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arXiv 2008.06358eess.AScs.SD
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基于师生模型的半监督学习声乐旋律提取

Semi-supervised learning using teacher-student models for vocal melody extraction

Graduate School of Culture Technology, KAIST(韩国科学技术院文化技术研究生院);Institute of Information Science, Academia Sinica(中央研究院资讯科学研究所)

Sangeun Kum, Jing-Hua Lin, Li Su, Juhan Nam

摘要:

缺乏标记数据是许多音乐信息检索任务(如旋律提取)的主要障碍,其中标记非常费力或昂贵。半监督学习(SSL)通过利用大量未标记的数据提供了一种解决方案来缓解这个问题。在本文中,我们提出了一种SSL方法使用师生模型的声乐旋律提取。教师模型使用标记数据进行预训练,并指导学生模型在自训练设置中对未标记的输入进行相同的预测。我们研究了三个设置不同的数据增强方案和损失函数的师生模型。此外,考虑到在测试阶段的标记数据的稀缺性,我们人工生成大规模的测试数据与音高标签从未标记的数据使用的分析-合成方法。结果表明,SSL方法显着提高了仅针对监督学习的性能,并且改进取决于师生模型,未标记数据的大小,自训练迭代次数以及其他训练细节。我们还发现,这是至关重要的,以确保未标记的音频有声乐部分。最后,我们证明了所提出的SSL方法使基线卷积递归神经网络模型能够实现与最先进技术相当的性能。

英文摘要:

The lack of labeled data is a major obstacle in many music information retrieval tasks such as melody extraction, where labeling is extremely laborious or costly. Semi-supervised learning (SSL) provides a solution to alleviate the issue by leveraging a large amount of unlabeled data. In this paper, we propose an SSL method using teacher-student models for vocal melody extraction. The teacher model is pre-trained with labeled data and guides the student model to make identical predictions given unlabeled input in a self-training setting. We examine three setups of teacher-student models with different data augmentation schemes and loss functions. Also, considering the scarcity of labeled data in the test phase, we artificially generate large-scale testing data with pitch labels from unlabeled data using an analysis-synthesis method. The results show that the SSL method significantly increases the performance against supervised learning only and the improvement depends on the teacher-student models, the size of unlabeled data, the number of self-training iterations, and other training details. We also find that it is essential to ensure that the unlabeled audio has vocal parts. Finally, we show that the proposed SSL method enables a baseline convolutional recurrent neural network model to achieve performance comparable to state-of-the-arts.

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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