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Case data-mining analysis for patients with oesophageal cancer 食管癌病例数据挖掘分析
Pub Date : 2020-05-08 DOI: 10.1504/ijcse.2020.10029386
Yanning Cao, Xiaoshu Zhang, Jin Wang
We are in an era of digital medicine in which physicians can generate copious patient data, but tools to analyse these data are limited. Thus, we used case data from patients with oesophageal cancer from a medical institution, removed incomplete information, and quantified the textual data according to recommendations from the corresponding physicians. We used different classification algorithms to process the data, predict patient survival, and compare accuracies across algorithms. Our experimental results show that the BayesNet algorithm was highly accurate and precise, and, thus, may represent a promising data-mining tool.
我们正处于数字医学时代,医生可以生成大量的患者数据,但分析这些数据的工具有限。因此,我们使用来自医疗机构的食管癌患者的病例数据,删除不完整的信息,并根据相应医生的建议对文本数据进行量化。我们使用不同的分类算法来处理数据,预测患者的生存,并比较不同算法的准确性。实验结果表明,BayesNet算法具有较高的准确率和精确度,是一种很有前途的数据挖掘工具。
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引用次数: 0
Self-organised resource assignment for on-demand services in the cloud platform 云平台中按需服务的自组织资源分配
Pub Date : 2020-05-04 DOI: 10.1504/ijcse.2020.10029212
Zhiqiang Ruan, Dan Yang
It is more popular for a multimedia service provider (MCSP) to deploy many data centres (DCs) in different geographic locations over cloud for delivering video-on-demand (VoD) services to a lot of users. One primary task of the MCSP is to maximise its profit while guarantee the user's quality-of-service (QoS) requirements. However, the stochastic arrival of user requests and the capacity restriction of individual DC make resource management in distributed cloud more challenging than in a general cloud. We present a resource assignment strategy that can accommodate heterogeneous network resources and QoS demands by converting the request distribution problem into the constrained function optimisation problem. An online algorithm is developed and certified approximating to the optimum solution. Compared with other alternatives, our algorithm can cut down more than 35% of operational cost without degrading the QoS of end users.
多媒体服务提供商(MCSP)通过云在不同的地理位置部署许多数据中心(dc),以便向大量用户提供视频点播(VoD)服务,这种做法更为流行。MCSP的一个主要任务是在保证用户服务质量(QoS)要求的同时实现利润最大化。然而,用户请求的随机到达和单个数据中心的容量限制使得分布式云中的资源管理比一般云更具挑战性。通过将请求分配问题转化为约束函数优化问题,提出了一种能够适应异构网络资源和QoS需求的资源分配策略。提出了一种在线逼近最优解的算法,并对其进行了验证。与其他替代方案相比,我们的算法在不降低最终用户QoS的情况下,可以降低35%以上的运营成本。
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引用次数: 0
Smart embarked electrical network based on embedded system and monitoring camera 基于嵌入式系统和监控摄像头的智能车载电气网络
Pub Date : 2020-05-04 DOI: 10.1504/ijcse.2020.10029208
Mohammed Amine Benmahdjoub, A. Mezouar, L. Boumediene, Youcef Saidi
To improve the quality of life and its comfort with more security, the world of transport is moving towards the all-electric. This imposes an embarked electrical network type operation, and this network based on parallel alternators connecting, which requires more energy and needs synchronisation with identical phases between alternators. In addition, some conditions must be respected to avoid energy crises and increase the efficiency of the system. To ensure the stability and protection of this type of system, the control will be performed by a reliable controller with remote control and monitoring of all data in real time. In this paper, we realise a prototype of protection and monitoring of electrical equipment using a Raspberry Pi as an intermediate embedded system and an RPi camera. In addition, the communication between the electrical system and the web application will be done by Json file or by data stored in the database. For any change in the desired values, the electrical protection system sends a message and a musical warning to the website in real time. In addition, the monitoring will be generated by the FIFO memory for image processing and the servomotor to control the direction of the RPi camera.
为了提高生活质量和舒适度,提高安全性,世界交通正朝着全电动的方向发展。这就产生了一种基于并联交流发电机连接的电力网络,这种网络需要更多的能量,并且需要在交流发电机之间实现相同相位的同步。此外,为了避免能源危机,提高系统效率,必须尊重一些条件。为了保证这种类型系统的稳定性和保护,控制将由可靠的控制器进行远程控制,并实时监控所有数据。在本文中,我们使用树莓派作为中间嵌入式系统和RPi相机实现了一个电气设备保护和监控的原型。此外,电气系统与web应用程序之间的通信将通过Json文件或存储在数据库中的数据来完成。对于任何期望值的变化,电气保护系统将实时向网站发送消息和音乐警告。此外,监控将由FIFO存储器生成图像进行处理,并由伺服电机控制RPi摄像机的方向。
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引用次数: 2
Research on network layout strategy of mobile opportunity perception in coal mines 煤矿移动机会感知网络布局策略研究
Pub Date : 2020-05-04 DOI: 10.1504/ijcse.2020.10029223
Jingzhao Li, Zhi Xu
The underground coal mine monitoring system has high costs of large-scale application, the network is not easy to expand, and it is difficult to achieve complete coverage of coal mines. To solve these problems, this paper presents a new data acquisition and transmission method based on 'wired + wireless', 'A, B, C and D class mobile node'. The method, combining the existing wired network and wireless network in the coal mine, using sparse heterogeneous converged networks centred on opportunistic networks, analyses the composition, function, connection law and historical information of four types of node and the system structure. Experimental results show that this method can further realise the dynamic planning of the node interaction path. Then, it predicts and corrects the data of artificial mobile nodes and fixed interaction information in the next cycle. Finally, it achieves a powerful guarantee for internet of things, interaction of objects, intelligent perception, and intelligent processing in the mine safety management.
煤矿井下监测系统大规模应用成本高,网络不易扩展,难以实现煤矿全覆盖。针对这些问题,本文提出了一种基于“有线+无线”、“a、B、C、D类移动节点”的新型数据采集与传输方法。该方法结合煤矿现有的有线网络和无线网络,采用以机会网络为中心的稀疏异构融合网络,分析了四类节点的组成、功能、连接规律和历史信息以及系统结构。实验结果表明,该方法可以进一步实现节点交互路径的动态规划。然后,对人工移动节点数据和固定交互信息进行预测和修正。最终为矿山安全管理中的物联网、物交互、智能感知、智能处理等提供有力保障。
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引用次数: 0
An improved Otsu threshold segmentation algorithm 一种改进的Otsu阈值分割算法
Pub Date : 2020-05-04 DOI: 10.1504/ijcse.2020.10029225
Pei Yang, Wei Song, Xiaobing Zhao, Rui Zheng, L. Qingge
Image segmentation is widely used as a fundamental step for various image processing applications. This paper focuses on improving the famous image thresholding method named Otsu's algorithm. Based on the fact that threshold acquired by Otsu's algorithm tends to be closer to the class with larger intraclass variance when the foreground and background have large intraclass variance difference, an improved strategy is proposed to adjust the threshold bias. We analysed the relationship between pixel greyscale value and the change of cumulative pixel number, and selected the ratio of pixel grey level value to a certain cumulative pixel number as the adjusted threshold. Experiments using typical testing images were set up to verify the proposed method both quantitatively and qualitatively. Two widely used metrics named misclassification error (ME) and dice similarity coefficient (DSC) were adopted for quantitative evaluation, and both quantitative and qualitative results indicated that the proposed algorithm could better segment the testing images and get competitive misclassification error and DSC values compared with Otsu's method and its improved versions proposed by Hu and Gong (2009) and Xu et al. (2011), and the time consumption of our method can be significantly reduced.
图像分割作为各种图像处理应用的基本步骤被广泛使用。本文主要对著名的图像阈值分割方法Otsu算法进行改进。基于Otsu算法获取的阈值在前景和背景的类内方差较大时趋向于更接近类内方差较大的类别,提出了一种改进的阈值偏差调整策略。分析了像素灰度值与累积像素数变化的关系,选择像素灰度值与一定累积像素数的比值作为调整阈值。利用典型的测试图像建立了实验,从定量和定性两个方面验证了所提出的方法。采用误分误差(ME)和dice similarity coefficient (DSC)这两个被广泛使用的度量指标进行定量评价,定量和定性结果均表明,与Otsu的方法及Hu and Gong(2009)和Xu et al.(2011)提出的改进版本相比,本文算法能够更好地分割测试图像,获得有竞争力的误分类误差和DSC值,并且可以显著减少我们方法的耗时。
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引用次数: 34
A novel high capacity turtle shell-based data hiding with location table free 一种基于龟壳的无位置表的大容量数据隐藏方法
Pub Date : 2020-05-04 DOI: 10.1504/ijcse.2020.10029224
Jiang-Yi Lin, Yu Chen, Chinchen Chang, Yu-Chen Hu
In this paper, we design a novel turtle shell based data hiding scheme. The proposed scheme starts by constructing a novel reference matrix based on the original turtle shell matrix. Without any overhead messages, the secret data can be concealed in the pixel pairs selected from the cover image and would be correctly extracted according to the characteristic of the reference matrix in a 4 × 5 block. Experimental results demonstrate that the proposed scheme can achieve a high embedding capacity of 2 bit per pixel (bpp). The experimental comparison also reveals that the proposed scheme is superior to some existing data hiding schemes subject to the peak signal-to-noise ratio measurement. Meanwhile, it has good performance on resisting the statistical attack of pixel-value differencing (PVD) histogram.
本文设计了一种新的基于龟壳的数据隐藏方案。该方案首先在原龟壳矩阵的基础上构造一个新的参考矩阵。在没有任何开销信息的情况下,秘密数据可以隐藏在从封面图像中选择的像素对中,并根据4 × 5块内参考矩阵的特征正确提取。实验结果表明,该方案可以实现2比特/像素的高嵌入容量。实验结果表明,在峰值信噪比测量条件下,该方案优于现有的一些数据隐藏方案。同时,该方法在抵抗像素值差分(PVD)直方图的统计攻击方面具有良好的性能。
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引用次数: 1
Application research on service innovation and entrepreneurship education in university libraries and archives 高校图书馆档案馆服务创新创业教育的应用研究
Pub Date : 2020-05-04 DOI: 10.1504/ijcse.2020.10029220
Xiufang Qian, Huamei Shi, Chunpeng Ge, H. Fan, Xiaorong Zhao, Yijun Liu
College students' innovation and entrepreneurship education is an education to cultivate college students' innovative spirit, entrepreneurial awareness and ability to improve innovation and entrepreneurship. At present, the actual development effect of innovation and entrepreneurship education in China is not obvious. The innovation ability of college students needs to be improved, the proportion of innovation and entrepreneurship is still relatively low, and the success rate of entrepreneurship is not high. Therefore, we suggest that university libraries need to make full use of big data technology to better serve innovation and entrepreneurship education, thus effectively improving the effectiveness of innovation and entrepreneurship education, and facilitating the development of more innovative and entrepreneurial talents. Firstly, it expounds the connotation of innovation and entrepreneurship education, analyses the application of big data in university libraries, and secondly proposes the mechanism of cross-functional collaboration. Then, by integrating the independent data resources of university functional departments, the mechanism overcomes the problem of 'fragmentation'; finally, and innovatively proposed the establishment of new archives, and then through the means of big data for innovation and entrepreneurship education, and ultimately improve the quality of innovation and entrepreneurship education.
大学生创新创业教育是培养大学生创新精神、创业意识和提高创新创业能力的教育。目前,中国创新创业教育的实际发展效果并不明显。大学生创新能力有待提高,创新创业比例还比较低,创业成功率不高。因此,我们建议高校图书馆需要充分利用大数据技术,更好地为创新创业教育服务,从而有效提高创新创业教育的有效性,促进更多创新创业人才的培养。首先阐述了创新创业教育的内涵,分析了大数据在高校图书馆中的应用,其次提出了跨职能协作机制。然后,通过整合高校职能部门的独立数据资源,克服了“碎片化”的问题;最后,创新性地提出建立新档案,进而通过大数据的手段进行创新创业教育,最终提高创新创业教育的质量。
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引用次数: 6
Broker-based mechanism for cloud provider selection 基于代理的云提供商选择机制
Pub Date : 2020-05-04 DOI: 10.1504/ijcse.2020.10029211
R. Achar, P. S. Thilagam, Shreenath Acharya
Cloud computing has recently emerged as a new computing paradigm for delivering on demand virtualised computing resources over the internet on a pay-as-use basis. Applications hosted in cloud have different requirements which include both low level (resource) requirements and high level (performance) requirements. However, most of the cloud providers satisfy SLAs based on resource requirements rather than providing performance guarantees to applications. This gap creates a need for selecting a more suitable cloud provider who can satisfy performance requirements of applications along with resource requirements. This work aims at proposing a broker-based approach to rank cloud providers based on QoS requirements of customers. It helps the SaaS providers to save cost and complexity in choosing a suitable cloud provider for hosting applications. The experimental results show that proposed approach selects the suitable cloud provider for hosting various types of applications satisfying the needs of different cloud customers.
云计算最近作为一种新的计算范式出现,它以按需付费的方式在互联网上交付虚拟计算资源。托管在云中的应用程序有不同的需求,包括低级(资源)需求和高级(性能)需求。然而,大多数云提供商都是基于资源需求来满足sla的,而不是为应用程序提供性能保证。这种差距导致需要选择更合适的云提供商,他们可以满足应用程序的性能需求和资源需求。这项工作旨在提出一种基于代理的方法,根据客户的QoS需求对云提供商进行排名。它帮助SaaS提供商在为托管应用程序选择合适的云提供商时节省成本和复杂性。实验结果表明,该方法可以选择合适的云提供商来托管不同类型的应用程序,满足不同云客户的需求。
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引用次数: 1
A method of automatic text summarisation based on long short-term memory 一种基于长短期记忆的文本自动摘要方法
Pub Date : 2020-05-04 DOI: 10.1504/ijcse.2020.10029209
Wei Fang, Tianxiao Jiang, Ke Jiang, Feihong Zhang, Yewen Ding, Jack Sheng
Deep learning is currently developing very fast in the NLP field and has achieved many amazing results in the past few years. Automatic text summarisation means that the abstract of the document is automatically summarised by a computer program without changing the original intention of the document. There are many application scenarios for automatic summarisation, such as news headline generation, scientific document abstract generation, search result segment generation, and product review summarisation. In the era of internet big data in the information explosion, if the short text can be employed to express the main connotation of information, it will undoubtedly help to alleviate the problem of information overload. In this paper, a model based on the long short-term memory network is presented to automatically analyse and summarise Chinese articles by using the seq2seq+attention models. Finally, the experimental results are attached and evaluated.
深度学习目前在自然语言处理领域发展非常迅速,在过去的几年里取得了许多惊人的成果。自动文本摘要是指在不改变文件本意的情况下,由计算机程序自动对文件摘要进行摘要。自动摘要的应用场景很多,如新闻标题生成、科学文献摘要生成、搜索结果片段生成、产品评论摘要等。在信息爆炸的互联网大数据时代,如果能用短文本来表达信息的主要内涵,无疑有助于缓解信息过载的问题。本文提出了一种基于长短期记忆网络的中文文章自动分析和摘要模型,该模型采用seq2seq+注意力模型。最后附上实验结果并进行评价。
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引用次数: 5
An influence maximisation algorithm based on community detection 基于社区检测的影响力最大化算法
Pub Date : 2020-05-04 DOI: 10.1504/ijcse.2020.10029215
Yan Yuan, Bolun Chen, Yongtao Yu, Ying Jin
Influence maximisation is an important research direction in social networks. The main goal of this approach is to select seed nodes in the network to maximise the propagated influence. Because the influence maximisation is an NP-hard problem, existing studies have provided approximate solutions, and the research focuses on the framework of greed, but the time complexity of the greedy algorithm is high. In this study, an influence maximisation algorithm based on community detection is proposed. This algorithm uses the K-means algorithm to divide the community. According to the modularity, the optimal community segmentation result is selected. By calculating the edge betweenness of each community, some nodes are selected as important nodes. The important nodes of each community constitute the set of seed nodes used in the influence maximisation algorithm. Experiments show that the algorithm not only has an improved influence, but also the time complexity is effectively reduced.
影响力最大化是社交网络研究的一个重要方向。该方法的主要目标是在网络中选择种子节点以最大化传播影响。由于影响最大化是一个NP-hard问题,现有研究提供了近似解,研究主要集中在贪心的框架上,但贪心算法的时间复杂度较高。本文提出了一种基于社区检测的影响最大化算法。该算法使用K-means算法对社区进行划分。根据模块性选择最优社团分割结果。通过计算每个社区的边缘间度,选择一些节点作为重要节点。每个社区的重要节点构成影响最大化算法中使用的种子节点集。实验表明,该算法不仅提高了影响,而且有效地降低了时间复杂度。
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引用次数: 2
期刊
Int. J. Comput. Sci. Eng.
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