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What a transparent Romance language with a Germanic gender-determiner mapping tells us about gender retrieval: Insights from European Portuguese ; Gender processing in European Portuguese
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| 2 |
Linguistic resources for paraphrase generation in Portuguese: a Lexicon-Grammar approach
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In: ISSN: 1574-020X ; EISSN: 1574-0218 ; Language Resources and Evaluation ; https://hal.archives-ouvertes.fr/hal-03548861 ; Language Resources and Evaluation, Springer Verlag, 2022, ⟨10.1007/s10579-021-09561-5⟩ ; https://link.springer.com/article/10.1007/s10579-021-09561-5 (2022)
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| 11 |
A argumentatividade na aula de Português Língua Materna: Uma competência crucial para o desenvolvimento da escrita nos Ensino Básico e Secundário
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| 12 |
Ancient Near Eastern Studies and the Portuguese academia ; a love-affair under construction
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| 14 |
Variation in Spanish/s: Overview and New Perspectives
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In: World Languages and Literatures Faculty Publications and Presentations (2022)
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| 17 |
«Entrevista al Dr. Darío Villanueva, académico de número de la Real Academia Española. "Sin la creación, no existe literatura, pero solo con la creación de textos tampoco hay literatura"» ...
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| 18 |
«Entrevista al Dr. Darío Villanueva, académico de número de la Real Academia Española. "Sin la creación, no existe literatura, pero solo con la creación de textos tampoco hay literatura"» ...
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| 19 |
«Entrevista al doctor Darío Villanueva. “Sin la creación, no existe literatura, pero solo con la creación de textos tampoco hay literatura”» ...
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| 20 |
Exploring Silent Speech Interfaces Based on Frequency-Modulated Continuous-Wave Radar
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In: Sensors; Volume 22; Issue 2; Pages: 649 (2022)
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Abstract:
Speech is our most natural and efficient form of communication and offers a strong potential to improve how we interact with machines. However, speech communication can sometimes be limited by environmental (e.g., ambient noise), contextual (e.g., need for privacy), or health conditions (e.g., laryngectomy), preventing the consideration of audible speech. In this regard, silent speech interfaces (SSI) have been proposed as an alternative, considering technologies that do not require the production of acoustic signals (e.g., electromyography and video). Unfortunately, despite their plentitude, many still face limitations regarding their everyday use, e.g., being intrusive, non-portable, or raising technical (e.g., lighting conditions for video) or privacy concerns. In line with this necessity, this article explores the consideration of contactless continuous-wave radar to assess its potential for SSI development. A corpus of 13 European Portuguese words was acquired for four speakers and three of them enrolled in a second acquisition session, three months later. Regarding the speaker-dependent models, trained and tested with data from each speaker while using 5-fold cross-validation, average accuracies of 84.50% and 88.00% were respectively obtained from Bagging (BAG) and Linear Regression (LR) classifiers, respectively. Additionally, recognition accuracies of 81.79% and 81.80% were also, respectively, achieved for the session and speaker-independent experiments, establishing promising grounds for further exploring this technology towards silent speech recognition.
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Keyword:
continuous-wave radar; European Portuguese; machine learning; silent speech
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URL: https://doi.org/10.3390/s22020649
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