Skip Content
You are currently on the new version of our website. Access the old version .

512 Results Found

  • Article
  • Open Access
1,137 Views
24 Pages

Online Asynchronous Learning over Streaming Nominal Data

  • Hongrui Li,
  • Shengda Zhuo,
  • Lin Li,
  • Jiale Chen,
  • Tianbo Wang,
  • Jun Tang,
  • Shaorui Liu and
  • Shuqiang Huang

Online learning has become increasingly prevalent in real-world applications, where data streams often comprise heterogeneous feature types—both nominal and numerical—and labels may not arrive synchronously with features. However, most ex...

  • Article
  • Open Access
3 Citations
3,596 Views
48 Pages

2 March 2022

In this paper, we apply a Markov decision process to find the optimal asynchronous dynamic policy of an energy-efficient data center with two server groups. Servers in Group 1 always work, while servers in Group 2 may either work or sleep, and a fast...

  • Article
  • Open Access
2 Citations
5,066 Views
22 Pages

Data Collection for Mobile Group Consumption: An Asynchronous Distributed Approach

  • Weiping Zhu,
  • Weiran Chen,
  • Zhejie Hu,
  • Zuoyou Li,
  • Yue Liang and
  • Jiaojiao Chen

6 April 2016

Mobile group consumption refers to consumption by a group of people, such as a couple, a family, colleagues and friends, based on mobile communications. It differs from consumption only involving individuals, because of the complex relations among gr...

  • Article
  • Open Access
756 Views
17 Pages

26 May 2025

In view of the problems of data pollution, incomplete feature extraction, and poor multi-network parameter sharing and transmission under the federated learning framework of deep learning, this article proposes an improved asynchronous federated lear...

  • Article
  • Open Access
5 Citations
8,901 Views
23 Pages

Approximating Frequent Items in Asynchronous Data Stream over a Sliding Window

  • Hing-Fung Ting,
  • Lap-Kei Lee,
  • Ho-Leung Chan and
  • Tak-Wah Lam

22 September 2011

In an asynchronous data stream, the data items may be out of order with respect to their original timestamps. This paper studies the space complexity required by a data structure to maintain such a data stream so that it can approximate the set of fr...

  • Article
  • Open Access
8 Citations
3,303 Views
16 Pages

4 March 2020

In underwater acoustic modem design, pure asynchrony can contribute to improved wake-up coordination, thus avoiding energy-inefficient synchronization mechanisms. Nodes are designed with a pre-receptor and an acoustically adapted Radio Frequency Iden...

  • Article
  • Open Access
2 Citations
3,516 Views
9 Pages

26 August 2017

This paper presents a recent self-sampled-data control algorithm applied to nonlinear systems with actuator failures. Our approach uses the linear model of a given nonlinear system, and based on a granted actuator fault observer method, an asynchrono...

  • Article
  • Open Access
5 Citations
6,116 Views
27 Pages

18 August 2016

Cyber-physical energy systems provide a networked solution for safety, reliability and efficiency problems in smart grids. On the demand side, the secure and trustworthy energy supply requires real-time supervising and online power quality assessing....

  • Article
  • Open Access
4 Citations
4,637 Views
16 Pages

21 September 2021

The difficulty of adding external excitation and the asynchronous data collection from the industrial robot operation limited the online parameter identification of industrial robots. In this regard, this study proposes an identification method that...

  • Article
  • Open Access
1 Citations
1,858 Views
27 Pages

20 September 2024

With the continuous improvement of the performance of artificial intelligence and neural networks, a new type of computing architecture-edge computing, came into being. However, when the scale of hybrid intelligent edge systems expands, there are red...

  • Article
  • Open Access
2 Citations
4,228 Views
21 Pages

13 November 2024

With the advancement of the large language model (LLM), the demand for data labeling services has increased dramatically. Big models are inseparable from high-quality, specialized scene data, from training to deploying application iterations to landi...

  • Article
  • Open Access
779 Views
21 Pages

25 April 2025

Plant species classification in semi-arid mining areas is of great significance in assessing the environmental impacts and ecological restoration effects of coal mining. However, in semi-arid mining areas characterized by mixed arbor–shrub&ndas...

  • Article
  • Open Access
521 Views
32 Pages

7 November 2025

Building energy consumption data are widely used in various data research and analysis, and data quality is crucial for the accuracy of analysis results. Most existing data quality research focuses on the numerical accuracy of data, while little atte...

  • Review
  • Open Access
7 Citations
6,117 Views
23 Pages

Asynchronous Floating-Point Adders and Communication Protocols: A Survey

  • Pallavi Srivastava,
  • Edwin Chung and
  • Stepan Ozana

15 October 2020

Addition is the key operation in digital systems, and floating-point adder (FPA) is frequently used for real number addition because floating-point representation provides a large dynamic range. Most of the existing FPA designs are synchronous and th...

  • Article
  • Open Access
1,320 Views
24 Pages

21 November 2024

Event cameras, as bio-inspired visual sensors, offer significant advantages in their high dynamic range and high temporal resolution for visual tasks. These capabilities enable efficient and reliable motion estimation even in the most complex scenes....

  • Article
  • Open Access
12 Citations
18,015 Views
40 Pages

22 January 2025

We review recent articles that focus on the main issues identified in high-frequency financial data analysis. The issues to be addressed include nonstationarity, low signal-to-noise ratios, asynchronous data, imbalanced data, and intraday seasonality...

  • Article
  • Open Access
811 Views
48 Pages

Computer Model Based on an Asynchronous BLE 5.0 IMU Sensor Network for Biomechanical Applications

  • Juan Antonio Mora-Sánchez,
  • Luis Pastor Sánchez-Fernández,
  • Diana Lizet González-Baldovinos,
  • María Teresa Zagaceta-Álvarez and
  • Sandra Dinora Orantes-Jiménez

28 November 2025

The acquisition, processing, and monitoring of biomechanical variables in dynamic environments require sensor network architectures capable of handling high concurrency and large data volumes. This study aims to develop, validate, and deploy a robust...

  • Article
  • Open Access
891 Views
31 Pages

High-Redundancy Design and Application of Excitation Systems for Large Hydro-Generator Units Based on ATS and DDS

  • Xiaodong Wang,
  • Xiangtian Deng,
  • Xuxin Yue,
  • Haoran Wang,
  • Xiaokun Li and
  • Xuemin He

The large-scale integration of stochastic renewable energy sources necessitates enhanced dynamic balancing capabilities in power systems, positioning hydropower as a critical balancing asset. Conventional excitation systems utilizing hot-standby dual...

  • Article
  • Open Access
2 Citations
1,804 Views
29 Pages

11 November 2024

Teachers’ professional learning often includes online components. This study examined how a case of 37 teachers utilized a specific online asynchronous professional learning platform designed to support teachers’ growth in learning to tea...

  • Article
  • Open Access
5 Citations
2,752 Views
25 Pages

Join Operation for Semantic Data Enrichment of Asynchronous Time Series Data

  • Eloi Garcia,
  • Mohammad Peyman,
  • Carles Serrat and
  • Fatos Xhafa

1 April 2023

In this paper, we present a novel framework for enriching time series data in smart cities by supplementing it with information from external sources via semantic data enrichment. Our methodology effectively merges multiple data sources into a unifor...

  • Article
  • Open Access
17 Citations
8,344 Views
28 Pages

16 August 2024

This study presents a cost-effective IoT-based Supervisory Control and Data Acquisition system for the real-time monitoring and control of photovoltaic systems in a rural Pakistani community. The system utilizes the Blynk platform with Arduino Nano,...

  • Communication
  • Open Access
1,470 Views
15 Pages

25 September 2025

This work presents the design and simulation of a time-interleaved successive approximation register (SAR) analog-to-digital converter (ADC) implemented in GlobalFoundries’ 22 nm Fully Depleted Silicon-on-Insulator (FD-SOI) CMOS process. Motiva...

  • Article
  • Open Access
37 Citations
9,679 Views
29 Pages

Geospatial IoT—The Need for Event-Driven Architectures in Contemporary Spatial Data Infrastructures

  • Matthes Rieke,
  • Lorenzo Bigagli,
  • Stefan Herle,
  • Simon Jirka,
  • Alexander Kotsev,
  • Thomas Liebig,
  • Christian Malewski,
  • Thomas Paschke and
  • Christoph Stasch

The nature of contemporary spatial data infrastructures lies in the provision of geospatial information in an on-demand fashion. Although recent applications identified the need to react to real-time information in a time-critical way, research effor...

  • Article
  • Open Access
19 Citations
9,413 Views
21 Pages

Predicting Student Performance and Enhancing Learning Outcomes: A Data-Driven Approach Using Educational Data Mining Techniques

  • Athanasios Angeioplastis,
  • John Aliprantis,
  • Markos Konstantakis and
  • Alkiviadis Tsimpiris

27 February 2025

This study investigates the use of educational data mining (EDM) techniques to predict student performance and enhance learning outcomes in higher education. Leveraging data from Moodle, a widely used learning management system (LMS), we analyzed 450...

  • Article
  • Open Access
116 Views
32 Pages

Multi-radar systems can significantly improve tracking robustness and accuracy, but practical deployments are challenged by asynchronous sensing timestamps across distributed platforms and by limited communication bandwidth. This paper proposes a com...

  • Article
  • Open Access
22 Citations
6,238 Views
21 Pages

How the Education Industries React to Synchronous and Asynchronous Learning in COVID-19: Multigroup Analysis Insights for Future Online Education

  • Satria Fadil Persada,
  • Yogi Tri Prasetyo,
  • Xabitha Vanessa Suryananda,
  • Bahalwan Apriyansyah,
  • Ardvin K. S. Ong,
  • Reny Nadlifatin,
  • Etsa Astridya Setiyati,
  • Raden Aditya Kristamtomo Putra,
  • Agung Purnomo and
  • Bobby Ardiansyahmiraja
  • + 4 authors

17 November 2022

The phenomenon of the COVID-19 pandemic requires prevention actions, such as social and physical distancing. In education, there is no choice but to adapt to online learning from traditional face-to-face learning. Online learning is divided into two...

  • Article
  • Open Access
13 Citations
7,468 Views
18 Pages

Wearable medical devices, wireless sensor networks, and other energy-constrained sensing devices are often concerned with finding specific data within more-complex signals while maintaining low power consumption. Traditional analog-to-digital convert...

  • Article
  • Open Access
10 Citations
2,817 Views
20 Pages

19 July 2019

Successful track-to-track association (TTTA) in a multisensor and multitarget scenario is predicated on a reasonable likelihood function to evaluate the similarity of asynchronous mono tracks. To deal with the lack of synchronous data and prior knowl...

  • Article
  • Open Access
3 Citations
2,562 Views
19 Pages

Double-Layer Energy Efficient Synchronous-Asynchronous Circuit-Switched NoC

  • Sandy A. Wasif,
  • Salma Hesham,
  • Diana Goehringer,
  • Klaus Hofmann and
  • Mohamed A. Abd El Ghany

A network-on-chip (NoC) offers high performance, flexibility and scalability in communication infrastructure within multi-core platforms. However, NoCs contribute significantly to the overall system’s power consumption. The double-layer energy effici...

  • Article
  • Open Access
30 Citations
6,856 Views
12 Pages

7 October 2021

Due to the COVID-19 pandemic, schools and universities across the world have had to switch to online learning, which is offered either synchronously or asynchronously. This study examined the role of self-regulation on students’ performance in each o...

  • Article
  • Open Access
4 Citations
3,954 Views
10 Pages

Model-Free Adaptive Direct Torque Control for the Speed Regulation of Asynchronous Motors

  • Ziwei Zhang,
  • Shangtai Jin,
  • Genfeng Liu,
  • Zhongsheng Hou and
  • Jianmin Zheng

12 March 2020

In this paper, a model-free adaptive direct torque control (MFADTC) method for the speed regulation of asynchronous motors is proposed to solve the problems of modeling difficulties and poor anti-disturbance ability of the asynchronous motor. The des...

  • Article
  • Open Access
694 Views
21 Pages

SACW: Semi-Asynchronous Federated Learning with Client Selection and Adaptive Weighting

  • Shuaifeng Li,
  • Fangfang Shan,
  • Shiqi Mao,
  • Yanlong Lu,
  • Fengjun Miao and
  • Zhuo Chen

27 October 2025

Federated learning (FL), as a privacy-preserving distributed machine learning paradigm, demonstrates unique advantages in addressing data silo problems. However, the prevalent statistical heterogeneity (data distribution disparities) and system heter...

  • Article
  • Open Access
2,450 Views
12 Pages

This paper presents a new, efficient asynchronous early output majority voter that can be used to effectively realize an asynchronous triple modular redundancy (TMR) implementation. For the input-output mode asynchronous realization, the dual-rail co...

  • Article
  • Open Access
1 Citations
2,271 Views
19 Pages

A Monotonic Early Output Asynchronous Full Adder

  • Padmanabhan Balasubramanian and
  • Douglas L. Maskell

This article introduces a novel asynchronous full adder that operates in an input–output mode (IOM), displaying both monotonicity and an early output characteristic. In a monotonic asynchronous circuit, the intermediate and primary outputs exhi...

  • Article
  • Open Access
1 Citations
2,990 Views
24 Pages

9 August 2024

The rapid development of artificial intelligence (AI) and 5G paradigm brings infinite possibilities for data annotation for new applications in the industrial Internet of Things (IIoT). However, the problem of data annotation consistency under distri...

  • Article
  • Open Access
1 Citations
2,171 Views
15 Pages

In the era of cloud computing, the reliability and efficiency of distributed systems, particularly in cloud-based databases and applications, are important. State Machine Replication (SMR), underpinning these distributed architectures, commonly utili...

  • Article
  • Open Access
4 Citations
5,146 Views
14 Pages

29 December 2021

The recent unprecedented success of deep learning (DL) in various fields is underlied by its use of large-scale data and models. Training a large-scale deep neural network (DNN) model with large-scale data, however, is time-consuming. To speed up the...

  • Article
  • Open Access
574 Views
17 Pages

24 October 2025

Coordinated cyber attacks tamper with measurement data to disrupt the situational awareness of active distribution systems. Various sensors report measurements asynchronously at different rates, which introduces challenges during state estimation. In...

  • Article
  • Open Access
15 Citations
6,042 Views
13 Pages

12 August 2024

Although possessing flexibility and accessibility, asynchronous online courses suffer from high attrition and cause unsatisfactory learning performance, leading to a pressing need to understand factors influencing learners’ continuance of learn...

  • Article
  • Open Access
3 Citations
2,025 Views
18 Pages

Parameter Identification of Asynchronous Load Nodes

  • Andrey Kryukov,
  • Konstantin Suslov,
  • Pavel Ilyushin and
  • Azat Akhmetshin

14 February 2023

Asynchronous loads (AL), because of their low negative-sequence resistance, produce the effect of reduced unbalance at their connection points. Therefore, proper modeling of unbalanced load flows in power supply systems requires properly accounting f...

  • Article
  • Open Access
8 Citations
4,200 Views
20 Pages

29 April 2024

Industrial process monitoring is a critical application of multivariate time-series (MTS) anomaly detection, especially crucial for safety-critical systems such as nuclear power plants (NPPs). However, some current data-driven process monitoring appr...

  • Article
  • Open Access
699 Views
23 Pages

10 October 2025

To address the challenges of short dwell time near top dead center (TDC) and uneven heat release, this paper presents a comprehensive analysis of the effects of different ignition schemes on combustion characteristics, flame formation and development...

  • Article
  • Open Access
1 Citations
4,037 Views
33 Pages

A 400-level undergraduate oral presentation and discussion course in Systems Neuroscience was delivered asynchronously online during the COVID-19 pandemic. Enrolled students banked their narrated oral presentations in video format online then engaged...

  • Article
  • Open Access
2 Citations
2,326 Views
16 Pages

Simplex Back Propagation Estimation Method for Out-of-Sequence Attitude Sensor Measurements

  • Shu Ting Goh,
  • M. S. C. Tissera,
  • RongDe Darius Tan,
  • Ankit Srivastava,
  • Kay-Soon Low and
  • Lip San Lim

19 October 2022

For a small satellite, the processor onboard the attitude determination and control system (ADCS) is required to monitor, communicate, and control all the sensors and actuators. In addition, the processor is required to consistently communicate with...

  • Article
  • Open Access
19 Citations
4,391 Views
14 Pages

A New Asynchronous RTK Method to Mitigate Base Station Observation Outages

  • Yuan Du,
  • Guanwen Huang,
  • Qin Zhang,
  • Yang Gao and
  • Yuting Gao

1 August 2019

Real-time kinematic (RTK) positioning is a satellite navigation technique that is widely used to enhance the precision of position data obtained from global navigation satellite systems (GNSS). This technique can reduce or eliminate significant corre...

  • Article
  • Open Access
2,339 Views
12 Pages

Delay-Tolerant Distributed Inference in Tracking Networks

  • Mohammadreza Alimadadi,
  • Milica Stojanovic and
  • Pau Closas

26 August 2021

This paper discusses asynchronous distributed inference in object tracking. Unlike many studies, which assume that the delay in communication between partial estimators and the central station is negligible, our study focuses on the problem of asynch...

  • Article
  • Open Access
7 Citations
2,750 Views
18 Pages

Research on Three-Phase Asynchronous Motor Fault Diagnosis Based on Multiscale Weibull Dispersion Entropy

  • Fengyun Xie,
  • Enguang Sun,
  • Shengtong Zhou,
  • Jiandong Shang,
  • Yang Wang and
  • Qiuyang Fan

13 October 2023

Three-phase asynchronous motors have a wide range of applications in the machinery industry and fault diagnosis aids in the healthy operation of a motor. In order to improve the accuracy and generalization of fault diagnosis in three-phase asynchrono...

  • Article
  • Open Access
1 Citations
869 Views
20 Pages

9 July 2025

With the hierarchical evolution of distribution network control architectures, distributed state estimation has become a focal point of research. To address communication delays arising from inter-level data exchanges, this paper proposes a multi-lev...

  • Article
  • Open Access
3 Citations
1,913 Views
21 Pages

26 May 2022

This article presents the results of the analysis of experimental data that were obtained during industrial tests of an adjustable asynchronous traction electric drive of a shuttle car for the mining industry. During these tests, by changing the para...

of 11