3 papers
cs.LG2026
Semi-Supervised Hyperbolic Hierarchical Clustering with Set-Level Structural Priors
Junjing Zheng, Xinyu Zhang, Xiangfeng Qiu +2
Semi-supervised hierarchical clustering aims to learn a tree structure consistent with data patterns and user-provided supervision. Supervision is usually given as leaf-level relat…
cs.LG2024
Orientation-Aware Sparse Tensor PCA for Efficient Unsupervised Feature Selection
Junjing Zheng, Xinyu Zhang, Weidong Jiang +2
Recently, introducing Tensor Decomposition (TD) techniques into unsupervised feature selection (UFS) has been an emerging research topic. A tensor structure is beneficial for minin…
eess.SP2024
Worst-Case Riemannian Optimization with Uncertain Target Steering Vector for Slow-Time Transmit Sequence of Cognitive Radar
Xinyu Zhang, Weidong Jiang, Xiangfeng Qiu +1
Optimization of slow-time transmit sequence endows cognitive radar with the ability to suppress strong clutter in the range-Doppler domain. However, in practice, inaccurate target…