Metrics of graph Laplacian eigenvectors
Metrics of graph Laplacian eigenvectors
复制标题
图拉普拉斯特征向量的度量
DOI:
10.1117/12.2528644
复制
发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Saito, Naoki
中科院分区:
文献类型:
--
作者:
Li, Haotian;Saito, Naoki
The application of graph Laplacian eigenvectors has been quite popular in the graph signal processing field: one can use them as ingredients to design smooth multiscale basis. Our long-term goal is to study and understand the dual geometry of graph Laplacian eigenvectors. In order to do that, it is necessary to define a certain metric to measure the behavioral differences between each pair of the eigenvectors. Saito (2018) considered the ramified optimal transportation (ROT) cost between the square of the eigenvectors as such a metric. Clonginger and Steinerberger (2018) proposed a way to measure the affinity (or ‘similarity’) between the eigenvectors based on their Hadamard (HAD) product. In this article, we propose a simplified ROT metric that is more computational efficient and introduce two more ways to define the distance between the eigenvectors, i.e., the time-stepping diffusion (TSD) metric and the difference of absolute gradient (DAG) pseudometric. The TSD metric measures the cost of “flattening” the initial graph signal via diffusion process up to certain time, hence it can be viewed as a time-dependent version of the ROT metric. The DAG pseudometric is the l 2 -distance between the feature vectors derived from the eigenvectors, in particular, the absolute gradients of the eigenvectors. We then compare the performance of ROT, HAD and the two new “metrics” on different kinds of graphs. Finally, we investigate their relationship as well as their pros and cons.
登录
查看更多内容
DOI:
10.1109/ssp.2018.8450808
发表时间:
2018
期刊:
2018 IEEE Statistical Signal Processing Workshop (SSP)
影响因子:
--
作者:
N. Saito
通讯作者:
N. Saito
DOI:
10.1051/m2an/2015028
发表时间:
2015
期刊:
Mathematical Modelling and Numerical Analysis
影响因子:
--
作者:
Qinglan Xia
通讯作者:
Qinglan Xia
DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
S. Nicaise
通讯作者:
S. Nicaise
DOI:
10.1007/978-1-4842-7264-0_1
发表时间:
2021
期刊:
Java on the Raspberry Pi
影响因子:
--
作者:
Greg Flurry
通讯作者:
Greg Flurry
DOI:
10.1016/j.cam.2010.11.003
发表时间:
2011-02-15
影响因子:
2.4
作者:
Birkholz, Harald
通讯作者:
Birkholz, Harald