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math.OC2024
Unsupervised Feature Selection via Nonnegative Orthogonal Constrained Regularized Minimization
Yan Li, Defeng Sun, Liping Zhang
Unsupervised feature selection has drawn wide attention in the era of big data since it is a primary technique for dimensionality reduction. However, many existing unsupervised fea…
math.OC2024
Low-rank quaternion tensor completion for color video inpainting via a novel factorization strategy
Zhenzhi Qin, Zhenyu Ming, Defeng Sun +1
Recently, a quaternion tensor product named Qt-product was proposed, and then the singular value decomposition and the rank of a third-order quaternion tensor were given. From a mo…
math.OC2024
Efficient Online Prediction for High-Dimensional Time Series via Joint Tensor Tucker Decomposition
Zhenting Luan, Defeng Sun, Haoning Wang +1
Real-time prediction plays a vital role in various control systems, such as traffic congestion control and wireless channel resource allocation. In these scenarios, the predictor u…