2013 8th International Conference on Computer Engineering & Systems (ICCES)最新文献_第5页

Fault tolerant heterogeneous scheduling for precedence constrained task graphs using simulated annealing 基于模拟退火的优先级约束任务图容错异构调度

2013 8th International Conference on Computer Engineering & Systems (ICCES) Pub Date : 2013-11-01 DOI: 10.1109/ICCES.2013.6707224

Hassan A. Youness, A. Omar, M. Moness

引用次数: 2

A robust methodology for solder joints extraction 一种可靠的焊点提取方法

2013 8th International Conference on Computer Engineering & Systems (ICCES) Pub Date : 2013-11-01 DOI: 10.1109/ICCES.2013.6707217

M. Abdelhameed, M. A. Awad, Hend M. Abd El-Aziz

引用次数: 3

A high-rate chaotic secured covert channel based on multiple embedding in images 一种基于图像多重嵌入的高速混沌安全隐蔽信道

2013 8th International Conference on Computer Engineering & Systems (ICCES) Pub Date : 2013-11-01 DOI: 10.1109/ICCES.2013.6707220

Ashraf Seleym

{"title":"A high-rate chaotic secured covert channel based on multiple embedding in images","authors":"Ashraf Seleym","doi":"10.1109/ICCES.2013.6707220","DOIUrl":"https://doi.org/10.1109/ICCES.2013.6707220","url":null,"abstract":"Covert channel is a type of secure communications that provides reliable security in transferring information between entities. Quantization Index Modulation (QIM) technique can be used to embed data in images to implement covert communication channels. In single embedding in QIM, each sample is quantized once to carry a single bit of the secret message. Double embedding in QIM was introduced by Sarkar and Manjunath in 2009, to increase the transferred data rate where a single sample is quantized twice to carry two bits in time. In this paper, a higher data transmission rate covert channel is developed using multiple embedding in the QIM framework with multi quantization vectors. This approach considers the embedding process as a communications problem, that it uses a structured scheme of Multiple Trellis-Coded Quantization jointed with Multiple Trellis-Coded Modulation (MTCQ/MTCM) to generate the stego-space. This technique returns a PSNR ≥ 40 dB. More over, increasing the coding states and/or the coding multiplicity returns an altered space with low correlated coefficients, thus improving the transferred data detection error rate performance. To secure the modulation process, the altered coefficients are chaotic scrambled by the 2-D Arnold Cat Map before embedding to increase the uncertainty in case of an attacker discovered the channel.","PeriodicalId":277807,"journal":{"name":"2013 8th International Conference on Computer Engineering & Systems (ICCES)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124262072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Secured steganography algorithm based random function 基于随机函数的安全隐写算法

2013 8th International Conference on Computer Engineering & Systems (ICCES) Pub Date : 2013-11-01 DOI: 10.1109/ICCES.2013.6707209

Hamdy M. Mousa

引用次数: 3

QT correction for fiducial ECG features based biometric systems 基于生物识别系统的基础心电图特征QT校正

2013 8th International Conference on Computer Engineering & Systems (ICCES) Pub Date : 2013-11-01 DOI: 10.1109/ICCES.2013.6707196

M. Tantawi, M. Tolba, A. Salem, K. Revett

引用次数: 2

NNMonitor: Performance modeling for database servers NNMonitor:数据库服务器的性能建模

2013 8th International Conference on Computer Engineering & Systems (ICCES) Pub Date : 2013-11-01 DOI: 10.1109/ICCES.2013.6707223

AbdAlhamid Khattab, Alsayed Algergawy, A. Sarhan

{"title":"NNMonitor: Performance modeling for database servers","authors":"AbdAlhamid Khattab, Alsayed Algergawy, A. Sarhan","doi":"10.1109/ICCES.2013.6707223","DOIUrl":"https://doi.org/10.1109/ICCES.2013.6707223","url":null,"abstract":"Database Management Systems (DBMSs) are the cores of most information systems. Database administrators (DBAs) face increasingly more challenges due to the systems growing complexity and must be proficient in areas, such as capacity planning, physical database design, DBMS tuning and DBMS management. Furthermore, DBAs need to implement policies for effective workload scheduling, admission control, and resource provisioning. In response to these challenges we focus our attention on the development of online DBMS performance model. We aim to meet service level agreements (SLAs) and maintain peak performance for DBMS. To this end, we propose a neural network-based performance model called NNMonitor that can predict the performance metrics of DBMS online and determines if the DBMS needs to tune or not before entering into a complex tuning process. We make use of neural networks to build our proposed model taking into account the interaction among concurrently executing queries and predict throughput. The experimental evaluation demonstrates that this model is capable of predicting the performance metrics of real database servers with high accuracy.","PeriodicalId":277807,"journal":{"name":"2013 8th International Conference on Computer Engineering & Systems (ICCES)","volume":"495 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127017155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

FPGA-based implementation of channel-blind adaptive equalizers 基于fpga的信道盲自适应均衡器实现

2013 8th International Conference on Computer Engineering & Systems (ICCES) Pub Date : 2013-11-01 DOI: 10.1109/ICCES.2013.6707204

Saud Alrumaih, A. Alghaihab, A. Ragheb, T. Alshawi, S. Alshebeili, H. Fathallah

引用次数: 1

Performance evaluation of dynamic resource allocation in cloud computing platforms using Stochastic Process Algebra 基于随机过程代数的云计算平台动态资源分配性能评价

2013 8th International Conference on Computer Engineering & Systems (ICCES) Pub Date : 2013-11-01 DOI: 10.1109/ICCES.2013.6707168

D. Shawky

引用次数: 4

Performance evaluation and comparison of the top market virtualization hypervisors 顶级市场虚拟化管理程序的性能评估和比较

2013 8th International Conference on Computer Engineering & Systems (ICCES) Pub Date : 2013-11-01 DOI: 10.1109/ICCES.2013.6707169

A. Elsayed, Nashwa Abdelbaki

{"title":"Performance evaluation and comparison of the top market virtualization hypervisors","authors":"A. Elsayed, Nashwa Abdelbaki","doi":"10.1109/ICCES.2013.6707169","DOIUrl":"https://doi.org/10.1109/ICCES.2013.6707169","url":null,"abstract":"The virtualization of IT infrastructure enables the consolidation and pooling of IT resources so that they can be shared over diverse applications to offset the limitation of shrinking resources and growing business needs. It provides a logical abstraction of physical computing resources and creates computing environments that are not restricted by physical configuration or implementation. Virtualization is very important for cloud computing because the delivery of services is simplified by providing a platform for optimizing complex IT resources in a scalable manner, which makes cloud computing more cost effective. Hypervisor plays an important role in the virtualization of hardware. It is a piece of software that provides a virtualized hardware environment to support running multiple operating systems concurrently using one physical server. The hypervisor type introduces significant impacts on the virtualization environment performance. The intent of this paper is to quantitatively and qualitatively compare the performance of the latest shipping versions of the VMware ESXi5, Citrix Xen Server 6.0.2 and Hyper-Hyper-V2008R2 Hypervisors at time of this study using customized SQL instance as workload simulating real life situations. This Paper helps both IT decision makers and end users to choose the right virtualization hypervisor and their readiness for enterprise datacenters and cloud infrastructure.","PeriodicalId":277807,"journal":{"name":"2013 8th International Conference on Computer Engineering & Systems (ICCES)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127225037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 23

A trust management system for ad-hoc mobile clouds 一个用于自组织移动云的信任管理系统

2013 8th International Conference on Computer Engineering & Systems (ICCES) Pub Date : 2013-11-01 DOI: 10.1109/ICCES.2013.6707167

A. Hammam, S. Senbel

引用次数: 13