2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop最新文献_第8页

Modeling Temperature Data of RLG's Scale Factor Using LS-SVM 基于LS-SVM的RLG尺度因子温度数据建模

2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop Pub Date : 2008-12-01 DOI: 10.1109/KAMW.2008.4810536

Xiao Jiahe, Qin Yongyuan, Long Rui

{"title":"Modeling Temperature Data of RLG's Scale Factor Using LS-SVM","authors":"Xiao Jiahe, Qin Yongyuan, Long Rui","doi":"10.1109/KAMW.2008.4810536","DOIUrl":"https://doi.org/10.1109/KAMW.2008.4810536","url":null,"abstract":"In this paper, a LS-SVM model based RLG's scale factor temperature data modeling method is studied. Using traditional least square linear model to modeling nonlinear ring laser gyro scale factor test data has its intrinsic shortcoming, and sometimes it is difficult to meet the application requirements. Recently, nonlinear function approximation based modeling methods such as the BP networks are introduced to modeling the temperature data. But in the BP networks will suffer the problem of overfitting and the existence of many local minima. To avoid these shortcomings the LS-SVM is used to modeling the scale factor temperature data. Base on the analysis of the test scale factor data, the scale factor test data is modeled as the function of the temperature and its increment, and LS-SVM model is employed to estimate the nonlinear function. The simulation results show that the LS-SVM model can approach scale factor data accurately, and its precision is much higher than the least square model. The mean squared deviation of LS-SVM model is smaller than 0.51times10-6(\"/pulse). Base on considerately designed test procedure and large numbers of experimental data, a practical temperature model can be established.","PeriodicalId":375613,"journal":{"name":"2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132297291","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

Simulation of Two-phase Flow Using Smoothed Particle Hydrodynamics 用光滑颗粒流体力学模拟两相流

2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop Pub Date : 2008-12-01 DOI: 10.1109/KAMW.2008.4810710

Jiao Peigang, Zhou Yiqi, Li Zirui, Chen Lei

引用次数: 3

Firearm Identification System for Australian Police Services 澳大利亚警察部门的枪支识别系统

2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop Pub Date : 2008-12-01 DOI: 10.1109/KAMW.2008.4810640

Dongguang Li

引用次数: 1

An Algorithm of Fast Generating Reversible Progressive Meshes 一种快速生成可逆渐进网格的算法

2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop Pub Date : 2008-12-01 DOI: 10.1109/KAMW.2008.4810459

Fan Tiesheng, Xu Weihong, Wang Qingsong, Dou Chunyi, Luo YunShan

引用次数: 0

Research on Materialized Views Technology in Data Warehouse 数据仓库中物化视图技术研究

2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop Pub Date : 2008-12-01 DOI: 10.1109/KAMW.2008.4810668

Lijuan Zhou, M. Xu, Qian Shi, Zhongxiao Hao

{"title":"Research on Materialized Views Technology in Data Warehouse","authors":"Lijuan Zhou, M. Xu, Qian Shi, Zhongxiao Hao","doi":"10.1109/KAMW.2008.4810668","DOIUrl":"https://doi.org/10.1109/KAMW.2008.4810668","url":null,"abstract":"With the needs of decision-support information of enterprise and the fast development of computer technologies data warehouse technology come out. The data warehouse is a repository of information collected from multiple, possibly heterogeneous, autonomous, distributed databases. The information stored at the data warehouse is in form of views referred to as materialized views. The design of data warehouse is one of the core research problems in studying and evolution of data warehouse. One of the most important decisions in design of data warehouse is the data warehouse selection. Selecting views to materialize impacts on the efficiency as well as the total cost of establishing and running a data warehouse. So, we develop algorithms to select a set of views to materialize in data warehouse in order to minimize the total view maintenance cost under the constraint of a given query response time. We call it query cost view selection problem (QC_VSP). In this paper, First, we propose query cost view selection problem model. Second, we give three algorithms for QC_VSP; we give view_node_matrix in order to solve it. Third, experiment simulation is adopted. The results show that our algorithm works better in practical cases. We implemented our algorithms and a performance study of the algorithms shows that the proposed algorithm delivers an optimal solution. Finally, we discuss the observed behavior of the algorithms. We also identify some important issues for future investigations.","PeriodicalId":375613,"journal":{"name":"2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131020658","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

Moving towards creating the new pattern from the graph creativity to the education of design 从图形创意走向设计教育的新模式创造

2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop Pub Date : 2008-12-01 DOI: 10.1109/KAMW.2008.4810516

L. Peng

引用次数: 0

Research on a Motivation Model of Library Tacit Knowledge Transfer and Its Utilization 图书馆隐性知识转移激励模型及其应用研究

2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop Pub Date : 2008-12-01 DOI: 10.1109/KAMW.2008.4810652

He Shaohua, Zhu Hongtao

引用次数: 0

The Personal Knowledge Management in Mobile Learning 移动学习中的个人知识管理

2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop Pub Date : 2008-12-01 DOI: 10.1109/KAMW.2008.4810693

Qiang Liu, Mingzhang Zuo, Xia Zhang

引用次数: 5

Application of Fuzzy Self-tuning PID Controller in Soccer Robot 模糊自整定PID控制器在足球机器人中的应用

2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop Pub Date : 2008-12-01 DOI: 10.1109/KAMW.2008.4810412

Yuzhi Wu, Haihua Wang

引用次数: 5

Approximation Algorithms for Data management in Geometric Network 几何网络中数据管理的近似算法

2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop Pub Date : 2008-12-01 DOI: 10.1109/KAMW.2008.4810629

Dongmei Xing

引用次数: 0