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Percorrer por autor "Fialho, Pedro"

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  • AIA-BDE: A Corpus of FAQs in Portuguese and their Variations
    Publication . Oliveira, Hugo Gonçalo; Ferreira, João; Santos, José; Fialho, Pedro; Rodrigues, Ricardo; Coheur, Luísa; Alves, Ana
    We present AIA-BDE, a corpus of 380 domain-oriented FAQs in Portuguese and their variations, i.e., paraphrases or entailed questions, created manually, by humans, or automatically, with Google Translate. Its aims to be used as a benchmark for FAQ retrieval and automatic question-answering, but may be useful in other contexts, such as the development of task-oriented dialogue systems, or models for natural language inference in an interrogative context. We also report on two experiments. Matching variations with their original questions was not trivial with a set of unsupervised baselines, especially for manually created variations. Besides high performances obtained with ELMo and BERT embeddings, an Information Retrieval system was surprisingly competitive when considering only the first hit. In the second experiment, text classifiers were trained with the original questions, and tested when assigning each variation to one of three possible sources, or assigning them as out-of-domain. Here, the difference between manual and automatic variations was not so significant.
    2020Documento de conferência Acesso aberto Ver mais
  • Chondrichthyes do Neogénico de Portugal
    Publication . Balbino, Ausenda Cáceres; Fialho, Pedro; Antunes, Miguel Telles; Academia das Ciências de Lisboa
    Portugal possui um registo fóssil notável. Durante décadas, investigadores encontraram milhares de fósseis e identificaram centenas de espécies dos principais grupos taxonómicos. Este trabalho refere-se à literatura científica sobre fósseis de peixes cartilagíneos, colhidos em jazidas fossilíferas do Neogénico português. Foram encontrados dentes, dentículos e espinhos caudais em jazidas do Aquitaniano ao Placenciano (23 Ma a 2.6 Ma). Foram identificadas e estudadas cerca de 105 jazidas no continente e na Ilha de Santa Maria, a maioria das quais desapareceu ou está atualmente inacessível. Até ao momento, deram à estampa noventa e uma espécies de tubarões e raias, onze das quais descritas pela primeira vez em Portugal.
    2025-11-17Texto Acesso aberto Ver mais