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arXiv 2211.09503cs.SDeess.ASq-bio.QM
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用于昆虫自动识别的声音自适应表示

Adaptive Representations of Sound for Automatic Insect Recognition

Leiden University(莱顿大学);Naturalis Biodiversity Center(Naturalis生物多样性中心)

Marius Faiß

摘要:

昆虫是我们生态系统中不可或缺的一部分。这些通常体积小、行踪不定的动物对周围环境有很大的影响,承担着目前生物多样性和授粉的大部分责任,构成了食物链和许多生物和生态过程的基础。由于人类因素的影响,人口数量和生物多样性随着时间的推移而迅速下降。监测这种下降对有效执行养护措施越来越重要。但监测方法往往是侵入性的,时间和资源密集,并容易出现各种偏见。许多昆虫物种产生特征性的交配声音,可以很容易地检测和记录,而无需大量的成本或努力。使用深度学习方法,可以自动检测和分类来自野外记录的昆虫声音,以监测生物多样性和物种分布范围。在这个项目中,我使用现有的昆虫声音数据集(直翅目和蝉科)和机器学习方法来实现这一点,并评估它们在声学昆虫监测中的潜力。我比较了传统的基于频谱的深度学习方法与新的自适应和基于波形的方法LEAF的性能。通过在训练期间调整其特征提取参数,基于波形的前端比梅尔谱图前端实现了显着更好的分类性能。这一结果对于未来实现用于自动昆虫声音识别的深度学习技术是令人鼓舞的,特别是在更大的数据集可用的情况下。

英文摘要:

Insects are an integral part of our ecosystem. These often small and evasive animals have a big impact on their surroundings, providing a large part of the present biodiversity and pollination duties, forming the foundation of the food chain and many biological and ecological processes. Due to factors of human influence, population numbers and biodiversity have been rapidly declining with time. Monitoring this decline has become increasingly important for conservation measures to be effectively implemented. But monitoring methods are often invasive, time and resource intense, and prone to various biases. Many insect species produce characteristic mating sounds that can easily be detected and recorded without large cost or effort. Using deep learning methods, insect sounds from field recordings could be automatically detected and classified to monitor biodiversity and species distribution ranges. In this project, I implement this using existing datasets of insect sounds (Orthoptera and Cicadidae) and machine learning methods and evaluate their potential for acoustic insect monitoring. I compare the performance of the conventional spectrogram-based deep learning method against the new adaptive and waveform-based approach LEAF. The waveform-based frontend achieved significantly better classification performance than the Mel-spectrogram frontend by adapting its feature extraction parameters during training. This result is encouraging for future implementations of deep learning technology for automatic insect sound recognition, especially if larger datasets become available.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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