Spectral clustering algorithm for the allometric extension model
Fuente:
arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866912390297157632 |
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| author | Kawamoto, Kohei Goto, Yuichi Tsukuda, Koji |
| author_facet | Kawamoto, Kohei Goto, Yuichi Tsukuda, Koji |
| contents | The spectral clustering algorithm is often used as a binary clustering method for unclassified data by applying the principal component analysis. To study theoretical properties of the algorithm, the assumption of conditional homoscedasticity is often supposed in existing studies. However, this assumption is restrictive and often unrealistic in practice. Therefore, in this paper, we consider the allometric extension model, that is, the directions of the first eigenvectors of two covariance matrices and the direction of the difference of two mean vectors coincide, and we provide a non-asymptotic bound of the error probability of the spectral clustering algorithm for the allometric extension model. As a byproduct of the result, we obtain the consistency of the clustering method in high-dimensional settings. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2309_06264 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Spectral clustering algorithm for the allometric extension model Kawamoto, Kohei Goto, Yuichi Tsukuda, Koji Statistics Theory Methodology 62H25, 62H30 The spectral clustering algorithm is often used as a binary clustering method for unclassified data by applying the principal component analysis. To study theoretical properties of the algorithm, the assumption of conditional homoscedasticity is often supposed in existing studies. However, this assumption is restrictive and often unrealistic in practice. Therefore, in this paper, we consider the allometric extension model, that is, the directions of the first eigenvectors of two covariance matrices and the direction of the difference of two mean vectors coincide, and we provide a non-asymptotic bound of the error probability of the spectral clustering algorithm for the allometric extension model. As a byproduct of the result, we obtain the consistency of the clustering method in high-dimensional settings. |
| title | Spectral clustering algorithm for the allometric extension model |
| topic | Statistics Theory Methodology 62H25, 62H30 |
| url | https://arxiv.org/abs/2309.06264 |