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1,616 Results Found

  • Article
  • Open Access
6 Citations
2,932 Views
11 Pages

Due to the expansion of the internet, we encounter various types of big data such as web documents or sensing data. Compared to traditional small data such as experimental samples, big data provide more chances to find hidden and novel patterns with...

  • Article
  • Open Access
3 Citations
2,724 Views
16 Pages

Stability of Zeros for Sampled-Data Models with Triangle Sample and Hold Implemented by Zero-Order Hold

  • Minghui Ou,
  • Zhiyong Yang,
  • Zhenjie Yan,
  • Mingkun Ou,
  • Shuanghong Liu,
  • Shan Liang and
  • Shengjiu Liu

This paper deals with the stability characteristics of zeros for sampled-data models with a class of triangle sample and hold realized by a traditional zero-order hold. For any controlled models in the modern industrial system, using a digital contro...

  • Article
  • Open Access
12 Citations
3,804 Views
18 Pages

3 December 2021

With the development of information technology in modern military confrontation, specific emitter identification has become a hot and difficult topic in the field of electronic warfare, especially in the field of electronic reconnaissance. Specific e...

  • Article
  • Open Access
25 Citations
7,155 Views
21 Pages

The Effectiveness of Zero-Day Attacks Data Samples Generated via GANs on Deep Learning Classifiers

  • Nikolaos Peppes,
  • Theodoros Alexakis,
  • Evgenia Adamopoulou and
  • Konstantinos Demestichas

12 January 2023

Digitization of most of the services that people use in their everyday life has, among others, led to increased needs for cybersecurity. As digital tools increase day by day and new software and hardware launch out-of-the box, detection of known exis...

  • Article
  • Open Access
11 Citations
3,606 Views
23 Pages

Side-Scan Sonar Image Generation Under Zero and Few Samples for Underwater Target Detection

  • Liang Li,
  • Yiping Li,
  • Hailin Wang,
  • Chenghai Yue,
  • Peiyan Gao,
  • Yuliang Wang and
  • Xisheng Feng

6 November 2024

The acquisition of side-scan sonar (SSS) images is complex, expensive, and time-consuming, making it difficult and sometimes impossible to obtain rich image data. Therefore, we propose a novel image generation algorithm to solve the problem of insuff...

  • Article
  • Open Access
374 Views
23 Pages

30 October 2025

Controllers designed on the basis of an approximate discrete time model can fail when they are applied to the real processes. This is a problem of interest in adaptive symmetry control system theory. In this paper, we introduce the certain polynomial...

  • Article
  • Open Access
2 Citations
3,162 Views
18 Pages

High-Precision Pseudo-Noise Ranging Based on BOC Signal: Zero-Bias Mitigation Methods

  • Chunjiang Ma,
  • Xiaomei Tang,
  • Zhicheng Lv,
  • Zhibin Xiao and
  • Guangfu Sun

3 August 2019

In high precision applications based on binary subcarrier offset (BOC) signals, zero-bias of the digital discriminator is an error of importance. Unlike the thermal noise error, zero-bias is a fixed deviation that is challenging to eliminate by filte...

  • Article
  • Open Access
8 Citations
8,408 Views
10 Pages

4 December 2007

The design of fractional order-holds (FROH) of correcting gains β ∈ [ − 1 , 1 ](potentially and possibly including zero-order-holds, ZOH with β=0, and first-order-holds,FROH with β=1) is discussed related to achieving output deviations being close wi...

  • Article
  • Open Access
1,836 Views
14 Pages

21 September 2023

The landing buffer mechanism (LBM) is a crucial component of aerospace landing explorations, determining the success of the entire mission. Reliability demonstration tests (RDTs) are required to ensure the LBM’s performance meets the design ind...

  • Article
  • Open Access
1 Citations
422 Views
16 Pages

FZC-TDE: The Algorithm for Real-Time Ultrasonic Stress Measurement at Low Sampling Rates

  • Feifei Qiu,
  • Bing Chen,
  • Chunlang Luo,
  • Jiakai Chen,
  • Ziyong He,
  • Jun Zhao and
  • Guoqing Gou

27 November 2025

Micro–nano-sized processing equipment requires high levels of precision, necessitating residual stress measurement to maintain stability. Ultrasonic stress measurement is an effective method but is hindered by high sampling-rate requirements, l...

  • Article
  • Open Access
1 Citations
2,509 Views
15 Pages

24 March 2022

The future 6G mobile communication network will support an unprecedented amount of Internet of Things (IoT) devices, which will boost the demand for low cost terminals under the principle of green communication. One of the critical issues for low cos...

  • Article
  • Open Access
1 Citations
3,041 Views
19 Pages

19 September 2021

Mode collapse has always been a fundamental problem in generative adversarial networks. The recently proposed Zero Gradient Penalty (0GP) regularization can alleviate the mode collapse, but it will exacerbate a discriminator’s misjudgment problem, th...

  • Article
  • Open Access
2 Citations
3,764 Views
14 Pages

Bayesian Analysis for Cardiovascular Risk Factors in Ischemic Heart Disease

  • Sarada Ghosh,
  • Guruprasad Samanta and
  • Manuel De la Sen

19 July 2021

Ischemic heart disease (or Coronary Artery Disease) is the most common cause of death in various countries, characterized by reduced blood supply to the heart. Statistical models make an impact in evaluating the risk factors that are responsible for...

  • Article
  • Open Access
1,108 Views
14 Pages

Inferring the Timing of Antiretroviral Therapy by Zero-Inflated Random Change Point Models Using Longitudinal Data Subject to Left-Censoring

  • Hongbin Zhang,
  • McKaylee Robertson,
  • Sarah L. Braunstein,
  • David B. Hanna,
  • Uriel R. Felsen,
  • Levi Waldron and
  • Denis Nash

5 June 2025

We propose a new random change point model that utilizes routinely recorded individual-level HIV viral load data to estimate the timing of antiretroviral therapy (ART) initiation in people living with HIV. The change point distribution is assumed to...

  • Article
  • Open Access
11 Citations
8,808 Views
13 Pages

13 August 2018

When constructing discrete (binned) distributions from samples of a data set, applications exist where it is desirable to assure that all bins of the sample distribution have nonzero probability. For example, if the sample distribution is part of a p...

  • Article
  • Open Access
9 Citations
4,997 Views
16 Pages

A 3GSps 12-bit Four-Channel Time-Interleaved Pipelined ADC in 40 nm CMOS Process

  • Jianwen Li,
  • Xuan Guo,
  • Jian Luan,
  • Danyu Wu,
  • Lei Zhou,
  • Yinkun Huang,
  • Nanxun Wu,
  • Hanbo Jia,
  • Xuqiang Zheng and
  • Xinyu Liu
  • + 1 author

16 December 2019

This paper presents a four-channel time-interleaved 3GSps 12-bit pipelined analog-to-digital converter (ADC). The combination of master clock sampling and delay-adjusting is adopted to remove the time skew due to channel mismatches. An early comparis...

  • Article
  • Open Access
8 Citations
2,378 Views
13 Pages

21 September 2023

To address the problem of low fault diagnosis accuracy caused by insufficient fault samples of rolling bearings, a dual-input deep anomaly detection method with zero fault samples is proposed for early fault warning of rolling bearings. First, the ma...

  • Article
  • Open Access
4 Citations
2,557 Views
15 Pages

13 January 2022

Much research has been conducted on two-sided Exponentially Weighted Moving Average (EWMA) control charts, while less work has been devoted to the one-sided EWMA charts. Traditional one-sided EWMA charts involve resetting the EWMA statistic to the ta...

  • Article
  • Open Access
7 Citations
7,844 Views
26 Pages

A Novel Zero Dead-Time PWM Method to Improve the Current Distortion of a Three-Level NPC Inverter

  • Jin-Wook Kang,
  • Seung-Wook Hyun,
  • Yong Kan,
  • Hoon Lee and
  • Jung-Hyo Lee

19 December 2020

This paper proposes a novel pulse width modulation (PWM) for a three-level neutral point clamped (NPC) voltage source inverter (VSI). When the conventional PWM method is used in three-level NPC VSI, dead time is required to prevent a short circuit ca...

  • Article
  • Open Access
1,957 Views
35 Pages

27 April 2025

The Laser Light Screen System faces critical technical challenges in high-speed, long-range target detection: when a target passes through the light screen, weak light flux variations lead to significantly degraded signal-to-noise ratios (SNRs). Trad...

  • Article
  • Open Access
1 Citations
2,162 Views
18 Pages

Decentralized Immunization Monitoring: Lessons Learnt from a Pilot Implementation in Kumbotso LGA, Kano State, Nigeria

  • Adam Attahiru,
  • Yahaya Mohammed,
  • Fiyidi Mikailu,
  • Hyelshilni Waziri,
  • Ndadilnasiya Endie Waziri,
  • Mustapha Tukur,
  • Bashir Sunusi,
  • Mohammed Nasir Mahmoud,
  • Nancy Vollmer and
  • Patrick Nguku
  • + 12 authors

20 June 2025

Background: Immunization coverage in Nigeria is low, with many children missing out on important lifesaving vaccines. To enable a better understanding of contextual factors towards increasing uptake, we piloted a Decentralized Immunization Monitoring...

  • Article
  • Open Access
1 Citations
2,123 Views
16 Pages

An Adaptive Mixup Hard Negative Sampling for Zero-Shot Entity Linking

  • Shisen Cai,
  • Xi Wu,
  • Maihemuti Maimaiti,
  • Yichang Chen,
  • Zhixiang Wang and
  • Jiong Zheng

20 October 2023

Recently, the focus of entity linking research has centered on the zero-shot scenario, where the entity purposed to be labeled at the time of testing was never observed during the training phase, or it may belong to a different domain than the source...

  • Article
  • Open Access
6 Citations
3,740 Views
17 Pages

New Preparative Approach to Purer Technetium-99 Samples—Tetramethylammonium Pertechnetate: Deep Understanding and Application of Crystal Structure, Solubility, and Its Conversion to Technetium Zero Valent Matrix

  • Mikhail A. Volkov,
  • Anton P. Novikov,
  • Mikhail S. Grigoriev,
  • Vitaly V. Kuznetsov,
  • Anastasiia V. Sitanskaia,
  • Elena V. Belova,
  • Andrey V. Afanasiev,
  • Iurii M. Nevolin and
  • Konstantin E. German

19 January 2023

99Tc is one of the predominant fission products of 235U and an important component of nuclear industry wastes. The long half-life and specific activity of 99Tc (212,000 y, 0.63 GBq g−1) makes Tc a hazardous material. Two principal ways were pro...

  • Article
  • Open Access
4 Citations
2,469 Views
15 Pages

2 April 2023

Though Chinese word segmentation (CWS) relies heavily on arithmetic power to train huge models and human work to label corpora, models and algorithms are still less accurate, especially for segmentation in a specific domain. In this study, a high-deg...

  • Review
  • Open Access
20 Citations
5,992 Views
42 Pages

Nuclear Resonance Vibrational Spectroscopy: A Modern Tool to Pinpoint Site-Specific Cooperative Processes

  • Hongxin Wang,
  • Artur Braun,
  • Stephen P. Cramer,
  • Leland B. Gee and
  • Yoshitaka Yoda

2 August 2021

Nuclear resonant vibrational spectroscopy (NRVS) is a synchrotron radiation (SR)-based nuclear inelastic scattering spectroscopy that measures the phonons (i.e., vibrational modes) associated with the nuclear transition. It has distinct advantages ov...

  • Article
  • Open Access
16 Citations
2,932 Views
27 Pages

Methodology and Application of Statistical Techniques to Evaluate the Reliability of Electrical Systems Based on the Use of High Variability Generation Sources

  • César Berna-Escriche,
  • Ángel Pérez-Navarro,
  • Alberto Escrivá,
  • Elías Hurtado,
  • José Luis Muñoz-Cobo and
  • María Cristina Moros

9 September 2021

This study presents a new methodology, based on Monte-Carlo techniques to evaluate the reliability of a carbon-free electricity generation system based on renewable sources; it uses as inputs the variation of the electricity demand and the fluctuatio...

  • Article
  • Open Access
678 Views
19 Pages

26 February 2025

Prior elicitation is an important issue in both subjective and objective Bayesian frameworks, where prior distributions impose certain information on parameters before data are observed. Caution is warranted when utilizing noninformative priors for h...

  • Article
  • Open Access
8 Citations
4,739 Views
14 Pages

Research on Subdivision System of Sin-Cos Encoder Based on Zero Phase Bandpass Filter

  • Haoning Zhao,
  • Jiazhong Xu,
  • Haibin Zhang,
  • Zhen Liu and
  • Shi Dong

10 July 2019

A novel high-precision subdivision system for high-speed encoders is designed in this work. The system is designed with an arc second of Sin-Cos Encoder (SCE) based on zero phase bandpass filter. The system collects the analog output signals of an en...

  • Article
  • Open Access
1 Citations
394 Views
25 Pages

5 December 2025

This study develops an integrated quality inspection and production optimization framework for an imperfect production system, where system deterioration follows a zero-inflated non-homogeneous Poisson process (ZI-NHPP) characterized by a power-law i...

  • Article
  • Open Access
8 Citations
7,107 Views
15 Pages

14 February 2020

For a complementary metal-oxide-semiconductor image sensor with highly linear, low noise and high frame rate, the nonlinear correction and frame rate improvement techniques are becoming very important. The in-pixel source follower transistor and the...

  • Article
  • Open Access
411 Views
16 Pages

2 December 2025

Text data often exhibits high sparsity and zero inflation, where a substantial proportion of entries in the document–keyword matrix are zeros. This characteristic presents challenges to traditional count-based models, which may suffer from redu...

  • Article
  • Open Access
21 Citations
7,335 Views
15 Pages

Microwave Resonant and Zero-Field Absorption Study of Doped Magnetite Prepared by a Co-Precipitation Method

  • Juan Carlos Aphesteguy,
  • Silvia E. Jacobo,
  • Luis Lezama,
  • Galina V. Kurlyandskaya and
  • Nina N. Schegoleva

19 June 2014

Fe3O4 and ZnxFe3−xO4 pure and doped magnetite magnetic nanoparticles (NPs) were prepared in aqueous solution (Series A) or in a water-ethyl alcohol mixture (Series B) by the co-precipitation method. Only one ferromagnetic resonance line was observed...

  • Article
  • Open Access
1 Citations
2,325 Views
23 Pages

This study evaluates the performance of count regression models in the presence of zero inflation, outliers, and overdispersion using both simulated and real-world maternal mortality dataset. Traditional Poisson and negative binomial regression model...

  • Communication
  • Open Access
25 Citations
6,321 Views
15 Pages

22 July 2021

In the present investigation, N retention, AME, and AMEn data from six energy evaluation assays, involving four protein sources (soybean meal, full-fat soybean, rapeseed meal and maize distiller’s dried grains with solubles [DDGS]), are reported. The...

  • Article
  • Open Access
1,822 Views
21 Pages

Spectral De-Aliasing Method of Micro-Motion Signals Based on a Complex-Valued U-Net Network

  • Ming Long,
  • Jun Yang,
  • Saiqiang Xia,
  • Mingjiu Lv,
  • Bolin Cheng and
  • Wenfeng Chen

31 August 2023

Spectrum aliasing occurs in signal echoes when the sampling frequency does not comply with the Nyquist Sampling Theorem. In this scenario, the extraction of micro-motion parameters becomes challenging. This paper proposes a spectral de-aliasing metho...

  • Article
  • Open Access
1 Citations
1,432 Views
16 Pages

6 March 2024

A zero–one-inflated Poisson Lindley distribution has been introduced recently as an alternative to the zero–one-inflated Poisson distribution for describing count data with a substantial number of zeros and ones. Several stochastic repres...

  • Article
  • Open Access
13 Citations
4,914 Views
14 Pages

In this paper, a comprehensive double-vector approach is proposed to alleviate the common-mode voltage of voltage-source inverters based on a model predictive control scheme. Only six active vectors are selected to alleviate the common-mode voltage....

  • Article
  • Open Access
779 Views
14 Pages

Controlled Fault Current Interruption Scheme for Improved Fault Prediction Accuracy

  • Xu Yang,
  • Qi Long,
  • Hao Li,
  • Dachao Huang,
  • Shupeng Xue,
  • Jiajie Huang,
  • Hongzhang Liang and
  • Xiongying Duan

13 March 2025

To enhance the accuracy and efficiency of controlled fault current interruption (CFI) in short-circuit current processing within power systems, a half-cycle elimination prediction algorithm and a double-sampling CFI sequence method are proposed in th...

  • Article
  • Open Access
32 Citations
4,121 Views
16 Pages

A Novel Approach for Indexing Heavy Metals Pollution to Assess Groundwater Quality for Drinking Purposes

  • Elsiddig Eldaw,
  • Tao Huang,
  • Basheer Elubid,
  • Adam Khalifa Mahamed and
  • Yahaya Mahama

The present study proposes a new approach for indexing heavy metals ions to examine groundwater quality in North Kurdufan Province, Sudan. The new approach is developed based on the most frequently used methods for indexing heavy metals pollution in...

  • Article
  • Open Access
14 Citations
6,703 Views
13 Pages

An Improved Zero Potential Circuit for Readout of a Two-Dimensional Resistive Sensor Array

  • Jian-Feng Wu,
  • Feng Wang,
  • Qi Wang,
  • Jian-Qing Li and
  • Ai-Guo Song

6 December 2016

With one operational amplifier (op-amp) in negative feedback, the traditional zero potential circuit could access one element in the two-dimensional (2-D) resistive sensor array with the shared row-column fashion but it suffered from the crosstalk pr...

  • Article
  • Open Access
18 Citations
4,662 Views
12 Pages

Zero Waste Management: Investigation of Green Technology, the Green Supply Chain, and the Moderating Role of CSR Intentions

  • Abdelmohsen A. Nassani,
  • Hadi Hussain,
  • Elena Condrea,
  • Adriana Grigorescu,
  • Zahid Yousaf and
  • Mohamed Haffar

25 February 2023

The conservation of natural resources, reduction in waste, and minimization of energy consumption are now the primary focuses of zero waste management. Thus, this study examined the direct impact of green technology on zero waste management. We also...

  • Article
  • Open Access
7 Citations
4,958 Views
16 Pages

13 September 2021

For count data, though a zero-inflated model can work perfectly well with an excess of zeroes and the generalized Poisson model can tackle over- or under-dispersion, most models cannot simultaneously deal with both zero-inflated or zero-deflated data...

  • Brief Report
  • Open Access
8 Citations
3,686 Views
13 Pages

DNA Enrichment Methods for Microbial Symbionts in Marine Bivalves

  • Qiqi Li,
  • Yu Chen,
  • Si Zhang,
  • Yuanjiao Lyu,
  • Yiyang Zou and
  • Jie Li

High-throughput sequencing is a powerful tool used for bivalve symbiosis research, but the largest barrier is the contamination of host DNA. In this work, we assessed the host DNA reduction efficiency, microbial community structure, and microbial div...

  • Article
  • Open Access
12 Citations
5,461 Views
17 Pages

11 May 2020

Single-cell RNA-seq (scRNA-seq) is quite prevalent in studying transcriptomes, but it suffers from excessive zeros, some of which are true, but others are false. False zeros, which can be seen as missing data, obstruct the downstream analysis of sing...

  • Article
  • Open Access
2 Citations
3,594 Views
10 Pages

The Effect of Sample Handling on Rabies-Neutralizing Antibody Stability

  • Samantha J. Pralle,
  • Stephanie K. Gatrell,
  • Cassidy C. Keating and
  • Susan M. Moore

12 July 2024

The measurement of rabies-neutralizing antibody is important for monitoring the response to rabies vaccination. For all the purposes of measurement, such as routine monitoring of vaccine response in humans and animals, serosurveys, and biologics qual...

  • Article
  • Open Access
14 Citations
4,459 Views
16 Pages

20 November 2018

The identification of a reduced dimensional representation of the data is among the main issues of exploratory multidimensional data analysis and several solutions had been proposed in the literature according to the method. Principal Component Analy...

  • Article
  • Open Access
1,420 Views
21 Pages

1 November 2025

Datasets with many zero outcomes are common in real-world studies and often exhibit overdispersion and strong correlations among predictors, creating challenges for standard count models. Traditional approaches such as the Zero-Inflated Poisson (ZIP)...

  • Article
  • Open Access
136 Views
18 Pages

2 February 2026

Zero-inflated count data are characterized by an excessive frequency of zeros that cannot be adequately analyzed by a single distribution, such as Poisson or negative binomial. This problem is pervasive in many practical applications, including docum...

  • Article
  • Open Access
464 Views
23 Pages

13 November 2025

This study addresses the estimation of the common mean for the zero-inflated inverse Gaussian (ZIIG) distributions, a problem not previously explored. The performance of four interval estimation approaches was evaluated: the generalized confidence in...

  • Article
  • Open Access
2 Citations
4,187 Views
18 Pages

2 August 2019

Traditional supervised learning is dependent on the label of the training data, so there is a limitation that the class label which is not included in the training data cannot be recognized properly. Therefore, zero-shot learning, which can recognize...

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