Mixtures of Discrete Decomposable Graphical Models
Fuente:
arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866910725554831360 |
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| author | Alexandr, Yulia Coons, Jane Ivy Sturma, Nils |
| author_facet | Alexandr, Yulia Coons, Jane Ivy Sturma, Nils |
| contents | We study mixtures of decomposable graphical models, focusing on their ideals and dimensions. For mixtures of clique stars, we characterize the ideals in terms of ideals of mixtures of independence models. We also give a recursive formula for their ML degrees. Finally, we prove that second secant varieties of all other decomposable graphical models have the expected dimension. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_15950 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Mixtures of Discrete Decomposable Graphical Models Alexandr, Yulia Coons, Jane Ivy Sturma, Nils Statistics Theory Algebraic Geometry Combinatorics We study mixtures of decomposable graphical models, focusing on their ideals and dimensions. For mixtures of clique stars, we characterize the ideals in terms of ideals of mixtures of independence models. We also give a recursive formula for their ML degrees. Finally, we prove that second secant varieties of all other decomposable graphical models have the expected dimension. |
| title | Mixtures of Discrete Decomposable Graphical Models |
| topic | Statistics Theory Algebraic Geometry Combinatorics |
| url | https://arxiv.org/abs/2401.15950 |