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Discovery of statistical equivalence classes using computer algebra
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Görgen, Christiane, Bigatti, Anna, Riccomagno, Eva and Smith, J. Q. (2018) Discovery of statistical equivalence classes using computer algebra. International Journal of Approximate Reasoning, 95 . pp. 167-184. doi:10.1016/j.ijar.2018.01.003 ISSN 0888-613X.
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Official URL: http://dx.doi.org/10.1016/j.ijar.2018.01.003
Abstract
Discrete statistical models supported on labeled event trees can be specified using so-called interpolating polynomials which are generalizations of generating functions. These admit a nested representation which is a notion formalized in this paper. A new algorithm exploits the primary decomposition of monomial ideals associated with an interpolating polynomial to quickly compute all nested representations of that polynomial. It hereby determines an important subclass of all trees representing the same statistical model. To illustrate this method we analyze the full polynomial equivalence class of a staged tree representing the best fitting model inferred from a real-world dataset.
Item Type: | Journal Article | ||||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Statistics | ||||||||||
Journal or Publication Title: | International Journal of Approximate Reasoning | ||||||||||
Publisher: | Elsevier | ||||||||||
ISSN: | 0888-613X | ||||||||||
Official Date: | April 2018 | ||||||||||
Dates: |
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Volume: | 95 | ||||||||||
Page Range: | pp. 167-184 | ||||||||||
DOI: | 10.1016/j.ijar.2018.01.003 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Restricted or Subscription Access |
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