Engineering, Electrical & Electronic

Article Engineering, Electrical & Electronic

Reliability modeling of wave energy converters based on pelamis technology

Amir Ghaedi, Reza Sedaghati, Mehrdad Mahmoudian, Shahriyar Bazyari

Summary: This paper focuses on the reliability modeling of pelamis, a commercial-scale wave generator. A multi-state reliability model is proposed to address failures of components and changes in power production. The fuzzy c-means clustering methodology is applied to reduce the number of power states in the model. Numerical results demonstrate that wave converters can improve the reliability performance of electric systems, but wave period and height have an impact on the reliability indices of the power system. The effectiveness of the proposed method is validated by comparing with the outcomes obtained by analytical and Sequential Monte Carlo Simulation methods.

ELECTRIC POWER SYSTEMS RESEARCH (2024)

Article Computer Science, Artificial Intelligence

A new proximity metric based on optimality conditions for single and multi-objective optimization: Method and validation

Mohammed Jameel, Mohamed Abouhawwash

Summary: This paper introduces a novel version of Karush-Kuhn-Tucker Proximity Metrics (KKTPM) applicable to single-, multi-, and many-objective optimization problems, along with an approximate approach to reduce computational burden. Extensive computational experiments demonstrate that the proposed metric has lower computational costs compared to other metrics, and it is independent of knowledge of the true Pareto-optimal front and applicable as a termination criterion for evolutionary algorithms.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

Scale-pyramid dynamic atrous convolution for pixel-level labeling

Zhiqiang Li, Jie Jiang, Xi Chen, Min Zhang, Yong Wang, Qingli Li, Honggang Qi, Min Liu, Robert Laganiere

Summary: This paper proposes a scale-pyramid dynamic atrous convolution method (SDAConv), which dynamically arranges filters at dense scales in different semantic areas to improve the performance of deep convolutional neural networks.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

Consistency regularization-based mutual alignment for source-free domain adaptation

Shuai Lu, Zongze Li, Xinyu Zhang, Jingyao Li

Summary: This paper focuses on the scenario of source-free domain adaptation (SFDA) and proposes a consistency regularization-based mutual alignment (CRMA) method. It randomly augments each target sample to increase sample diversity. It leverages the information maximization loss to improve the performance of mutual alignment. It aligns original samples and augmented samples to enhance the model's ability.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

Single domain generalizable and physically interpretable bearing fault diagnosis for unseen working conditions

Iljeok Kim, Sung Wook Kim, Jeongsan Kim, Hyunsuk Huh, Iljoo Jeong, Taegyu Choi, Jeongchan Kim, Seungchul Lee

Summary: State-of-the-art deep learning methods have shown impressive performance in intelligent fault diagnosis of rolling element bearings. However, previous studies have faced challenges such as domain discrepancy and lack of interpretability. This study proposes a single domain generalizable and physically interpretable framework that embeds prior knowledge into the neural network, enabling domain generalization and interpretation.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

An efficient and lightweight multiperson activity recognition framework for robot-assisted healthcare applications

Syed Hammad Hussain Shah, Anniken Susanne T. Karlsen, Mads Solberg, Ibrahim A. Hameed

Summary: Aging poses challenges to elderly individuals' social lives due to declining physical abilities, but group exercise in long-term care facilities is crucial for maintaining their physical and social well-being. However, accommodating these needs can be difficult due to staff shortages and lacking resources. To address this, a robotic exercise coach could be helpful. However, accurate and efficient human activity recognition is necessary for intelligent human-robot interaction in this context.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

The effects of synchronous and asynchronous steady-state auditory-visual motion on EEG characteristics in healthy young adults

Huanqing Zhang, Jun Xie, Yi Xiao, Guiling Cui, Xinyu Zhu, Guanghua Xu, Qing Tao, Yuzhe Yang, Zhiyuan Ren, Min Li

Summary: This study analyzed the effects of steady-state auditory-visual motion stimuli on EEG and found that synchronous and asynchronous stimuli can enhance brain responses and activate areas involved in auditory and visual integration. Moreover, asynchronous stimuli activated the Anterior Cingulate region, indicating its involvement in conflicting processing of steady-state auditory-visual motion information.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

MIP modeling of energy-conscious FJSP and its extended problems:From simplicity to complexity

Leilei Meng, Peng Duan, Kaizhou Gao, Biao Zhang, Wenqiang Zou, Yuyan Han, Chaoyong Zhang

Summary: This study developed thirteen mixed integer programming models to solve four different energy-conscious scheduling problems. The models were designed using different modeling ideas and linearization techniques. Experimental results showed the effectiveness and differences of the proposed MIP models.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

A hybrid machine learning-optimization framework for modeling supply chain competitive pricing problem under social network advertising

Atiye Yousefi, Mir Saman Pishvaee, Babak Amiri

Summary: Designing a system that links pricing and advertising to improve supply chain performance can bring significant benefits. This study validates the importance of accurately selecting influencers for social media advertisements and suggests that choosing influencers based solely on their influence network may not yield the expected results.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

Base on contextual phrases with cross-correlation attention for aspect-level sentiment analysis

Chao Zhu, Benshun Yi, Laigan Luo

Summary: Sentiment analysis, especially aspect-level sentiment classification, has become a prominent research area in natural language processing. Existing methods mainly rely on keyword extraction from sentence contexts, but they neglect the crucial information contained within key phrases. To address this limitation, a novel deformable convolutional network model is proposed to leverage the power of phrases for aspect-level sentiment analysis. The model effectively extracts phrase representations at various contextual distances and incorporates a cross-correlation attention mechanism to capture interdependencies between phrases and words.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

DDoS attack prediction using a honey badger optimization algorithm based feature selection and Bi-LSTM in cloud environment

O. Pandithurai, C. Venkataiah, Shrikant Tiwari, N. Ramanjaneyulu

Summary: Cloud computing provides users with on-demand services through the Internet, but it also faces security problems, especially the threat of Distributed Denial of Service (DDoS) attacks. To address this issue, this study proposes a method based on feature selection and Bi-LSTM classifier using a honey badger optimization algorithm to predict DDoS attacks in a cloud environment. The experimental results show that the proposed method achieves significant performance in predicting DDoS attacks.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

Product feature sentiment analysis based on GRU-CAP considering Chinese sarcasm recognition

Zeng Wang, Shi-jie Hu, Wei-dong Liu

Summary: This paper proposes a method of product feature sentiment analysis based on neural networks and feature extraction models, which can accurately extract product features and identify sentiment polarity from online review texts.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

Blind watermarking scheme for medical and non-medical images copyright protection using the QZ algorithm

Yuxin Shen, Chen Tang, Zirui Fan, Tianbo Wu, Zhenkun Lei

Summary: This paper presents a novel blind watermarking scheme based on the QZ algorithm, which solves the non-blind problem in existing watermarking schemes by using the watermark and host image as inputs for the QZ algorithm. The experimental results show that our scheme is robust against various attacks and forgeries, and out-performs the existing addition-based schemes in terms of invisibility.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

S3LR: Novel feature selection approach for Microarray-Based breast cancer recurrence prediction

Asala N. Erekat, Mohammad T. Khasawneh

Summary: This paper introduces a novel feature selection algorithm S3LR that focuses on improving the accuracy of breast cancer recurrence prediction. By effectively handling censored, event, and unlabeled data, S3LR demonstrates significant improvements in predictive performance. Furthermore, this algorithm has a versatile application and can be applied to address other survival and recurrence problems.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

Enhanced short-term load forecasting with hybrid machine learning models: CatBoost and XGBoost approaches

Lijie Zhang, Dominik Janosik

Summary: This study aims to enhance short-term load forecasting for electric power by exploring and evaluating hybrid models using CatBoost and XGBoost algorithms. The CatBoost-Arithmetic Optimization Algorithm hybrid model performs best on the training dataset, while the XGBoost-Arithmetic Optimization Algorithm hybrid model demonstrates superior performance on the testing dataset. Temperature is identified as the most influential variable affecting load forecasting, and the month variable also has a notable impact. Employing hybrid models optimized with appropriate algorithms and incorporating temperature data can significantly improve the accuracy of short-term load forecasting.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

CSENMT: A deep image compressed sensing encryption network via multi-color space and texture feature

Xiuli Chai, Shiping Song, Zhihua Gan, Guoqiang Long, Ye Tian, Xin He

Summary: The rapid development of wireless communication technology has provided great convenience for information transmission. Color images, as an important medium for data dissemination and sharing, face security and efficiency issues. Therefore, a deep image compressed sensing encryption network is proposed using multi-color space and texture features. This network achieves high visual performance by utilizing multiple color spaces and extracting texture details, and it has a higher scrambling degree and the ability to extract texture features.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

Hybrid deep learning and quantum-inspired neural network for day-ahead spatiotemporal wind speed forecasting

Ying-Yi Hong, Christian Lian Paulo P. Rioflorido, Weina Zhang

Summary: This work proposes a hybrid deep learning technique that incorporates a quantum-inspired neural network to predict wind speeds 24 h in advance. The proposed method outperforms other methods for 24 h-ahead wind speed forecasting.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

Novel wind-speed prediction system based on dimensionality reduction and nonlinear weighting strategy for point-interval prediction

Xinyu Wang, Jianzhou Wang, Xinsong Niu, Chunying Wu

Summary: The new wind-speed point-interval prediction system proposed in this study adopts the fuzzy information granulation technology and multi-objective dragonfly algorithm to improve the accuracy and reliability of wind-speed prediction. By combining sub-models and using a multi-nonlinear weight strategy, this system addresses the issue of conventional models' inability to accurately fit nonlinear data characteristics.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

Empirical mode decomposition and Hilbert-Huang transform-based eccentricity fault detection and classification with demagnetization in 120 kW interior permanent magnet synchronous motors

Woyeong Kwon, Junho Lee, Sikgyeong Choi, Namsu Kim

Summary: In this study, faults in permanent magnet synchronous motors (PMSMs) were diagnosed and analyzed by monitoring the Hilbert spectrum of the stator current. Experimental results showed that fault detection can be improved by monitoring the overall instantaneous energy.

EXPERT SYSTEMS WITH APPLICATIONS (2024)

Article Computer Science, Artificial Intelligence

DPTVAE: Data-driven prior-based tabular variational autoencoder for credit data synthesizing

Yandan Tan, Hongbin Zhu, Jie Wu, Hongfeng Chai

Summary: The article introduces a method using a data-driven prior-based tabular variational autoencoder (DPTVAE) to synthesize credit data. The DPTVAE effectively addresses the challenges in credit data synthesis and demonstrates exceptional synthesis performance, particularly in identifying real default users based on synthetic data.

EXPERT SYSTEMS WITH APPLICATIONS (2024)