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Shikang Liu

8 accepted papers

2026

Fault Diagnosis of Irregular Sequences by Adjoint Learning in Continuous-Time Model Space

AAAI 2026technical

Fault Diagnosis (FD) on sequential data suffers from irregular sampling (with missing values), limited training data, and varying underlying environments. In response, this paper proposes FD by adjoint learning in continuous-time model space. Model-Space Learning employs well-fitted models that capt

Cited by 0SourcePDFScholar
2026

SVGL: Scale-Variable Graph Learning in Model Space for Multivariate Time Series Classification

AAAI 2026technical

Multivariate time series classification (MTSC) has broad applications in numerous domains. Existing MTSC methods typically focus on either temporal dynamics or variable interactions of the data, often overlooking cross-scale couplings among different variables. To bridge this gap, we propose Scale-V

Cited by 0SourcePDFScholar
2025

Inside and Inside: Efficient Anomaly Detection by Fully Capturing the Detailed Dynamics

ICASSP 2025accepted

Anomaly detection in sequential signals is gaining prominence, especially with limited training data and timeliness requirements. Fully extracting the data-inside changing information, we propose a novel Wavelet-Enhanced Reservoir Computing framework (WE-Res). Our framework uses Discrete Wavelet Tra…

Cited by 0SourceScholar
2025

Learning in the Model Space: Fault Diagnosis by Co-objective Learning in DynInt Model Space

ICASSP 2025accepted

Fault Diagnosis (FD) in time-varying systems faces challenges like limited training data, varying environments, and timeliness. Building upon the framework of model-space learning (MSL), we introduce co-objective learning in Dynamic-Integration network (DynInt) model space as a solution for FD. MSL…

Cited by 0SourceScholar
2025

Spectral-Aware Reservoir Computing for Fast and Accurate Time Series Classification

ICML 2025poster

Analyzing inherent temporal dynamics is a critical pathway for time series classification, where Reservoir Computing (RC) exhibits effectiveness and high efficiency. However, typical RC considers recursive updates from adjacent states, struggling with long-term dependencies. In response, this paper…

Cited by 0SourcePDFScholar
2025

Underground Diagnosis in 3D GPR Data by Learning in CuCoRes Model Space

IJCAI 2025

Ground Penetrating Radar (GPR) provides detailed subterranean insights. Nevertheless, underground diagnosis via GPR is hindered by the fact that training data typically contain only normal samples, along with the complexity of GPR data’s wave-collection characteristics. This paper proposes subsurfac

Cited by 0SourcePDFScholar
2024

Learning in CubeRes Model Space for Anomaly Detection in 3D GPR Data

IJCAI 2024poster

Three-dimensional Ground Penetrating Radar (3D GPR) data offer comprehensive views of the subsurface, yet identifying and classifying underground anomalies from this data is challenging due to limitations like scarce training data and variable underground environments. In response, we introduce lear…

Cited by 1SourcePDFScholar