Pub Date : 2010-12-06DOI: 10.1109/DBTA.2010.5659048
Bo Yang
In this paper, Petrov-Galerkin methods are employed for numerical solutions to hyperbolic partial differential equations, which are important mathematical models with many applications in engineering, such as wave transmission, petroleum reservoir. By virtue of superclose analysis and an interpolation postprocessing technique, the global superconvergence is obtained, which is new even for elliptic partial differential equations.
{"title":"Global Superconvergence Estimates of Petrov-Galerkin Methods for Hyperbolic Equations","authors":"Bo Yang","doi":"10.1109/DBTA.2010.5659048","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659048","url":null,"abstract":"In this paper, Petrov-Galerkin methods are employed for numerical solutions to hyperbolic partial differential equations, which are important mathematical models with many applications in engineering, such as wave transmission, petroleum reservoir. By virtue of superclose analysis and an interpolation postprocessing technique, the global superconvergence is obtained, which is new even for elliptic partial differential equations.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132149520","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}
Pub Date : 2010-12-06DOI: 10.1109/DBTA.2010.5658973
Qing-song Lin, Yu-fei Yao, Jun-xiao Wang
It is difficult for the control system to get expected effect because of factors such as time-varying and non-linear. Considering the fact, a new algorithm is put forward, in which parameters of the PID control parameters are optimized by BP and RBF nets. By using MATLAB as the simulation tool, this new PID auto-tuning algorithm is simulated and researched. The simulation results show that this algorithm has enhanced response speed and robustness.
{"title":"Simulation and Application of Neural Network PID Auto-Tuning Controller in Servo-System","authors":"Qing-song Lin, Yu-fei Yao, Jun-xiao Wang","doi":"10.1109/DBTA.2010.5658973","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5658973","url":null,"abstract":"It is difficult for the control system to get expected effect because of factors such as time-varying and non-linear. Considering the fact, a new algorithm is put forward, in which parameters of the PID control parameters are optimized by BP and RBF nets. By using MATLAB as the simulation tool, this new PID auto-tuning algorithm is simulated and researched. The simulation results show that this algorithm has enhanced response speed and robustness.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132340610","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}
Pub Date : 2010-12-06DOI: 10.1109/DBTA.2010.5659062
Yan Shao, D. Yuan, Shui Wang
On QoS of live broadcast, proposes an congestion control strategy based on multicast transmission for terminals, i.e. the sender adopts RTP/RTCP adaptive control strategy, and variable increase and decrease method is used to adjust sending rate, while the receiver sets the buffer to adjust the data to play order of playback and to maintain the matching rate and effective bandwidth at the same time. Experiments show that with this strategy the image quality did not change significantly before and after transmission, jamming in playback is rare, and the screen jitter problem caused by network congestion and packet loss were solved satisfactorily.
{"title":"Research on QoS of Live Broadcast in Multicast Transmission","authors":"Yan Shao, D. Yuan, Shui Wang","doi":"10.1109/DBTA.2010.5659062","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659062","url":null,"abstract":"On QoS of live broadcast, proposes an congestion control strategy based on multicast transmission for terminals, i.e. the sender adopts RTP/RTCP adaptive control strategy, and variable increase and decrease method is used to adjust sending rate, while the receiver sets the buffer to adjust the data to play order of playback and to maintain the matching rate and effective bandwidth at the same time. Experiments show that with this strategy the image quality did not change significantly before and after transmission, jamming in playback is rare, and the screen jitter problem caused by network congestion and packet loss were solved satisfactorily.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132509505","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}
Pub Date : 2010-12-06DOI: 10.1109/DBTA.2010.5658925
Yong-jiang Li, Chang-li Li, Jian-hua Ge, Z. Sun
The Twin Fibonacci sequences are first defined and their linear expressions are given in this paper.The sequence{U_n} which is constituted by the matrix eigenvalues is defined and a discussion is given to its properties,including some exact division properties of the sequence{U_n} taken modulo m,and the theorem on the least period for module sequence{u_n(p^r)} is shown. Moreover,the relationship theorem between the module sequence of the sequence{U_n} about m and that for the Twin Fibonacci sequence is given in the paper,providing necessary mathematical support for further studying the properties of the Twin Fibonacci sequence.
{"title":"A New Like Fibonacci Sequence and Its Properties","authors":"Yong-jiang Li, Chang-li Li, Jian-hua Ge, Z. Sun","doi":"10.1109/DBTA.2010.5658925","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5658925","url":null,"abstract":"The Twin Fibonacci sequences are first defined and their linear expressions are given in this paper.The sequence{U_n} which is constituted by the matrix eigenvalues is defined and a discussion is given to its properties,including some exact division properties of the sequence{U_n} taken modulo m,and the theorem on the least period for module sequence{u_n(p^r)} is shown. Moreover,the relationship theorem between the module sequence of the sequence{U_n} about m and that for the Twin Fibonacci sequence is given in the paper,providing necessary mathematical support for further studying the properties of the Twin Fibonacci sequence.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114466360","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}
Pub Date : 2010-12-06DOI: 10.1109/DBTA.2010.5659082
Cheng Liu, Yajie Wang, Mowu Lu, Xiaoyan Wang
Presents and implements a kind of webpage styled PowerPoint courseware quiz for teachers' computer language courses. Not only powerful data access, the quiz page also has friendly and interactive interface which is manipulated by webpage scripts languages. This courseware quiz is developed for single user, but also should be for local network if slightly modified. All the key functionalities are implemented through PowerPoint VBA.
{"title":"A Kind of Webpage Styled PowerPoint Courseware Quiz Developed by VBA for Computer Courses","authors":"Cheng Liu, Yajie Wang, Mowu Lu, Xiaoyan Wang","doi":"10.1109/DBTA.2010.5659082","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659082","url":null,"abstract":"Presents and implements a kind of webpage styled PowerPoint courseware quiz for teachers' computer language courses. Not only powerful data access, the quiz page also has friendly and interactive interface which is manipulated by webpage scripts languages. This courseware quiz is developed for single user, but also should be for local network if slightly modified. All the key functionalities are implemented through PowerPoint VBA.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127458547","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}
Pub Date : 2010-12-06DOI: 10.1109/DBTA.2010.5659090
Qiang Wang, Lei Xi, Hui Zhang, Yanna Ren, Hua Yu, Xinming Ma
Wheat organs database provides background data support and data validation in various studies of wheat growth virtual visualization. This paper has discussed data modeling method of wheat organ configuration,on this foundation we have designed and realized the wheat organ configuration data management system. Through organ configuration data structure design, wheat organ library model is built;through wheat organ data Initialization in the data management subsystem, the wheat organ database structure is established, wheat organ data is input in the data Input subsystem; and the data query and analysis subsystem provides the foundation and support for the related wheat experiments.
{"title":"Research of Wheat Organ Configuration Data Management System","authors":"Qiang Wang, Lei Xi, Hui Zhang, Yanna Ren, Hua Yu, Xinming Ma","doi":"10.1109/DBTA.2010.5659090","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659090","url":null,"abstract":"Wheat organs database provides background data support and data validation in various studies of wheat growth virtual visualization. This paper has discussed data modeling method of wheat organ configuration,on this foundation we have designed and realized the wheat organ configuration data management system. Through organ configuration data structure design, wheat organ library model is built;through wheat organ data Initialization in the data management subsystem, the wheat organ database structure is established, wheat organ data is input in the data Input subsystem; and the data query and analysis subsystem provides the foundation and support for the related wheat experiments.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"1368 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127761911","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}
Pub Date : 2010-12-06DOI: 10.1109/DBTA.2010.5658985
Bo Meng, Mao Liu, Yan Hua Liufu, Wei Wang
In traditional risk analysis approaches, emphasis is put on quantitative analysis of accident probability and consequences but no effective multiple analysis results are obtained with risk perception of the public taken into consideration. Usually, analysis results used by the governmental organizations for land planning in risk areas are the results base on the experts' quantitative analysis. The results contain many indexes that can not be accurately quantified. This paper presents a pragmatic approach for balancing quantified data and non-quantified data in land planning for risk areas. Theoretical framework of the approach incorporates quantitative analysis method, classification analysis approach for risk perception of the public, and spatial multi-criteria analysis structure system. This approach is eventually used for case analysis in the planning for land along the banks of the Huai River in Huainan city in the middle reaches of the Huai River in Anhui Province, China. This approach integrates risk perception of the public and its application on the basis of spatial multi-criteria analysis. In this paper, risk perception will be used as an important reference index of multi-criteria analysis to analyze the correlation between risks and benefits. Consequently, more effective land use planning would be provided with the index of risk perception of the public taken into consideration.
{"title":"Research on Land-Use Type of Huainan City Based on Flood Risk Perception and Spatial Multi-Criteria Analysis","authors":"Bo Meng, Mao Liu, Yan Hua Liufu, Wei Wang","doi":"10.1109/DBTA.2010.5658985","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5658985","url":null,"abstract":"In traditional risk analysis approaches, emphasis is put on quantitative analysis of accident probability and consequences but no effective multiple analysis results are obtained with risk perception of the public taken into consideration. Usually, analysis results used by the governmental organizations for land planning in risk areas are the results base on the experts' quantitative analysis. The results contain many indexes that can not be accurately quantified. This paper presents a pragmatic approach for balancing quantified data and non-quantified data in land planning for risk areas. Theoretical framework of the approach incorporates quantitative analysis method, classification analysis approach for risk perception of the public, and spatial multi-criteria analysis structure system. This approach is eventually used for case analysis in the planning for land along the banks of the Huai River in Huainan city in the middle reaches of the Huai River in Anhui Province, China. This approach integrates risk perception of the public and its application on the basis of spatial multi-criteria analysis. In this paper, risk perception will be used as an important reference index of multi-criteria analysis to analyze the correlation between risks and benefits. Consequently, more effective land use planning would be provided with the index of risk perception of the public taken into consideration.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128032987","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}
Pub Date : 2010-12-06DOI: 10.1109/DBTA.2010.5659017
A. Lu, Jianping Li, L. Yang
Network Security Situational Awareness(NSSA) has been a hot research in the network security domain.The amount of data from network attacks from Intrusion Detection System (IDS),and hosts'vulnerabilities and the hosts'states is very large.If we use the large amount of data as the NSSA elements directly,the algorithm of data processing must collapse or use a very long time. So in this paper,a method of data preprocessing for NSSA based on conditional random fields(CRFs) is proposed.This method takes advantages of the CRFs models which can stitch to sequence data marking and add random attributes.It uses varied connection information and its relativity in network connection information data sequence as well as the feature sets relativity to attack detection and discovery of abnormal phenomenon. It uses KDD Cup 1999 data sets as experimental data and comes to a conclusion that our proposed method is practicable,reliable and efficient.
网络安全态势感知(NSSA)一直是网络安全领域的研究热点。来自入侵检测系统(IDS)的网络攻击、主机漏洞和主机状态的数据量非常大。如果直接使用大量的数据作为NSSA元素，数据处理的算法必然崩溃或使用时间很长。为此，本文提出了一种基于条件随机场(CRFs)的NSSA数据预处理方法。该方法利用了CRFs模型可以缝合序列数据标记和添加随机属性的优点。它利用网络连接信息数据序列中的各种连接信息及其相关性以及特征集相关性来进行攻击检测和异常现象的发现。以KDD Cup 1999数据集作为实验数据，结果表明本文提出的方法是可行、可靠和高效的。
{"title":"A New Method of Data Preprocessing for Network Security Situational Awareness","authors":"A. Lu, Jianping Li, L. Yang","doi":"10.1109/DBTA.2010.5659017","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659017","url":null,"abstract":"Network Security Situational Awareness(NSSA) has been a hot research in the network security domain.The amount of data from network attacks from Intrusion Detection System (IDS),and hosts'vulnerabilities and the hosts'states is very large.If we use the large amount of data as the NSSA elements directly,the algorithm of data processing must collapse or use a very long time. So in this paper,a method of data preprocessing for NSSA based on conditional random fields(CRFs) is proposed.This method takes advantages of the CRFs models which can stitch to sequence data marking and add random attributes.It uses varied connection information and its relativity in network connection information data sequence as well as the feature sets relativity to attack detection and discovery of abnormal phenomenon. It uses KDD Cup 1999 data sets as experimental data and comes to a conclusion that our proposed method is practicable,reliable and efficient.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126320491","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}
Pub Date : 2010-12-06DOI: 10.1109/DBTA.2010.5658958
Hui Chen, Chuanjun Zhu
In order to measure and evauate the uncertain factors impacting on the due date of product, the impact factors of the completion date of product on shop floor is intensive investigated firstly. The data of uncertain factors which affected the completion date of products are sorted out, the decision system was made of impact factors that correlative with the completion date of product, and was analyzed by Dominance based Rough Sets Approach. The fuzzy measure based on the classify quality of decision system is introduced to appraise the importance of the impact factors for the completion date of product. By the fuzzy measure, the interdependence of two impact factors is discussed.
{"title":"Fuzzy Measure and Evaluation of Uncertain Factors on Due Date for Product Based on Rough Set Approach","authors":"Hui Chen, Chuanjun Zhu","doi":"10.1109/DBTA.2010.5658958","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5658958","url":null,"abstract":"In order to measure and evauate the uncertain factors impacting on the due date of product, the impact factors of the completion date of product on shop floor is intensive investigated firstly. The data of uncertain factors which affected the completion date of products are sorted out, the decision system was made of impact factors that correlative with the completion date of product, and was analyzed by Dominance based Rough Sets Approach. The fuzzy measure based on the classify quality of decision system is introduced to appraise the importance of the impact factors for the completion date of product. By the fuzzy measure, the interdependence of two impact factors is discussed.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126373453","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}
Pub Date : 2010-12-06DOI: 10.1109/DBTA.2010.5659003
Nan Li, Ruijie Li
Mind Evolutionary Algorithm (MEA) imitates the human mind evolution by using similartaxis and dissimilation operations,which overcomes the prematurity and improves searching efficiency. But the addition of naturally washed out temporary subpopulations is blind and random; the existing searching modes are easily to fall into local convergence.This paper proposed Differential Mind Evolutionary Algorithm (DMEA), which saved the excellent genes in the evolution and brought adequate diversity to the population by introducing the thought of difference into dissimilation operation.Then DMEA is used in the synthesis of circular sparse antenna arrays.The excellent results of computer simulation show the advantage of array antenna patterns synthesis using DMEA.
心智进化算法(MEA)通过相似和异化运算来模拟人类的心智进化，克服了心智进化的早熟性，提高了搜索效率。但是，自然淘汰的临时亚种群的增加是盲目和随机的;现有的搜索模式容易陷入局部收敛。差分思维进化算法(Differential Mind evolution Algorithm, DMEA)通过在异化操作中引入差分思想，使进化过程中保留了优秀的基因，使种群具有足够的多样性。然后将DMEA应用于圆形稀疏天线阵的合成。计算机仿真的良好结果表明了采用DMEA合成阵列天线方向图的优越性。
{"title":"The Application of Circular Sparse Antenna Array Synthesis Based on Differential Mind Evolutionary Algorithm","authors":"Nan Li, Ruijie Li","doi":"10.1109/DBTA.2010.5659003","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659003","url":null,"abstract":"Mind Evolutionary Algorithm (MEA) imitates the human mind evolution by using similartaxis and dissimilation operations,which overcomes the prematurity and improves searching efficiency. But the addition of naturally washed out temporary subpopulations is blind and random; the existing searching modes are easily to fall into local convergence.This paper proposed Differential Mind Evolutionary Algorithm (DMEA), which saved the excellent genes in the evolution and brought adequate diversity to the population by introducing the thought of difference into dissimilation operation.Then DMEA is used in the synthesis of circular sparse antenna arrays.The excellent results of computer simulation show the advantage of array antenna patterns synthesis using DMEA.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120950237","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}
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