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2021 International Conference on Computer Engineering and Application (ICCEA)最新文献

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Design of an EIT-based flexible tactile sensor with center electrodes 基于eit的中心电极柔性触觉传感器设计
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00105
Yucheng He, Xinyan Li, Rui Li
For large area robot skin design, the distribution of rigid components and wires in traditional array sensors leads to the decrease of the flexibility and extensibility. The flexible sensors based on non-invasive electrical impedance tomography (EIT) can avoid these shortcomings. However, the number, position and driving pattern of the central electrode will have a great impact on the performance of the sensor. Multi-walled carbon nanotubes (MWCNTs) are used as filler materials to prepare flexible materials. Different numbers of central electrodes are introduced into the traditional 16-electrode flexible sensor. The corresponding driving pattern is designed and the position error is taken as the evaluation index to carry out comparative experiments. The simulation and experimental results show that the 18-electrode flexible sensor with two central electrodes has the best detection performance, and the detection position error can be reduced by 57.6% at the optimal position of the central electrodes at 0.24 from the center of the circle. The optimal design of the central electrode can effectively improve the performance of the flexible sensor, which has a certain guiding significance for the design of large area robot skin.
对于大面积机器人皮肤设计,传统阵列传感器中刚性元件和导线的分布导致其灵活性和可扩展性降低。基于无创电阻抗断层成像(EIT)的柔性传感器可以避免这些缺点。然而,中心电极的数量、位置和驱动方式对传感器的性能有很大的影响。多壁碳纳米管(MWCNTs)是制备柔性材料的填料。传统的16电极柔性传感器引入了不同数量的中心电极。设计了相应的驱动方式,并以位置误差为评价指标进行了对比实验。仿真和实验结果表明,具有两个中心电极的18电极柔性传感器具有最佳的检测性能,在中心电极距圆心0.24处的最佳位置,检测位置误差可降低57.6%。中心电极的优化设计可以有效地提高柔性传感器的性能,对大面积机器人皮肤的设计具有一定的指导意义。
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引用次数: 0
ERNIE-BiLSTM Based Chinese Text Sentiment Classification Method 基于ERNIE-BiLSTM的中文文本情感分类方法
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00024
Haiyuan Guo, Chengying Chi, Xuegang Zhan
For the Chinese text sentiment classification task, the preprocessing based on deep learning models cannot retain the information and polysemy of the word in the sentence well. So this paper adopts the newly developed ERNIE [1–2] (Knowledge Enhanced Semantic Representation) pre-training model from Baidu, which is based on word feature input modeling, not only enhances the semantic representation of the word, but also preserves the contextual information of the word and the polysemy of the word. After pre-training by ERNIE model, the output word vector is used as the input of BiLSTM (bidirectional long and short-term memory network) model for training and obtaining sentiment classification results. The accuracy rate of Ernie bilstm model is 92.35% after verification on nlpcc2014 microblog sentiment analysis sample data set, which proves that the model has good performance in Chinese text sentiment classification task.
对于中文文本情感分类任务,基于深度学习模型的预处理不能很好地保留句子中单词的信息和多义词。因此本文采用了百度新开发的ERNIE [1-2] (Knowledge Enhanced Semantic Representation,知识增强语义表示)预训练模型,该模型基于单词特征输入建模,既增强了单词的语义表示,又保留了单词的上下文信息和单词的多义性。经ERNIE模型预训练后,将输出的词向量作为BiLSTM(双向长短期记忆网络)模型的输入,进行训练并获得情感分类结果。在nlpcc2014微博情感分析样本数据集上验证,Ernie bilstm模型的准确率为92.35%,证明该模型在中文文本情感分类任务中具有良好的性能。
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引用次数: 4
CNN-based MRI Brain Tumor Detection Application 基于cnn的MRI脑肿瘤检测应用
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00097
Hongli Chen, Di Chen, Luyao Wang
Brain tumors are usually diagnosed manually by the doctors from the Magnetic Resonance Images, which decreases the efficiency of the diagnosis process. Facing the situation that diagnosis of brain tumors from Magnetic Resonance Images needs effective methods to increase the speed and enhance the accuracy, we proposed algorithms using Convolutional Neural Network, the MobileNet, and AlexNet models to help classify the tumor while also developed an interface system to connect the algorithm directly to hospital system. We utilized grouped dataset and developed the algorithm to classify whether there is brain tumor occurred in the Magnetic Resonance images. The patients can employ the interface system developed through Tkinter by simply typing the information and automatically get the final results appears on the screen. From our result, compared with other models such as MobileNet and AlexNet, the proposed Convolutional Neural Network algorithm reaches the highest accuracy and lowest loss. Our interface system enables the patients of the hospital to directly and conveniently access the diagnosis of our algorithm.
脑肿瘤通常由医生根据磁共振图像进行人工诊断,这降低了诊断过程的效率。针对磁共振图像诊断脑肿瘤需要有效的方法来提高速度和准确性的情况,我们提出了使用卷积神经网络、MobileNet和AlexNet模型对肿瘤进行分类的算法,并开发了一个接口系统,将算法直接连接到医院系统。我们利用分组数据集,开发了对磁共振图像中是否存在脑肿瘤进行分类的算法。患者可以使用通过Tkinter开发的界面系统,只需输入信息,最终结果就会自动出现在屏幕上。从我们的结果来看,与MobileNet和AlexNet等其他模型相比,本文提出的卷积神经网络算法达到了最高的准确率和最低的损失。我们的接口系统使医院的患者能够直接方便地访问我们算法的诊断。
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引用次数: 2
Few-shot Image Classification based on LMRNet 基于LMRNet的少拍图像分类
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00019
Yu Chen, Junjie Liu, Yuanzhuo Li
Few-shot image classification aims at recognizing image categories with only a few labeled examples. The metric-based model is commonly used in few-shot learning. But restricted by needing a large amount of memory in training process, existing highly efficient backbone network cannot be used and light weight Residual Network performs not well. So we construct a new light weight network based on the idea of multi-scale analyzation as the feature extractor. We test it on several public datasets and it can run effectively under existing public equipment and provides better efficiency compared with ResNet with the same number of layers.
少量图像分类的目的是识别只有少量标记样本的图像类别。基于度量的模型通常用于少次学习。但受训练过程中需要大量内存的限制,现有的高效骨干网无法发挥作用,轻量级残差网络的性能也不理想。因此,我们基于多尺度分析的思想构建了一种新的轻量级网络作为特征提取器。我们在多个公共数据集上进行了测试,它可以在现有的公共设备下有效运行,并且与相同层数的ResNet相比,它提供了更好的效率。
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引用次数: 0
Wireless sensor network data compression sampling technology based on unbalanced data collaborative filtering 基于非平衡数据协同滤波的无线传感器网络数据压缩采样技术
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00046
Donghua Zheng, Weirong Xiu, Lizhu Ye
In order to improve the data acquisition capability of wireless sensor networks, a data compression sampling technology based on unbalanced data collaborative filtering is proposed. Establishing a data compression sampling state feature analysis model, designing a linear kernel function, a probability density feature kernel function and a Gaussian kernel function for wireless sensor network communication transmission data compression sampling, realizing wireless sensor network data compression and feature separation by an unbalanced data collaborative filtering method, constructing a boundary solution vector function for data compression sampling by adopting a support vector machine model, and realizing classification processing after data feature compression by adopting a fuzzy c-means clustering analysis method. Combined with threshold judgment method, the filtering analysis and subspace noise reduction of wireless sensor network data compression are realized, and the unbalanced data collaborative filtering detection model is constructed. According to the data feature detection results, the wireless sensor network data compression sampling is realized. The simulation results show that the feature clustering of wireless sensor network data compression sampling is better and the data detection accuracy is higher.
为了提高无线传感器网络的数据采集能力,提出了一种基于非平衡数据协同滤波的数据压缩采样技术。建立数据压缩采样状态特征分析模型,设计无线传感器网络通信传输数据压缩采样的线性核函数、概率密度特征核函数和高斯核函数,通过非平衡数据协同滤波方法实现无线传感器网络数据压缩和特征分离;采用支持向量机模型构造数据压缩采样的边界解向量函数,采用模糊c均值聚类分析方法实现数据特征压缩后的分类处理。结合阈值判断方法,实现了无线传感器网络数据压缩的滤波分析和子空间降噪,构建了非平衡数据协同滤波检测模型。根据数据特征检测结果,实现了无线传感器网络数据压缩采样。仿真结果表明,无线传感器网络数据压缩采样的特征聚类效果较好,数据检测精度较高。
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引用次数: 0
Using the Solution Space Constraint to Pick the Best Velocity Automatically 利用解空间约束自动选取最佳速度
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00054
Shao-yu Lv, Mu-yuan Jiang, Yuzhuo Chen, Yunsheng Wang
Picking the best velocity from the velocity spectrum is one of the keys to process seismic data. Aiming at the problems of lower efficiency of manual picking and poor precision of general automatic picking, a solution space constraint method to pick the best velocity automatically was proposed. Firstly, according to the signal similarity coefficient criterion, the original velocity solution space P is constrained to obtain the space P’; Secondly, using the signal in-phase criterion perform the peak match based on kd-Tree’s nearest neighbor search, the space P’ is changed into the space P” by the matching results; Finally, in accordance with the objective function, the automatic picking of the optimal velocity is achieved by the improved particle swarm model in constraint space P”. Experimental results show that the calculation speed of this algorithm is faster, and the error between the automatic picking result and the real reflected signal value is smaller, which meets the needs of actual engineering.
从速度谱中选取最佳速度是处理地震资料的关键之一。针对人工采摘效率低、一般自动采摘精度差的问题,提出了一种求解空间约束的自动采摘最佳速度方法。首先,根据信号相似系数判据,对原速度解空间P进行约束,得到空间P′;其次,利用信号同相准则进行基于kd-Tree最近邻搜索的峰值匹配,根据匹配结果将空间P′变换为空间P′;最后,根据目标函数,利用改进的粒子群模型在约束空间P”中实现了最优速度的自动拾取。实验结果表明,该算法计算速度较快,自动拾取结果与真实反射信号值误差较小,满足工程实际需要。
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引用次数: 0
Research on Visualization Method of Large-scale User Location Distribution Based on CesiumJS 基于CesiumJS的大规模用户位置分布可视化方法研究
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00033
W. Yuan, S. Jianwei
In order to cater to the advanced user positioning function of the Beidou satellite navigation system, the simulated domestic positioning point data is used to realize the visualization of user distribution in the form of a heat map through the Webside 3D visualization technology. In the case of a large amount of rendering data, by optimizing the kernel density estimation algorithm and optimizing the calculation method of the data points in the raster, the effect of real-time rendering of the heat map in the optimal display form is realized with the change of the viewpoint position, and the rendering Performance has been significantly improved.
为了迎合北斗卫星导航系统先进的用户定位功能,利用模拟的国内定位点数据,通过Webside三维可视化技术,以热图的形式实现用户分布的可视化。在渲染数据量较大的情况下,通过优化核密度估计算法和优化栅格中数据点的计算方法,实现了随视点位置变化而以最优显示形式实时渲染热图的效果,显著提高了渲染性能。
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引用次数: 0
Multi resource inventory automatic coordination model of Supply Chain Based on Artificial Intelligence 基于人工智能的供应链多资源库存自动协调模型
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00017
Limei Wu, Heng Yue, Honghong Hu
Aiming at the problem of measuring the degree of supply chain resource coordination, based on the synergetics theory, an artificial intelligence based supply chain multi resource inventory automatic coordination model is constructed. By constructing five index systems of supply chain logistics, capital flow, information flow, market flow and management flow of artificial intelligence, this paper makes an empirical study on the application of the model. The results show that the measurement model of the degree of supply chain resource coordination can reflect the degree and trend of the coordinated development of the supply chain system, and the specific reasons for the low degree of supply chain coordination can be found through the analysis, which is conducive to the targeted and fundamental improvement of enterprises. The supply chain multi resource inventory automatic coordination model based on artificial intelligence not only makes up for the lack of qualitative research in the existing coordination degree model, but also has great significance for guiding the actual operation of the supply chain.
针对供应链资源协调程度的度量问题,基于协同理论,构建了基于人工智能的供应链多资源库存自动协调模型。本文通过构建供应链物流、资金流、信息流、市场流和人工智能管理流五个指标体系,对模型的应用进行了实证研究。结果表明,供应链资源协调度的度量模型能够反映供应链系统协调发展的程度和趋势,通过分析可以找到供应链协调度低的具体原因,有利于企业有针对性的、根本性的改进。基于人工智能的供应链多资源库存自动协调模型不仅弥补了现有协调度模型定性研究的不足,而且对指导供应链的实际运行具有重要意义。
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引用次数: 0
Meta-learning Based Breast Abnormality Classification on Screening Mammograms 基于元学习的乳腺异常分类筛查
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00038
Yu Wang, Mingjie Song, Xinyu Tian
General breast cancer detection contains two steps, the breast abnormality classification, and the diagnostic classification. The determination of the abnormality contributes further to the following steps, and computational technologies can aid in the process. A lot of machine learning methods have been applied to automate the detection. However, most of them focus on the diagnostic classification and the breast abnormality classification only attracts little attention. The insufficient size of public mammogram datasets also limits the performance of many machine learning algorithms. Considering the importance of breast abnormality classification and the shortage of public large-scale medical datasets, we proposed a meta-learning-based breast abnormality classification method. Our model referred to the latest work of meta-learning-based image classifier and modified it. Specifically, we applied the idea of meta-learning to retrain a pretrained embedding neural network in order to adapt its feature extraction ability to the CBIS-DDSM dataset [1]. The dataset contains two types of abnormal breast mammograms, mass and calcification, and each type is made of two categories of medical images, full mammograms, and ROI [2]. The application of the data augmentation techniques and the idea of meta-learning helped to deal with the insufficient training sample problem and showed a final accuracy of 76%, which beat the 71% accuracy reached by a neural network baseline model.
一般乳腺癌的检测包括两个步骤,乳房异常分类和诊断分类。异常的确定有助于进一步的后续步骤,计算技术可以在此过程中提供帮助。许多机器学习方法已被应用于自动检测。然而,这些研究大多集中在诊断分类上,而乳腺异常分类却很少受到重视。公共乳房x光片数据集的不足也限制了许多机器学习算法的性能。考虑到乳房异常分类的重要性和公共大规模医疗数据集的不足,我们提出了一种基于元学习的乳房异常分类方法。我们的模型参考了基于元学习的图像分类器的最新成果并对其进行了改进。具体来说,我们应用元学习的思想来重新训练预训练的嵌入神经网络,以使其特征提取能力适应CBIS-DDSM数据集[1]。该数据集包含肿块和钙化两种类型的乳房异常乳房x光片,每种类型由两类医学图像、全乳房x光片和ROI组成[2]。
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引用次数: 3
Robust Attack with Adaptive Compress Adversarial Perturbations 自适应压缩对抗摄动的鲁棒攻击
Pub Date : 2021-06-01 DOI: 10.1109/ICCEA53728.2021.00071
Jinping Su, L. Jing
Adversarial examples expose the vulnerability of deep neural networks that perform well in various fields. However, adversarial perturbations crafted by the existing attack methods are often aimed at the whole image. They are usually random, and the human eye can even easily perceive some of them. This paper proposes an adaptive method to compress the adversarial perturbation. Under the premise of ensuring the success of attacks, generating perturbations as small as possible to change the decision of classifiers. First, the authors find the minimum point of loss function by the optimization method, to expand the spanning space of adversarial examples. Calculating and selecting the smaller perturbation between this point and the original input. Then, in order to retain the useful perturbation and remove redundancy, the authors look for important regions in the input data that determine the network predict results, and construct an importance mask for the smaller perturbation of the previous stage. Extensive experiments on the ImageNet dataset and multiple network classifiers show that our method is effective. Compared with advanced attack methods, the $mathbf{L}_{2}$ distance of adversarial perturbation obtained by our method is smaller and more practical, and the generated adversarial examples have strong transferability.
对抗性示例暴露了在各个领域表现良好的深度神经网络的脆弱性。然而,由现有攻击方法制作的对抗性扰动通常针对整个图像。它们通常是随机的,人眼甚至可以很容易地感知到其中的一些。提出了一种自适应压缩对抗性扰动的方法。在保证攻击成功的前提下,产生尽可能小的扰动来改变分类器的决策。首先,利用优化方法找到损失函数的最小值点,扩大对抗性实例的生成空间。计算并选择该点与原始输入之间较小的摄动。然后,为了保留有用的扰动并去除冗余,作者在输入数据中寻找决定网络预测结果的重要区域,并对前一阶段较小的扰动构造重要掩码。在ImageNet数据集和多个网络分类器上的大量实验表明,我们的方法是有效的。与先进的攻击方法相比,本文方法得到的对抗扰动的$mathbf{L}_{2}$距离更小,更实用,生成的对抗示例具有较强的可移植性。
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引用次数: 0
期刊
2021 International Conference on Computer Engineering and Application (ICCEA)
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