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Truncated Matrix Power Iteration for Differentiable DAG Learning. (arXiv:2208.14571v1 [cs.LG])
Sept. 1, 2022, 1:10 a.m. | Zhen Zhang, Ignavier Ng, Dong Gong, Yuhang Liu, Ehsan M Abbasnejad, Mingming Gong, Kun Zhang, Javen Qinfeng Shi
cs.LG updates on arXiv.org arxiv.org
Recovering underlying Directed Acyclic Graph structures (DAG) from
observational data is highly challenging due to the combinatorial nature of the
DAG-constrained optimization problem. Recently, DAG learning has been cast as a
continuous optimization problem by characterizing the DAG constraint as a
smooth equality one, generally based on polynomials over adjacency matrices.
Existing methods place very small coefficients on high-order polynomial terms
for stabilization, since they argue that large coefficients on the higher-order
terms are harmful due to numeric exploding. On …
More from arxiv.org / cs.LG updates on arXiv.org
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