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When the dynamical data of a system only convey dynamic information over a limited operating range, the identification of models with good performance over a wider operating range is very unlikely. Nevertheless, models with such…

系统与控制 · 电气工程与系统科学 2020-09-07 Leandro Freitas , Bruno H. G. Barbosa , Luis A. Aguirre

The performance of fault diagnosis systems is highly affected by data quality in cyber-physical power systems. These systems generate massive amounts of data that overburden the system with excessive computational costs. Another issue is…

机器学习 · 计算机科学 2024-09-04 Hossein Hassani , Ehsan Hallaji , Roozbeh Razavi-Far , Mehrdad Saif

This paper presents a methodology for model based robust fault diagnosis and a methodology for input design to obtain optimal diagnosis of faults. The proposed algorithm is suitable for real time implementation. Issues of robustness are…

系统与控制 · 计算机科学 2020-01-16 Dhruv Khandelwal , Siep Weiland , Amol Khalate

An important initial step in fault detection for complex industrial systems is gaining an understanding of their health condition. Subsequently, continuous monitoring of this health condition becomes crucial to observe its evolution, track…

系统与控制 · 电气工程与系统科学 2023-11-09 Chi-Ching Hsu , Gaetan Frusque , Olga Fink

The monitoring of machine conditions in a plant is crucial for production in manufacturing. A sudden failure of a machine can stop production and cause a loss of revenue. The vibration signal of a machine is a good indicator of its…

信号处理 · 电气工程与系统科学 2024-07-25 Bagus Tris Atmaja , Haris Ihsannur , Suyanto , Dhany Arifianto

Imperfect labels are ubiquitous in real-world datasets and seriously harm the model performance. Several recent effective methods for handling noisy labels have two key steps: 1) dividing samples into cleanly labeled and wrongly labeled…

计算机视觉与模式识别 · 计算机科学 2022-02-01 Wenkai Chen , Chuang Zhu , Yi Chen , Mengting Li , Tiejun Huang

This paper proposes an expressive singing voice synthesis system by introducing explicit vibrato modeling and latent energy representation. Vibrato is essential to the naturalness of synthesized sound, due to the inherent characteristics of…

声音 · 计算机科学 2022-11-03 Yingjie Song , Wei Song , Wei Zhang , Zhengchen Zhang , Dan Zeng , Zhi Liu , Yang Yu

The fusion of multiple sensor modalities, especially through deep learning architectures, has been an active area of study. However, an under-explored aspect of such work is whether the methods can be robust to degradations across their…

计算机视觉与模式识别 · 计算机科学 2020-03-05 Junjiao Tian , Wesley Cheung , Nathan Glaser , Yen-Cheng Liu , Zsolt Kira

Recently, the underlying mechanism for successful deep learning (DL) was presented based on a quantitative method that measures the quality of a single filter in each layer of a DL model, particularly VGG-16 trained on CIFAR-10. This method…

计算机视觉与模式识别 · 计算机科学 2024-03-13 Yuval Meir , Yarden Tzach , Shiri Hodassman , Ofek Tevet , Ido Kanter

Class imbalance is a major problem in many real world classification tasks. Due to the imbalance in the number of samples, the support vector machine (SVM) classifier gets biased toward the majority class. Furthermore, these samples are…

机器学习 · 计算机科学 2023-09-29 M. Tanveer , Ritik Mishra , Bharat Richhariya

Defects are ubiquitous in solids and strongly influence materials' mechanical and functional properties. However, non-destructive characterization and quantification of defects, especially when multiple types coexist, remain a long-standing…

Sparse identification of nonlinear dynamics (SINDy) has been widely used to discover the governing equations of a dynamical system from data. It uses sparse regression techniques to identify parsimonious models of unknown systems from a…

统计方法学 · 统计学 2026-04-07 Kairui Ding

Computer-aided diagnosis systems must make critical decisions from medical images that are often noisy, ambiguous, or conflicting, yet today's models are trained on overly simplistic labels that ignore diagnostic uncertainty. One-hot labels…

计算机视觉与模式识别 · 计算机科学 2025-09-16 Ang Nan Gu , Michael Tsang , Hooman Vaseli , Purang Abolmaesumi , Teresa Tsang

This paper addresses the problem of robust process and sensor fault reconstruction for nonlinear systems. The proposed method augments the system dynamics with an approximated internal linear model of the combined contribution of known…

系统与控制 · 电气工程与系统科学 2023-04-12 Farhad Ghanipoor , Carlos Murguia , Peyman Mohajerin Esfahani , Nathan van de Wouw

The use of seismic waves to explore the subsurface underlying the ground is a widely used method in the oil industry, since different kinds of the rocks and mediums have different reflection rate of the seismic waves, so the amplitude of…

地球物理 · 物理学 2024-07-23 Yuyang Wang

Thanks to novel, powerful brain activity recording techniques, we can create data-driven models from thousands of recording channels and large portions of the cortex, which can improve our understanding of brain-states neuromodulation and…

This paper studies the problem of fault detection and estimation (FDE) for linear time-invariant (LTI) systems with a particular focus on frequency content information of faults, possibly as multiple disjoint continuum ranges, and under…

系统与控制 · 电气工程与系统科学 2024-10-02 Jingwei Dong , Kaikai Pan , Sergio Pequito , Peyman Mohajerin Esfahani

In order to achieve faster and more robust convergence (especially under noisy working environments), a sliding mode theory-based learning algorithm has been proposed to tune both the premise and consequent parts of type-2 fuzzy neural…

系统与控制 · 电气工程与系统科学 2021-04-06 Erkan Kayacan , Erdal Kayacan , Mojtaba Ahmadieh Khanesar

Lung nodule classification is a class imbalanced problem because nodules are found with much lower frequency than non-nodules. In the class imbalanced problem, conventional classifiers tend to be overwhelmed by the majority class and ignore…

计算机视觉与模式识别 · 计算机科学 2017-03-22 Masaharu Sakamoto , Hiroki Nakano , Kun Zhao , Taro Sekiyama

Clustering techniques have been proved highly suc-cessful for Takagi-Sugeno (T-S) fuzzy model identification. Inparticular, fuzzyc-regression clustering based on type-2 fuzzyset has been shown the remarkable results on non-sparse databut…

人工智能 · 计算机科学 2020-09-03 Vikas Singh , Homanga Bharadhwaj , Nishchal K Verma