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Study on egg sorting model based on visible-near infrared spectroscopy 基于可见-近红外光谱的鸡蛋分选模型研究
IF 4.1 Q1 Mathematics Pub Date : 2022-08-30 DOI: 10.1080/21642583.2022.2112317
Xiaoping Han, Yan-Hong Liu, Xuyuan Zhang, Zhiyong Zhang, Hua Yang
To realize the automatic sorting of eggs, the sorting models are established in this paper by using the visible-near infrared spectroscopy technique and taking the eggshell colour, integrity, as well as the feeding mode as sorting indexes. A variety of methods are selected to remove the noise and systematic error by preprocess the spectral information. The backpropagation neural network (BP), the Principal Component Analysis (PCA) coupled with BP and the Soft Independent Modeling of Class Analogy (SIMCA) sorting method are used to identify the eggshell colours (white, pink, green), eggshell integrity (intact, cracked) and laying hen feeding mode (caged and cage-free) by their characteristic band, respectively. The prediction correlation coefficient (Rv), the prediction mean square error (RMSEP), the prediction standard error (SEP), the recognition rate ( ) and the rejection rate ( ) are used to evaluate the established models. The results show that the established classification models have high prediction accuracy and small errors. The non-destructive testing (NDT) technology has great potential for large-scale intelligent laying hen farms.
为了实现鸡蛋的自动分选,本文采用可见光-近红外光谱技术,以蛋壳的颜色、完整性和饲养方式为分选指标,建立了鸡蛋的分选模型。通过对频谱信息进行预处理,选择了多种方法来去除噪声和系统误差。采用反向传播神经网络(BP)、主成分分析(PCA)结合BP和类相似软独立建模(SIMCA)分类方法,分别通过蛋壳颜色(白色、粉红色、绿色)、蛋壳完整性(完整、破裂)和蛋鸡饲养模式(笼式和无笼式)的特征带进行识别。使用预测相关系数(Rv)、预测均方误差(RMSEP)、预测标准误差(SEP),识别率()和拒绝率()来评估所建立的模型。结果表明,所建立的分类模型具有较高的预测精度和较小的误差。无损检测技术在大型智能蛋鸡养殖场具有巨大的应用潜力。
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引用次数: 4
Segmentation and weight prediction of grape ear based on SFNet-ResNet18 基于SFNet-ResNet18的葡萄果穗分割与重量预测
IF 4.1 Q1 Mathematics Pub Date : 2022-08-19 DOI: 10.1080/21642583.2022.2110541
C. Liang, Yanwen Li, Yan-Hong Liu, Pengchen Wen, Hua Yang
ABSTRACT In this paper, the segment and weight prediction problems are investigated for ear of grape based on deep learning technologies. The image datum is collected from ZaoHeiBao grape in a greenhouse by camera. The grape ear target segmentation model is constructed by cross combining three backbone networks (ResNet18, ResNet50, and ResNet101) and four deep learning semantic segmentation networks (SFNet, GCNet, EMANet, and Deeplabv3). The experimental results show that for the SFNet-ResNet18 model, whose structural size is 52.68MB, the mean Intersection over Union (mIoU) is , the mean Pixel Accuracy (mPA) is , and the average segmentation speed of the image ( ) is 0.217s. Therefore, the performance of the SFNet-ResNet18 model outperforms other combined network models and is selected to segment grape ears. Furthermore, on the basis of the segmentation results of grape ears by using the SFNet-ResNet18 model, the grape ear weight is predicted by adopting fractional regression model. The value of is 0.8903, which means that the selected model could accurately predict the weight of grape ears. The proposed method can not only segment the grape ears and accurately predict the weight of the grape ears, but also provide theoretical and technical support for grape yield prediction.
摘要本文研究了基于深度学习技术的葡萄果穗节段和重量预测问题。图像数据是用相机从枣黑堡葡萄温室中采集的。葡萄耳目标分割模型是通过交叉组合三个骨干网络(ResNet18、ResNet50和ResNet101)和四个深度学习语义分割网络(SFNet、GCNet、EMANet和Deeplabv3)来构建的。实验结果表明,对于结构大小为52.68MB的SFNet-ResNet18模型,平均并集交集(mIoU)为,平均像素精度(mPA)为,图像的平均分割速度()为0.217s。此外,基于SFNet-ResNet18模型对葡萄穗的分割结果,采用分数回归模型对葡萄果穗重量进行预测。的值为0.8903,这意味着所选择的模型可以准确地预测葡萄穗的重量。该方法不仅可以对葡萄穗进行分割,准确预测葡萄穗的重量,还可以为葡萄产量预测提供理论和技术支持。
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引用次数: 15
The concept of improving the security of IT systems supporting the storage of knowledge in organizations 提高支持组织中知识存储的IT系统安全性的概念
IF 4.1 Q1 Mathematics Pub Date : 2022-08-06 DOI: 10.1080/21642583.2022.2102550
Paweł Moszczyński, Maciej Moszczyński, Patrycja Bryczek-Wróbel, M. Kapalka, Tomasz Drozdowski, Jarosław Wróbel
This article presents the concept of improving the security of information systems intended for storing knowledge in organizations. It is designed to protect knowledge from leakage, theft or destruction, but without denying access to its resources to employees. It is possible thanks to the introduction of the so-called security and sharing groups (S&S groups) that have two attributes at the same time – the level of knowledge security and the level of knowledge sharing. The proposed concept also assumes assigning knowledge categories to data and enabling the organization to manage the allocation of operations on data from individual knowledge categories to S&S groups. As a result, the system enables the protection of the most valuable knowledge resources, without restricting access to its other categories. The developed concept makes it easier to find a compromise between the strength of security and the free flow of knowledge at the time of system implementation. In addition, the dynamic ability to choose the level of security and the level of access to knowledge in the system allows adaptation to changes taking place in the environment of the organization and increases its resilience.
本文提出了提高用于在组织中存储知识的信息系统的安全性的概念。它旨在保护知识不被泄露、盗窃或破坏,但不拒绝员工访问其资源。这要归功于所谓的安全和共享小组(S&S小组)的引入,它们同时具有两个属性——知识安全水平和知识共享水平。所提出的概念还假设将知识类别分配给数据,并使组织能够管理从单个知识类别到S&S组的数据操作分配。因此,该系统能够保护最有价值的知识资源,而不限制对其其他类别的访问。所开发的概念使得在系统实现时更容易在安全性的强度和知识的自由流动之间找到折衷方案。此外,在系统中选择安全级别和获取知识级别的动态能力允许适应组织环境中发生的变化,并提高其弹性。
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引用次数: 0
Adaptive synchronization control for stochastic complex networks with derivative coupling 具有导数耦合的随机复杂网络的自适应同步控制
IF 4.1 Q1 Mathematics Pub Date : 2022-07-27 DOI: 10.1080/21642583.2022.2102551
Yujing Shi, Lulu Yao, Shanqiang Li
In this paper, the problem of the adaptive synchronization control is studied for a class of stochastic complex networks with unknown nonlinear coupling strength and derivative coupling. First, in order to deal with the unknown nonlinear coupling strength, Takagi–Sugeno (T–S) fuzzy method is used to transform the network model into a T–S fuzzy complex network model. Then,a fuzzy adaptive controller and the corresponding adaptive parameter update rate are designed. Subsequently, a new Lyapunov function is constructed, which is related to the derivative coupling. By employing the stochastic analysis technique and Lyapunov stability theory, a sufficient condition is given for exponential stabilization in mean square of the synchronization error system. Finally, the effectiveness of the obtained theoretical results is verified through a simulation.
研究了一类非线性耦合强度和导数耦合未知的随机复杂网络的自适应同步控制问题。首先,为了处理未知的非线性耦合强度,采用Takagi-Sugeno (T-S)模糊方法将网络模型转化为T-S模糊复杂网络模型。然后,设计了模糊自适应控制器和相应的自适应参数更新速率。随后,构造了一个新的Lyapunov函数,该函数与导数耦合有关。利用随机分析技术和李雅普诺夫稳定性理论,给出了同步误差系统均方指数稳定的充分条件。最后,通过仿真验证了所得理论结果的有效性。
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引用次数: 0
PID controller enhanced with artificial bee colony algorithm for active magnetic bearing 基于人工蜂群算法的主动磁轴承PID控制器
IF 4.1 Q1 Mathematics Pub Date : 2022-07-26 DOI: 10.1080/21642583.2022.2102552
Hualong Du, Qiuyue Cui, Peng Liu, Xinyu Ma, He Wang
To reduce the effect of non-linearity in air gap control in active magnetic bearings (AMB). The PID controller for the AMB is proposed in this study, which is optimized with a reformative artificial bee colony (RABC) algorithm. The RABC algorithm balances the exploitation and exploration capabilities of the ABC algorithm by introducing globally optimal solutions and improved food source probabilities. Simulation with six benchmark functions validates the proposed algorithm, and the results reveal that the RABC algorithm has higher search accuracy and faster search speed than previous ABC algorithm versions. The experimental results show that RABC-PID outperforms the other four approaches and has greater robustness when compared to traditional PID, PSO-PID, DE-PID, and GA-PID. Meanwhile, the RABC-PID controller makes the AMB system more stable.
减少主动磁轴承(AMB)气隙控制中的非线性影响。本文提出了一种基于改进人工蜂群(RABC)算法的AMB PID控制器。RABC算法通过引入全局最优解和改进的食物源概率,平衡了ABC算法的开发和探索能力。通过六个基准函数的仿真验证了所提算法的有效性,结果表明RABC算法比以往的ABC算法具有更高的搜索精度和更快的搜索速度。实验结果表明,RABC-PID比传统PID、PSO-PID、DE-PID和GA-PID具有更强的鲁棒性。同时,RABC-PID控制器使AMB系统更加稳定。
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引用次数: 3
SSMA: simplified slime mould algorithm for optimization wireless sensor network coverage problem SSMA:用于优化无线传感器网络覆盖问题的简化黏菌算法
IF 4.1 Q1 Mathematics Pub Date : 2022-07-13 DOI: 10.1080/21642583.2022.2084650
Yuanye Wei, Xiuxi Wei, Huajuan Huang, Jian Bi, Yongquan Zhou, Yanlian Du
Wireless sensor network (WSN) coverage problem is to think about how to maximize the network coverage to obtain reliable monitoring and tracking services with guaranteed quality of service. In this paper, a simplified slime mould algorithm (SSMA) for solving the WSN coverage problem is proposed. In SSMA, we mainly conducted 13 groups of WSNs coverage optimization experiments and compared them with six well-known meta-heuristic optimization algorithms. The experimental results and Wilcoxon rank-sum test show that the proposed SSMA is generally competitive, outstanding performance and effectiveness. We proposed SSMA algorithm could be helpful to effectively control the network nodes energy, improve the perceived quality of services and extend the network survival time.
无线传感器网络(WSN)覆盖问题是考虑如何最大限度地扩大网络覆盖范围,以获得可靠的监测和跟踪服务,并保证服务质量。本文提出了一种求解WSN覆盖问题的简化黏菌算法(SSMA)。在SSMA中,我们主要进行了13组无线传感器网络覆盖优化实验,并将其与六种著名的元启发式优化算法进行了比较。实验结果和Wilcoxon秩和检验表明,所提出的SSMA总体上具有竞争力,性能和有效性突出。我们提出的SSMA算法有助于有效控制网络节点能量,提高感知服务质量,延长网络生存时间。
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引用次数: 6
An optimal portfolio method based on real time prediction of gold and bitcoin prices 基于黄金和比特币价格实时预测的最优投资组合方法
IF 4.1 Q1 Mathematics Pub Date : 2022-07-06 DOI: 10.1080/21642583.2022.2096149
Zhongqi Miao, Wenxuan Huang
Aiming at the portfolio problem of gold and bitcoin with a given linear trading commission, this paper puts forward the stage implementation forecast and optimal portfolio model. In the aspect of data prediction, SMA is used to predict the initial data, LSTM is used to predict the price trend of long-term data, and daily updated real-time price data is predicted. Considering the risk aversion of investors, the heuristic algorithm is used to solve the daily trading strategy of maximizing utility from September 12th, 2016 to September 12th, 2021. The simulation analysis of the sliding window shows that the algorithm can realize reasonable prediction, which verifies the effectiveness of the algorithm.
针对给定线性交易佣金的黄金和比特币组合问题,提出了阶段实施预测和最优组合模型。在数据预测方面,采用SMA对初始数据进行预测,采用LSTM对长期数据的价格趋势进行预测,并对每日更新的实时价格数据进行预测。考虑到投资者的风险规避,采用启发式算法求解2016年9月12日至2021年9月12日的效用最大化日交易策略。对滑动窗口的仿真分析表明,该算法能够实现合理的预测,验证了算法的有效性。
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引用次数: 0
Improving accuracy of indoor localization system using ensemble learning 利用集成学习提高室内定位系统的精度
IF 4.1 Q1 Mathematics Pub Date : 2022-06-30 DOI: 10.1080/21642583.2022.2092782
H. Tran, T. Nguyen, T. V. Huynh, Nhiem Quoc Tran
Recent innovations in Light-emitting diode (LED) technology and Internet of Things applications have promoted the development of visible light communication and localization applications. LED-based indoor positioning application has been a potential topic attracting the attention of many researchers because this positioning technique provides high accuracy, low cost, simple operation, and medium complexity. This paper focuses on analyzing the positioning quality with different LED layout structures. Furthermore, we consider the influence of noise in these models through the ensemble learning algorithm. We also combine the ensemble learning method with the trilateration algorithm in the proposed solution. The numerical simulation results show that the proposed solution respectively achieved a positioning accuracy of 0.023, 0.011, and 0.009 m when we considered the negative effect of all noises in 3 distinct layouts: 3 LEDs, 4LEDs, and 5 LEDs.
近年来,发光二极管(LED)技术和物联网应用的创新推动了可见光通信和定位应用的发展。基于led的室内定位技术具有精度高、成本低、操作简单、复杂度中等等优点,已成为众多研究人员关注的潜在课题。本文着重分析了不同LED布局结构下的定位质量。此外,我们还通过集成学习算法考虑了噪声对这些模型的影响。我们还将集成学习方法与三边算法相结合。数值模拟结果表明,在考虑3个led、4个led和5个led三种不同布局下所有噪声的负面影响时,该方案的定位精度分别为0.023、0.011和0.009 m。
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引用次数: 2
Finite-state super transducers for compact language resource representation in edge voice-AI 边缘语音AI中用于紧凑语言资源表示的有限状态超转换器
IF 4.1 Q1 Mathematics Pub Date : 2022-06-23 DOI: 10.1080/21642583.2022.2089930
S. Dobrišek, Ziga Golob, Jerneja Žganec Gros
Finite-state transducers have been proven to yield compact representations of pronunciation dictionaries used for grapheme-to-phoneme conversion in speech engines running on low-resource embedded platforms. However, for highly inflected languages even more efficient language resource reduction methods are needed. In the paper, we demonstrate that the size of finite-state transducers tends to decrease when the number of word forms in the modelled pronunciation dictionary reaches a certain threshold. Motivated by this finding, we propose and evaluate a new type of finite-state transducers, called ‘finite-state super transducers’, which allow for the representation of pronunciation dictionaries by a smaller number of states and transitions, thereby significantly reducing the size of the language resource representation in comparison to minimal deterministic final-state transducers by up to 25%. Further, we demonstrate that finite-state super transducers exhibit a generalization capability as they may accept and thereby phonetically transform even inflected word forms that had not been initially represented in the original pronunciation dictionary used for building the finite-state super transducer. This method is suitable for speech engines operating on platforms at the edge of an AI system with restricted memory capabilities and processing power, where efficient speech processing methods based on compact language resources must be implemented.
有限状态换能器已被证明可以产生用于在低资源嵌入式平台上运行的语音引擎中进行字素到音素转换的发音字典的紧凑表示。然而,对于高度屈折的语言,需要更有效的语言资源缩减方法。在本文中,我们证明了有限状态换能器的大小在建模发音字典中的词形数量达到一定阈值时趋于减小。受此发现的启发,我们提出并评估了一种新型有限状态换能器,称为“有限状态超级换能器”,它允许通过更少的状态和转换来表示发音字典,从而与最小确定性最终状态换能器相比,显着减少了语言资源表示的大小,最多减少了25%。此外,我们证明有限状态超级换能器表现出一种泛化能力,因为它们可以接受并因此在语音上转换甚至没有在用于构建有限状态超级换能器的原始发音字典中最初表示的屈折音词形。该方法适用于在内存能力和处理能力有限的AI系统边缘平台上运行的语音引擎,必须实现基于紧凑语言资源的高效语音处理方法。
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引用次数: 0
Surface microseismic data denoising based on sparse autoencoder and Kalman filter 基于稀疏自动编码器和卡尔曼滤波器的地表微震数据去噪
IF 4.1 Q1 Mathematics Pub Date : 2022-06-23 DOI: 10.1080/21642583.2022.2087786
Xuegui Li, Shuo Feng, Nan Hou, Ruyi Wang, Hanyang Li, Ming Gao, Siyuan Li
Microseismic technology is widely used in unconventional oil and gas production. Microseismic noise reduction is of great significance for the identification of microseismic events, the location of seismic sources and the improvement of unconventional oil and gas production. In this paper, a denoising filter is proposed based on sparse autoencoder and Kalman filtering. Firstly, a sparse autoencoder is pre-trained to learn the feature of the microseismic data. Sparse autoencoding is a back-propagation neural network algorithm based on unsupervised learning, in which there are three layers: the input layer, the hidden layer and the output layer. The hidden layer is the spare, which makes the algorithm learn features better, represents samples in harsh environments and reduces dimensionality effectively. Besides, Kalman filter is used to deal with the uncertainty factors. Using a dataset of 600 surface microseismic synthesis traces and simulation noise. Sparse autoencoders and Kalman filtering are trained to suppress noise. The denoising filter based on sparse autoencoder and Kalman filter model obtains a higher signal noise ratio than the conventional model. The experiment results for the filtering of surface microseismic signals show the feasibility and effectiveness of the proposed method.
微震技术广泛应用于非常规油气生产。微震降噪对于识别微震事件、确定震源位置和提高非常规油气产量具有重要意义。本文提出了一种基于稀疏自动编码器和卡尔曼滤波的去噪滤波器。首先,对稀疏自动编码器进行预训练,以学习微震数据的特征。稀疏自动编码是一种基于无监督学习的反向传播神经网络算法,分为三层:输入层、隐藏层和输出层。隐藏层是多余的,这使得算法更好地学习特征,在恶劣环境中表示样本,并有效地降维。此外,还采用卡尔曼滤波器对不确定因素进行处理。使用600个地表微震综合道和模拟噪声的数据集。稀疏自动编码器和卡尔曼滤波被训练来抑制噪声。基于稀疏自动编码器和卡尔曼滤波器模型的去噪滤波器比传统模型获得了更高的信噪比。地面微震信号滤波实验结果表明了该方法的可行性和有效性。
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引用次数: 14
期刊
Systems Science & Control Engineering
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