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Author

Jun-Yu Zhang

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Preprint Sep 2026

On the $\Omega(n)$ SDP relaxation gap for Submodular Box-Constrained Quadratic Programming

Continuous submodular optimization is an important class of nonconvex problems with global guarantees, for which the submodular box-constrained quadratic programming (BCQP) forms a fundamental subclass. It arises naturally as quadratic subproblems of general twice-differentiable submodular problems and also has direct...

Jun-Yu Zhang, Guan-Yi Wang · 0 citations
Aug 2026

Harnessing Multilevel Circulant Matrices for Generalizable Spectral Kernel Learning.

SpectraMancer, which learns kernels directly in the Fourier spectral domain induced by multilevel circulant matrices, thereby enabling generalizable kernel learning for complex data and improves spectrum-aware kernel selection and predictive performance across diverse benchmarks.

Li-Zhong Ding, Jiarun Fu, Qiuning Wei et al. · 0 citations

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