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An automated learning model for sentiment analysis and data classification of Twitter data using balanced CA-SVM 基于平衡CA-SVM的Twitter数据情感分析与分类自动学习模型
Pub Date : 2021-07-20 DOI: 10.1177/1063293X211031485
C. Cyril, J. Beulah, Neelakandan Subramani, Prakash Mohan, A. Harshavardhan, D. Sivabalaselvamani
The modern society runs over the social media for their most time of every day. The web users spend their most time in social media and they share many details with their friends. Such information obtained from their chat has been used in several applications. The sentiment analysis is the one which has been applied with Twitter data set toward identifying the emotion of any user and based on those different problems can be solved. Primarily, the data as of the Twitter database is preprocessed. In this step, tokenization, stemming, stop word removal, and number removal are done. The proposed automated learning with CA-SVM based sentiment analysis model reads the Twitter data set. After that they have been processed to extract the features which yield set of terms. Using the terms, the tweets are clustered using TGS-K means clustering which measures Euclidean distance according to different features like semantic sentiment score (SSS), gazetteer and symbolic sentiment support (GSSS), and topical sentiment score (TSS). Further, the method classifies the tweets according to support vector machine (CA-SVM) which classifies the tweet according to the support value which is measured based on the above two measures. The attained results are validated utilizing k-fold cross-validation methodology. Then, the classification is performed by utilizing the Balanced CA-SVM (Deep Learning Modified Neural Network). The results are evaluated and compared with the existing works. The Proposed model achieved 92.48 % accuracy and 92.05% sentiment score contrasted with the existing works.
现代社会每天大部分时间都在使用社交媒体。网络用户在社交媒体上花费的时间最多,他们与朋友分享许多细节。从他们的聊天中获得的这些信息已经在几个应用程序中使用。情感分析是一种应用于Twitter数据集的分析,旨在识别任何用户的情感,并基于这些不同的问题可以解决。首先,对Twitter数据库中的数据进行预处理。在这一步中,完成了标记化、词干提取、停止词删除和数字删除。提出了基于CA-SVM的情感分析模型的自动学习方法。然后对它们进行处理以提取产生术语集的特征。使用这些术语,使用TGS-K聚类方法对tweet进行聚类,该聚类方法根据语义情感评分(SSS)、地名和符号情感支持(GSSS)以及主题情感评分(TSS)等不同特征测量欧几里得距离。进一步,该方法根据支持向量机(CA-SVM)对推文进行分类,支持向量机根据基于上述两个度量测量的支持值对推文进行分类。利用k-fold交叉验证方法验证了所获得的结果。然后,利用平衡CA-SVM (Deep Learning Modified Neural Network)进行分类。对结果进行了评价,并与已有的工作进行了比较。与现有模型相比,该模型的准确率为92.48%,情感得分为92.05%。
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引用次数: 39
Automated glaucoma detection from fundus images using wavelet-based denoising and machine learning 基于小波去噪和机器学习的眼底图像青光眼自动检测
Pub Date : 2021-07-09 DOI: 10.1177/1063293X211026620
Sibghatullah I. Khan, S. Choubey, A. Choubey, Abhishek Bhatt, Pandya Vyomal Naishadhkumar, M. M. Basha
Glaucoma is a domineering and irretrievable neurodegenerative eye disease produced by the optical nerve head owed to extended intra-ocular stress inside the eye. Recognition of glaucoma is an essential job for ophthalmologists. In this paper, we propose a methodology to classify fundus images into normal and glaucoma categories. The proposed approach makes use of image denoising of digital fundus images by utilizing a non-Gaussian bivariate probability distribution function to model the statistics of wavelet coefficients of glaucoma images. The traditional image features were extracted followed by the popular feature selection algorithm. The selected features are then fed to the least square support vector machine classifier employing various kernel functions. The comparison result shows that the proposed approach offers maximum classification accuracy of nearly 91.22% over the existing best approaches.
青光眼是一种顽固性、不可治愈的眼部神经退行性疾病,由视神经头引起,原因是眼内压力过大。青光眼的识别是眼科医生的一项重要工作。在本文中,我们提出了一种方法,将眼底图像分为正常和青光眼类别。该方法利用非高斯二元概率分布函数对青光眼图像的小波系数进行统计建模,对数字眼底图像进行去噪。提取传统的图像特征,然后采用流行的特征选择算法。然后将选择的特征馈送到使用各种核函数的最小二乘支持向量机分类器。对比结果表明,与现有最佳方法相比,该方法的分类准确率达到了近91.22%。
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引用次数: 11
Batch-based agile program management approach for coordinating IT multi-project concurrent development 协调IT多项目并发开发的基于批处理的敏捷项目管理方法
Pub Date : 2021-06-08 DOI: 10.1177/1063293X211015236
Qing Yang, Yingxin Bi, Qinru Wang, Tao Yao
Software development projects have undergone remarkable changes with the arrival of agile development approaches. Many firms are facing a need to use these approaches to manage entities consisting of multiple projects (i.e. programs) simultaneously and efficiently. New technologies such as big data provide a huge power and rich demand for the IT application system of the commercial bank which has the characteristics of multiple sub-projects, strong inter-project correlation, and numerous project participating teams. Hence, taking the IT program management of a bank in China as a case, we explore the methods to solve the problems in multi-project concurrent development practice through integrating the ideas of program and batch management. First, to coordinate the multi-project development process, this paper presents the batch-based agile program management approach that synthesizes concurrent engineering with agile methods. And we compare the application of batch management between software development projects and manufacturing process. Further, we analyze the concurrent multi-project development practice in the batch-based agile program management, including the overlapping between stages, individual project’s activities, and multiple projects based on common resources and environment to stimulate the knowledge transfer. Third, to facilitate the communication and coordination of batch-based program management, we present the double-level responsibility organizational structure of batch management.
随着敏捷开发方法的到来,软件开发项目经历了显著的变化。许多公司都需要使用这些方法来同时有效地管理由多个项目(即计划)组成的实体。大数据等新技术为商业银行IT应用系统提供了巨大的动力和丰富的需求,该系统具有子项目多、项目间关联度强、项目参与团队多的特点。因此,本文以中国某银行IT项目管理为例,探讨如何将项目管理与批管理思想相结合,解决多项目并行开发实践中存在的问题。首先,为了协调多项目开发过程,本文提出了基于批处理的敏捷项目管理方法,该方法将并行工程与敏捷方法相结合。并对批量管理在软件开发项目和生产过程中的应用进行了比较。在此基础上,分析了基于批处理的敏捷项目管理中的并发多项目开发实践,包括阶段之间的重叠、单个项目活动的重叠以及基于公共资源和环境的多个项目之间的重叠,以促进知识转移。第三,为了便于基于批的项目管理的沟通和协调,我们提出了批管理的双层责任制组织结构。
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引用次数: 2
Time-aware cloud manufacturing service selection using unknown QoS prediction and uncertain user preferences 基于未知QoS预测和不确定用户偏好的时间感知云制造服务选择
Pub Date : 2021-06-03 DOI: 10.1177/1063293X211019503
Ying Yu, Shan Li, Jing Ma
Selecting the most efficient from several functionally equivalent services remains an ongoing challenge. Most manufacturing service selection methods regard static quality of service (QoS) as a major competitiveness factor. However, adaptations are difficult to achieve when variable network environment has significant impact on QoS performance stabilization in complex task processes. Therefore, dynamic temporal QoS values rather than fixed values are gaining ground for service evaluation. User preferences play an important role when service demanders select personalized services, and this aspect has been poorly investigated for temporal QoS-aware cloud manufacturing (CMfg) service selection methods. Furthermore, it is impractical to acquire all temporal QoS values, which affects evaluation validity. Therefore, this paper proposes a time-aware CMfg service selection approach to address these issues. The proposed approach first develops an unknown-QoS prediction model by utilizing similarity features from temporal QoS values. The model considers QoS attributes and service candidates integrally, helping to predict multidimensional QoS values accurately and easily. Overall QoS is then evaluated using a proposed temporal QoS measuring algorithm which can self-adapt to user preferences. Specifically, we employ the temporal QoS conflict feature to overcome one-sided user preferences, which has been largely overlooked previously. Experimental results confirmed that the proposed approach outperformed classical time series prediction methods, and can also find better service by reducing user preference misjudgments.
从几个功能相当的服务中选择最有效的服务仍然是一个持续的挑战。大多数制造业服务选择方法都将静态服务质量(QoS)作为主要的竞争因素。然而,在复杂的任务过程中,当多变的网络环境对QoS性能稳定有显著影响时,自适应很难实现。因此,在服务评估中,动态的暂时QoS值而不是固定的值正在获得一席之地。用户偏好在服务需求者选择个性化服务时起着重要的作用,而对于实时qos感知的云制造(CMfg)服务选择方法,这方面的研究很少。此外,获取所有时间QoS值是不现实的,这影响了评估的有效性。因此,本文提出了一种具有时效性的CMfg服务选择方法来解决这些问题。该方法首先利用时序QoS值的相似性特征建立未知QoS预测模型。该模型综合考虑了QoS属性和服务候选,有助于准确、方便地预测多维QoS值。然后使用一种可以自适应用户偏好的时序QoS测量算法来评估总体QoS。具体来说,我们采用了暂时的QoS冲突特征来克服片面的用户偏好,这在很大程度上被忽略了。实验结果表明,该方法优于经典的时间序列预测方法,并且可以通过减少用户偏好误判来找到更好的服务。
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引用次数: 1
Design of novel multi filter union feature selection framework for breast cancer dataset 新型乳腺癌数据集多滤波器联合特征选择框架设计
Pub Date : 2021-05-31 DOI: 10.1177/1063293X211016046
Dinesh Morkonda Gunasekaran, Prabha Dhandayudam
Nowadays women are commonly diagnosed with breast cancer. Feature based Selection method plays an important step while constructing a classification based framework. We have proposed Multi filter union (MFU) feature selection method for breast cancer data set. The feature selection process based on random forest algorithm and Logistic regression (LG) algorithm based union model is used for selecting important features in the dataset. The performance of the data analysis is evaluated using optimal features subset from selected dataset. The experiments are computed with data set of Wisconsin diagnostic breast cancer center and next the real data set from women health care center. The result of the proposed approach shows high performance and efficient when comparing with existing feature selection algorithms.
现在女性通常被诊断为乳腺癌。基于特征的选择方法是构建分类框架的重要步骤。提出了一种针对乳腺癌数据集的多滤波器联合(MFU)特征选择方法。采用基于随机森林算法的特征选择过程和基于Logistic回归(LG)算法的联合模型来选择数据集中的重要特征。使用所选数据集的最优特征子集来评估数据分析的性能。实验采用美国威斯康辛州乳腺癌诊断中心的数据集和美国妇女保健中心的真实数据集进行计算。与现有的特征选择算法相比,该方法具有较高的性能和效率。
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引用次数: 0
Prioritizing failure risks of components based on information axiom for product redesign considering fuzzy and random uncertainties 基于信息公理的产品再设计部件失效风险排序
Pub Date : 2021-05-27 DOI: 10.1177/1063293X211015999
Zhenhua Liu, Xuening Chu, Hongzhan Ma, Mengting Zhang
The prioritization of the failure risks of the components in an existing product is critical for product redesign decision-making considering various uncertainties. Two issues need to be addressed in the failure risk prioritization process. One is the evaluation of the failure risk considering each failure mode for each component. Currently, many failure mode effects and analysis (FMEA) methods based on fuzzy logic seldom deal with the randomness in failure mode occurrence during the product operation stage. Therefore, in this research, the information axiom is extended to calculate the information contents of risk indices considering these two types of uncertainty. The second issue is the evaluation of the degree of failure risk for each of the components. The weighted sum of information content considering all failure modes is used to assess the risk of components based on a fuzzy logarithmic least squares method (FLLSM). Additionally, a case study to prioritize the failure risks of various components in a crawler crane is implemented to demonstrate the effectiveness of the developed approach.
在考虑各种不确定因素的情况下,现有产品中部件失效风险的优先级排序对于产品再设计决策至关重要。在故障风险优先排序过程中需要解决两个问题。一是考虑各部件各失效模式的失效风险评估。目前,许多基于模糊逻辑的失效模式效应分析方法很少处理产品运行阶段失效模式发生的随机性。因此,在本研究中,将信息公理推广到考虑这两种不确定性的风险指标的信息含量计算。第二个问题是评估每个部件的失效风险程度。基于模糊对数最小二乘法(FLLSM),采用考虑各种失效模式的信息含量加权和来评估部件的风险。此外,通过对履带式起重机各部件故障风险的优先级排序的案例研究,验证了所开发方法的有效性。
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引用次数: 1
Assembly line balance research methods, literature and development review 装配线平衡的研究方法、文献及发展综述
Pub Date : 2021-05-03 DOI: 10.1177/1063293X20987910
Yu-ling Jiao, Han Jin, Xiao-cui Xing, Ming-juan Li, Xinran Liu
With the continuous upgrading of the manufacturing system, the assembly line balancing problem (ALBP) is gradually complicated, and the researches are constantly deepened in the application theory and solution methods. In order to clarify the research direction and development status of assembly line balancing, 89 articles are read and studied. We classify ALBPs to construct the network structure of research from horizontal classification and vertical thinking. The ALBP framework is horizontally given according to the number of models (i.e. the number of products), the layout shape of the assembly line, and the data of task time. The “seven steps for scientific paper” is vertically proposed according to the research steps to comb the research path of scientific and technological literature. The horizontal and vertical extension crosses and constructs the network structure of the ALBP. Any horizontal problem intersects with any step of the vertical “seven steps for scientific paper” to form a research point. We analyze 89 articles according to the development path from the straight line to U-shaped line and then to two-sided U-shaped/parallel U-shaped assembly line, summarize the research algorithm of assembly line balance and count the number of articles, and point out the latest research direction and algorithm development trend of assembly line balance.
随着制造系统的不断升级,装配线平衡问题(ALBP)逐渐复杂化,在应用理论和求解方法上的研究也在不断深入。为了明确装配线平衡的研究方向和发展现状,对89篇文章进行了阅读和研究。我们从横向分类和纵向思维两方面对白蛋白进行分类,构建研究网络结构。根据模型数量(即产品数量)、装配线布局形状、任务时间数据水平给出ALBP框架。按照研究步骤垂直提出“科技论文七步”,梳理科技文献的研究路径。横向和纵向的延伸相互交叉,构成了ALBP的网络结构。任何水平的问题与垂直的“科技论文七步”中的任何一步相交,形成一个研究点。按照从直线到u型线再到双面u型/平行u型线的发展路径对89篇文章进行了分析,总结了装配线平衡的研究算法并对文章数量进行了统计,指出了装配线平衡的最新研究方向和算法发展趋势。
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引用次数: 12
An efficient approach for brain tumor detection and segmentation in MR brain images using random forest classifier 一种基于随机森林分类器的脑肿瘤检测与分割方法
Pub Date : 2021-04-27 DOI: 10.1177/1063293X211010542
Meenal Thayumanavan, Asokan Ramasamy
Nowadays, the most demanding and time consuming task in medical image processing is Brain tumor segmentation and detection. Magnetic Resonance Imaging (MRI) is employed for creating a picture of any part in a body. MRI provides a competent quick manner for analyzing tumor in the brain. This proposed framework contains different stages for classifying tumor like Preprocessing, Feature extraction, Classification, and Segmentation. Initially, T1-weighted magnetic resonance brain images are considered as an input for computational purpose. Median filter is proposed to optimize the skull stripping in MRI images. Abnormal brain tissues are extracted in low contrast, in addition to meticulous location of edges of affected tissue can be detected. Then, Discrete Wavelet Transform (DWT) and Histogram of Oriented Gradients (HOG) are performing feature extraction process. HOG is used for extracting the features like texture and shape. Then, Classification is performed through Machine learning categorization techniques via Random Forest Classifier (RFC), Support Vector Machine (SVM), and Decision Tree (DT). These classifiers classify the brain image as either normal or abnormal and the performance is analyzed by various parameters such as sensitivity, specificity and accuracy.
目前,医学图像处理中要求最高、耗时最长的任务是脑肿瘤的分割与检测。磁共振成像(MRI)被用来绘制身体任何部位的图像。MRI为分析脑内肿瘤提供了一种有效的快速方法。该框架包含了肿瘤分类的预处理、特征提取、分类和分割等阶段。最初,t1加权磁共振脑图像被认为是用于计算目的的输入。提出了一种优化MRI颅骨剥离的中值滤波方法。在低对比度下提取异常脑组织,并对受影响组织的边缘进行精细定位。然后,采用离散小波变换(DWT)和梯度直方图(HOG)进行特征提取。HOG用于提取纹理和形状等特征。然后,通过随机森林分类器(RFC)、支持向量机(SVM)和决策树(DT)的机器学习分类技术进行分类。这些分类器将大脑图像分类为正常或异常,并通过灵敏度、特异性和准确性等各种参数对其性能进行分析。
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引用次数: 16
Clustering product development project organization based on trust and core teams 基于信任和核心团队的产品开发项目组织集群
Pub Date : 2021-04-20 DOI: 10.1177/1063293X211005038
Na Yang, Qing Yang, Tao Yao
The new product development (PD) project is a complex network of communications involving trust relationships among teams. Trust is prominent, influencing the team positions and organizational performance indirectly. To manage the coordination complexity in PD projects, in this paper, we build a model of mutual trust among teams and further identify core teams to optimize the PD organizational network structure. First, we identified the technical interdependency and emotional closeness that influence the transmission behavior of the tie strength in the PD organizational network. Then, we examined how the presence of a common third party in the organizational network affects the trust transferability between interdependent teams. We modelled the structural similarity based on the trust transferability. To identify the core teams, which typically have high importance as well as diverse knowledge in the organizational network, we improved the LeaderRank centrality with trust transferability related to common recipients/sources to evaluate the importance of teams and present the team attributes (i.e. expertise) diversity. To build the group around core teams, we used the core teams as the input parameter (i.e. the initial clustering seeds) of the K-means clustering algorithms. The clustering results reinforce several managerial practices in an industrial example, including how trust transferability impacts the optimal organizational network structure and how to build an organizational network structure based on core teams.
新产品开发(PD)项目是一个复杂的通信网络,涉及团队之间的信任关系。信任突出,间接影响团队位置和组织绩效。为了管理项目协同的复杂性,本文建立了团队之间的相互信任模型,并进一步确定核心团队,优化项目开发组织网络结构。首先,我们确定了影响PD组织网络中纽带强度传递行为的技术相互依赖和情感亲密。然后,我们研究了组织网络中共同第三方的存在如何影响相互依赖团队之间的信任可转移性。基于信任可转移性对结构相似性进行建模。为了识别在组织网络中通常具有高重要性和多样化知识的核心团队,我们改进了与共同接受者/来源相关的信任可转移性的LeaderRank中心性,以评估团队的重要性并呈现团队属性(即专业知识)多样性。为了围绕核心团队构建群组,我们使用核心团队作为K-means聚类算法的输入参数(即初始聚类种子)。聚类结果强化了工业实例中的若干管理实践,包括信任可转移性如何影响最优组织网络结构以及如何构建基于核心团队的组织网络结构。
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引用次数: 2
Cross domain modularization tool: Mechanics, electronics, and software 跨领域模块化工具:机械、电子和软件
Pub Date : 2021-04-16 DOI: 10.1177/1063293X211000331
Christoffer Askhøj, Carsten Keinicke Fjord Christensen, N. Mortensen
Modularization is a strategy used for handling the demand for external complexity with less internal complexity, which leads to higher profits and more efficient product development processes. However, modularity is often driven in silos, not crossing into the engineering fields of mechanics, electronics, and software. Therefore, we present the MESA (Mechanics, Electronics, and Software Architecture) tool—a tool that can be used to visualize modular product architectures across mechanics, electronics, and software. The tool demonstrates how a change in one domain affects the rest and how well aligned the modularity in the different domains is. The tool has been tested in two case companies that were used for case application and has helped provide information for making key design decisions in the development of new product families.
模块化是一种用于以较少的内部复杂性来处理外部复杂性需求的策略,这将导致更高的利润和更有效的产品开发过程。然而,模块化通常是在筒仓中驱动的,而不是跨越机械、电子和软件等工程领域。因此,我们提出了MESA(力学、电子和软件体系结构)工具——一个可以用来可视化力学、电子和软件的模块化产品体系结构的工具。该工具演示了一个领域中的更改如何影响其他领域,以及不同领域中的模块化是如何很好地对齐的。该工具已在两家案例公司中进行了测试,并用于案例应用,并帮助为新产品系列开发中的关键设计决策提供了信息。
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引用次数: 3
期刊
Concurrent Engineering
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