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2021 8th International Conference on Information, Cybernetics, and Computational Social Systems (ICCSS)最新文献

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Prediction of ship fuel consumption based on Elastic network regression model 基于弹性网络回归模型的船舶燃油消耗量预测
S. Li, Xinyu Li, Y. Zuo, Tie-shan Li
Predicting the fuel consumption of ships sailing under different navigation conditions and improving the operation efficiency of shipping industry has become an important topic. There are many characteristic variables affecting ship fuel consumption during navigation, such as trim, draft, wind speed, wind direction and so on. And some variables are highly correlated, which is easy to produce multicollinearity problems. It makes the fuel consumption prediction complex. The study established an Elastic network regression model by combining the least absolute contraction and selection operator (LASSO) and Ridge regression algorithm. The model reduces the complexity and improves the interpretability and accuracy by selecting the characteristic variables affecting ship fuel consumption. The study is verified by the navigation data of a ferry within two months. The results show that compared with long short term memory (LSTM) and back-propagation neural network (BPNN), the Elastic network regression model can not only explain the relationship between fuel consumption and variables, but also predict fuel consumption more accurately and effectively.
预测船舶在不同航行条件下的燃油消耗,提高航运业的运营效率已成为一个重要课题。在航行过程中,影响船舶燃油消耗的特征变量很多,如纵倾、吃水、风速、风向等。有些变量是高度相关的,容易产生多重共线性问题。这使得油耗预测变得复杂。结合最小绝对收缩和选择算子(LASSO)和Ridge回归算法,建立了弹性网络回归模型。该模型通过选取影响船舶燃油消耗的特征变量,降低了模型的复杂性,提高了模型的可解释性和精度。这一研究结果通过一艘渡轮在两个月内的航行数据得到了验证。结果表明,与长短期记忆(LSTM)和反向传播神经网络(BPNN)相比,弹性网络回归模型不仅能解释油耗与变量之间的关系,而且能更准确有效地预测油耗。
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引用次数: 1
Synchronization control for a class of delayed fuzzy inertial neural networks 一类时滞模糊惯性神经网络的同步控制
Jing Han, Guici Chen, Guodong Zhang, Junhao Hu
In this paper, a class of delayed inertial neural networks(INNs) with fuzzy templates is considered. By using a novel Lyapunov functional and an effective control law, several synchronization results of the investigated delayed fuzzy inertial neural networks(FINNs) are given. We construct the exponential synchronization results of the delayed FINNs via the nonreduced-order method for the first time. At last, numerical simulations show the correctness of the obtained results.
研究了一类具有模糊模板的时滞惯性神经网络。利用一种新的Lyapunov泛函和一种有效的控制律,给出了所研究的延迟模糊惯性神经网络(FINNs)的几个同步结果。本文首次利用非降阶方法构造了延迟finn的指数同步结果。最后通过数值仿真验证了所得结果的正确性。
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引用次数: 0
Adaptive Neural Consensus Control of Nonlinear Multi-agent Systems with Actuator Failures 具有执行器失效的非线性多智能体系统的自适应神经一致性控制
Zhuangbi Lin, Zhi Liu
The adaptive consensus control for multi-agent systems (MASs) with actuator failures is considered in this article. By combining the neural networks (NNs) technique to develop the control scheme, the unknown nonlinear function are allowed to exist in the system dynamics. Moreover, the disturbance is also compensated by adaptive estimated parameter. The controller is totally distributed and only two unknown parameters needed to be updated. The presented control method not only ensures that every agent of MAS can track the leader with a predetermined error, but improves the transient performance. At last, a physical example is provided to demonstrate the effectiveness of the proposed method.
研究了具有执行器失效的多智能体系统的自适应一致控制问题。结合神经网络技术开发控制方案,允许系统动力学中存在未知的非线性函数。此外,还采用自适应估计参数对扰动进行了补偿。控制器是完全分布式的,只需要更新两个未知参数。所提出的控制方法不仅保证了MAS的每个agent都能以预定误差跟踪leader,而且提高了系统的暂态性能。最后,通过一个物理算例验证了所提方法的有效性。
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引用次数: 0
Causality Induced Distributed Spatio-temporal Feature Extraction 因果关系诱导的分布式时空特征提取
Duxin Chen, Wenwu Yu, Qi Shao, Xiaolu Liu
Various real world data contains complex coupling spatio-temporal information, which brings a huge challenge for prediction, especially long-term prediction. Therefore, in this study, we propose a causality induced spatiotemporal feature extraction method and a novel deep learning framework for long-term strongly coupling data prediction tasks, which can effectively extract long-term spatio-temporal dependence of the time series data through causal network, geographic network and multiple time extraction mechanism. The proposed algorithm has achieved outstanding prediction performance in the widely- used test data set of traffic flow, where the long-term prediction accuracy of is nearly 30% better than other state-of-the-art currently-used spatio-temporal prediction models.
各种真实世界数据中包含着复杂的时空耦合信息,这给预测尤其是长期预测带来了巨大的挑战。因此,在本研究中,我们针对长期强耦合数据预测任务,提出了一种因果关系诱导的时空特征提取方法和一种新的深度学习框架,通过因果网络、地理网络和多时间提取机制有效提取时间序列数据的长期时空依赖性。该算法在应用广泛的交通流测试数据集上取得了优异的预测性能,其长期预测精度比目前使用的其他最先进的时空预测模型提高了近30%。
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引用次数: 0
Weakly Supervised Fine-Grained Visual Classification Through Spatial Information Mining and Attention-guided Regularization 基于空间信息挖掘和注意引导正则化的弱监督细粒度视觉分类
Lequan Wang, Jin Duali, Ziqiang Chen, Guangqiu Chen, Gaotian Liu
Over-fitting is a severe problem when we adopt deep neural networks with a large number parameters in fine-grained visual classification. Many data augmentation methods are proposed through weakly supervised learning to alleviate over-fitting issue. Different from those methods, we propose a weakly supervised attention-guided regularization by object parts’ attention maps to fine-tune the Fully Connected (FC) layer and relieve over-fitting issue during training in this paper. On the other hand, the neural units in the last convolutional layer contain the same receptive fields that limit recognition performance due to involving lots of background noises. To alleviate this issue, we devise a spatial information mining module with an auxiliary penalty loss to aggregate multi-scale receptive fields feature maps with the selected precedent layer. Comprehensive experiments are conducted to show our method achieves or surpasses state-of-the-art results on common fine-grained classification datasets.
当我们在细粒度视觉分类中采用大量参数的深度神经网络时,过拟合是一个严重的问题。为了解决过拟合问题,提出了许多通过弱监督学习来增强数据的方法。与这些方法不同的是,本文提出了一种弱监督的注意引导正则化方法,通过对象部分的注意映射对完全连接层进行微调,以缓解训练过程中的过拟合问题。另一方面,最后一个卷积层的神经单元包含相同的接受域,由于涉及大量背景噪声,限制了识别性能。为了缓解这一问题,我们设计了一个带有辅助惩罚损失的空间信息挖掘模块,将多尺度接受域特征映射与所选的先验层进行聚合。进行了全面的实验,以表明我们的方法在常见的细粒度分类数据集上达到或超过了最先进的结果。
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引用次数: 0
A Parallel Combination of Facilitating Synapse Based on Temporal Correlation in SpikeProp Algorithm SpikeProp算法中基于时间关联的便利突触并行组合
Shushi Liu, Chuandong Li
This paper presents a new method to minimize the error function between the expected spike time and the actual spike time, which is a parallel combination of facilitating synapses consisting of an excitatory and an inhibitory synapse. The SpikeProp algorithm is designed to solve the error optimization problem between the expected spike time and the actual spike time of the current from the presynaptic neuron passing through the synapse to the postsynaptic neuron. The SpikeProp algorithm merges the Bienenstock–Cooper–Munro (BCM) rule with Spike Timing Dependent Plasticity (STDP) before calculating errors. The idea of filtration based on value in Synaptic Weight Association Training (SWAT) is utilized in the hidden layer. Thus, a time selector is used in the synapse between the input layer and the hidden layer, which is achieved through parallel combination of excitatory and inhibitory synapses. The neuron models used in these two processes are Leaky Integrate and Fired (LIF) and Spike Response Model (SRM), respectively. The algorithm is benchmarked against the nonlinear exclusive OR (XOR) problem. The simulation results has illustrated the diagram of the time selector in the hidden layer and the error measured in the output layer.
本文提出了一种最小化预期尖峰时间与实际尖峰时间之间误差函数的新方法,该方法是由兴奋性突触和抑制性突触组成的便利突触并行组合。SpikeProp算法旨在解决从突触前神经元到突触后神经元的电流的预期尖峰时间与实际尖峰时间之间的误差优化问题。SpikeProp算法在计算误差之前,将bienenstock - copper - munro (BCM)规则与Spike Timing Dependent Plasticity (STDP)相结合。隐层采用了突触权重关联训练(SWAT)中基于值的过滤思想。因此,在输入层和隐藏层之间的突触中使用时间选择器,这是通过兴奋性突触和抑制性突触的并行组合来实现的。在这两个过程中使用的神经元模型分别是Leaky Integrate and Fired (LIF)和Spike Response Model (SRM)。该算法针对非线性异或问题进行了基准测试。仿真结果显示了隐层时间选择器的框图和输出层测量的误差。
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引用次数: 0
LBP index for evaluation of disk degaussing achievement based on AFM image 基于AFM图像的磁盘消磁效果评价LBP指标
Ziying Zhang, Zhe Xu, Yaxuan Yao, Xiaoge Liu, Jian Tang
In the field of information security, it is very important to judge whether the information on a magnetic storage medium is completely destroyed. But so far, domestic research on the degaussing effect of magnetic storage media is still lacking. Previous studies have shown that the magnetic images before and after degaussing can reflect the amount of meaningful information left on the disk, which is closely related to the degaussing effect. Therefore, this paper proposes a new method to study the magnetic images before and after degaussing. This paper introduces the LBP texture feature extraction algorithm to process the magnetic images before and after degaussing, and evaluates the degaussing effect of the magnetic storage medium through the extracted texture feature values. A new LBP degaussing evaluation index is proposed, and the parameters of the index are optimized to achieve the best evaluation performance.
在信息安全领域,判断磁存储介质上的信息是否被完全破坏是非常重要的。但到目前为止,国内对磁存储介质消磁效应的研究还比较缺乏。以往的研究表明,消磁前后的磁图像可以反映出磁盘上留下的有意义信息的多少,这与消磁效果密切相关。因此,本文提出了一种消磁前后磁图像研究的新方法。本文引入LBP纹理特征提取算法,对消磁前后的磁性图像进行处理,并通过提取的纹理特征值来评价磁性存储介质的消磁效果。提出了一种新的LBP消磁评价指标,并对指标参数进行了优化,以获得最佳评价性能。
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引用次数: 0
Trend similarity MWPCA based fault monitoring for xylenol tail gas treatment process 基于趋势相似MWPCA的二甲醇尾气处理过程故障监测
Feihong Xu, X. Luan
In the process of preparing xylenol, a large amount of tail gas will be generated. When using industrial boilers to treat the xylenol tail gas, the high-pressure steam in the furnace may lead to an explosion accident; on the other hand, the toxic tail gas of incomplete combustion in the furnace may also leak, endangering the lives of staff. So it is necessary to monitor the fault of the industrial boiler which used to treat xylenol tail gas. However, due to the non-stationary characteristics of the tail gas treatment process, the conventional fault monitoring methods have the problem of low accuracy. In order to solve these problems, this paper proposes a fault monitoring method based on trend similarity feature. This method cuts the time series by sliding time window, and calculates the trend similarity between data in each time window. Then uses the sliding time window to update the monitoring model in real-time. So it can change the threshold value of the monitoring model with the change of samples, to improve the monitoring accuracy. Finally, the practical data collected from a xylenol producer are used for validation. The results show that the fault detection based on the trend similarity feature has higher accuracy than the conventional method, and the detection accuracy increases with the non-stationary of the process.
在制备二甲酚的过程中,会产生大量的尾气。使用工业锅炉处理二甲醇尾气时,炉内高压蒸汽可能导致爆炸事故;另一方面,炉内不完全燃烧的有毒尾气也可能泄漏,危及工作人员的生命安全。因此,有必要对处理二甲苯尾气的工业锅炉进行故障监测。然而,由于尾气处理过程的非平稳特性,传统的故障监测方法存在精度不高的问题。为了解决这些问题,本文提出了一种基于趋势相似特征的故障监测方法。该方法通过滑动时间窗对时间序列进行裁剪,计算每个时间窗内数据间的趋势相似度。然后利用滑动时间窗对监测模型进行实时更新。因此,它可以随着样本的变化而改变监测模型的阈值,以提高监测精度。最后,利用某二甲酚生产企业的实际数据进行了验证。结果表明,基于趋势相似特征的故障检测比常规方法具有更高的精度,且检测精度随过程的非平稳性而增加。
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引用次数: 0
Enhanced Soft Sensor with Qualified Augmented Data Using Centroid Measurement Criterion 利用质心测量准则增强具有合格增强数据的软传感器
Yun Dai, Qing Yu, Tao Yang, Yuan Yao, Yi Liu
Development of reliable soft sensors using limited labeled samples is not an easy task in industrial processes. A selective generative adversarial network (SGAN)-based support vector regression (SGAN-SVR) soft sensor is proposed for quality prediction using limited labeled training data. Specifically, SVR is considered as a base prediction model. The Wasserstein GAN (WGAN) is adopted to capture the distribution of available labeled data and generate virtual candidates. Subsequently, using a proposed similarity measurement strategy, those synthetic data with more information are selected and introduced into the training set. Using the designed data augmentation approach, the SGAN-SVR model can achieve better prediction performance compared with the SVR soft sensor. The quality prediction results on an industrial polyethylene process demonstrate the effectiveness and advantages of the proposed method.
在工业过程中,使用有限的标记样品开发可靠的软传感器并不是一件容易的事。提出了一种基于选择性生成对抗网络(SGAN)的支持向量回归(SGAN- svr)软传感器,用于有限标记训练数据的质量预测。具体来说,SVR被认为是一个基本的预测模型。采用Wasserstein GAN (WGAN)捕获可用标记数据的分布并生成虚拟候选数据。然后,使用提出的相似度度量策略,选择具有更多信息的合成数据并将其引入训练集。采用设计的数据增强方法,与SVR软传感器相比,SGAN-SVR模型具有更好的预测性能。对某工业聚乙烯生产过程的质量预测结果表明了该方法的有效性和优越性。
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引用次数: 2
Residual Channel Attention Connection Network for Reference-based Image Super-resolution 基于参考的图像超分辨率残差通道注意连接网络
Ruirong Lin, Nangfeng Xiao
Compared with single image super-resolution (SISR), reference-based image super-resolution (RefSR) utilizes additional references (Ref) to recover more realistic texture details, achieving better reconstruction performance. Most recent works focus on transferring relevant texture features from Ref to low-resolution (LR) images. However, those works ignore the high-frequency information existing in the LR space, leading to performance degradation when irrelevant Ref images are given. To address this issue, we propose a residual channel attention connection network for reference-based image super-resolution (RCACSR), which fuses valuable high-frequency information in LR space with high-resolution (HR) texture details of Ref. Specifically, the proposed residual channel attention connection network (RCACN) can extract more complex features from the LR space. Moreover, an enhanced texture transformer is presented, which can search and transfer texture features more accurately from Ref. Extensive experiments have demonstrated that the proposed RCACSR is superior to the state-of-the-art approaches in the aspects of both quantitative and qualitative measurements.
与单图像超分辨率(SISR)相比,基于参考的图像超分辨率(RefSR)利用额外的参考(Ref)来恢复更真实的纹理细节,获得更好的重建性能。最近的工作主要集中在将相关纹理特征从Ref转移到低分辨率(LR)图像上。然而,这些工作忽略了存在于LR空间中的高频信息,当给出不相关的Ref图像时,导致性能下降。为了解决这一问题,我们提出了一种基于参考图像超分辨率(racsr)的剩余通道注意连接网络,该网络融合了LR空间中有价值的高频信息和参考图像的高分辨率(HR)纹理细节。具体而言,所提出的剩余通道注意连接网络(racn)可以从LR空间中提取更复杂的特征。此外,提出了一种增强的纹理转换器,可以更准确地从参考文献中搜索和传递纹理特征。大量的实验表明,所提出的racsr在定量和定性测量方面都优于现有的方法。
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引用次数: 2
期刊
2021 8th International Conference on Information, Cybernetics, and Computational Social Systems (ICCSS)
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