Aplicações de processamento automático de fala

3 Abril 2025, 14:30 • Eugénio Ribeiro

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Legendagem automática.

Introdução ao processamento automático de língua falada

3 Abril 2025, 13:00 • Eugénio Ribeiro

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Fonética e processamento de sinal.

Mini-teste 1

27 Março 2025, 14:30 • Eugénio Ribeiro

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Realização do primeiro mini-teste.

Apresentação por um convidado

27 Março 2025, 13:00 • Ricardo Daniel Santos Faro Marques Ribeiro

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[ Subject ]

STRING, a Hybrid Statistical and Rule-Based Natural Language Processing Chain for Portuguese, has a modular structure and performs all basic text processing tasks, namely:

• tokenization and text segmentation;
• part-of-speech tagging;
• morphosyntactic disambiguation;
• shallow parsing (chunking); and,
• deep parsing (dependency extraction)

Throughout the presentation, examples that illustrate how STRING performs complex NLP tasks will be presented. The discussion also covers ongoing and future work aimed at improving the system, including better integration of statistical information and refining temporal expression classification. Ultimately, the goal is to create the most effective NLP parsing system for the Portuguese language.

[ Biography ]

Nuno Mamede graduated in Electrotechnical and Computers Engineering by the Instituto Superior Técnico (IST), Lisbon, in 1981, and received his MSc and PhD degrees in Electrotechnic and Computers Engineering, from the same University in 1985 and 1992, respectively. In 1982 he started as lecturer and since 2006 he holds a position of Associate Professor in Instituto Superior Técnico, where he has taught Digital Systems, Object Oriented Programming, Programming Languages, knowledge representation, Natural Language Processing, and was the director of LEIC between 2009 and 2024. He has been a researcher at INESC-ID Lisboa, in Lisbon, since its creation in 1980. He participated in the foundation of L2F where hold a position in the Executive Board. His activities have been in the areas of Written Natural Language Processing, namely on Syntactic Processing, Named Entity Recognition, and Natural Language Interfaces to Data Bases. He has authored a significant number of scientific papers. He is a member of AAAI, ACM and ACL.

Exercícios

20 Março 2025, 14:30 • Ricardo Daniel Santos Faro Marques Ribeiro

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Resolução de um problema que exige