Challenge: Existing methods generate whole text based on all KG triples at once and may incorporate incorrect KG Triples for each sentence.
Approach: They propose a bi-directional multi-granularity generation framework that generates graph-level sentences based on KG triples instead of the whole text at a time.
Outcome: The proposed framework achieves state-of-the-art in benchmark dataset WebNLG and further analysis shows the efficiency of different modules.

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Syntax Controlled Knowledge Graph-to-Text Generation with Order and Semantic Consistency (2022.findings-naacl)

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Challenge: Existing knowledge graph-to-text generation methods focus on sequence-to sequence generation, but the linearized order of KG is obtained through a heuristic search without data-driven optimization.
Approach: They propose to generate easy-to-understand sentences from the knowledge graph . they incorporate part-of-speech syntactic tags to constrain the positions to copy words from the KG and employ a semantic context scoring function to evaluate the semantic fitness for each word in its local context.
Outcome: The proposed method achieves state-of-the-art on two datasets, WebNLG and DART, and achieves high consistency.
Knowledge Graph Based Synthetic Corpus Generation for Knowledge-Enhanced Language Model Pre-training (2021.naacl-main)

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Challenge: Existing work on data-to-text generation focused on domain-specific benchmark datasets.
Approach: They use a KG-Wikipedia text aligned corpus to verbalize the entire English Wikidata KG . they show that this approach can be used to integrate structured KGs and natural language corpora .
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Knowledge Graph Generation From Text (2022.findings-emnlp)

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Challenge: Existing methods for generating text from text are limited due to non-unique graph representation, complex node structure, large output spaces and limited parallel training data.
Approach: They propose a novel end-to-end multi-stage Knowledge Graph generation system from textual inputs that separates the overall process into two stages.
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ENT-DESC: Entity Description Generation by Exploring Knowledge Graph (2020.emnlp-main)

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Challenge: Existing models for knowledge-to-text generation use RDF triples or key-value pairs to generate a natural language description.
Approach: They propose a large-scale dataset to facilitate the study of KG-to-text . they propose MGCN model architecture that incorporates aggregation methods to extract the rich graph information.
Outcome: The proposed model can represent the original graph information more comprehensively and integrates multiple aggregation methods to extract the rich graph information.
Structure-aware Knowledge Graph-to-text Generation with Planning Selection and Similarity Distinction (2023.emnlp-main)

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Challenge: Existing methods to generate knowledge graph-to-text (KG-to) text rely on pre-trained language models to bridge the gap between the different structures of the input KG and the target text.
Approach: They propose a method that integrates graph structure-aware modules with pre-trained language models to capture the intricate topology information present in the KG.
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KG-GPT: A General Framework for Reasoning on Knowledge Graphs Using Large Language Models (2023.findings-emnlp)

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Challenge: Using large language models for complex reasoning tasks on knowledge graphs remains unexplored.
Approach: They propose a multi-purpose framework leveraging large language models for complex reasoning tasks on knowledge graphs.
Outcome: The proposed framework outperforms fully-supervised models in KG-based fact verification and KGQA benchmarks.
GAP: A Graph-aware Language Model Framework for Knowledge Graph-to-Text Generation (2022.coling-1)

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Challenge: Recent improvements in KG-to-text generation are due to additional pre-training tasks . these tasks require extensive computational resources while only suggesting marginal improvements.
Approach: They propose a mask structure to capture neighborhood information and a type encoder that adds a bias to the graph-attention weights depending on the connection type.
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G3R: A Graph-Guided Generate-and-Rerank Framework for Complex and Cross-domain Text-to-SQL Generation (2023.findings-acl)

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Challenge: Existing approaches to complex and cross-domain Text-to-SQL generation lack domain knowledge . domain knowledge is not incorporated to enhance their ability to generalise to unseen databases.
Approach: They propose a framework called G3R for complex and cross-domain Text-to-SQL generation . they propose re-ranking SQL queries based on domain knowledge and a graph-guided SQL generator .
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Text Generation from Knowledge Graphs with Graph Transformers (N19-1)

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Challenge: Existing methods for generating text with structured inputs are expensive and require manual annotation.
Approach: They propose a graph transforming encoder which leverages relational structure of knowledge graphs without imposing linearization or hierarchical constraints.
Outcome: The proposed system produces more informative texts than competing methods.
Few-shot Knowledge Graph-to-Text Generation with Pretrained Language Models (2021.findings-acl)

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Challenge: Existing models for KG-to-text generation are based on pretrained language models.
Approach: They propose to automatically generate a text that describes the facts in knowledge graph (KG) they leverage the excellent capacities of pretrained language models (PLMs) in language understanding and generation.
Outcome: The proposed model outperforms all comparison methods on fully-supervised and fewshot settings.

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