Hyperparameter Optimization for Machine Learning Models Based on Bayesian Optimizationb
March 2019
Hyperparameters are important for machine learning algorithms since they directly control the behaviors of training algorithms and have a significant effect on the performance of machine learning models....
Big data challenge for monitoring quality in higher education institutions using business intelligence dashboards
March 2024
As big data becomes an apparent challenge to handle when building a business intelligence (BI) system, there is a motivation to handle this challenging issue in higher education institutions (HEIs)....
On large language models safety, security, and privacy: A survey
March 2025
The integration of artificial intelligence (AI) technology, particularly large language models (LLMs), has become essential across various sectors due to their advanced language comprehension and generation...
Knowledge graph and knowledge reasoning: A systematic review
June 2022
The knowledge graph (KG) that represents structural relations among entities has become an increasingly important research field for knowledge-driven artificial intelligence. In this survey, a comprehensive...
Sparse antenna array design methodologies: A review
September 2024
Designing a sparse array with reduced transmit/receive modules (TRMs) is vital for some applications where the antenna system's size, weight, allowed operating space, and cost are limited. Sparse arrays...
Performance assessment of five-level inverters for PV systems with capacitor voltage balancing and PD-PWM
June 2026
To solve the limitations of traditional two-level inverters to medium-to-high-power photovoltaic (PV) systems, such as increased switching stress, electromagnetic interference, and total harmonic distortion...
ZeroDefense: An adaptive hybrid fusion-based intrusion detection system for zero-day threat detection in IoT networks
March 2026
Zero-day attacks present a critical cybersecurity challenge for Internet of things (IoT) infrastructures, where the inability of signature-based intrusion detection systems (IDSs) to recognize novel...
Hybrid knowledge reasoning over knowledge hypergraph: Inductive, deductive, and abductive
June 2026
Traditional knowledge reasoning methods, which are predominantly reliant on static rules and structured data, often struggle to adapt to the ambiguity and dynamic evolution of real-world scenarios....
IoT-solar energy powered smart farm irrigation system
December 2019
As the Internet of things (IoT) technology is evolving, distributed solar energy resources can be operated, monitored, and controlled remotely. The design of an IoT based solar energy system for smart...
Bridgeless SEPIC-based AC-DC converter for compact inverter and low-power AC drive applications
June 2026
In this work, an efficient AC-DC converter based on a bridgeless single-ended primary inductor converter (SEPIC) is proposed. Composed of only two anti-series switches, two diodes, two inductors, and...
Multi-agent deep deterministic policy gradient algorithm for predictive UAV deployment in CF-mMIMO for identifying coverage holes
June 2026
Unmanned aerial vehicles, due to their adaptable mobility and various applications, including supporting communication infrastructure, monitoring, and rescue, are becoming increasingly valuable, making...
A survey of backdoor attacks and defences: From deep neural networks to large language models
September 2025
Deep neural networks (DNNs) have found extensive applications in safety-critical artificial intelligence systems, such as autonomous driving and facial recognition systems. However, recent research...
Perovskite single crystals: Synthesis, properties, and applications
June 2021
Perovskite single crystals have gained enormous attention in recent years due to their facile synthesis and excellent optoelectronic properties including the long carrier diffusion length, high carrier...
Passive auxiliary injection circuits for pulse tripling in three parallel-connected rectifiers
June 2026
This paper proposes two types of passive auxiliary injection circuits (PAICs) that enable pulse tripling in three parallel-connected rectifiers, addressing the limitation of pulse multiplication to...
A unified fractional action integral framework for memory-dependent circuit dynamics and Josephson junctions
June 2026
This study presents a unified framework for analyzing electric circuits and Josephson junctions using a fractional action integral that incorporates memory effects and nonlocal behavior. Unlike classical...
Coherent optical frequency combs: From principles to applications
June 2022
A coherent optical frequency comb is a kind of broad-spectrum light sources delivering equidistant frequencies, and correspondingly its temporal waveform appears as a sequence of ultrashort pulses....
Edge-intelligent semantic aggregation in blockchain-secured 6G UAV-assisted Internet of vehicles
March 2026
The intelligent transportation systems require secure, low-latency, and reliable communication architectures to enable the real-time vehicular application. This paper proposes an edge-intelligent semantic...
Progress and prospects of hydrogen production: Opportunities and challenges
June 2021
This study presents an overview of the current status of hydrogen production in relation to the global requirement for energy and resources. Subsequently, it symmetrically outlines the advantages and...
Multi-UAV path planning for multiple emergency payloads delivery in natural disaster scenarios
June 2025
Unmanned aerial vehicles (UAVs) are widely used in situations with uncertain and risky areas lacking network coverage. In natural disasters, timely delivery of first aid supplies is crucial. Current...
Hybrid big data optimization based energy-efficient and AI-powered green architecture toward smart cities and 5G-IoT applications
December 2025
The convergence of Internet of things (IoT) and 5G holds immense potential for transforming industries by enabling real-time, massive-scale connectivity and automation. However, the growing number of...
High-performance CDRA with surface-mounted horn at 5.8 GHz to enhance wireless communication system performance
June 2026
With an increasing demand for high-performance wireless communication systems, particularly in wireless local area network (WLAN) applications, there is a critical need for antennas that deliver high...
A certificateless identity authentication scheme for UAVs via blockchain sharding
March 2026
With the growing deployment of unmanned aerial vehicles (UAVs) swarms in national defense, military operations, and emergency response, secure and reliable intra-swarm identity authentication has become...
Review of roll-to-roll fabrication techniques for colloidal quantum dot solar cells
March 2023
Colloidal quantum dots (CQDs) are of great interest for photovoltaic (PV) technologies as they possess the benefits of solution-processability, size-tunability, and roll-to-roll manufacturability, as...
Automated ECG arrhythmia classification using hybrid CNN-SVM architectures
September 2025
Diagnosing cardiac diseases relies heavily on electrocardiogram (ECG) analysis, but detecting myocardial infarction-related arrhythmias remains challenging due to irregular heartbeats and signal variations....
Grape Guard: A YOLO-based mobile application for detecting grape leaf diseases
March 2025
Grape crops are a great source of income for farmers. The yield and quality of grapes can be improved by preventing and treating diseases. The farmer's yield will be dramatically impacted if diseases...
