Gonçalo Correia
2025
Explainable ICD Coding via Entity Linking
Leonor Barreiros
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Isabel Coutinho
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Gonçalo Correia
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Bruno Martins
Proceedings of the Second Workshop on Patient-Oriented Language Processing (CL4Health)
Clinical coding is a critical task in healthcare, although traditional methods for automating clinical coding may not provide sufficient explicit evidence for coders in production environments. This evidence is crucial, as medical coders have to make sure there exists at least one explicit passage in the input health record that justifies the attribution of a code. We therefore propose to reframe the task as an entity linking problem, in which each document is annotated with its set of codes and respective textual evidence, enabling better human-machine collaboration. By leveraging parameter-efficient fine-tuning of Large Language Models (LLMs), together with constrained decoding, we introduce three approaches to solve this problem that prove effective at disambiguating clinical mentions and that perform well in few-shot scenarios.
2023
Supervising the Centroid Baseline for Extractive Multi-Document Summarization
Simão Gonçalves
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Gonçalo Correia
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Diogo Pernes
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Afonso Mendes
Proceedings of the 4th New Frontiers in Summarization Workshop
The centroid method is a simple approach for extractive multi-document summarization and many improvements to its pipeline have been proposed. We further refine it by adding a beam search process to the sentence selection and also a centroid estimation attention model that leads to improved results. We demonstrate this in several multi-document summarization datasets, including in a multilingual scenario.
2022
DeepSPIN: Deep Structured Prediction for Natural Language Processing
André F. T. Martins
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Ben Peters
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Chrysoula Zerva
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Chunchuan Lyu
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Gonçalo Correia
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Marcos Treviso
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Pedro Martins
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Tsvetomila Mihaylova
Proceedings of the 23rd Annual Conference of the European Association for Machine Translation
DeepSPIN is a research project funded by the European Research Council (ERC) whose goal is to develop new neural structured prediction methods, models, and algorithms for improving the quality, interpretability, and data-efficiency of natural language processing (NLP) systems, with special emphasis on machine translation and quality estimation. We describe in this paper the latest findings from this project.