Encontrados 5 documentos, a visualizar página 1 de 1
Interaction between two co-occurring fungi present in chestnut orchards
Baptista, Paula; Pereira, Eric; Malheiro, Ricardo; Pinho, Paula Guedes de; Tavares, R. M.; Neto, T. LinoHypholoma fasciculare is a wood-decaying basidiomycete with a worldwide distribution, including tropical, temperate and boreal forest ecosystems. In Trás-os-Montes region (Northeast of Portugal) this species is commonly present in soils of several habitats, including chestnut and oak tree forests. The ectomycorrhizal fungus Pisolithus tinctorius is another species with high occurrence in those ecosystems. The p...
Classification of olive cultivars using artificial neural networks
Peres, António M.; Baptista, Paula; Malheiro, Ricardo; Dias, L.G.; Bento, Albino; Pereira, J.A.Olive fruit classification according to their cultivar is of major importance to guarantee varietal authenticity. Usually, non-supervised or supervised statistical tools (such as Principal Component Analysis or Linear Discriminant Analysis, respectively) are used for this purpose, based on several physico-chemical data, namely table olive fatty acids profiles, dietary fiber, sugar, organic acids and mineral nut...
Classification of Recorded Classical Music: a Methodology and a Comparative Study
Malheiro, Ricardo; Paiva, R. P.; Mendes, A. J.; Mendes, T.; Cardoso, A.As a result of recent technological innovations, there has been a tremendous growth in the Electronic Music Distribution industry. Consequently, tasks such as automatic music genre classification address new and exciting research challenges. Automatic music genre recognition involves issues like feature extraction and development of classifiers using the obtained features. We use the number of zero crossings, l...
A prototype for classification of classical music using neural networks
Malheiro, Ricardo; Paiva, R. P.; Mendes, A. J.; Mendes, T.; Cardoso, A.As a result of recent technological innovations, there has been a tremendous growth in the Electronic Music Distribution industry. In this way, tasks such us automatic music genre classification address new and exciting research challenges. Automatic music genre recognition involves issues like feature extraction and development of classifiers using the obtained features. As for feature extraction, we use featu...
Sistemas de classificação musical com redes neuronais
Malheiro, Ricardo; Paiva, Rui Pedro; Mendes, António José; Mendes, Teresa; Cardoso, AmílcarComo resultado da evolução e inovação tecnológicas, a indústria da distribuição electrónica de música tem tido um enorme crescimento. Desta forma, tarefas como a classificação automática de géneros musicais tornam-se um forte motivo para o incremento da investigação na área. O reconhecimento automático de géneros musicais envolve tarefas como a extracção de características das músicas e o desenvolvimento de cla...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||