Challenge: Existing approaches to generating text from AMRs focus on training sequence-to-sequence or graph-tosequent models on annotated data.
Approach: They propose a strong pre-trained language model with cycle consistency-based re-scoring to generate AMR text.
Outcome: The proposed model outperforms existing methods on the English LDC2017T10 dataset.

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AMR-To-Text Generation with Graph Transformer (2020.tacl-1)

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Challenge: Abstract meaning representation (AMR)-to-text generation is challenging task for natural language processing.
Approach: They propose a graph-to-sequence model that directly encodes AMR graphs and learns node representations.
Outcome: The proposed model outperforms the current state-of-the-art neural approach by 1.5 BLEU points on LDC2015E86 and 4.8 BLUE points on the LDC2017T10 and achieves new state- of-the art performance.
A Partially Rule-Based Approach to AMR Generation (N19-3)

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Challenge: Abstract Meaning Representation (AMR) is a representation of a sentence as a labeled graph . because of these abstractions, it can be difficult to generate from AMR back to a fluent English sentence .
Approach: They propose a new approach to generating English text from Abstract Meaning Representation (AMR) it is largely rule-based, supplemented by a language model and simple statistical linearization models . they also address difficulties of automatically evaluating AMR generation systems .
Outcome: The proposed approach produces a fluent English sentence with a high quality . it is difficult to generate from an AMR back to a sentence which preserves original meaning .
A Graph-to-Sequence Model for AMR-to-Text Generation (P18-1)

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Challenge: Abstract Meaning Representation (AMR) is a semantic formalism that encodes the meaning of a sentence as a rooted, directed graph.
Approach: They propose a neural graph-to-sequence model that leverages LSTM to encode a linearized AMR structure.
Outcome: The proposed model outperforms existing methods on a benchmark.
Factorising AMR generation through syntax (N19-1)

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Challenge: Abstract Meaning Representation (AMR) is a semantic annotation framework which abstracts away from the surface form of text to capture the core 'who did what to whom' structure.
Approach: They propose to decompose the generation process into two steps: first generate a syntactic structure, and then generate the surface form.
Outcome: The proposed approach generates meaning-preserving syntactic paraphrases of the same graph, as judged by humans.
Online Back-Parsing for AMR-to-Text Generation (2020.emnlp-main)

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Challenge: Abstract meaning representation (AMR) is a semantic graph representation that abstracts meaning away from a sentence.
Approach: They propose a decoder that back predicts projected AMR graphs on target sentences . their results show superiority over previous state-of-the-art decoded graph Transformer .
Outcome: The proposed model outperforms the state-of-the-art model on two AMR benchmarks.
Graph Pre-training for AMR Parsing and Generation (2022.acl-long)

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Challenge: Abstract meaning representation (AMR) highlights the core semantic information of text in a graph structure.
Approach: They propose two graph auto-encoding strategies for graph-to-graph pre-training and four tasks to integrate text and graph information during pre-tuning to improve structure awareness.
Outcome: The proposed model is superior to pre-trained language models on AMR parsing and AMR-to-text generation tasks.
Multilingual AMR-to-Text Generation (2020.emnlp-main)

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Challenge: Existing work on generating text from structured data into English has focused on bridging the gap between structure and natural language (NL) and semantically underspecified input and fully specified output.
Approach: They propose a multilingual approach that can decode into 21 different languages . they leverage advances in cross-lingual embeddings and pretraining to generate multilingual models .
Outcome: The proposed model surpasses baselines that generate into one language in eighteen languages.
AMR-TST: Abstract Meaning Representation-based Text Style Transfer (2023.findings-acl)

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Challenge: Abstract Meaning Representation (AMR) is a semantic representation that can enhance natural language generation (NLG) by providing a logical semantic input.
Approach: They propose an AMR-based text style transfer technique that converts source text to an AML graph and generates transferred text based on the AMR graph modified by a TST policy named style rewriting.
Outcome: The proposed method achieves state-of-the-art results compared with baseline models in automatic and human evaluations.
Structural Neural Encoders for AMR-to-text Generation (N19-1)

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Challenge: Abstract Meaning Representation (AMR) graphs are graphs, rather than trees, because they contain reentrant nodes with multiple parents.
Approach: They propose to use sequence-to-sequence models that encode AMR graphs into vector representations to generate sentences from AMRs.
Outcome: The proposed model outperforms tree encoders in the AMR-to-text generation task by 24.40 points.
Enhancing AMR-to-Text Generation with Dual Graph Representations (D19-1)

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Challenge: Abstract Meaning Representation (AMR) is a linguistically-grounded semantic formalism that represents the meaning of a sentence as a directed graph.
Approach: They propose a graph-to-sequence model that encodes different but complementary perspectives of the structural information contained in the graph.
Outcome: The proposed model achieves state-of-the-art results on two AMR datasets.

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