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2021 11th International Conference on Intelligent Control and Information Processing (ICICIP)最新文献

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Unsupervised Assisted Sleep staging Classification Algorithm under Fuzzy Few Samples 模糊少样本下的无监督辅助睡眠分期分类算法
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642196
Kangning Yin, Rui Zhu, Shaoqi Hou, Guangqiang Yin
Sleep staging has a strong reference value in modern medicine for doctors to judge patients’ physical and mental state and provide treatment advice. However, in reality, according to the original information of sleep Electroencephalogram (EEG), it is difficult for doctors to manually judge, and sleep staging samples are difficult to obtain, so the data is few. At the same time, the robustness of the sleep staging model obtained only by individual learning is poor. In order to solve the problem of using fuzzy few samples to design the sleep staging prediction model to provide accurate sleep staging information for doctors, an unsupervised auxiliary algorithm model is designed. Firstly, according to the data characteristics of sleep EEG signals, low-pass filtering and fast Fourier transform were performed on the EEG signals recorded during sleep. Sleep stages are performed according to the frequency parameters, and normalization is performed to highlight the wave characteristics of different components. Secondly, due to the existence of different sample data in each stage, unsupervised samples are classified and corrected by K-Means clustering method, and a more robust model is trained under the premise of ensuring the diversity of training samples. Finally, the data set divided by clustering is sent to Support Vector Machine (SVM) classification learning, and the Gaussian kernel function is used to achieve high-dimensional mapping, which can reduce the impact of deviation from the center data on the sample center. The sleep staging classification algorithm designed in this paper can classify the sleep staging under the condition of fuzzy few samples, in the case of equal proportion of training set and test set, the correct rate is higher than 90 %, and in very few samples, the classification accuracy is more than 85 %.
睡眠分期在现代医学中对于医生判断患者的身心状态,提供治疗建议具有很强的参考价值。但现实中,根据睡眠脑电图(EEG)的原始信息,医生难以人工判断,睡眠分期样本难以获取,数据较少。同时,仅通过个体学习获得的睡眠分期模型鲁棒性较差。为了解决使用模糊少样本设计睡眠分期预测模型,为医生提供准确的睡眠分期信息的问题,设计了一种无监督辅助算法模型。首先,根据睡眠脑电信号的数据特点,对记录的睡眠脑电信号进行低通滤波和快速傅立叶变换;根据频率参数执行睡眠阶段,并进行归一化以突出不同分量的波特征。其次,由于每个阶段存在不同的样本数据,采用K-Means聚类方法对无监督样本进行分类和校正,在保证训练样本多样性的前提下训练出更加鲁棒的模型。最后将经过聚类划分的数据集发送给支持向量机(SVM)分类学习,利用高斯核函数实现高维映射,可以减少偏离中心数据对样本中心的影响。本文设计的睡眠分期分类算法可以在模糊样本较少的情况下对睡眠分期进行分类,在训练集和测试集比例相等的情况下,正确率高于90%,在极少量样本下,分类准确率超过85%。
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引用次数: 0
Adaptive Sliding Mode Synchronization of Different Hyperjerk Chaotic Systems Using RBF Neural Network 基于RBF神经网络的超跳混沌系统自适应滑模同步
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642190
Baojie Zhang
In this paper, we consider the synchronization of hyperjerk chaotic systems with different structures. Besides the order, the systems are unknown with external disturbances. We use sliding mode control method to deal with the external disturbances. Radial basis function (RBF) neural network is proposed to approximate the unknown system. Based on RBF neural network, adaptive sliding mode synchronization of different hyperjerk chaotic systems are introduced. Numerical results show the effectiveness of the synchronization scheme.
研究了具有不同结构的超跳混沌系统的同步问题。除了阶数外,系统在外界干扰下是未知的。我们采用滑模控制方法来处理外部干扰。提出径向基函数(RBF)神经网络来逼近未知系统。基于RBF神经网络,介绍了不同类型超跳混沌系统的自适应滑模同步。数值结果表明了该同步方案的有效性。
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引用次数: 0
A Competition Model for Modeling and Describing Matthew Effect in Computational Social Systems 计算社会系统中马太效应的竞争模型
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642207
Jinyuan Zhang, Lin Wei, Meng Liu, Yubo Deng
In this article, a competition model is used to analyze and describe the Matthew effect in social systems. The competition between n participants results in only k winners and the others are reduced to losers. Using the market competition as an example, the model describes the variety of each opinion and the influence of the market environment on it. The model is analyzed through the characteristics of competitive activities and related social phenomena. It was used to simulate changes in competition between dynamic opinions. Eventually, a certain number of opinions win the competition and reach monopoly status. Simulation results demonstrate the efficacy and feasibility of the social competition model.
本文采用一个竞争模型来分析和描述社会制度中的马太效应。n个参与者之间的竞争只会产生k个赢家,其他人都是输家。该模型以市场竞争为例,描述了各种意见的多样性以及市场环境对其的影响。该模型通过竞争活动的特点和相关社会现象进行分析。它被用来模拟动态意见之间竞争的变化。最终,一定数量的意见在竞争中胜出,达到垄断地位。仿真结果验证了该社会竞争模型的有效性和可行性。
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引用次数: 2
An improved Rapidly-exploring Random Tree Approach for Robotic Dynamic Path Planning 机器人动态路径规划中一种改进的快速探索随机树方法
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642182
Kung-Ting Wei, Yaojun Chu, Haiyun Gan
Aiming at solving the issue that the existing Rapidly-exploring Random Tree (RRT) algorithm cannot well replan the paths to avoid dynamic obstacles for robotic manipulator autonomously and rapidly in complex cluttered environments, three-dimensional reconstruction of the global dynamic scene around the robotic manipulator is carried out based on RGB-D visual sensor in this paper. A Bi-RRT-Star dynamic path planning approach based on improved exploring function with goal direction is proposed, which is improved from connection strategy, heuristic intensive exploring, and adjacent nodes expansion. On this basis, a multi-step expansion strategy with heuristic greedy is presented. Finally, the relevant evaluation indices of the proposed approach are verified in Virtual Robot Environment Platform (VREP) software. The simulation results show that in comparison with Bi-RRT and RRT-Star algorithms, the proposed method has a higher success rate in dynamic path planning online with less planning time and lower trajectory cost. In addition, a realistic experiment is designed to make UR robotic manipulator avoid human arm random motions dynamically. The experimental results show that the proposed method successfully realizes that robotic manipulator can avoid continuous moving obstacles of human arm online smoothly, comprehensively verifying the effectiveness and superiority.
针对现有快速探索随机树(rapid -exploring Random Tree, RRT)算法在复杂杂乱环境中无法自主快速地重新规划机械臂避开动态障碍物的路径的问题,本文基于RGB-D视觉传感器对机械臂周围全局动态场景进行了三维重建。从连接策略、启发式密集探索和相邻节点扩展三个方面进行改进,提出了一种基于改进的带目标方向探索函数的Bi-RRT-Star动态路径规划方法。在此基础上,提出了一种带有启发式贪婪的多步展开策略。最后,在虚拟机器人环境平台(VREP)软件中对所提方法的相关评价指标进行了验证。仿真结果表明,与Bi-RRT和RRT-Star算法相比,该方法具有较高的在线动态路径规划成功率,规划时间短,轨迹成本低。此外,还设计了一个现实实验,使UR机械臂能够动态地避免人臂的随机运动。实验结果表明,所提方法成功地实现了机械臂能够在线顺利避开人臂连续移动障碍物,全面验证了该方法的有效性和优越性。
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引用次数: 0
Discrete-Time ZND Algorithms for Time-Dependent LQ Decomposition Applied to Sound Source Localization 时变LQ分解的离散ZND算法在声源定位中的应用
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642202
Jinjin Guo, Yunong Zhang
To solve discrete-time LQ decomposition (DTLQD) problem, a 5-step Adams-Bashforth-type (5SAB-type) discrete-time zeroing neural dynamics (DTZND) algorithm is proposed by combining 5-step Adams-Bashforth (AB) method with continuous-time zeroing neural dynamics (CTZND) model. For comparison, general 4-step and 3-step Zhang et al. discretization (ZeaD) formulas are also presented and used to discretize the CTZND model. The corresponding 4-step ZeaD-type (4SZeaDtype) and 3-step ZeaD-type (3SZeaD-type) DTZND algorithms are thus developed. Theoretical analyses and results show that the proposed 5SAB-type DTZND algorithm has higher computational precision than the 4SZeaD-type and 3SZeaD-type DTZND algorithms. Two numerical examples further validate the availability of the three DTZND algorithms and the superiority of the proposed 5SAB-type DTZND algorithm. Moreover, the proposed DTZND algorithms are applied to the sound source localization based on the time difference of arrival (TDOA) technique.
为了解决离散时间LQ分解(DTLQD)问题,将5步Adams-Bashforth (AB)方法与连续时间归零神经动力学(CTZND)模型相结合,提出了一种5步Adams-Bashforth-type (5ab -type)离散时间归零神经动力学(DTZND)算法。为了比较,Zhang等人还提出了一般的4步和3步离散化(ZeaD)公式,并将其用于CTZND模型的离散化。由此提出了相应的4步ZeaD-type (4SZeaDtype)和3步ZeaD-type (3SZeaD-type) DTZND算法。理论分析和结果表明,5ab型DTZND算法比4szead型和3szead型DTZND算法具有更高的计算精度。两个算例进一步验证了三种DTZND算法的有效性以及所提出的5ab型DTZND算法的优越性。并将所提出的DTZND算法应用于基于到达时差(TDOA)技术的声源定位。
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引用次数: 0
Multiple-instance CNN Improved by S3TA for Colon Cancer Classification with Unannotated Histopathological Images S3TA改进的多实例CNN对未注释的组织病理图像进行结肠癌分类
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642206
Tiange Ye, Rushi Lan, Xiaonan Luo
In this paper, we propose a new method for colon cancer classification from histopathological images, which can automatically analyze a given whole slide image (WSI). We usually classify cancer classification by referring a WSI, which is typically 20000 × 20000 pixels. The cost of obtaining WSIs with annotating cancer regions is very high. Multiple-instance learning (MIL) is a variant of supervised learning in which the instances in a bag share a single class label. That is, MIL only needs unannotated WSI. In recent years, MIL has developed a hard attention mechanism which has achieved good performance. However, this hard attention mechanism cannot notice the interior of each patch, i.e., it lacks soft attention mechanism. In this paper, a soft, sequential, spatial, top-down attention mechanism (which we abbreviate as S3TA) is used to make up for the lack of MIL attention mechanism. Finally, our experiments show that by varying the number of attention steps in S3TA, we achieved a better accuracy of 93.6% than the old model.
本文提出了一种基于组织病理图像的结肠癌分类新方法,该方法可以自动分析给定的整张幻灯片图像(WSI)。我们通常通过参考WSI来进行癌症分类,WSI一般为20000 × 20000像素。获得带有癌症区域注释的wsi的成本非常高。多实例学习(MIL)是监督学习的一种变体,其中包中的实例共享单个类标签。也就是说,MIL只需要未注释的WSI。近年来,MIL发展了一种硬注意机制,并取得了良好的效果。然而,这种硬注意机制无法注意到每个斑块的内部,即缺乏软注意机制。本文采用了一种软的、顺序的、空间的、自上而下的注意机制(简称S3TA)来弥补MIL注意机制的不足。最后,我们的实验表明,通过改变S3TA中注意步骤的数量,我们获得了比旧模型更好的93.6%的准确率。
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引用次数: 1
Application Research on Prediction of Weld Ultrasonic Inspection Results Based on EasyEnsemble and XGBoost Algorithm 基于EasyEnsemble和XGBoost算法的焊缝超声检测结果预测应用研究
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642193
Yu Chen, Liang Chen, Yan Wang, Yu Zheng, Huade Su
To reduce the missed inspection rate of unqualified welded seams of the hull, a model based on EasyEnsemble and XGBoost algorithm is proposed to predict the ultrasonic inspection results of welds. Based on historical data of weld ultrasonic inspection, parameters related to the welding quality were selected and these parameters were processed by feature engineering such as normalization and coding. Then effective features were extracted as the model input by principal component analysis (PCA). Considering the low recall of negative samples caused by extremely unbalanced sample data distribution, the EasyEnsemble algorithm was adopted to obtain a balanced training sample set and XGBoost algorithm was used as the base classification model of EasyEnsemble algorithm. The validity of the proposed model was proved by the experiment, the recall of negative samples was greatly improved and the missed inspection rate of unqualified welds was reduced.
为了降低船体不合格焊缝的漏检率,提出了一种基于EasyEnsemble和XGBoost算法的焊缝超声检测结果预测模型。根据焊缝超声探伤的历史数据,选取与焊接质量有关的参数,并对这些参数进行归一化、编码等特征工程处理。然后通过主成分分析(PCA)提取有效特征作为模型输入。考虑到样本数据分布极不平衡导致负样本召回率低的问题,采用EasyEnsemble算法获得平衡的训练样本集,并采用XGBoost算法作为EasyEnsemble算法的基本分类模型。实验证明了该模型的有效性,大大提高了不良样品的召回率,降低了不合格焊缝的漏检率。
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引用次数: 1
Analysis and Comparison of the Structure and Performance of Local Neural Networks 局部神经网络结构与性能的分析与比较
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642169
S. Cong, Kezhi Li
The paper synthesizes the local neural networks. Network structures and their activation functions of three local networks CMAC, B-spline, RBF that are often used to approach functions are analyzed and compared in detail. The network structure of ART-2 is also discussed. Based on the fuzzy system of these local networks, the paper depicts their fuzzy structures and performances. The study and analysis in the paper are useful to instruct to select and design the local neural networks.
本文综合了局部神经网络。对常用的三种局部网络CMAC、b样条和RBF的网络结构及其激活函数进行了详细的分析和比较。本文还讨论了ART-2的网络结构。本文以这些局部网络的模糊系统为基础,描述了它们的模糊结构和模糊性能。本文的研究和分析对局部神经网络的选择和设计具有指导意义。
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引用次数: 0
Fast Particle Swarm optimization for Balanced Clustering 平衡聚类的快速粒子群优化
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642162
Meng Zhang, Yao Xiao, Xiaoling Song, Xiangguang Dai, Nian Zhang
There are balanced priorities in various engineering fields (e.g. medicine, statistics, artificial intelligence, and economics, etc.). Some clustering algorithms cannot maintain the natural balanced structure of data. This paper proposes a soft-balanced clustering framework, which can achieve a balanced clustering for each cluster. The model can be formulated d as a mixed-integer optimization problem. We transform the problem into several subproblems and utilize PSO to search the global solution. Experiments show that the proposed algorithm can achieve satisfactory clustering results than other clustering algorithms.
在不同的工程领域(如医学、统计学、人工智能和经济学等)有平衡的优先级。一些聚类算法不能保持数据的自然平衡结构。本文提出了一种软平衡聚类框架,可以实现每个集群的均衡聚类。该模型可表述为一个混合整数优化问题。将该问题分解为若干子问题,利用粒子群算法搜索全局解。实验表明,与其他聚类算法相比,该算法可以获得满意的聚类结果。
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引用次数: 1
Two-stage Multi-frame Cooperative Quality Enhancement on Compressed Video 压缩视频的两阶段多帧协同质量增强
Pub Date : 2021-12-03 DOI: 10.1109/ICICIP53388.2021.9642200
Shengjie Chen, Mao Ye
With the great success of deep learning network, compressed video quality enhancement methods based on deep learning are mushrooming. Most of these methods ignore the correlation between frames and do not make full use of the information of adjacent frames. We propose a two-stage multi-frame cooperative quality enhancement network. Our method consist of two main modules: motion compensation network and quality enhancement network. We use a two-stage enhanced structure to make full use of high-quality frames information and realize the multi-frame cooperative enhancement of a Group of Pictures(GOP), fully considering the correlation between frames. The experimental results on the HEVC standard test sequences show that the proposed method is improved by about 10% compared with MFQE2.0.
随着深度学习网络的巨大成功,基于深度学习的压缩视频质量增强方法如雨后春笋般涌现。这些方法大多忽略了帧之间的相关性,没有充分利用相邻帧之间的信息。提出了一种两阶段多帧协同质量提升网络。该方法包括两个主要模块:运动补偿网络和质量增强网络。我们采用两级增强结构,充分利用高质量的帧信息,在充分考虑帧间相关性的情况下,实现一组图像(GOP)的多帧协同增强。在HEVC标准测试序列上的实验结果表明,该方法比MFQE2.0提高了约10%。
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引用次数: 1
期刊
2021 11th International Conference on Intelligent Control and Information Processing (ICICIP)
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