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Automatic acoustic recognition of pollinating bee species can be highly improved by deep learning models accompanied by pre-training and strong data augmentation
| dc.contributor.author | Siqueira Ferreira, Alef Iury | |
| dc.contributor.author | Felipe da Silva, Nádia Felix | |
| dc.contributor.author | Neiva Mesquita, Fernanda | |
| dc.contributor.author | Couto Rosa, Thierson | |
| dc.contributor.author | Monzón-Godoy, Víctor | |
| dc.contributor.author | Mesquita-Neto, José N. | |
| dc.date.accessioned | 2023-06-14T15:13:59Z | |
| dc.date.available | 2023-06-14T15:13:59Z | |
| dc.date.issued | 2023 | |
| dc.identifier.uri | http://repositorio.ucm.cl/handle/ucm/4857 | |
| dc.description.abstract | Introduction: Bees capable of performing floral sonication (or buzz-pollination) are among the most effective pollinators of blueberries. However, the quality of pollination provided varies greatly among species visiting the flowers. Consequently, the correct identification of flower visitors becomes indispensable to distinguishing the most efficient pollinators of blueberry. However, taxonomic identification normally depends on microscopic characteristics and the active participation of experts in the decision-making process. Moreover, the many species of bees (20,507 worldwide) and other insects are a challenge for a decreasing number of insect taxonomists. To overcome the limitations of traditional taxonomy, automatic classification systems of insects based on Machine-Learning (ML) have been raised for detecting and distinguishing a wide variety of bioacoustic signals, including bee buzzing sounds. Despite that, classical ML algorithms fed by spectrogram-type data only reached marginal performance for bee ID recognition. On the other hand, emerging systems from Deep Learning (DL), especially Convolutional Neural Networks (CNNs), have provided a substantial boost to classification performance in other audio domains, but have yet to be tested for acoustic bee species recognition tasks. Therefore, we aimed to automatically identify blueberry pollinating bee species based on characteristics of their buzzing sounds using DL algorithms. Methods: We designed CNN models combined with Log Mel-Spectrogram representations and strong data augmentation and compared their performance at recognizing blueberry pollinating bee species with the current state-of-the-art models for automatic recognition of bee species. Results and Discussion: We found that CNN models performed better at assigning bee buzzing sounds to their respective taxa than expected by chance. However, CNN models were highly dependent on acoustic data pre-training and data augmentation to outperform classical ML classifiers in recognizing bee buzzing sounds. Under these conditions, the CNN models could lead to automating the taxonomic recognition of flower-visiting bees of blueberry crops. However, there is still room to improve the performance of CNN models by focusing on recording samples for poorly represented bee species. Automatic acoustic recognition associated with the degree of efficiency of a bee species to pollinate a particular crop would result in a comprehensive and powerful tool for recognizing those that best pollinate and increase fruit yields. | es_CL |
| dc.language.iso | en | es_CL |
| dc.rights | Atribución-NoComercial-SinDerivadas 3.0 Chile | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | * |
| dc.source | Frontiers in Plant Science, 14, 1081050 | es_CL |
| dc.subject | Buzz-pollinated crops | es_CL |
| dc.subject | Ecosystem services | es_CL |
| dc.subject | Crop pollination | es_CL |
| dc.subject | Machine-learning | es_CL |
| dc.subject | Blueberry crops | es_CL |
| dc.title | Automatic acoustic recognition of pollinating bee species can be highly improved by deep learning models accompanied by pre-training and strong data augmentation | es_CL |
| dc.type | Article | es_CL |
| dc.ucm.facultad | Facultad de Ciencias Básicas | es_CL |
| dc.ucm.indexacion | Scopus | es_CL |
| dc.ucm.indexacion | Isi | es_CL |
| dc.ucm.uri | frontiersin.org/articles/10.3389/fpls.2023.1081050/full | es_CL |
| dc.ucm.doi | doi.org/10.3389/fpls.2023.1081050 | es_CL |
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