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- W3037304346 abstract "We consider the task of learning the maximum-likelihood polytree from data. Our first result is a performance guarantee establishing that the optimal branching (or Chow-Liu tree), which can be computed very easily, constitutes a good approximation to the best polytree. We then show that it is not possible to do very much better, since the learning problem is NP-hard even to approximately solve within some constant factor." @default.
- W3037304346 created "2020-07-02" @default.
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- W3037304346 date "2013-01-23" @default.
- W3037304346 modified "2023-09-27" @default.
- W3037304346 title "Learning Polytrees" @default.
- W3037304346 hasPublicationYear "2013" @default.
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