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2017 International Conference on Network and Information Systems for Computers (ICNISC)最新文献

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The Data Crawling and Hotspot Analyze of Social Q&A Site 社交问答网站的数据抓取与热点分析
Rui-Hui Jia
Along with the rapid development of the Internet, more specialized and detailed information sources like Q&A sites have gradually come into being. On these social Q&A platforms, there are plenty of hot topics and news being discussed and even created every minute. Therefore, it is of great practical significance to learn about hot social issues by analyzing and parsing the content on social Q&A platforms. By taking a social Q&A platform as the research subject, this paper analyzes the difficulties in crawling data from this platform and relevant solutions, designs and implement a data crawling system containing a user information storage module, a highly anonymous and available proxy maintenance module, a node crawling and parsing module, and a data storage module. With these modules, the system is able to crawl data and store it without being restricted by the platform. On this basis, this paper designs and implements a hotspot parsing and grading module. Based on echarts, a historical hotspot display module and a trending hotspot display module are designed to show the historical and trending hotspots on this platform. Then, this paper uses the proposed data crawling module and the hotspot analysis and display system to obtain the data of 31,520 regularized independent topics and the real-time data of 979,815 questions from this social Q&A platform. Based on these data, the historical and trending hotspot analysis on this platform is displayed. The experimental results show that this system has fully met the design objectives. Finally, this research summarizes the proposed data crawling and hotspot analysis system and provides reference and directions for future work.
随着互联网的快速发展,越来越多的专业和详细的信息来源,如问答网站逐渐形成。在这些社交问答平台上,每分钟都有大量的热门话题和新闻被讨论甚至创造出来。因此,通过对社交问答平台上的内容进行分析和解析,了解社会热点问题具有重要的现实意义。本文以某社交问答平台为研究对象,分析了该平台数据抓取的难点及解决方案,设计并实现了一个数据抓取系统,该系统包含用户信息存储模块、高度匿名且可用的代理维护模块、节点抓取解析模块和数据存储模块。通过这些模块,系统能够抓取数据并存储数据,而不受平台的限制。在此基础上,设计并实现了热点解析分级模块。基于电子图表,设计了历史热点显示模块和趋势热点显示模块,实现了该平台的历史热点和趋势热点显示。然后,本文利用所提出的数据抓取模块和热点分析显示系统,从该社交问答平台获取了31520个正则化独立话题的数据和979815个问题的实时数据。基于这些数据,展示了该平台的历史和趋势热点分析。实验结果表明,该系统完全达到了设计目标。最后,对本研究提出的数据抓取和热点分析系统进行总结,为今后的工作提供参考和方向。
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引用次数: 0
Research on Construction of Informationization Management System After "the Replacement of the Business Tax with a Value-Added Tax" of Construction Industry 建筑业“营改增”后信息化管理系统建设研究
Jingqiu Yang, Yan-li Wang
This paper describes meaning of integrating tax information into informationization management system after "the replacement of the business tax with a value-added tax" through analyzing operation characteristics and management information status of construction industry, which promotes application of interconnected Internet of things technique in management informationization system of construction industry; in addition, the thesis constructs management informationization system module system of construction industry with the hope that it can provide certain reference value for informationization construction of construction enterprises.
本文通过分析建筑业的经营特点和管理信息化现状,阐述了“营改增”后将税收信息融入信息化管理系统的意义,促进了物联网技术在建筑业管理信息化系统中的应用;此外,本文还构建了建筑行业管理信息化系统模块体系,希望能为建筑企业的信息化建设提供一定的参考价值。
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引用次数: 1
Data Storage Method of Meteorological Satellite Ground Application System Based on Object Storage 基于对象存储的气象卫星地面应用系统数据存储方法
Lan Wei, Manyun Lin, Xian-Gang Zhao, Lizi Xie, Peng Guo, Cunqun Fan
Meteorological satellite data growth, relying solely on the increase in hardware storage is difficult to meet the data growth requirements. There are several ways to store the data platform cannot be shared or large data block fast transfer. In this paper, a data storage method for meteorological satellite terrestrial application system based on object storage is proposed, which is based on Client File System (CFS), Directory Path Index Server (DPIS), Medadata Server (MDS) and Object Storage Target (OST) Four systems were designed. The proposed method can realize the fast transmission of large data blocks under the premise of guaranteeing the sharing of data platform.
气象卫星数据的增长,单纯依靠硬件存储的增加很难满足数据增长的要求。有几种存储数据的方式可以实现平台无法共享或大数据块的快速传输。提出了一种基于对象存储的气象卫星地面应用系统数据存储方法,该方法基于客户端文件系统(CFS)、目录路径索引服务器(DPIS)、元数据服务器(MDS)和对象存储目标(OST),设计了4个系统。该方法可以在保证数据平台共享的前提下实现大数据块的快速传输。
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引用次数: 0
An Analysis about the Security of the Current Open Source Cloud Platform 当前开源云平台的安全性分析
Tie Hong, Jiangchun Ren
Cloud computing is convenience, flexibility, costeffective, making it the rapid development. Cloud computing business have been developed by many famous IT companies such as Microsoft, Google, Amazon, and we call it Cloud Service Provider (CSP). Many small companies also want to deploy their services on the cloud for reducing their costs. However, one issue that can't be ignored is that security needs to be analyzed before the cloud platform deployment. The current consensus is that security of cloud is the biggest obstacle to its development. Current cloud security issues are mainly concentrated in the theoretical stage, manifested in what cloud platform should have to ensure security; each cloud platform has its own implementation, and does not disclose its security implementation mechanisms. Therefore, for companies who want to deploy their own private cloud platform, open source cloud platform is a good choice. This paper focus on the mainstream open source cloud platform (OpenStack, CloudStack, Eucalyptus), and make an analysis of the security to the user as a reference when they choosing the open source cloud platform.
云计算的便捷性、灵活性、性价比使其得到迅速发展。云计算业务已经被许多著名的IT公司如微软、谷歌、亚马逊开发出来,我们称之为云服务提供商(CSP)。许多小公司也希望在云上部署他们的服务,以降低成本。但是,有一个不容忽视的问题是,在部署云平台之前,需要对安全性进行分析。目前的共识是云的安全性是其发展的最大障碍。当前的云安全问题主要集中在理论阶段,表现在云平台应该具备哪些安全保障;每个云平台都有自己的实现,不公开其安全实现机制。因此,对于想要部署自己私有云平台的企业来说,开源云平台是一个不错的选择。本文以主流开源云平台(OpenStack、CloudStack、Eucalyptus)为研究对象,对其安全性进行分析,供用户选择开源云平台时参考。
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引用次数: 0
Routing Table Decomposition in Line Cards with Different Capacity 不同容量线路卡的路由表分解
Heyang Chen, Wen-Long Chen, Shuo Zhang
Researchers in routing table decomposition have got many achievements but never considered the situation of line card with different capacity. Generally, decomposed storage algorithm pursues storing uniformity in order to enhance the utilization of storage. In line cards with different capacity, measuring the uniformity needs a new standard. Proposed Routing Table Decomposition of Line Cards with Different Capacity, namely RELI, decomposes the binary route tree created by all route entries to group the whole route table, making the stored saturation of line cards even and converging to a threshold value. It helps to decompose the routing table into line cards with different capacity uniformly, control the number of items in line cards, and reduce the number of locating route as possible. Furthermore, RELI algorithm can also decompose and store routing table into line cards with same capacity.
路由表分解的研究成果较多,但没有考虑不同容量线路卡的情况。分解存储算法一般追求存储均匀性,以提高存储利用率。在不同容量的线卡中,测量均匀性需要一个新的标准。提出的不同容量线卡路由表分解(RELI),将所有路由表项生成的二叉路由树进行分解,对整个路由表进行分组,使线卡的存储饱和均匀并收敛到一个阈值。有助于将路由表统一分解为不同容量的线卡,控制线卡中的项目数量,尽可能减少定位路由的数量。此外,RELI算法还可以将路由表分解并存储为相同容量的线卡。
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引用次数: 0
Dynamic Remote Attestation Service for Virtual Machine on the IaaS Cloud Platform IaaS云平台虚拟机动态远程认证服务
Huaizhe Zhou, Haihe Ba, Jiangchun Ren, Yong Chen, Yongjun Wang, Zhiying Wang
While the Infrastructure-as-a-Service (IaaS) cloud computing model has become a compelling computing solution, the security concerns on the data and application integrity in the virtual machines (VMs) have drastically restricted its widespread adoption. Although numerous researches have been dedicated to deal with the aforementioned issues, it still remains a challenge for now. In this paper, we present DRAS, a novel framework for remote attestation on VMs in IaaS cloud. It combines trusted computing with virtual machine introspection to provide flexible measurement for targeted VMs in a stealthy manner, which is more robust to malicious attackers. Moreover, we minimize the impact on platform performance and reduce trusted computing base by separating integrity measurement and attestation service from privileged domain to a dedicated secure VM. We show a concrete implementation of DRAS and a prototype based on Xen hypervisor.
虽然基础设施即服务(IaaS)云计算模型已经成为一种引人注目的计算解决方案,但对虚拟机(vm)中数据和应用程序完整性的安全性问题极大地限制了其广泛采用。尽管已经有大量的研究致力于解决上述问题,但目前仍然是一个挑战。本文提出了一种基于IaaS的虚拟机远程认证框架DRAS。它将可信计算与虚拟机自省相结合,以一种隐蔽的方式为目标虚拟机提供灵活的测量,对恶意攻击者更具鲁棒性。此外,我们通过将完整性测量和认证服务从特权域分离到专用的安全VM,最大限度地减少了对平台性能的影响,并减少了可信计算基础。我们展示了DRAS的具体实现和基于Xen管理程序的原型。
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引用次数: 0
A Software System Model Based on Dynamic Self-Monitor 基于动态自我监控的软件系统模型
Lijun Zhang, Xi-Sheng Zhang
This paper design a software model which implement self-security checking mechanism. The core of this model is through dynamical checking pre-designed data from the program file, to detect software intrusion and tamper, so could protect software function from being distorted.
本文设计了一个实现自安全校验机制的软件模型。该模型的核心是通过动态检查程序文件中预先设计的数据,检测软件的入侵和篡改,从而保护软件功能不被扭曲。
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引用次数: 0
Resource Allocation Algorithm of Velocity Estimation for MIMO Radar MIMO雷达速度估计的资源分配算法
Liuyang Gao, Jianfeng Feng, Mingzhong Liu, Wenxiu Li
We propose a resource allocation algorithm combining transmit power and signal effective time-width joint optimization to improve the multi-target tracking performance and to achieve better accuracy of velocity estimation under the condition of limited system resources for MIMO radar. An optimization mode is established with two optimal parameters: the transmit power and the effective time of the signal to minimize the CRLB and solve this nonconvex optimization model by the sequential parameter convex estimation (SPCA) algorithm. Simulation results show that the proposed algorithm can significantly improve the estimation accuracy of target velocity and the effect on the accuracy of target velocity estimation of signal effective time-width is more than that of the transmitted power.
为了提高MIMO雷达在有限系统资源条件下的多目标跟踪性能和速度估计精度,提出了一种结合发射功率和信号有效时宽联合优化的资源分配算法。建立了以发射功率和信号有效时间为最优参数使CRLB最小的优化模型,并采用序列参数凸估计(SPCA)算法求解该非凸优化模型。仿真结果表明,该算法能显著提高目标速度估计精度,且信号有效时宽对目标速度估计精度的影响大于发射功率对目标速度估计精度的影响。
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引用次数: 0
Water Level Prediction Based on Polyelement Correlation Analysis and Improved BP Neural Network 基于多元相关分析和改进BP神经网络的水位预测
Hong-Peng Sun, Xiaoling Xia, Jia-jin Le, Hao Huang
To discover the useful information in a large amount of hydrological data set becomes a big challenge in hydrological data mining. Water level Prediction has great significance for the state flood control. However, current approaches has low accuracy and bad adaptability. In this paper, we put forward a new forecasting approach based on polyelem-ent correlation analysis and improved BP neural network. First, we used correlation analysis technique to obtain the most relatively influential factors of water level, rainfall and temperature. These two factors and water level were put together to train the improved double-hidden neural network model, then we used LMDP optimization algorithm to optimize the model. The data of experiment is the daily water level, rainfall and temperature data from Zhari Namco observation station. The experimental results based on the five evaluation criteria demonstrate that the proposed method has high accuracy, low error and be superior to the traditional prediction model.
如何从大量的水文数据集中发现有用的信息成为水文数据挖掘的一大挑战。水位预报对国家防洪具有重要意义。然而,现有的方法精度低,适应性差。本文提出了一种基于多元相关分析和改进BP神经网络的预测方法。首先,利用相关分析技术得到水位、降雨量和温度三者的相对影响因子。将这两个因素和水位结合起来训练改进的双隐神经网络模型,然后使用LMDP优化算法对模型进行优化。实验数据为扎里南错观测站的日水位、日降雨量和日气温数据。基于五个评价标准的实验结果表明,该方法精度高、误差小,优于传统预测模型。
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引用次数: 1
Integration of Real-Time Air Pollution Analysis and Mapping Based on Multisource Data 基于多源数据的实时空气污染分析与制图集成
Chen Chen, Qiang Liu, Pei-wen Liu, Yaosen Huang, Wei-qing Li, Hao Luo
This paper presents a novel method of real-time air pollution analysis. First, we acquire real-time air quality data in several methods via Internet. Second, by combining them with population, elevation, and industry information, we analyze the air quality using the classification model of random forest. Last, we generate on-the-fly thematic maps automatically to visualize the classification results.
本文提出了一种实时空气污染分析的新方法。首先,我们通过互联网通过多种方法获取实时空气质量数据。其次,结合人口、海拔和行业信息,采用随机森林分类模型对空气质量进行分析。最后,自动生成动态专题地图,实现分类结果的可视化。
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引用次数: 0
期刊
2017 International Conference on Network and Information Systems for Computers (ICNISC)
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