arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2104.07072cs.LG
收藏

用于语音情感识别的无监督低秩表示

Unsupervised low-rank representations for speech emotion recognition

National Technical University of Athens(雅典国家技术大学);Behavioral Signal Technologies(行为信号技术公司);University of Illinois at Urbana-Champaign(伊利诺伊大学厄巴纳-香槟分校)

Georgios Paraskevopoulos, Efthymios Tzinis, Nikolaos Ellinas, Theodoros Giannakopoulos, Alexandros Potamianos

摘要:

我们研究使用线性和非线性降维算法提取语音情感识别的低秩特征表示。使用两个特征集,一个基于低级描述符及其聚合(IS 10),一个基于语音的递归动态建模(RQA),以及它们的融合。我们报告语音情感识别(SER)的结果,学习表示两个数据库使用不同的分类方法。使用低维表示的分类在各种设置中产生性能改进。这表明,降维是一种有效的方式来对抗维数灾难的SER。可视化的功能在两个维度上提供了洞察减少的功能集的区分能力。

英文摘要:

We examine the use of linear and non-linear dimensionality reduction algorithms for extracting low-rank feature representations for speech emotion recognition. Two feature sets are used, one based on low-level descriptors and their aggregations (IS10) and one modeling recurrence dynamics of speech (RQA), as well as their fusion. We report speech emotion recognition (SER) results for learned representations on two databases using different classification methods. Classification with low-dimensional representations yields performance improvement in a variety of settings. This indicates that dimensionality reduction is an effective way to combat the curse of dimensionality for SER. Visualization of features in two dimensions provides insight into discriminatory abilities of reduced feature sets.

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。

↑