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    Chapter and Conference Paper

    Exploring Portuguese Word Embeddings for Discovering Lexical-Semantic Relations

    Word2vec-like word embeddings are known for kee** linguistic regularities and thus good for solving analogies. Following this, we explore such embeddings for Portuguese in the discovery of lexical-semantic ...

    Tiago Sousa, Ana Alves… in Computational Processing of the Portuguese… (2020)

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    Chapter and Conference Paper

    Leveraging on Semantic Textual Similarity for Develo** a Portuguese Dialogue System

    We describe an IR-based dialogue system that, in order to match user interactions with FAQs on a list, leverages on a model for computing the semantic similarity between two fragments of Portuguese text. It w...

    José Santos, Ana Alves… in Computational Processing of the Portuguese… (2020)

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    Chapter and Conference Paper

    Towards the Improvement of a Topic Model with Semantic Knowledge

    Although typically used in classic topic models, surface words cannot represent meaning on their own. Consequently, redundancy is common in those topics, which may, for instance, include synonyms. To face this...

    Adriana Ferrugento, Ana Alves, Hugo Gonçalo Oliveira… in Progress in Artificial Intelligence (2015)