2011 UkSim 13th International Conference on Computer Modelling and Simulation最新文献

A Genetic Algorithm for Query Optimization in Database Grid by Dynamic Cost Estimation 基于动态代价估计的数据库网格查询优化遗传算法

2011 UkSim 13th International Conference on Computer Modelling and Simulation Pub Date : 2011-03-30 DOI: 10.1109/UKSIM.2011.25

Peyman Arebi, Navid Gonbadipoor

{"title":"A Genetic Algorithm for Query Optimization in Database Grid by Dynamic Cost Estimation","authors":"Peyman Arebi, Navid Gonbadipoor","doi":"10.1109/UKSIM.2011.25","DOIUrl":"https://doi.org/10.1109/UKSIM.2011.25","url":null,"abstract":"increasing data volume in the database of organizations especially those that are multicluster and geographically extensive cause a lot of problems in data storage, retrieve and transmition. In addition, data integration related to database existed in different geographical positions is too risky with the respect of security and velocity of transaction executing and generally posses some disadvantages which can be solved by using the grid database and leads to more efficient function. Therefore, with internet extension among the organizations and institutes and also accordance of grid architecture to it, development of database in grid environments is inevitable. In order to establish a structure for data storing in the width of a grid environment in distributed and heterogonous from tries to storage and distribute data in a wide geographical region. Because of extension and high volume of data, transaction processing in such an environment is complexity and time-consuming. It is obvious that if non-optimal queries are used, transaction efficiency in this database will considerably be decreased. But if appropriate optimal algorithms are used, this efficiency will be so much increased. There are a lot of algorithms suggested for optimization of queries. However, due to difference of grid environments, different optimal algorithms are required. In this study presented algorithm is according to the structure of grid measurement and through a novel solving performs a good function in high data volume grid base systems.","PeriodicalId":161995,"journal":{"name":"2011 UkSim 13th International Conference on Computer Modelling and Simulation","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121829963","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

Intelligent Trend Indices in Detecting Changes of Operating Conditions 智能趋势指数在工况变化检测中的应用

2011 UkSim 13th International Conference on Computer Modelling and Simulation Pub Date : 2011-03-30 DOI: 10.1109/UKSIM.2011.39

E. Juuso

引用次数: 18

Applications of MEMS in Robotics and BioMEMS MEMS在机器人和生物机械领域的应用

2011 UkSim 13th International Conference on Computer Modelling and Simulation Pub Date : 2011-03-30 DOI: 10.1109/UKSIM.2011.106

Manisha Khorgade, A. Gaidhane

引用次数: 12

Managing Contextual Information in Semantically-Driven Temporal Information Systems 在语义驱动的时态信息系统中管理上下文信息

2011 UkSim 13th International Conference on Computer Modelling and Simulation Pub Date : 2011-03-30 DOI: 10.1109/UKSIM.2011.92

Sakirulai O. Isiaq, T. Osman, E. Peytchev

引用次数: 1

Performance Design and Simulation Analysis of Vertical Double Gate MOSFET (VDGM) 垂直双栅MOSFET (VDGM)性能设计与仿真分析

2011 UkSim 13th International Conference on Computer Modelling and Simulation Pub Date : 2011-03-30 DOI: 10.1109/UKSIM.2011.105

I. Saad, N. Bolong, P. Divya, K. Teo

引用次数: 10

A Novel Home Energy Management System Architecture 一种新型的家庭能源管理系统架构

2011 UkSim 13th International Conference on Computer Modelling and Simulation Pub Date : 2011-03-30 DOI: 10.1109/UKSIM.2011.80

Ana Rosselló-Busquet, José Soler, L. Dittmann

引用次数: 25

Simulation of a Railway Control System: Dynamic Analysis of Scoped Memory Consumption 铁路控制系统仿真:作用域内存消耗的动态分析

2011 UkSim 13th International Conference on Computer Modelling and Simulation Pub Date : 2011-03-30 DOI: 10.1109/UKSIM.2011.61

H. Hamza, S. Counsell

引用次数: 0

An Industrial Visual Surveillance Framework Based on a Pre-Configured Behavior Repertoire: A Practical Approach 基于预配置行为库的工业视觉监控框架:一种实用方法

2011 UkSim 13th International Conference on Computer Modelling and Simulation Pub Date : 2011-03-30 DOI: 10.1109/UKSIM.2011.42

Vasilios Anagnostopoulos, Emmanuel Sardis, T. Varvarigou

引用次数: 1

Managing Industrial Simulator Visual Databases Using Geographic Information Systems 使用地理信息系统管理工业模拟器可视化数据库

2011 UkSim 13th International Conference on Computer Modelling and Simulation Pub Date : 2011-03-30 DOI: 10.1109/UKSIM.2011.27

M. R. Villagrá, A. Carretero, J. Maroto, L. M. Muneta

{"title":"Managing Industrial Simulator Visual Databases Using Geographic Information Systems","authors":"M. R. Villagrá, A. Carretero, J. Maroto, L. M. Muneta","doi":"10.1109/UKSIM.2011.27","DOIUrl":"https://doi.org/10.1109/UKSIM.2011.27","url":null,"abstract":"Geographic Information Systems are developed to handle enormous volumes of data and are equipped with numerous functionalities intended to capture, store, edit, organise, process and analyse or represent the geographically referenced information. On the other hand, industrial simulators for driver training are real-time applications that require a virtual environment, either geospecific, geogeneric ora combination of the two, over which the simulation programs will be run. In the final instance, this environment constitutes a geographic location with its specific characteristics of geometry, appearance, functionality, topography, etc. The set of elements that enables the virtual simulation environment to be created and in which the simulator user can move, is usually called the Visual Database (VDB). The main idea behind the work being developed approaches a topic that is of major interest in the field of industrial training simulators, which is the problem of analysing, structuring and describing the virtual environments to be used in large driving simulators. This paper sets out a methodology that uses the capabilities and benefits of Geographic Information Systems for organising, optimising and managing the visual Database of the simulator and for generally enhancing the quality and performance of the simulator.","PeriodicalId":161995,"journal":{"name":"2011 UkSim 13th International Conference on Computer Modelling and Simulation","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125902642","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

Impacts of Buffering of Voice Calls in Integrated Voice and Data Services 语音数据综合业务中语音呼叫缓冲的影响

2011 UkSim 13th International Conference on Computer Modelling and Simulation Pub Date : 2011-03-30 DOI: 10.1109/UKSIM.2011.103

E. Gemikonakli, O. Gemikonakli, E. Ever, G. Mapp

{"title":"Impacts of Buffering of Voice Calls in Integrated Voice and Data Services","authors":"E. Gemikonakli, O. Gemikonakli, E. Ever, G. Mapp","doi":"10.1109/UKSIM.2011.103","DOIUrl":"https://doi.org/10.1109/UKSIM.2011.103","url":null,"abstract":"In this study, we aim to analyse the relationship between various characteristics of a communication system with data and voice call requests. Queuing theory and Markov chain analysis are effectively used for this purpose. Such a study is useful for understanding how the proposed mathematical models behave which represents a system with integrated voice and data calls in homogenous wireless networks. We also propose to optimise the system characteristics in an attempt to provide better Quality of Service (QoS) for systems with integrated voice and data calls. The proposed models have two dimensions, one for voice calls and one for data calls. A channel is assigned for two input traffic call, namely, voice and data calls. The incoming voice and data calls are queued when the channel is busy. Since voice calls are delay-sensitive, priority is given to voice calls. Also, since there is only one channel, data calls are only serviced if there are no voice calls in the system. For such systems, it is important to analyse the impact of buffering the voice calls as well as data calls for various mean rates of call requests, and mean service times. The analytical models presented are generic which is applicable for various systems with similar characteristics. Numerical results are also provided. The results show that the proposed models can be used for optimisation of the performance of a given network.","PeriodicalId":161995,"journal":{"name":"2011 UkSim 13th International Conference on Computer Modelling and Simulation","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126111272","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