Papers by Abelardo Carlos Martínez Lorenzo
Incorporating Graph Information in Transformer-based AMR Parsing (2023.findings-acl)
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| Challenge: | Abstract Meaning Representation (AMR) is a semantic graph abstraction for text representations. |
| Approach: | They propose a model and method that incorporates graph information into the learned representations of AMR by word-to-node alignment. |
| Outcome: | The proposed model improves AMR parsing performance by embedding graph information into the encoder at training time. |
AMRs Assemble! Learning to Ensemble with Autoregressive Models for AMR Parsing (2023.acl-short)
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| Challenge: | et al., 2013) examines the current state-of-the-art in AMR parsing . current models violate structural constraints, but they can corrupt graphs . |
| Approach: | They propose two new ensemble strategies to improve AMR parsing robustness and reduce computational time. |
| Outcome: | The proposed methods improve robustness to structural constraints while reducing computational time. |
Cross-lingual AMR Aligner: Paying Attention to Cross-Attention (2023.findings-acl)
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| Challenge: | Abstract Meaning Representation (AMR) graphs embed the semantics of a sentence in a directed acyclic graph, where concepts are represented by nodes, semantic relations between concepts by edges, and the co-references by reentrant nodes. |
| Approach: | They propose a novel aligner for Abstract Meaning Representation graphs that scales cross-lingually and can align units and spans in sentences of different languages. |
| Outcome: | The proposed aligner achieves state-of-the-art in the benchmarks and can scale cross-lingually. |
Fully-Semantic Parsing and Generation: the BabelNet Meaning Representation (2022.acl-long)
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| Challenge: | Abstract Meaning Representation (AMR) is the most popular formalism for Semantic Parsing. |
| Approach: | They propose a language-independent representation of meaning using BabelNet and VerbAtlas. |
| Outcome: | The proposed framework outperforms existing frameworks thanks to fully-semantic framing, the authors show . the proposed dataset is labeled entirely according to the proposed framework, and is available on github. |