Finite Mixture Model of Nonparametric Density Estimation using Sampling Importance Resampling for Persistence Landscape
This work addresses computational topology challenges in topological data analysis, offering incremental improvements for researchers in that domain.
The paper tackles the problem of analyzing persistence landscapes from parametrized curves by proposing a finite mixture model (FMMPL) with a nonparametric approach for computing integrated mean square error (IMSE), resulting in improved accuracy over alternative methods and reduced space complexity compared to simple sampling.
Considering the creation of persistence landscape on a parametrized curve and structure of sampling, there exists a random process for which a finite mixture model of persistence landscape (FMMPL) can provide a better description for a given dataset. In this paper, a nonparametric approach for computing integrated mean of square error (IMSE) in persistence landscape has been presented. As a result, FMMPL is more accurate than the another way. Also, the sampling importance resampling (SIR) has been presented a better description of important landmark from parametrized curve. The result, provides more accuracy and less space complexity than the landmarks selected with simple sampling.