Papers by Luigi Procopio
SGL: Speaking the Graph Languages of Semantic Parsing via Multilingual Translation (2021.naacl-main)
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| Challenge: | Graph-based semantic parsing is one of the most promising general-purpose meaning representations . owing to this heterogeneity, most research focused on solutions specific to a given formalism . |
| Approach: | They propose a multilingual neural machine translation framework for Graph-based semantic parsing . they propose Graph2seq architecture that trains with an MNMT objective . |
| Outcome: | The proposed framework outperforms all competitors on cross-lingual parsing tasks. |
ConSeC: Word Sense Disambiguation as Continuous Sense Comprehension (2021.emnlp-main)
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| Challenge: | Existing systems for word Sense Disambiguation assume that each word can be disambiguated individually . a novel approach to WSD is proposed to address this limitation . |
| Approach: | They propose a supervised semantics-based approach to Word Sense Disambiguation that takes into account the senses assigned to nearby words. |
| Outcome: | The proposed approach surpasses all its competitors and sets a new state of the art on English WSD. |
ExtEnD: Extractive Entity Disambiguation (2022.acl-long)
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| Challenge: | Entity disambiguation (ED) is a task in natural language processing that requires a large pre-trained language model to perform. |
| Approach: | They propose a local formulation for Entity Disambiguation (ED) that frames this task as a text extraction problem and propose two Transformer-based architectures that implement it. |
| Outcome: | The proposed model outperforms all its competitors in terms of data efficiency and raw performance on 4 out of 4 benchmarks. |
MOSAICo: a Multilingual Open-text Semantically Annotated Interlinked Corpus (2024.naacl-long)
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Simone Conia, Edoardo Barba, Abelardo Carlos Martinez Lorenzo, Pere-Lluís Huguet Cabot, Riccardo Orlando, Luigi Procopio, Roberto Navigli
| Challenge: | Existing approaches to integrate semantics into Natural Language Understanding (NLP) systems are cost-effective and environmental impact-related. |
| Approach: | They propose to provide semantically-annotated corpora for four NLU tasks across five languages and to drop the requirement of closed datasets. |
| Outcome: | The proposed model provides hundreds of millions of silver yet high-quality annotations for four NLU tasks across five languages. |
Entity Disambiguation with Entity Definitions (2023.eacl-main)
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| Challenge: | Entity Disambiguation (ED) is a crucial problem in Natural Language Processing (NLP). |
| Approach: | They propose to use Wikipedia titles as the textual representation of each candidate to improve the generalization capability over unseen patterns. |
| Outcome: | The proposed model improves on 2 out of 6 benchmarks and is generalized over unseen patterns. |
Word Sense Linking: Disambiguating Outside the Sandbox (2024.findings-acl)
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| Challenge: | Word Sense Disambiguation (WSD) systems have performed well on several evaluation benchmarks, but it still struggles to find downstream applications. |
| Approach: | They propose a task where systems have to identify which spans to disambiguate and link them to their most suitable meaning. |
| Outcome: | The proposed task performs above the estimated inter-annotator agreement on a set of words . the proposed system is based on 'transformer-based' architectures and iteratively relaxes the assumptions . |