语言 · 计算机科学 2022-10-26 Chunchuan Lyu , Shay B. Cohen , Ivan Titov

Abstract meaning representations (AMRs) are broad-coverage sentence-level semantic representations. AMRs represent sentences as rooted labeled directed acyclic graphs. AMR parsing is challenging partly due to the lack of annotated…

计算与语言 · 计算机科学 2018-05-15 Chunchuan Lyu , Ivan Titov

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

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

Abstract Meaning Representation (AMR) represents sentences as directed, acyclic and rooted graphs, aiming at capturing their meaning in a machine readable format. AMR parsing converts natural language sentences into such graphs. However,…

计算与语言 · 计算机科学 2019-04-18 Juri Opitz , Anette Frank

The development of artificial intelligence systems capable of understanding and reasoning about complex real-world scenarios is a significant challenge. In this work we present a novel approach to enhance and exploit LLM reactive capability…

人工智能 · 计算机科学 2024-11-20 Stefano De Giorgis , Aldo Gangemi , Alessandro Russo

Abstract Meaning Representation (AMR) is a recently designed semantic representation language intended to capture the meaning of a sentence, which may be represented as a single-rooted directed acyclic graph with labeled nodes and edges.…

计算与语言 · 计算机科学 2019-05-30 Rafael T. Anchieta , Marco A. S. Cabezudo , Thiago A. S. Pardo

Abstract Meaning Representation (AMR) parsing aims to predict an AMR graph from textual input. Recently, there has been notable growth in AMR parsing performance. However, most existing work focuses on improving the performance in the…

计算与语言 · 计算机科学 2022-10-25 Xuefeng Bai , Seng Yang , Leyang Cui , Linfeng Song , Yue Zhang

Although neural models have achieved competitive results in dialogue systems, they have shown limited ability in representing core semantics, such as ignoring important entities. To this end, we exploit Abstract Meaning Representation (AMR)…

计算与语言 · 计算机科学 2021-06-02 Xuefeng Bai , Yulong Chen , Linfeng Song , Yue Zhang

We introduce a new method to improve existing multilingual sentence embeddings with Abstract Meaning Representation (AMR). Compared with the original textual input, AMR is a structured semantic representation that presents the core concepts…

计算与语言 · 计算机科学 2022-10-19 Deng Cai , Xin Li , Jackie Chun-Sing Ho , Lidong Bing , Wai Lam

Despite extensive research on parsing of English sentences into Abstraction Meaning Representation (AMR) graphs, which are compared to gold graphs via the Smatch metric, full-document parsing into a unified graph representation lacks…

Abstract Meaning Representation (AMR) parsing aims to extract an abstract semantic graph from a given sentence. The sequence-to-sequence approaches, which linearize the semantic graph into a sequence of nodes and edges and generate the…

计算与语言 · 计算机科学 2023-10-16 Bofei Gao , Liang Chen , Peiyi Wang , Zhifang Sui , Baobao Chang

Symbolic sentence meaning representations, such as AMR (Abstract Meaning Representation) provide expressive and structured semantic graphs that act as intermediates that simplify downstream NLP tasks. However, the instruction-following…

计算与语言 · 计算机科学 2024-07-08 Peiran Yao , Kostyantyn Guzhva , Denilson Barbosa

Scene graph is structured semantic representation that can be modeled as a form of graph from images and texts. Image-based scene graph generation research has been actively conducted until recently, whereas text-based scene graph…

计算机视觉与模式识别 · 计算机科学 2022-10-18 Woo Suk Choi , Yu-Jung Heo , Byoung-Tak Zhang

Meaning Representation (AMR) is a graph-based semantic representation for sentences, composed of collections of concepts linked by semantic relations. AMR-based approaches have found success in a variety of applications, but a challenge to…

计算与语言 · 计算机科学 2021-11-30 Fei-Tzin Lee , Chris Kedzie , Nakul Verma , Kathleen McKeown
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