检索结果-内蒙古大学图书馆

A framework for workload aware SaaS platform data management

Journal of Computational Information Systems 2014年第22期10卷 9699-9706页

作者： Guo, Wei Wang, Xinjun Shandong Provincial Key Laboratory of Software Engineering School of Computer Science and Technology Shandong University Ji'nan China

Cloud computing is a new emerging way by which hardware and software resources can be shared on demand to computers and other devices via the Internet. Cloud computing platform has now become a new platform for enterprises and personal computing. The data placement issues in cloud computing platform have been extensively studied and researched in the past years. In this paper, based on the workload information derived from system logs, we design an overall system architecture for the method of placing data replica and dynamic selection of data replica from a higher level. We model the previous query workload as a hypergraph which contains a set of data items, then formulate and analyze the problem of replica placement by the graph theory concepts. We use these concepts to develop a series of algorithms to decide which data items to replicate, and where to place the replicas. Based on this system architecture, we designed the workload-driven replica selection and placement algorithm. According to this algorithm, we can minimize the average query range of the involved transactions. Our experiments show that the fine-grained data placement and replication method can dramatically reduce the average query range resulting in significant reductions in the resource consumption in cloud computing platform.

关键词： Cloud computing

来源：评论

学校读者我要写书评

暂无评论

Computing Unbalanced Degree of Signed networks Based on Culture Algorithm

Computing Unbalanced Degree of Signed Networks Based on Cult...

引用

International Conference on Cloud Computing and Big Data (CCBD)

作者： Xiaohui Zhao Fangai Liu Yongxin Zhang Jiwei Wang School of Information Science & Engineering Shandong Normal University Jinan China Shandong Provincial Key Laboratory for Distributed Computer Software Technology Jinan China School of Mathematical Science Shandong Normal University Jinan China Shandong Provincial Key Laboratory of Software Engineering Jinan China

Signed network is the network with both positive and negative links. Many real-world complex systems can be represented as signed networks, which are unbalanced according to structural balance theory. Unbalanced degree of signed networks is the distance to exact balance. Evaluating unbalanced degree of signed networks is a NP-hard problem, which has attracted many attentions. Many approaches are developed to compute structural balance. However, the results obtained by these approaches are unsatisfactory. In this study, the computation of unbalanced degree is convert to an optimization problem whose object function is come from the Hamiltonian of Edwards-Anderson spin glass model. We use a new Cultural Algorithm named CA-SNB to solve the optimization problem. The Cultural Algorithm, a new computable framework of Evolution Algorithm, has been successfully applied to many areas. In CA-SNB, the evolution of population space and belief space is based on Genetic Algorithm and greedy strategy respectively. Experiments on social and biological networks show the excellent effectiveness and efficiency of the proposed method.

关键词： Sociology Statistics Cultural differences Linear programming Glass Algorithm design and analysis Social network services

来源：评论

学校读者我要写书评

暂无评论

3D garment segmentation based on semi-supervised learning method

引用

Journal of Fiber Bioengineering and Informatics 2015年第4期8卷 657-665页

作者： Huang, Mian Liu, Li Liu, Ruomei Fu, Xiaodong Liu, Lijun Yunnan Provincial Key Laboratory of Computer Technology Application Faculty of Information Engineering and Automation Kunming University of Science and Technology Kunming China National Engineering Research Center of Digital Life State-Province Joint Laboratory of Digital Home Interactive Applications School of Data and Computer Science Sun Yat-sen University Guangzhou China

In this paper, we propose a semi-supervised learning method to simultaneous segmentation and labeling of parts in 3D garments. The key idea in this work is to analyze 3D garments using semi-supervised learning method which can label parts in various 3D garments. We first develop an objective function based on Conditional Random Field (CRF) model to learn the prior knowledge of garment components from a set of training examples. Then, we exploit an effective training method that utilizes JointBoost classifiers based on the co-analysis for garments. And we modify the JointBoost to automatically cluster the segmented components without requiring manual parameter tuning. The purpose of our method is to relieve the manual segmentation and labeling of components in 3D garment collections. Finally, the experimental results show the performance of our proposed method is effective. © 2015 Binary Information Press & Textile Bioengineering and Informatics Society December 2015.

关键词： Random processes

来源：评论

学校读者我要写书评

暂无评论

A survey of major techniques of clothing in vision

引用

Journal of Fiber Bioengineering and Informatics 2015年第4期8卷 725-732页

作者： Huang, Dongyan Liu, Li Fu, Xiaodong Liu, Lijun Huang, Qingsong Yunnan Provincial Key Laboratory of Computer Technology Application Faculty of Information Engineering and Automation Kunming University of Science and Technology Kunming China National Engineering Research Center of Digital Life State-Province Joint Laboratory of Digital Home Interactive Applications School of Data and Computer Science Sun Yat-sen University Guangzhou China

Clothing in vision plays an important role in many applications of digital clothing, virtual fitting, fashion design and manufacturing. The research of clothing in vision is full of technical challenges, such as background detection and features extraction. In this paper, we introduce the latest remarkable works of clothing in vision area, including clothing segmentation, clothing recognition and clothing retrieval. There are many remarkable advances on the basis of the predecessors' achievements in the three fields. Firstly, we provide an overview of the techniques for clothing segmentation and clothing recognition. Then, we introduce and analyze the representative works on clothing retrieval. Finally, we forecast broader application prospect and future research work of clothing in vision. © 2015 Binary Information Press & Textile Bioengineering and Informatics Society December 2015.

关键词： Textiles

来源：评论

学校读者我要写书评

暂无评论

Privacy preserving for network coding in smart grid 15th

Privacy preserving for network coding in smart grid

引用

15th International Conference on Algorithms and Architectures for Parallel Processing, ICA3PP 2015

作者： He, Shiming Zeng, Weini Xie, Kun Hunan Provincial Key Laboratory of Intelligent Processing of Big Data on Transportation School of Computer and Communication Engineering Hunan Province Engineering Research Center of Electric Transportation and Smart Distributed Network Changsha University of Science and Technology Changsha410114 China The 716th Research Institute China Shipbuilding Industry Corporation Lianyungang222061 China College of Computer Science and Electronics Engineering Hunan University Changsha410082 China Department of Electrical and Computer Engineering State University of New York at Stony Brook New York United States

ISBN: (纸本)9783319271361

In smart grid, privacy implications to individuals and their family is an important issue, due to the fine-grained usage data collection. Wireless communications are considered by many utility companies to obtain information. Network coding is exploited in smart grids, to enhance network performance in terms of throughput, delay, robustness, and energy consumption. However, Network Coding introduces new challenge for privacy preserving due to the encoding of packet in forwarder nodes. We propose a distributed privacy preserving scheme for network coding in smart grid, which considers the converged flows character of smart grid and exploits a homomorphic encryption function to decrease the complex in forwarder node. The message content of packet is encrypted and the tag of packet is encrypted by homomorphic encryption function. Then the forwarder node linear random codes the encrypted message contents and directly processes the tags cryptotext based on the homomorphism feature. It offers message content confidentiality privacy preserving feature, which can efficiently thwart traffic analysis. Extensive security analysis and performance evaluations demonstrate the validity and efficiency of the proposed scheme. © Springer International Publishing Switzerland 2015.

关键词： Smart power grids

来源：评论

学校读者我要写书评

暂无评论

An improved group search optimizer for multi-objective problems

引用

ICIC Express Letters, Part B: Applications 2015年第9期6卷 2623-2628页

作者： Zheng, Xiangwei Li, Yazhou Lang, Xianting Lu, Dianjie Liu, Hong School of Information Science and Engineering Shandong Normal University No. 88 East Wenhua Road Jinan China Shandong Provincial Key Laboratory for Distributed Computer Software Novel Technology Jinan China

In order to enhance the convergence ability of multi-objective group search optimizer (MGSO) and solution distribution of non-dominated Pareto set, a novel multiobjective group search optimizer based on multiple producers and crossover operator of genetic algorithm (MCGSO) is proposed in this paper. The producer of MCGSO is extended from one to multiple ones;the metropolis rule of simulation annealing algorithm is introduced into the search pattern of producers and rangers’ search strategies and crossover operator are combined. Experimental results demonstrate that MCGSO can effectively and efficiently solve multi-objective optimization problems compared with similar algorithms such as NSGA-II and other MGSOs. © 2015 ISSN 2185-2766.

关键词： Multiobjective optimization

来源：评论

学校读者我要写书评

暂无评论

Joint Relay Selection and Resource Allocation for D2D-enabled Cellular Communications

Joint Relay Selection and Resource Allocation for D2D-enable...

引用

IEEE International Conference on Ubiquitous Computing and Communications

作者： Guopeng Zhang Shuanshuan Wu Lin Chen Bo Dai Ru Wang Liqiang Zhao Kun Yang State Key Laboratory of Integrated Services Networks Xidian university Xi'an 710071 Shaanxi China The School of Computer Science and Technology China University of Mining and Technology Xuzhou 221008 Jiangsu China Wireless Advanced Research Department ZTE Corporation Xi'an/Shenzhen 710114/518055 China State Key Laboratory of Integrated Services Networks Xidian university Xi'an 710071 Shaanxi China State Key Laboratory of Integrated Services Networks Xidian university Xi'an 710071 Shaanxi China School of Computer Science and Electronic Engineering University of Essex Wivenhoe Park Colchester C04 3SQ Essex UK

ISBN: (纸本)9781509001552

Device-to-device (D2D) communications allow direct transmissions between two proximate user equipments (UEs) under the control of base stations (BSs), which can improve local services and spectrum efficiency in cellular networks. In this paper, we propose an efficient resource allocation scheme and a low complexity relay selection strategy for D2D communications enabled cellular networks, where a D2D UE can act as a source as well as a potential relay for other UEs. Consider the selection cooperation (SC) rule which restricts relaying for a D2D transmitter to only one relay (i.e., another D2D transmitter) is imposed. First, we formulate the resource allocation problem for the cooperative D2D transmitters as a bargaining game. By solving the Nash bargaining solution (NBS) of the game, proportional fair (PF) rate allocation for the D2D communications can be achieved. Next, to implement the SC rule, a simple heuristic is proposed which is used to maintain the long-term priority fairness of relay selection for each D2D link. The proposed algorithm has a low computational complexity of 0(N~2), where N is the number of cooperative D2D transmitters in a game. Simulation results demonstrate the system efficiency and fairness properties of the proposed scheme.

关键词： mobile cellular networks Device-to-Device (D2D) communications relay selection fairness

来源：评论

学校读者我要写书评

暂无评论

Design and Implementation of Student Information Management System

Design and Implementation of Student Information Management ...

引用

2015 International Conference on Advances in Management Engineering and Information technology(AMEIT 2015)

作者： Y.S.Zhang J.Ma A.Q.Bao Y.Li School of Information Science and Engineering Shandong Normal University Shandong Provincial Key Laboratory for Novel Distributed Computer Software Technology School of History and Social Development Shandong Normal University

According to the students' independent selection of course and the management of courses and grades of administrators, it were designed two aspects. First of all, the analysis of the basic running principles of PHP program and use all events application programming of PHP and MyS QL specific methods to create the database and tables, to link the MyS QL database statement right into practice, implementation planning project development overall design and components, play the spirit of cooperation between modules. The function of students' online information, course selection, course information query of teachers, the final score function, the curriculum and the data management function of administrators were achieved. The problem of the three rights in access and the management of system has solved.

关键词： PHP My SQL database

来源：评论

学校读者我要写书评

暂无评论

Context-aware computing for smart home environment

引用

Journal of Computational Information Systems 2015年第15期11卷 5453-5460页

作者： Liu, Li Fu, Xiaodong Liu, Lijun Huang, Qingsong Yunnan Provincial Key Laboratory of Computer Technology Application Faculty of Information Engineering and Automation Kunming University of Science and Technology Kunming China State-Province Joint Laboratory of Digital Home Interactive Applications School of Information Science & Technology Sun Yat-sen University Guangzhou China

Context-aware computing has proven to be successful in collecting and understanding various sensor data. However, providing an intelligent service by exploiting the collected context data from heterogeneous sensors is difficult on smart home because it is a complex environment with various devices and appliances. In this paper, we propose a context-aware computing approach for heterogeneous smart home environments. The key idea in this work is to integrate large-scale home context information from multiple heterogeneous sensors. We first define a semantic decision by context-aware inference including rule, inference and pattern driven. Then, a designed architecture that manages home environment is developed between large numbers of heterogeneous information entities and enhances intelligence abilities. Using the established rules and inferences, the proposed method is applicable for intelligent home to further discover more useful representative activities and personalized services with inhabitant needs. Experimental results show the effectiveness of our proposed method. Copyright © 2015 Binary Information Press.

关键词： Semantics

来源：评论

学校读者我要写书评

暂无评论

Verifiable Search for Dynamic Outsourced Database in Cloud Computing

Verifiable Search for Dynamic Outsourced Database in Cloud C...

引用

International Conference on Broadband, Wireless Computing, Communication and Applications (BWCCA)

作者： Jianfeng Wang Xiaofeng Chen Jin Li Fujian Provincial Key Laboratory of Network Security and Cryptology Fuiian Normal University Fuzhou PRChina State Key Laboratory of Integrated Service Networks (ISN) Xidian University Xidian China School of Computer Science Guangzhou University Guangzhou China

ISBN: (纸本)9781467383165

The notion of database outsourcing enables the data owner to delegate the database management to a cloud service provider (CSP) that provides various services to users of the database. It is inevitably to bring in new security challenges such as data privacy and query integrity. Although the issue of data privacy can be solved by database encryption techniques, query integrity is still an important challenge in database outsourcing scenario. Recently, some researchers present a verifiable auditing scheme, which can simultaneously achieve the correctness and completeness of search results even if the CSP intentionally returns an empty set. However, it requires the data owner to count the number of each identical item before outsourcing the database, which seems that this work cannot be effectively adoptable in dynamic database scenario. In this paper, we present a new verifiable search scheme for outsourced database supporting data update operation without any pre-computation.

关键词： Databases Outsourcing Encryption Cloud computing Concrete

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：