线性复杂性多视图无监督的特征选择通过基特征关系构建
概括
本研究引入了一种新的多视图无监督特征选择方法,使用基于的策略和特征双边图. 它显著降低了复杂性,实现了线性时间和空间复杂性,以有效地提取特征重要性.
科学领域:
- 机器学习 机器学习
- 数据挖掘 数据挖掘
- 计算机科学 计算机科学
背景情况:
- 多视图无监督特征选择方法通常集中在样本关系上,忽视关键特征关系.
- 在构建完整的特征图表时,现有的方法面临着高计算复杂性 (O{\displaystyle O} d^2或更高).
- 需要有效的方法来直接从特征图中提取特征的重要性.
研究的目的:
- 开发一种新的多视图无监督特征选择算法,并降低了复杂度.
- 引入一个以为基础的策略,并为高效的特征关系建模提供特征两方图形.
- 设计一种低复杂度的方法,从特征二分位图中直接提取特征重要性.
主要方法:
- 基于的策略和特征的双部分图形构建被采用以减少复杂性.
- 提出了一种新的方法,可以直接从特征二分位图中获得特征得分,从而将时间复杂性从O{\displaystyle \mathbb {O} d^3} 减少到O{\displaystyle \mathbb {O} d^3} .
- 自我表达的多视图子空间学习以自适应的方式学习特征级图结构,捕捉特征关系和多视图一致性.
主要成果:
- 拟议的方法实现了O (n) 的空间和时间复杂性,比现有的方法有了显著的改进.
- 图像和生物数据集的实验结果表明,与七种最先进的方法相比,拟议的算法具有优越性.
- 该方法有效地捕获特征和之间的结构信息,以及跨视图的一致性和互补信息.
结论:
- 拟议的算法为多视图无监督特征选择提供了高效和有效的解决方案.
- 基于的策略和特征双部分图的方法显著降低了计算复杂性.
- 这项工作代表了多视图无监督特征选择领域的新贡献,对处理大型数据集有实际意义.
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