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2008 Second Asia International Conference on Modelling & Simulation (AMS)最新文献

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A Fuzzy Particle Swarm Approach to Multiobjective Quadratic Assignment Problems 多目标二次分配问题的模糊粒子群算法
2008 Second Asia International Conference on Modelling & Simulation (AMS) Pub Date : 2008-05-13 DOI: 10.1109/AMS.2008.169
Mingyan Zhao, A. Abraham, C. Grosan, Hongbo Liu
{"title":"A Fuzzy Particle Swarm Approach to Multiobjective Quadratic Assignment Problems","authors":"Mingyan Zhao, A. Abraham, C. Grosan, Hongbo Liu","doi":"10.1109/AMS.2008.169","DOIUrl":"https://doi.org/10.1109/AMS.2008.169","url":null,"abstract":"The multiobjective Quadratic Assignment Problem (mQAP) is considered as one of the hardest optimization problems but with many real-world applications. Since it may not be possible to simply weight the importance of each flow for the mQAP, it is best to use Pareto optimization to obtain the Pareto front or an approximation of it. Although Particle Swarm Optimization (PSO) algorithm has exhibited good performance across a wide range of application problems, research on mQAP has not much been investigated. This paper introduces a fuzzy particle swarm algorithm to handle the Multiobjective Quadratic Assignment Problem (mQAP). In the fuzzy scheme, the representations of the position and velocity of the particles in the conventional PSO is extended from the real vectors to fuzzy matrices. A new mapping is introduced between the particles in the swarm and the problem space in an efficient way. We evaluated the performance of the proposed approach. Empirical results illustrate that the approach can be applied for solving mQAP's very effectively.","PeriodicalId":122964,"journal":{"name":"2008 Second Asia International Conference on Modelling & Simulation (AMS)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126208736","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: 15
Implementing ITIL-Based CMDB in the Organizations to Minimize or Remove Service Quality Gaps 在组织中实施基于itil的CMDB，以减少或消除服务质量差距
2008 Second Asia International Conference on Modelling & Simulation (AMS) Pub Date : 2008-05-13 DOI: 10.1109/AMS.2008.144
Mohammad Sharifi, Masarat Ayat, S. Sahibuddin
{"title":"Implementing ITIL-Based CMDB in the Organizations to Minimize or Remove Service Quality Gaps","authors":"Mohammad Sharifi, Masarat Ayat, S. Sahibuddin","doi":"10.1109/AMS.2008.144","DOIUrl":"https://doi.org/10.1109/AMS.2008.144","url":null,"abstract":"\"Gap\" is a fundamental problem in every organization and there are some models and methods to \"identify\" and remove or minimize those gaps in the organizations . This paper tries to use an ITIL based solution to remove or abate those \"key discrepancies\" in the organizations based on using Model of Service Quality Gaps(S. Q. G) as a most known model to identify gaps in the organizations in perspective of service quality. In this study the following questions were answered: Which gap or gaps are in the organizations based on S.Q.G model? ; Which method is better to make such ITIL- based repository? ; And how CMDB can be used within S. Q. G model in order to remove or abate known gaps?","PeriodicalId":122964,"journal":{"name":"2008 Second Asia International Conference on Modelling & Simulation (AMS)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126564410","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: 9
Modeling and Characterization of Schottky Diode on AlGaAs/GaAs HEMT Structure for Rectenna Device 整流天线器件用AlGaAs/GaAs HEMT结构肖特基二极管的建模与表征
2008 Second Asia International Conference on Modelling & Simulation (AMS) Pub Date : 2008-05-13 DOI: 10.1109/AMS.2008.187
N. Parimon, Siti Suhaila Bte Mohd Yusof, A. M. Hashim
{"title":"Modeling and Characterization of Schottky Diode on AlGaAs/GaAs HEMT Structure for Rectenna Device","authors":"N. Parimon, Siti Suhaila Bte Mohd Yusof, A. M. Hashim","doi":"10.1109/AMS.2008.187","DOIUrl":"https://doi.org/10.1109/AMS.2008.187","url":null,"abstract":"The modeling and characterization of Schottky diode on AlGaAs/GaAs HEMT structure for rectenna device is presented. The rectenna device can be used as a wireless power supply where it can capture microwave power and convert to the dc power to generate the others devices or circuits on a chip. Design and simulation of Schottky diode on AlGaAs/GaAs HEMT structure was carried out. From the simulated results, it was found that the operating frequency of the Schottky diode is tunable based on the length of coplanar waveguide.","PeriodicalId":122964,"journal":{"name":"2008 Second Asia International Conference on Modelling & Simulation (AMS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130725630","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
Developing a New Petri Net Tool for Simulation of Discrete Event Systems 一种新的离散事件系统仿真Petri网工具的开发
2008 Second Asia International Conference on Modelling & Simulation (AMS) Pub Date : 2008-05-13 DOI: 10.1109/AMS.2008.13
R. Davidrajuh
{"title":"Developing a New Petri Net Tool for Simulation of Discrete Event Systems","authors":"R. Davidrajuh","doi":"10.1109/AMS.2008.13","DOIUrl":"https://doi.org/10.1109/AMS.2008.13","url":null,"abstract":"This paper talks about developing a new Petri net tool for modeling and simulation of discrete event systems. Firstly, this paper presents a short survey on the tools for modeling and simulation of discrete event systems. Secondly, the architecture of the new tool called general-purpose Petri net simulator (GPenSIM) is given; GPenSIM is designed to achieve (1) flexibility, as it is based industry standard platform, (2) extensible, as it can be extended by user programmed functions, and can access mathematical functions & libraries, and (3) programming language and operating systems neutral, as the models can be defined in XML based Petri net markup language (PNML).","PeriodicalId":122964,"journal":{"name":"2008 Second Asia International Conference on Modelling & Simulation (AMS)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132999810","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: 28
Prediction of Induced Current in Externally Excited Dipole Antenna Using Fuzzy Inference 基于模糊推理的外激偶极子天线感应电流预测
2008 Second Asia International Conference on Modelling & Simulation (AMS) Pub Date : 2008-05-13 DOI: 10.1109/AMS.2008.66
S. R. Ostadzadeh, M. Soleimani, M. Tayarani
{"title":"Prediction of Induced Current in Externally Excited Dipole Antenna Using Fuzzy Inference","authors":"S. R. Ostadzadeh, M. Soleimani, M. Tayarani","doi":"10.1109/AMS.2008.66","DOIUrl":"https://doi.org/10.1109/AMS.2008.66","url":null,"abstract":"In this paper, our previously introduced fuzzy modeling method is used to model the induced current in the externally excited dipole antenna. In our model, behavior of the problem is saved as a set of unchanged membership functions and the knowledge of the incident angle is extracted as very simple curves of starting parameters. Then the induced current of the externally excited dipole antenna for any incident angle can be predicted very easily by applying the starting parameters calculated from the achieved simple curves to fuzzy system. Comparing fuzzy model results with the method of moments (MoM) shows very good agreement while execution time is surprisingly short even for wide bandwidth.","PeriodicalId":122964,"journal":{"name":"2008 Second Asia International Conference on Modelling & Simulation (AMS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133530738","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
Managing the Learning Dynamics within the Projects Based Organization A Novel Approach through Modelling and Simulation 基于项目组织的学习动态管理:一种通过建模和仿真的新方法
2008 Second Asia International Conference on Modelling & Simulation (AMS) Pub Date : 2008-05-13 DOI: 10.1109/AMS.2008.106
L. L. Rodrigues, N. Dharmaraj, B. Gopalkrishna, R. ShrinivasaRaoB.
{"title":"Managing the Learning Dynamics within the Projects Based Organization A Novel Approach through Modelling and Simulation","authors":"L. L. Rodrigues, N. Dharmaraj, B. Gopalkrishna, R. ShrinivasaRaoB.","doi":"10.1109/AMS.2008.106","DOIUrl":"https://doi.org/10.1109/AMS.2008.106","url":null,"abstract":"Organizational Learning and Development (OLD) is the strategic competitiveness weapon for sustainability. A lot of research has been carried out to study both the Endogenous and Exogenous factors, which influence the learning within the project based organizations. A tool to study the dynamics of learning within the projects would help the managers to a great deal for a better and effective OLD. Therefore, this Paper is on building a System Dynamics (SD) tool to depict the dynamics of Learning and Development in Service Projects. The Research was carried out at a Ship building and Repairing Company located in Middle East. The Project Learning and Development Dynamic Model (PLDDM) has been developed to analyze the Learning Dynamics. Dynamics of learning within the project-based organizations indicate that there is a need to minimize the 'competence gain training time' to the least value possible, and to develop the ability to quantify the 'degree of change', so as to manage change and competency towards strategic competitiveness.","PeriodicalId":122964,"journal":{"name":"2008 Second Asia International Conference on Modelling & Simulation (AMS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133552807","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
Performance Analysis of DSR & Extended DSR Protocols DSR及扩展DSR协议的性能分析
2008 Second Asia International Conference on Modelling & Simulation (AMS) Pub Date : 2008-05-13 DOI: 10.1109/AMS.2008.72
Shakeel Ahmad, I. Awan, Athar Waqqas, B. Ahmad
{"title":"Performance Analysis of DSR & Extended DSR Protocols","authors":"Shakeel Ahmad, I. Awan, Athar Waqqas, B. Ahmad","doi":"10.1109/AMS.2008.72","DOIUrl":"https://doi.org/10.1109/AMS.2008.72","url":null,"abstract":"Ad hoc network is group of wireless nodes to establish a network without any fixed infrastructure or centralized supervision/management. In such a network, topology changes dynamically and due to limitations of bandwidth, transmission range and power routing becomes an important issue. A lot of work has been done infield of routing in ad-hoc network since 1990. Dynamic Source Routing protocol (DSR) provides simple and efficient routing for multihop ad-hoc network of mobile nodes. This paper presents a simulation based performance analysis and comparison between traditional DSR and extended DSR. It utilises a specially designed framework which builds on the Global Mobile Information System Simulator (GloMoSim). Some optimizations of DSR have already been implemented in GloMoSim. Several different simulation results show that performance got better by traditional (already implemented) DSR.","PeriodicalId":122964,"journal":{"name":"2008 Second Asia International Conference on Modelling & Simulation (AMS)","volume":" 47","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131977425","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: 41
An Efficiency Security Model of Routing Protocol in Wireless Sensor Networks 无线传感器网络中路由协议的高效安全模型
2008 Second Asia International Conference on Modelling & Simulation (AMS) Pub Date : 2008-05-13 DOI: 10.1109/AMS.2008.41
Jing Chen, Huanguo Zhang, Junhui Hu
{"title":"An Efficiency Security Model of Routing Protocol in Wireless Sensor Networks","authors":"Jing Chen, Huanguo Zhang, Junhui Hu","doi":"10.1109/AMS.2008.41","DOIUrl":"https://doi.org/10.1109/AMS.2008.41","url":null,"abstract":"Routing security is one of the most important considerations in Wireless Sensor Networks (WSNs). Currently, more and more people pay attention to this issue. But most of the secure protocols must use public key and symmetric cryptographies which induce heavy load to nodes in the whole routing stage. In this paper, we propose an Efficiency Security Model of Routing (ESMR). In routing stage, ESMR only uses public key cryptography when new nodes enter the wireless sensor network and does not use symmetric cryptography at all. Through the security analyzing, we find our cryptography method only can resist the outside attackers, but it is helpless to inside attackers. Therefore, reputation mechanism is proposed against inside attackers in ESMR. The simulation result shows that the performance of ESMR is not as good as LEACH (Low-Energy Adaptive Clustering Hierarchy routing protocol) in no attacker environment, but it becomes better and better with the number of attackers increasing.","PeriodicalId":122964,"journal":{"name":"2008 Second Asia International Conference on Modelling & Simulation (AMS)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130125233","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: 11
Parallelization of Low-Level Computer Vision Algorithms on Clusters 基于聚类的低层次计算机视觉算法并行化
2008 Second Asia International Conference on Modelling & Simulation (AMS) Pub Date : 2008-05-13 DOI: 10.1109/AMS.2008.59
S. Kadam
{"title":"Parallelization of Low-Level Computer Vision Algorithms on Clusters","authors":"S. Kadam","doi":"10.1109/AMS.2008.59","DOIUrl":"https://doi.org/10.1109/AMS.2008.59","url":null,"abstract":"In this paper we present parallel implementations of some representative low level vision algorithms on a cluster of workstations. These include convolution operation and the image restoration algorithm using Markov random field models. The convolution operation has been parallelized using the Farmer-Worker paradigm, while the image restoration algorithm has been parallelized through the Master-Worker pattern. Parallel implementations of both these algorithms have shown promising results, where the observed speedups are reasonably close to the ideal speedups. The parallel convolution operation has shown good scalability with respect to the problem size and number of processors used in parallelization. The paper elaborates on different parallelization results of the convolution operation observed after varying the image size, mask size and processor load on individual workstations. The image restoration algorithm is communication intensive. However, as the computing time between successive communications at each worker process is relatively high, the actual speedups observed are very close to the ideal speedups in this algorithm.","PeriodicalId":122964,"journal":{"name":"2008 Second Asia International Conference on Modelling & Simulation (AMS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130102863","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: 4
Simulation-Based Approaches Towards Congestion Problems 基于仿真的拥堵问题研究方法
2008 Second Asia International Conference on Modelling & Simulation (AMS) Pub Date : 2008-05-13 DOI: 10.1109/AMS.2008.192
Teruaki Ito
{"title":"Simulation-Based Approaches Towards Congestion Problems","authors":"Teruaki Ito","doi":"10.1109/AMS.2008.192","DOIUrl":"https://doi.org/10.1109/AMS.2008.192","url":null,"abstract":"A simulation-based approach provides a hint to study a solution to various problems. To show the feasibility of this approach in our research, this paper focuses on the congestion problems which can be found in various fields, including service counters at peak times, cafeteria at lunch times, road traffics in rush hours, and logistics control in a tight schedule. Ticket counter simulation was studied and implemented as a Web-based simulation program. Human crowds control simulation and traffic simulation model were implemented with a general simulator, and evaluation on these models were studied to propose a solution to the congestion problems. Logistics control simulation was studied using an agent-based framework. Reviewing all of these application examples, this paper shows how the simulation-based approaches work towards congestion problems.","PeriodicalId":122964,"journal":{"name":"2008 Second Asia International Conference on Modelling & Simulation (AMS)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114904737","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
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