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Estimation of Car Demand in Iranian Market: Using Discrete Choice Model 伊朗市场汽车需求估计:使用离散选择模型
2010 International Conference on Intelligent Systems, Modelling and Simulation Pub Date : 2010-01-27 DOI: 10.1109/ISMS.2010.51
H. Saeedi, M. F. Ardakani, M. Shahbazi
{"title":"Estimation of Car Demand in Iranian Market: Using Discrete Choice Model","authors":"H. Saeedi, M. F. Ardakani, M. Shahbazi","doi":"10.1109/ISMS.2010.51","DOIUrl":"https://doi.org/10.1109/ISMS.2010.51","url":null,"abstract":"In this article, car demand in Iranian market has been estimated. At the first, Total demand function was estimated and The results show that car is a highly elastic commodity in Iran. Its price elasticity coefficient and income elasticity coefficient are 1.3 and 2.93, respectively. Furthermore socio-economical parameters affecting car ownership have been analyzed according to Iran household budget data using Discrete choice Models. This research shows how characteristics of household like residential location of household, gender, literacy, marital status and educational level of head of the household and fuel price variations change the probability of car ownership. Results show that Finally, Socio-Economic Parameters Affecting Household Ownership of Different Classes of Cars Have been Analyzed.","PeriodicalId":434315,"journal":{"name":"2010 International Conference on Intelligent Systems, Modelling and Simulation","volume":"96 2S 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122701906","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
An Approximate Actual Network Performance Evaluation Method 一种近似的实际网络性能评估方法
2010 International Conference on Intelligent Systems, Modelling and Simulation Pub Date : 2010-01-27 DOI: 10.1109/ISMS.2010.74
J. Lewoc, A. Izworski, Slawomir Skowronski, G. Dimirovski, Vesna M. Ojleska
{"title":"An Approximate Actual Network Performance Evaluation Method","authors":"J. Lewoc, A. Izworski, Slawomir Skowronski, G. Dimirovski, Vesna M. Ojleska","doi":"10.1109/ISMS.2010.74","DOIUrl":"https://doi.org/10.1109/ISMS.2010.74","url":null,"abstract":"Since early eighties, not too many happened in analytical methods of performance valuation for actual computer and communication networks. The methods of the classic queuing theory (the mean value analysis, the convolution method) adopt unrealistic assumptions. The stochastic queuing network methods are not adequate for investigation of actual networks. Therefore, the paper presents an approximate method based on many-year performance evaluation experience and some heuristics. The approach is based on the notion of the closed route within the computer network under investigation; the complete network being described as a collection of such closed routes. The method was successfully validated by simulation and measurements. Some more complex approximations, feasible due to development of the computing tools, are also proposed.","PeriodicalId":434315,"journal":{"name":"2010 International Conference on Intelligent Systems, Modelling and Simulation","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114348340","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: 12
Radio Channel Characterization for IEEE 802.11 IEEE 802.11无线信道特性
2010 International Conference on Intelligent Systems, Modelling and Simulation Pub Date : 2010-01-27 DOI: 10.1109/ISMS.2010.73
D. Karia, B. K. Lande, R. Daruwala
{"title":"Radio Channel Characterization for IEEE 802.11","authors":"D. Karia, B. K. Lande, R. Daruwala","doi":"10.1109/ISMS.2010.73","DOIUrl":"https://doi.org/10.1109/ISMS.2010.73","url":null,"abstract":"The performance of mobile ad hoc wireless networks has been primarily limited by the radio propagation channel. In the mobile radio environment, fading due to multipath delay spread impairs received signals. The aim of this paper is to propose a suitable mobile radio channel model based on a Tapped Delay Line (TDL) structure that not only examines the effect of various parameters on channel behavior, but also represent the environment in which the mobile ad hoc wireless networks (IEEE 802.11 b/g) operates. The performance of the time-varying nature of the radio channel is studied and simulated by plotting the signal constellations using QPSK modulation technique.","PeriodicalId":434315,"journal":{"name":"2010 International Conference on Intelligent Systems, Modelling and Simulation","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129168432","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
Attribute-Based Authorization for Grid Computing 基于属性的网格计算授权
2010 International Conference on Intelligent Systems, Modelling and Simulation Pub Date : 2010-01-27 DOI: 10.1109/ISMS.2010.24
H. Khider, T. Osman, N. Sherkat
{"title":"Attribute-Based Authorization for Grid Computing","authors":"H. Khider, T. Osman, N. Sherkat","doi":"10.1109/ISMS.2010.24","DOIUrl":"https://doi.org/10.1109/ISMS.2010.24","url":null,"abstract":"the development of adequate security solutions and in particular of authorization techniques for grid computing systems is a challenging task. Traditional security trends tried to overcome this problem by using a low-level access control policy which maps a user’s identity to a local account. This approach is not scalable and is hard to manage in a distributed environment. Current trends started adopting approaches that pass attributes for authorization instead of passing user’s credentials. The problem still hasn’t been solved completely primarily because it uses PKI (Public Key Infrastructure) user certificate for authorization, and the main problem with this approach is the inflexibility of the PKI infrastructure when it comes to open distributed systems (Grid). Additionally implementations of attribute-based authorization have largely adopted the XML based SAML (Security Assertion Markup Language) and XACML (eXtensible Access Control Markup Language) standards for authentication and authorization. The author investigates an approach that uses XACML for Authorizations and utilizes a proxy for the attribute authorityto allow for the distribution of attribute requests to numerous attribute authorities to whom the user is subscribed.","PeriodicalId":434315,"journal":{"name":"2010 International Conference on Intelligent Systems, Modelling and Simulation","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127866091","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: 7
The Development of an Advanced Autonomous Integrated Mission System for Uninhabited Air Systems to Meet UK Airspace Requirements 为满足英国空域需求的无人空中系统开发一种先进的自主集成任务系统
2010 International Conference on Intelligent Systems, Modelling and Simulation Pub Date : 2010-01-27 DOI: 10.1109/ISMS.2010.22
C. Patchett, D. Ansell
{"title":"The Development of an Advanced Autonomous Integrated Mission System for Uninhabited Air Systems to Meet UK Airspace Requirements","authors":"C. Patchett, D. Ansell","doi":"10.1109/ISMS.2010.22","DOIUrl":"https://doi.org/10.1109/ISMS.2010.22","url":null,"abstract":"The routine use of Uninhabited Air Systems (UAS) in non-segregated airspace presents many technological and regulatory challenges to the Aerospace Industry. This paper describes the development and key features of a new UAS avionic system designed to meet these challenges, the Advanced Autonomous Integrated Mission System (AAIMS). The paper gives an overview of the systems design process followed for AAIMS, its architectural design and its system components including autonomous decision making, sense and avoid, weather sensing and processing, forced landing and system health management.","PeriodicalId":434315,"journal":{"name":"2010 International Conference on Intelligent Systems, Modelling and Simulation","volume":"519 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134371870","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
Smart Distance Keeping: Modeling and Perspectives for Embedded Diagnosis 智能距离保持:嵌入式诊断的建模和观点
2010 International Conference on Intelligent Systems, Modelling and Simulation Pub Date : 2010-01-27 DOI: 10.1109/ISMS.2010.54
H. Shraim, Othman Nasri, P. Dague, O. Héron, M. Cartron
{"title":"Smart Distance Keeping: Modeling and Perspectives for Embedded Diagnosis","authors":"H. Shraim, Othman Nasri, P. Dague, O. Héron, M. Cartron","doi":"10.1109/ISMS.2010.54","DOIUrl":"https://doi.org/10.1109/ISMS.2010.54","url":null,"abstract":"This paper presents a detailed description of an advanced Adaptive Cruise Control (ACC) system implemented on a Renault-Volvo Trucks vehicle. One of the main differences between this new system, which is called the Smart Distance Keeping (SDK), and the classical ACC is the choice of the safe distance. This later is the distance between the vehicle (with the ACC or the SDK system) and the front obstacle (which may be a vehicle). It is supposed fixe in the case of the ACC, while variable in the case of the SDK. The variation of this distance (in the case of SDK) depends essentially on the relative velocity between the vehicle and the front obstacle. The main contribution of this work is on the SDK system architecture, the design of its environment model, and the proposition of a detection and isolation strategy for some of the possible faults that may be produced on the system.","PeriodicalId":434315,"journal":{"name":"2010 International Conference on Intelligent Systems, Modelling and Simulation","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131997635","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
Artificial Neural Network Model for Spectral Construction of a Linear Accelerator Megavoltage Photon Beam 线性加速器超高电压光子光束光谱构建的人工神经网络模型
2010 International Conference on Intelligent Systems, Modelling and Simulation Pub Date : 2010-01-27 DOI: 10.1109/ISMS.2010.27
Sabir Hussain
{"title":"Artificial Neural Network Model for Spectral Construction of a Linear Accelerator Megavoltage Photon Beam","authors":"Sabir Hussain","doi":"10.1109/ISMS.2010.27","DOIUrl":"https://doi.org/10.1109/ISMS.2010.27","url":null,"abstract":"In photon radiotherapy, one of the most critical parameters for the delivery of highly target-conformal dose to the target volume is the determination of the energy spectra incident on the surface of the target volume. This paper proposes an artificial neural network (ANN) model for the determination of megavoltage photon beams spectra. We have computed bremsstrahlung spectra of 4 to 25 MV beams for different medical linear accelerators. The ANN model is trained with thousands of data sets obtained from the Monte Carlo (MC) constructed spectra data of different energies. The computed spectra from the ANN model are verified by its comparison with published Monte Carlo spectra data and we have found an excellent agreement in the results. A major advantage of the ANN model is its ability of instantaneous data analysis after learning phase, enabling automated data analysis within short period for dose optimization with greater accuracy.","PeriodicalId":434315,"journal":{"name":"2010 International Conference on Intelligent Systems, Modelling and Simulation","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126637086","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
Cross Layer Scheduling Scheme for Dense Wireless Sensor Networks 密集无线传感器网络的跨层调度方案
2010 International Conference on Intelligent Systems, Modelling and Simulation Pub Date : 2010-01-27 DOI: 10.1109/ISMS.2010.68
N. Israr
{"title":"Cross Layer Scheduling Scheme for Dense Wireless Sensor Networks","authors":"N. Israr","doi":"10.1109/ISMS.2010.68","DOIUrl":"https://doi.org/10.1109/ISMS.2010.68","url":null,"abstract":"The classical sleep/wake up scheduling at application layer is believed to be one of the best power saving scheme for dense wireless sensor networks (WSNs). The scheme reduces redundant transmissions and as a result prolong WSNs life time. In this paper we evaluate the effect of density on inter cluster and intra cluster communication and propose a hybrid cross layer scheduling schemes. In the conventional scheduling schemes at the application layer, a nodes whose sensing area is covered by its neighbours goes to a sleep state. Whereas the proposed algorithm suggests that instead of putting the redundant nodes to sleep if they are used for some energy intensive task for example as a relay station for inter cluster communication. This will be more energy efficient than the conventional sleep/wakeup scheduling for WSNs. Performance studies indicate that the proposed communication strategy is more energy efficient than the conventional communication strategies which employ the sleep/wake up pattern at application layer","PeriodicalId":434315,"journal":{"name":"2010 International Conference on Intelligent Systems, Modelling and Simulation","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121947261","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
On the Use of Decision Tree for Posture Recognition 决策树在姿态识别中的应用研究
2010 International Conference on Intelligent Systems, Modelling and Simulation Pub Date : 2010-01-27 DOI: 10.1109/ISMS.2010.47
N. Tahir, A. Hussain, S. Samad, Hafizah Hussin
{"title":"On the Use of Decision Tree for Posture Recognition","authors":"N. Tahir, A. Hussain, S. Samad, Hafizah Hussin","doi":"10.1109/ISMS.2010.47","DOIUrl":"https://doi.org/10.1109/ISMS.2010.47","url":null,"abstract":"The aim of this study is to evaluate the effectiveness of decision tree as classifier for recognition of four main human postures (standing, sitting, bending and lying) since decision trees are well known for their success for prediction, recognition and classification task in data mining problems. Firstly, the eigenfeatures of these postures are optimized via Principal Component Analysis rules of thumb specifically the KG-rule, Cumulative Variance and the Scree Test. Next, these eigenfeatures are statistically analyzed prior to classification. In doing so, the most relevant eigenfeatures that we termed as eigenpostures can be ascertained. Further, we employed decision tree as classifier for posture recognition. Initial results of the experiments are encouraging which suggested that our method can efficiently be applied for posture classification using DT.","PeriodicalId":434315,"journal":{"name":"2010 International Conference on Intelligent Systems, Modelling and Simulation","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115390481","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: 6
Offloading Region Matching of Data Distribution Management with CUDA 基于CUDA的数据分发管理的卸载区域匹配
2010 International Conference on Intelligent Systems, Modelling and Simulation Pub Date : 2010-01-27 DOI: 10.1109/ISMS.2010.64
Shih-Hsiang Lo, Yeh-Ching Chung, Fang-Ping Pai
{"title":"Offloading Region Matching of Data Distribution Management with CUDA","authors":"Shih-Hsiang Lo, Yeh-Ching Chung, Fang-Ping Pai","doi":"10.1109/ISMS.2010.64","DOIUrl":"https://doi.org/10.1109/ISMS.2010.64","url":null,"abstract":"Data distribution management (DDM) aims to reduce the transmission of irrelevant data between High Level Architecture (HLA) compliant simulators by taking their interesting regions into account (i.e. region matching). In a large-scale simulation, computation intensive region matching would have a direct impact on the simulation performance. To deal with the high computation cost of region matching, the whole process of region matching is offloaded to graphical processing units (GPUs) based on Computer Unified Device Architecture (CUDA). Two approaches are proposed to perform region matching in parallel. Several metrics, including different numbers of regions, different sizes of regions and different distributions of regions, are used in the experimental tests. The experimental results indicate that the performance of region matching on a GPU can be improved more than one or two orders of magnitude in comparison with that on a CPU.","PeriodicalId":434315,"journal":{"name":"2010 International Conference on Intelligent Systems, Modelling and Simulation","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122933296","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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