arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.00259cs.LGstat.ML
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无特征提取的多变量时间序列监督特征子集选择和特征排序

Supervised Feature Subset Selection and Feature Ranking for Multivariate Time Series without Feature Extraction

NEC Laboratories America(美国NEC实验室)

Shuchu Han, Alexandru Niculescu-Mizil

摘要:

我们介绍了多变量时间序列(MTS)分类的监督特征排序和特征子集选择算法。与大多数现有的监督/无监督MTS的特征选择算法,我们的技术不需要一个特征提取步骤,从时间序列生成一个一维的特征向量。相反,它是基于直接计算单个时间序列之间的相似性,并评估产生的聚类结构与标签的匹配程度。该技术适用于异构MTS数据,其中时间序列测量可能具有不同的采样分辨率,以及多模态数据。

英文摘要:

We introduce supervised feature ranking and feature subset selection algorithms for multivariate time series (MTS) classification. Unlike most existing supervised/unsupervised feature selection algorithms for MTS our techniques do not require a feature extraction step to generate a one-dimensional feature vector from the time series. Instead it is based on directly computing similarity between individual time series and assessing how well the resulting cluster structure matches the labels. The techniques are amenable to heterogeneous MTS data, where the time series measurements may have different sampling resolutions, and to multi-modal data.

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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