# 'UFAL at MRP 2020: Permutation-invariant Semantic Parsing in PERIN

arXiv: https://arxiv.org/abs/2011.00758 · HTML: https://mlsanity.com/paper/2011.00758/

## Key facts

- Cited by 12 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 2 Nov 2020.

## Built on by (most cited first, 12 of 12)

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- [Structured Sentiment Analysis as Dependency Graph Parsing](https://mlsanity.com/paper/2105.14504/) (2021)
- [Neural Semantic Parsing with Extremely Rich Symbolic Meaning Representations](https://mlsanity.com/paper/2404.12698/) (2024)
- [EventGraph: Event Extraction as Semantic Graph Parsing](https://mlsanity.com/paper/2210.08646/) (2022)
- [Direct parsing to sentiment graphs](https://mlsanity.com/paper/2203.13209/) (2022)
- [JSEEGraph: Joint Structured Event Extraction as Graph Parsing](https://mlsanity.com/paper/2306.14633/) (2023)
- [Retrieval-Augmented Semantic Parsing: Improving Generalization with Lexical Knowledge](https://mlsanity.com/paper/2412.10207/) (2024)
- [EventGraph at CASE 2021 Task 1: A General Graph-based Approach to Protest Event Extraction](https://mlsanity.com/paper/2210.09770/) (2022)
- [Structured Sentiment Analysis as Transition-based Dependency Graph Parsing](https://mlsanity.com/paper/2305.05311/) (2023)
- [Self-Attentive Constituency Parsing for UCCA-based Semantic Parsing](https://mlsanity.com/paper/2110.00621/) (2021)
- [SETUP: Sentence-level English-To-Uniform Meaning Representation Parser](https://mlsanity.com/paper/2512.07068/) (2025)
- [Prague Dependency Treebank -- Consolidated 2.0: Enriching a Complex Annotation Scheme](https://mlsanity.com/paper/2606.24324/) (2026)

## Abstract (arXiv)

We present PERIN, a novel permutation-invariant approach to sentence-to-graph semantic parsing. PERIN is a versatile, cross-framework and language independent architecture for universal modeling of semantic structures. Our system participated in the CoNLL 2020 shared task, Cross-Framework Meaning Representation Parsing (MRP 2020), where it was evaluated on five different frameworks (AMR, DRG, EDS, PTG and UCCA) across four languages. PERIN was one of the winners of the shared task. The source code and pretrained models are available at https://github.com/ufal/perin.