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2021 11th International Conference on Information Technology in Medicine and Education (ITME)最新文献

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Dependent Hamacher Aggregation Operators for Complex q-Rung Orthopair Fuzzy Sets and Their Application 复q-Rung正形模糊集的相关Hamacher聚合算子及其应用
Wei-Hua Liu, Ling Li
Complex q-rung orthopair fuzzy sets (Cq-ROFS) become one of the effective tools to deal with unresolved and complex information. In recent years, a variety of multi-attribute decision making(MADM) methods have been developed in the Cq-ROFS environment, such as complex intuitionistic fuzzy set (CIFS) and complex Pythagorean fuzzy sets(CPFS). Cq-ROFS is superior to CIFs and CPFS, which can describe a wider range of uncertain information spaces. Therefore, this paper studies MADM based on Cq-ROFS. However, decision making experts may have personal biases. In order to reduce the influence of individual preference on decision-making, the dependent Hamacher aggregation operators for Complex q-rung orthopair fuzzy sets(Cq-ROFDHA) are proposed based on the Hamacher operation and dependent method. The operator can improve personal bias by assigning lower weights to biased evaluations (unduly high or unduly low values) and higher weights to mid values. Firstly, the basic operation rules, score function, distance and properties of Cq-ROFDHA are described. We then applied Cq-ROFDHA to service utility decisions for online health communities. Finally, we compare it with other aggregation factors. The results show that the Cq-ROFDHA operator has the advantages of consistency and superiority.
复q阶正形模糊集(Cq-ROFS)是处理复杂信息的有效工具之一。近年来,在Cq-ROFS环境下开发了多种多属性决策方法,如复杂直觉模糊集(CIFS)和复杂毕达哥拉斯模糊集(CPFS)。Cq-ROFS优于CIFs和CPFS,可以描述更大范围的不确定信息空间。因此,本文研究了基于Cq-ROFS的MADM。然而,决策专家可能有个人偏见。为了降低个体偏好对决策的影响,在Hamacher运算和依赖方法的基础上,提出了复q阶正形模糊集的依赖Hamacher聚合算子(Cq-ROFDHA)。操作者可以通过将较低的权重分配给有偏差的评估(过高或过低的值)和较高的权重分配给中间值来改善个人偏见。首先,介绍了Cq-ROFDHA的基本操作规则、评分函数、距离和性质。然后,我们将Cq-ROFDHA应用于在线健康社区的服务效用决策。最后,将其与其他聚集因子进行比较。结果表明,Cq-ROFDHA算子具有一致性和优越性。
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引用次数: 1
[Copyright notice] (版权)
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引用次数: 0
DiDA: Iterative Boosting of Disentangled Synthesis and Domain Adaptation DiDA:解纠缠综合和领域自适应的迭代增强
Jinming Cao, Oren Katzir, Peng Jiang, D. Lischinski, D. Cohen-Or, Changhe Tu, Yangyan Li
Unsupervised domain adaptation aims at learning a shared model for two related domains by leveraging supervision from a source domain to an unsupervised target domain. A number of effective domain adaptation approaches rely on the ability to extract domain-invariant latent factors which are common to both domains. Extracting latent commonality is also useful for disentanglement analysis. It enables separation between the common and the domain-specific features of both domains, which can be recombined for synthesis. In this paper, we propose a strategy to boost the performance of domain adaptation and disentangled synthesis iteratively. The key idea is that by learning to separately extract both the common and the domain-specific features, one can synthesize more target domain data with supervision, thereby boosting the domain adaptation performance. Better common feature extraction, in turn, helps further improve the feature disentanglement and the following disentangled synthesis. We show that iterating between domain adaptation and disentangled synthesis can consistently improve each other on several unsupervised domain adaptation benchmark datasets and tasks, under various domain adaptation backbone models.
无监督域自适应的目的是利用源域到无监督目标域的监督,学习两个相关域的共享模型。许多有效的领域自适应方法依赖于提取两个领域共同的领域不变潜在因素的能力。提取潜在的共性对解纠缠分析也很有用。它支持两个领域的公共和特定于领域的特征之间的分离,这些特征可以重新组合以进行综合。在本文中,我们提出了一种迭代提高领域自适应和解纠缠综合性能的策略。关键思想是通过学习分别提取共同特征和特定领域特征,在监督下合成更多目标领域数据,从而提高领域自适应性能。更好的公共特征提取反过来又有助于进一步改进特征解纠缠和随后的解纠缠合成。研究表明,在不同的领域自适应骨干模型下,在多个无监督的领域自适应基准数据集和任务上,领域自适应和解纠缠综合之间的迭代可以持续地相互改进。
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引用次数: 1
Malware Identification Method Based on Image Analysis 基于图像分析的恶意软件识别方法
Yanhua Liu, Jiaqi Li, Baoxu Liu, Xiaoling Gao, Ximeng Liu
In this paper, we propose a malware identification method employed by image analysis and generative adversarial networks, designed to solve the problems of increasingly sophisticated attack forms, insufficient sample data in malware. Specifically, we first generate fixed-size gray images of malware, which neither disassembly nor code execution is required for identification. Moreover, we introduce generative adversarial networks into malware identification for few samples scenarios and malware variants. Through the game training of generator and discriminator, the malware detection model is obtained from the discriminator and the samples are generated by the generator for data augment. Finally, we demonstrate that the proposed method is efficient and feasible using extensive experiments.
本文提出了一种基于图像分析和生成对抗网络的恶意软件识别方法,旨在解决恶意软件中攻击形式日益复杂、样本数据不足的问题。具体来说,我们首先生成固定大小的恶意软件灰度图像,既不需要反汇编也不需要执行代码进行识别。此外,我们将生成对抗网络引入到恶意软件识别中,用于少数样本场景和恶意软件变体。通过生成器和鉴别器的博弈训练,由鉴别器得到恶意软件检测模型,由生成器生成样本进行数据扩充。最后,通过大量的实验验证了该方法的有效性和可行性。
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引用次数: 1
U -Net based on Feature Fusion for Rectal Cancer Image Segmentation 基于U -Net特征融合的直肠癌图像分割
Wan Yuqian, Ma Jianwei, Zang Shaofei
In order to solve the existing problems of low segmentation precision and obvious interference by background noise in the segmentation task of rectal cancer lesions, we propose an improved U-Net method based on feature fusion by U-Net network and weighted feature pyramid structure (W - FPN). First, the proportion of each pixel value in the final pixel is used to assign weights to strengthen the feature fusion ability and improve the segmentation effect by using the scale information in the fusion. Secondly, after the third network output layer, three serial depthwise separable dilated convolution layers with dilation rates of 1, 2 and 4 are added to enlarge the receptive field of feature image and make full use of image feature information. Finally, the improved model is compared with U-Net, SegNet and DeepLab segmentation models. The experimental results show that Our approach reaches good and stable results with a precision of 83.38% and the Dice similarity coefficient value of 92.56%.
针对直肠癌病变图像分割任务中存在分割精度低、背景噪声干扰明显等问题,提出了一种基于U-Net网络与加权特征金字塔结构(W - FPN)特征融合的改进U-Net方法。首先,利用融合中的尺度信息,利用最终像素中每个像素值的比例来分配权重,增强特征融合能力,提高分割效果;其次,在第三个网络输出层之后,增加三个扩展率分别为1、2、4的连续深度可分离的扩展卷积层,扩大特征图像的接受域,充分利用图像的特征信息。最后,将改进模型与U-Net、SegNet和DeepLab分割模型进行了比较。实验结果表明,我们的方法获得了良好稳定的结果,精度为83.38%,Dice相似系数值为92.56%。
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引用次数: 0
Research on the future development scheme of the oil big data industry 石油大数据产业未来发展方案研究
L. Zhen, Lin Guanjun, Li Shusheng, Wang Weibin, L. Xiaoming
At present, the big data industry is developing rapidly in many fields around the world, and it brings opportunities for the transformation and upgradation of the traditional oil industry. The whole oil business chain is of large scale, and there are urgent needs to apply big data technologies in the fields of petroleum exploration and development, transportation, refining and other fields. However, the oil big data industry is still in its infancy and has encountered many challenges, including oil data storage and management being not standardized, technical standards being not unified, and security concerns. These issues further lead to the poor data sharing, repeated business deployment within the enterprise and the compromised of the systems. To solve the problems above, this paper proposes the overall architecture for the development of the oil big data industry. The architecture scheme integrates all the data and business of the oil industry chain, which allows the secure data sharing, effective business management and scientific allocation of resources. Therefore, the oil big data solution can provide an important research idea for the dynamic management of production process and industrial business, which improves the overall productivity of oil industry.
当前,大数据产业在全球多个领域迅猛发展,为传统石油行业的转型升级带来了机遇。石油全业务链规模庞大,石油勘探开发、运输、炼制等领域迫切需要大数据技术的应用。然而,石油大数据产业仍处于起步阶段,遇到了石油数据存储管理不规范、技术标准不统一、安全隐患等诸多挑战。这些问题进一步导致数据共享不良、企业内部重复业务部署和系统受损。针对以上问题,本文提出了石油大数据产业发展的总体架构。该架构方案整合了石油产业链的所有数据和业务,实现了安全的数据共享、有效的业务管理和科学的资源配置。因此,石油大数据解决方案可以为生产过程和工业业务的动态管理提供重要的研究思路,从而提高石油工业的整体生产力。
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引用次数: 0
Positioning Algorithm of UWB based on TDOA Technology in Indoor Environment 基于TDOA技术的超宽带室内环境定位算法
T. Zhou, Yun Cheng
Most of the localization algorithms can achieve extremely high positioning accuracy in line of sight (LOS) environment. However, they are unable to obtain ideal accuracy due to the obstacles in non-line of sight (NLOS) environment. In order to reduce the influence of NLOS on positioning accuracy in indoor environment, Fang algorithm, Chan algorithm and Taylor algorithm based on TDOA in UWB indoor positioning technology are analyzed and tested. Through comparative simulation analysis, it can be concluded that in the case of Gaussian noise, regardless of the number of base stations, Chan algorithm has the best performance, Taylor algorithm is the second, and Fang algorithm has the worst performance. When the number of base stations reaches a certain number, Chan algorithm and Taylor algorithm are not sensitive to the number of base stations, but they can use all TDOA information to obtain more accurate parameter solutions, and can also be adapted to different measurement environments.
大多数定位算法在视线环境下都能达到极高的定位精度。然而,由于非视线(NLOS)环境中的障碍物,它们无法获得理想的精度。为了降低NLOS对室内环境下定位精度的影响,对UWB室内定位技术中的Fang算法、Chan算法和基于TDOA的Taylor算法进行了分析和测试。通过对比仿真分析,可以得出在高斯噪声情况下,无论基站数量如何,Chan算法性能最好,Taylor算法次之,Fang算法性能最差。当基站数量达到一定数量时,Chan算法和Taylor算法对基站数量不敏感,但可以利用所有TDOA信息获得更精确的参数解,也可以适应不同的测量环境。
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引用次数: 3
Anti-Electromagnetic Interference Design for Railway Vehicles in Complex Electromagnetic Environment 复杂电磁环境下轨道车辆抗电磁干扰设计
Ta Zhao, Caixin Fu, Gang Song, Lin Wang, Xiaotong Mu
With the increasing applications of information and communication technology in rail transit systems, the electronic and electrical devices in railway vehicles causes the serious electromagnetic interference (EMI) problem among any subsystems and devices. In this paper, an anti-EMI design scheme for railway vehicles is proposed, which can improve the anti-EMI ability of whole railway vehicles in terms of shielding, grounding, filtering and wiring. Based on Shanghai Metro Lines 4 and 6, the system implementation and testing are performed. The test results show that the proposed scheme can be effective and efficient to resolve the electromagnetic compatibility (EMC) problem.
随着信息通信技术在轨道交通系统中的应用日益广泛,轨道车辆上的电子电气设备在各个子系统和设备之间产生了严重的电磁干扰问题。本文提出了一种铁路车辆抗电磁干扰设计方案,从屏蔽、接地、滤波和布线等方面提高了铁路车辆整体的抗电磁干扰能力。以上海地铁4号线和6号线为例,进行了系统实现和测试。测试结果表明,该方案能够有效地解决电磁兼容问题。
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引用次数: 3
Selection of cancer treatment protocol evaluation based on multi-objective 基于多目标评价的肿瘤治疗方案选择
Huang Dong-xin, Jiao Yi, Shang Zhao-Xia
In order to select more accurate cancer treatment protocol and help decision makers to choose the best plan from all cancer treatment protocol more scientifically and more quickly, a cancer treatment plan evaluation algorithm based on multi-objective system is designed in this paper. Through intelligent method it can achieve a reasonable transforming between clinical data and treatment protocol evaluation data. At the same time, Multi-objective model analysis of typical cases and simulated calculation are carried out. By comparing with the original results, the objective of rapid sorting and evaluation of cancer treatment protocol is achieved effectively.
为了选择更准确的癌症治疗方案,帮助决策者更科学、更快速地从所有癌症治疗方案中选择最佳方案,本文设计了一种基于多目标系统的癌症治疗方案评价算法。通过智能方法实现临床数据与治疗方案评价数据之间的合理转换。同时,对典型案例进行了多目标模型分析和仿真计算。通过与原有结果的比较,有效地达到了快速筛选和评价肿瘤治疗方案的目的。
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引用次数: 0
Distributed State Estimation for Large-Scale Systems in the Presence of Data Packet Drops 存在数据包丢失的大规模系统的分布式状态估计
Xiao Fu, Xinmin Song
This article focuses on the distributed state estimation problem for large-scale systems in the presence of data packet drops. The large-scale system is structured in several correlated subsystems in the physical space, and each subsystem only communicates with its neighbors. In particular, the states of different subsystems are measured by different sensors, and the sensor broadcasts measurement information to the subestimator and its neighbors through the lossy communication channel. Thus, subestimators obtain different local information in the presence of data packet drops. In this article, the distributed estimator is designed and the optimal gain is obtained under the minimum mean square error (MMSE) estimation criterion by using local information set. Finally, the effectiveness of the distributed estimator is illustrated by a simulation experiment.
本文主要研究大规模系统中存在数据包丢失的分布式状态估计问题。大系统在物理空间中由多个相互关联的子系统构成,每个子系统只与相邻子系统通信。特别地,不同子系统的状态由不同的传感器测量,传感器通过有损通信信道将测量信息广播给下估计器及其邻居。因此,在存在数据包丢失的情况下,次估计器获得不同的局部信息。本文设计了分布式估计器,利用局部信息集在最小均方误差(MMSE)估计准则下获得最优增益。最后,通过仿真实验验证了分布式估计器的有效性。
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引用次数: 0
期刊
2021 11th International Conference on Information Technology in Medicine and Education (ITME)
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