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ReGen: Reinforcement Learning for Text and Knowledge Base Generation using Pretrained Language Models

27 Aug 2021EMNLP 2021 11arXiv:2108.12472archive 2025-07-28

Pierre L. Dognin, Inkit Padhi, Igor Melnyk, Payel Das

Automatic construction of relevant Knowledge Bases (KBs) from text, and generation of semantically meaningful text from KBs are both long-standing goals in Machine Learning. In this paper, we present ReGen, a bidirectional generation of text and graph leveraging Reinforcement Learning (RL) to improve performance. Graph linearization enables us to re-frame both tasks as a sequence to sequence generation problem regardless of the generative direction, which in turn allows the use of Reinforcement Learning for sequence training where the model itself is employed as its own critic leading to Self-Critical Sequence Training (SCST). We present an extensive investigation demonstrating that the use of RL via SCST benefits graph and text generation on WebNLG+ 2020 and TekGen datasets. Our system provides state-of-the-art results on WebNLG+ 2020 by significantly improving upon published results from the WebNLG 2020+ Challenge for both text-to-graph and graph-to-text generation tasks.

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Tasks

Graph GenerationJoint Entity and Relation ExtractionReinforcement LearningReinforcement Learning (RL)Text Generationreinforcement-learning

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Joint Entity and Relation Extraction TekGen ReGen-SCST F1 62.3 #1 of 2 Archive leaderboard report
Joint Entity and Relation Extraction TekGen ReGen-CE F1 61.9 #2 of 2 Archive leaderboard report
Joint Entity and Relation Extraction WebNLG 3.0 ReGen (Ours) T2G.CE F1 72.3 #1 of 10 Archive leaderboard report
Joint Entity and Relation Extraction WebNLG 3.0 ReGen (Ours) T2G.RL F1 72 #4 of 10 Archive leaderboard report
Joint Entity and Relation Extraction WebNLG 3.0 Amazon AI (Shanghai) (guo-etal-2020-2) F1 68.9 #5 of 10 Archive leaderboard report
Joint Entity and Relation Extraction WebNLG 3.0 bt5 (agarwal-etal-2020-machine) F1 68.2 #7 of 10 Archive leaderboard report

Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.

Methods

REINFORCESCST

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