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2006 International Conference on Computer Engineering and Systems最新文献

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An HCI Pattern Language Management Tool HCI模式语言管理工具
2006 International Conference on Computer Engineering and Systems Pub Date : 2006-11-01 DOI: 10.1109/ICCES.2006.320471
R. Badr, H. Hosny
{"title":"An HCI Pattern Language Management Tool","authors":"R. Badr, H. Hosny","doi":"10.1109/ICCES.2006.320471","DOIUrl":"https://doi.org/10.1109/ICCES.2006.320471","url":null,"abstract":"One of the major problems faced by all pattern language builders, is how to manage their languages. In this e-search work, an HCI pattern language management tool (HCI PLMT) was developed based on the ontological-approach we proposed in the work of Badr (2005). The HCI PLMT is an automated tool that manages the searching and browsing of patterns existing within the HCI pattern language that we also proposed in the work of Badr (2005). The PLMT manages the addition of new user interface design patterns to the language and their connection to the existing patterns. It also supports the modification of patterns and/or links existing within the pattern language, as well as the addition of new links between existing entries within the HCI pattern language. The HCI PLMT is evaluated to prove its validity and acceptance","PeriodicalId":261853,"journal":{"name":"2006 International Conference on Computer Engineering and Systems","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114903943","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: 1
Global False Coupling Interaction-Aware Hierarchical Timing Analysis 全局假耦合感知交互的分层时序分析
2006 International Conference on Computer Engineering and Systems Pub Date : 2006-11-01 DOI: 10.1109/ICCES.2006.320416
Xiaoxiao Liu, Jian Wang, Guangsheng Ma, Yonghui Zhao
{"title":"Global False Coupling Interaction-Aware Hierarchical Timing Analysis","authors":"Xiaoxiao Liu, Jian Wang, Guangsheng Ma, Yonghui Zhao","doi":"10.1109/ICCES.2006.320416","DOIUrl":"https://doi.org/10.1109/ICCES.2006.320416","url":null,"abstract":"Neighboring line switching can contribute to a large portion of the delay of a line for today's deep submicron designs. A hierarchical design is unavoidable because of a huge circuit size. It is more important how we can consider hierarchically meaningful structure in circuit delay analysis. To improve accuracy of hierarchical timing analysis, in this paper we inject the notions of local false coupling interaction and global false coupling interaction, then propose a comprehensive approach that uses functional relations considering global false coupling interactions generated by connections between modules to identify valid coupling interaction. We present results on several benchmark circuits that show the value of considering the global false coupling interaction to reduce excessive conservatism during hierarchical timing analysis","PeriodicalId":261853,"journal":{"name":"2006 International Conference on Computer Engineering and Systems","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127682425","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: 0
Simulation of Quantum Transport in Ballistic Double-Gate MOSFETs using Transfer Matrix Method 用转移矩阵法模拟弹道双栅mosfet中的量子输运
2006 International Conference on Computer Engineering and Systems Pub Date : 2006-11-01 DOI: 10.1109/ICCES.2006.320431
T. Abdolkader
{"title":"Simulation of Quantum Transport in Ballistic Double-Gate MOSFETs using Transfer Matrix Method","authors":"T. Abdolkader","doi":"10.1109/ICCES.2006.320431","DOIUrl":"https://doi.org/10.1109/ICCES.2006.320431","url":null,"abstract":"Numerical simulation of nanoscale double gate MOSFET depends mainly on the accurate representation of quantum-mechanical effects. These effects include, mainly, the quantum confinement of carriers by gate-oxides in the direction normal to the interfaces, and the quantum transport of carriers along the channel. In a previous work, the use of transfer matrix method (TMM) was proposed for the simulation of the first effect. In this work, TMM is proposed to be used for the solution of Schrodinger equation with open boundary conditions to simulate the second quantum-mechanical effect. Transport properties such as transmission probability, carrier concentration, and I-V characteristics resulting from quantum transport simulation using TMM are compared with that using the traditional tight-binding model (TBM). Comparison showed that, when the same mesh size is used in both methods, TMM gives more accurate results than TBM","PeriodicalId":261853,"journal":{"name":"2006 International Conference on Computer Engineering and Systems","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126788902","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: 3
Implementing GP on Optimizing Boolean and Extended Boolean Queries in IRs With Respect to Users Profiles 在用户配置文件中优化布尔查询和扩展布尔查询的GP实现
2006 International Conference on Computer Engineering and Systems Pub Date : 2006-11-01 DOI: 10.1109/ICCES.2006.320483
S. Owais, P. Kromer, V. Snás̃el
{"title":"Implementing GP on Optimizing Boolean and Extended Boolean Queries in IRs With Respect to Users Profiles","authors":"S. Owais, P. Kromer, V. Snás̃el","doi":"10.1109/ICCES.2006.320483","DOIUrl":"https://doi.org/10.1109/ICCES.2006.320483","url":null,"abstract":"Rapidly growing amount of data available on World Wide Web (WWW). Data as the ultimate collection of public accessible text documents complicates the task of acquiring usable and relevant information from raw data. Several of improvement methods and optimization in information retrieval (IR) systems (IRs) providing user interaction with WWW documents have been introduced and discussed. In this paper, theory and application of genetic programming (GP) was implemented as an optimization method of modern user oriented IR. And, fuzzy IRs (FIRs) was implemented through optimization of search queries","PeriodicalId":261853,"journal":{"name":"2006 International Conference on Computer Engineering and Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130250308","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: 8
Sub-Carrier Allocation using Channel Prediction for OFDMA systems based on IEEE 802.16 Standard 基于IEEE 802.16标准的OFDMA系统的信道预测子载波分配
2006 International Conference on Computer Engineering and Systems Pub Date : 2006-11-01 DOI: 10.1109/ICCES.2006.320475
K. El Defrawy, M. Khairy, A. Nassar
{"title":"Sub-Carrier Allocation using Channel Prediction for OFDMA systems based on IEEE 802.16 Standard","authors":"K. El Defrawy, M. Khairy, A. Nassar","doi":"10.1109/ICCES.2006.320475","DOIUrl":"https://doi.org/10.1109/ICCES.2006.320475","url":null,"abstract":"The problem of sub-carrier allocation in OFDMA systems has been the focus of recent research efforts. All papers to our knowledge consider the problem of allocating sub-carriers one frame ahead. In this paper, we propose an OFDMA scheme which utilizes future channel prediction to adaptively allocate sub-carriers to each user based on their predicted channel states several frames ahead. The results obtained show that this scheme guarantees the required rates in addition to a fair allocation of the available sub-carriers among users when compared to the traditional single frame case","PeriodicalId":261853,"journal":{"name":"2006 International Conference on Computer Engineering and Systems","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129925963","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: 0
GA tuning of Fuzzy Controller for MIMO system MIMO系统模糊控制器的遗传整定
2006 International Conference on Computer Engineering and Systems Pub Date : 2006-11-01 DOI: 10.1109/ICCES.2006.320480
A. Abdel Hadi, A. Elshafei
{"title":"GA tuning of Fuzzy Controller for MIMO system","authors":"A. Abdel Hadi, A. Elshafei","doi":"10.1109/ICCES.2006.320480","DOIUrl":"https://doi.org/10.1109/ICCES.2006.320480","url":null,"abstract":"Genetic algorithms have demonstrated considerable success in providing good solutions to many hard optimization problems. For such problems, exact algorithms that always find an optimal solution are only useful for small optimization problems, so heuristic algorithms such as the genetic algorithm must be used in practice. In this paper, we apply the genetic algorithm to the nonlinear MIMO problem of complex objective function. We compare the genetic algorithm with the exact optimization results. Our empirical results indicate that by using the genetic algorithm is able to find an optimal solution at speed orders of magnitude faster than exact algorithms. Simulation results of a two-link robot arm are reported with different objective functions to confirm the validity of our assumption.","PeriodicalId":261853,"journal":{"name":"2006 International Conference on Computer Engineering and Systems","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133527546","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: 0
Evolutionary Optimization of Neural Networks for Fire Recognition 火灾识别神经网络的进化优化
2006 International Conference on Computer Engineering and Systems Pub Date : 2006-11-01 DOI: 10.1109/ICCES.2006.320486
M. Kandil, S. Shahin, A. Atiya, M. Fayek
{"title":"Evolutionary Optimization of Neural Networks for Fire Recognition","authors":"M. Kandil, S. Shahin, A. Atiya, M. Fayek","doi":"10.1109/ICCES.2006.320486","DOIUrl":"https://doi.org/10.1109/ICCES.2006.320486","url":null,"abstract":"In this paper, the new hybrid algorithm is used as real time fire recognition algorithm in visual image sequences. For the purposes of real time fire pattern recognition tasks neural networks (NNs) are typically trained with respect of error function minimization by propagating a linear sum of errors. Recent studies in the fire vision recognition have confronted the problem of the inconstant and different shapes of fire which required improving generalization of the NNs. Experimental evidence is presented in this study demonstrating the general application potential of the framework by generating populations of ENN for recognition with a large number of fire shapes in different images, to show that our hybrid algorithm is capable of detecting real time fire vision by improving the generalization of NNs","PeriodicalId":261853,"journal":{"name":"2006 International Conference on Computer Engineering and Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131326977","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: 1
Discrete-Time Averaging of PWM DC-DC Converters with Feedback 带反馈的PWM DC-DC变换器的离散时间平均
2006 International Conference on Computer Engineering and Systems Pub Date : 2006-11-01 DOI: 10.1109/ICCES.2006.320423
M. Al-Numay
{"title":"Discrete-Time Averaging of PWM DC-DC Converters with Feedback","authors":"M. Al-Numay","doi":"10.1109/ICCES.2006.320423","DOIUrl":"https://doi.org/10.1109/ICCES.2006.320423","url":null,"abstract":"This paper extends the results of discrete-time averaging method presented before to include the effect of feedback loop in the PWM system. This model provides the exact one cycle average values of the output signal with the presence of feedback even at low switching frequency. A comparison of this model to other existing models is presented through a numerical example of boost converter. Simulation results confirm the better accuracy and speed of the proposed model","PeriodicalId":261853,"journal":{"name":"2006 International Conference on Computer Engineering and Systems","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131715656","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
Wavelet-Based Adaptive Embedded Fractal Image Coding 基于小波的自适应嵌入分形图像编码
2006 International Conference on Computer Engineering and Systems Pub Date : 2006-11-01 DOI: 10.1109/ICCES.2006.320448
A. Abdelwahab, H. Elmogazy
{"title":"Wavelet-Based Adaptive Embedded Fractal Image Coding","authors":"A. Abdelwahab, H. Elmogazy","doi":"10.1109/ICCES.2006.320448","DOIUrl":"https://doi.org/10.1109/ICCES.2006.320448","url":null,"abstract":"An embedded fractal coding scheme for low bit rate transmission of discrete wavelet transform coefficients is proposed in this paper. Using 3-level 2D discrete wavelet transform (2D-DWT) for image data compression, fractal encoding is employed for generating the fractal parameters of the DWT coefficients of the third level subimages (the coarser scale). This should decrease the encoding fractal processing time. The subimages of the third level and that of the subsequent levels (finer scales) are reconstructed from the transmitted fractal parameters of level three by exploiting the high correlations among the DWT coefficients in different scales which is called embedded fractal coding (EFC) scheme. For further reconstructed image quality improvement, an adaptive technique using vector quantization is used to transmit some DWT coefficients. This is called the adaptive embedded fractal coding/vector quantization (AEFC/VQ) scheme. Experimental results showed that the proposed scheme can provide, with low processing time, good image quality in terms of peak signal to noise ratio (PSNR) at low bit rate","PeriodicalId":261853,"journal":{"name":"2006 International Conference on Computer Engineering and Systems","volume":"258 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133172851","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: 1
Improving Fault Tolerance in Desktop Grids Based On Incremental Checkpointing 基于增量检查点的桌面网格容错性改进
2006 International Conference on Computer Engineering and Systems Pub Date : 2006-11-01 DOI: 10.1109/ICCES.2006.320479
A.E. El-Desoky, H. A. Ali, A. Azab
{"title":"Improving Fault Tolerance in Desktop Grids Based On Incremental Checkpointing","authors":"A.E. El-Desoky, H. A. Ali, A. Azab","doi":"10.1109/ICCES.2006.320479","DOIUrl":"https://doi.org/10.1109/ICCES.2006.320479","url":null,"abstract":"Fault tolerance is an important issue to guarantee reliable execution of tasks in computational desktop grid environment where execution failures are frequently expected. Periodic checkpointing of running tasks is one of the common strategies for achieving acceptable fault tolerance. A problem usually arises, that is, temporary stored data in a checkpoint file for some long running tasks might be too large in size to be reliably transmitted between nodes without consuming network bandwidth. Data loss may also occur when transmitting such large amount of data in a non-reliable communication environment (e.g. desktop grid). In this paper, a modified application level incremental checkpointing approach is proposed in which the size of transmitted checkpoint data can be reduced to about 3% of its original size with little overhead on computation time. The proposed approach also investigates a new mechanism for safely storing a checkpoint file with reliance on the availability of the submitting node only. A simulator have been built using the .Net framework 1.1 to test the validity of the proposed approach using an application code built on variable dimensions' matrix multiplication. Experimental results show that the proposed approach improved fault tolerance with minimizing computational overhead","PeriodicalId":261853,"journal":{"name":"2006 International Conference on Computer Engineering and Systems","volume":"223 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132751079","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: 13
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