no code implementations • 12 Apr 2024 • Jingxin Zhang, Uzair Bin Tahir, Richard Manasseh
The reactive Power Take Off (PTO) force is the key to maximizing mechanical power absorption and electric power generation of Wave Energy Converters (WECs) from ocean waves with variable frequency, but its study is limited due to its difficulty in physical realization.
no code implementations • 26 Jul 2023 • Jingxin Zhang, Jiawei Xi, Peixing Li, Ray C. C. Cheung, Alex M. H. Wong, Jensen Li
Enabled by the tunability of a programmable metasurface, large sets of experimental data in various configurations can be collected for DNN training.
no code implementations • 3 Feb 2023 • Mengxuan Li, Peng Peng, Jingxin Zhang, Hongwei Wang, Weiming Shen
The comprehensive results demonstrate that the proposed SCCAM method can achieve better performance compared with the state-of-the-art methods on fault classification and root cause analysis.
no code implementations • 23 Feb 2022 • Jingxin Zhang, Donghua Zhou, Maoyin Chen, Xia Hong
In this paper, a novel multimode dynamic process monitoring approach is proposed by extending elastic weight consolidation (EWC) to probabilistic slow feature analysis (PSFA) in order to extract multimode slow features for online monitoring.
no code implementations • 18 Aug 2021 • Jinhua Guo, Hao Chen, Jingxin Zhang, Sheng Chen
For structure parameters, the kernel dictionary is selected by some sparsification techniques with online selective modeling criteria, and moreover the kernel covariance matrix is intermittently optimized in the light of the covariance matrix adaptation evolution strategy (CMA-ES).
no code implementations • 7 Aug 2021 • Jingxin Zhang, Donghua Zhou, Maoyin Chen
This paper proposes a novel sparse principal component analysis algorithm with self-learning ability for successive modes, where synaptic intelligence is employed to measure the importance of variables and a regularization term is added to preserve the learned knowledge of previous modes.
no code implementations • 4 Mar 2021 • Shiyao Guo, Yuxia Sheng, Shenpeng Li, Li Chai, Jingxin Zhang
To reduce the reconstruction error and the sensitivity to iteration number, we present a general class of multi-kernel matrices and two regularizers consisting of kernel image dictionary and kernel image Laplacian quatradic, and use them to derive the single-kernel regularized EM and multi-kernel regularized EM algorithms for PET image reconstruction.
no code implementations • 21 Jan 2021 • Jingxin Zhang, Donghua Zhou, Maoyin Chen
In this paper, recursive cointegration analysis (RCA) is first proposed to distinguish the real faults from normal systems changes, where the model is updated once a new normal sample arrives and can adapt to slow change of cointegration relationship.
no code implementations • 13 Dec 2020 • Jingxin Zhang, Donghua Zhou, Maoyin Chen
The computational complexity and key parameters are discussed to further understand the relationship between PCA and the proposed algorithm.
no code implementations • 13 Dec 2020 • Jingxin Zhang, Maoyin Chen, Hao Chen, Xia Hong, Donghua Zhou
By integrating two powerful methods of density reduction and intrinsic dimensionality estimation, a new data-driven method, referred to as OLPP-MLE (orthogonal locality preserving projection-maximum likelihood estimation), is introduced for process monitoring.
no code implementations • 12 Dec 2020 • Jingxin Zhang, Hao Chen, Songhang Chen, Xia Hong
To realize this purpose, the technique of a mixture of probabilistic principal component analysers is utilized to establish the model of the underlying nonlinear process with local PPCA models, where a novel composite monitoring statistic is proposed based on the integration of two monitoring statistics in modified PPCA-based fault detection approach.
no code implementations • 22 Aug 2015 • Mehdi Korki, Hadi Zayyani, Jingxin Zhang
The Block-BHTA comprises the detection and recovery of the supports, and the estimation of the amplitudes of the block sparse signal.
no code implementations • 7 Dec 2014 • Mehdi Korki, Jingxin Zhang, Cishen Zhang, Hadi Zayyani
Unlike the existing algorithms for block sparse signal recovery which assume the cluster structure of the nonzero elements of the unknown signal to be independent and identically distributed (i. i. d.
no code implementations • 21 Jul 2014 • Kamlesh Pawar, Gary F. Egan, Jingxin Zhang
In CS-MRI, the randomly under-sampled Fourier matrix is used as the measurement matrix and the wavelet transform is usually used as sparsifying transform matrix.