Pub Date : 2010-12-06DOI: 10.1109/DBTA.2010.5658978
Zhanhong Tang, Shutian Yan
Because the current triangle mesh simplification algorithm base on edge collapse have the problem that it always miss the Geometric Features of models,we present a new method of edge collapse triangle mesh simplification.The new method based on the classical algorithm QEM,using Guassian curvature we define the concept of curvature factors of collapsing edge and embed it into the original Garland's quadric error metric,so that the metric can not only measure distance error but also reflect geometric variations of local surface.The experimental results show that the new method can reserve quite a number of important shape features and reduce visual distortion effectively at low levels of detail.
{"title":"A Mesh Simplification Algorithm Based on Curvature Factor of Collapsing Edge","authors":"Zhanhong Tang, Shutian Yan","doi":"10.1109/DBTA.2010.5658978","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5658978","url":null,"abstract":"Because the current triangle mesh simplification algorithm base on edge collapse have the problem that it always miss the Geometric Features of models,we present a new method of edge collapse triangle mesh simplification.The new method based on the classical algorithm QEM,using Guassian curvature we define the concept of curvature factors of collapsing edge and embed it into the original Garland's quadric error metric,so that the metric can not only measure distance error but also reflect geometric variations of local surface.The experimental results show that the new method can reserve quite a number of important shape features and reduce visual distortion effectively at low levels of detail.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"1 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":"130649219","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.2010.5658931
Wenlue Song, Yan Zhang, Wenyang Bai
Recently, social network privacy becomes a hot issue in the field of privacy. We are concerned about the path nodes in the social network. With the knowledge of the two endpoints of a path, the adversary can attack the privacy of the nodes on this path. In this paper, we define the adversary's background knowledge, propose the anonymity model, and propose PN- Anonymity algorithm to adjust paths. Experimental results show that our algorithms can achieve the path nodes anonymous, and information loss can be well controlled to ensure the availability of information.
{"title":"Anonymizing Path Nodes in Social Network","authors":"Wenlue Song, Yan Zhang, Wenyang Bai","doi":"10.1109/DBTA.2010.5658931","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5658931","url":null,"abstract":"Recently, social network privacy becomes a hot issue in the field of privacy. We are concerned about the path nodes in the social network. With the knowledge of the two endpoints of a path, the adversary can attack the privacy of the nodes on this path. In this paper, we define the adversary's background knowledge, propose the anonymity model, and propose PN- Anonymity algorithm to adjust paths. Experimental results show that our algorithms can achieve the path nodes anonymous, and information loss can be well controlled to ensure the availability of information.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"57 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":"126994110","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.2010.5659071
Zhaoxia Zheng, De Xia
while e-commerce is developing dramatically.it become promising and profitable for businessman.But it is significant to set up proper business model and information system based on internet, which ensure the distributed entities will running smoothly and efficiently as in the same organization.This essay explored the mode and characteristics of e-commerce according to the practical procedure.Then the distributed system is designed, which will match various e-commerce modes for the mission of high performance.
{"title":"Research on Distributed System Mode for e-Commerce","authors":"Zhaoxia Zheng, De Xia","doi":"10.1109/DBTA.2010.5659071","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659071","url":null,"abstract":"while e-commerce is developing dramatically.it become promising and profitable for businessman.But it is significant to set up proper business model and information system based on internet, which ensure the distributed entities will running smoothly and efficiently as in the same organization.This essay explored the mode and characteristics of e-commerce according to the practical procedure.Then the distributed system is designed, which will match various e-commerce modes for the mission of high performance.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"23 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":"121612204","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.2010.5658935
Lin Qiu, Meina Song, Lianru Liu, Junde Song
In this paper,a novel network architecture that incorporating cooperative diversity techniques to increase the cellular network throughput is proposed.We design a relay selection strategy in this network architecture design,where the proxy node will select a relay node based on the channel quality and nodes'residual energy to enhance the users'fairness among the nodes. Moreover,we propose a novel power allocation scheme to minimize the power consumption of the whole network.The implementation of the algorithm is given to show that the proposed relay selection and power allocation scheme can provide significant network performance improvement in terms of network power consumption and quality of service due to the using of cooperative diversity techniques.
{"title":"Relay Selection and Power Allocation Scheme for Cellular Network Using Cooperative Diversity","authors":"Lin Qiu, Meina Song, Lianru Liu, Junde Song","doi":"10.1109/DBTA.2010.5658935","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5658935","url":null,"abstract":"In this paper,a novel network architecture that incorporating cooperative diversity techniques to increase the cellular network throughput is proposed.We design a relay selection strategy in this network architecture design,where the proxy node will select a relay node based on the channel quality and nodes'residual energy to enhance the users'fairness among the nodes. Moreover,we propose a novel power allocation scheme to minimize the power consumption of the whole network.The implementation of the algorithm is given to show that the proposed relay selection and power allocation scheme can provide significant network performance improvement in terms of network power consumption and quality of service due to the using of cooperative diversity techniques.","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":"126251829","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.2010.5659073
Jing Wang, F. Xu
This paper focuses on the researches of Ajax technique and its application based on J2EE.The advantage and the disadvantage of using Ajax technique are analyzed through the experiments.Ajax technique is a comprehensive utilization of a set of Web2.0 core technology.The difference from the traditional Web working module is that Ajax technique adopts asynchronous to send request to server.The advantage is to update the response data locally on the current page, so that user does not experience updating interaction. However,when the amount of response data increases,the burden on server also increases. Thus, the waiting period for response data is extended at users.Ajax technique only adapts to the Web application programs with small amount of data transfer and frequent interaction. Another feature of Ajax technique is that the Browser's"backwards" function is impacted.
{"title":"The Research of Ajax Technique Application Based on the J2EE","authors":"Jing Wang, F. Xu","doi":"10.1109/DBTA.2010.5659073","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659073","url":null,"abstract":"This paper focuses on the researches of Ajax technique and its application based on J2EE.The advantage and the disadvantage of using Ajax technique are analyzed through the experiments.Ajax technique is a comprehensive utilization of a set of Web2.0 core technology.The difference from the traditional Web working module is that Ajax technique adopts asynchronous to send request to server.The advantage is to update the response data locally on the current page, so that user does not experience updating interaction. However,when the amount of response data increases,the burden on server also increases. Thus, the waiting period for response data is extended at users.Ajax technique only adapts to the Web application programs with small amount of data transfer and frequent interaction. Another feature of Ajax technique is that the Browser's\"backwards\" function is impacted.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"25 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":"121914650","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.2010.5659018
Hui Song, Lifeng Wang, Baiyan Li, Xiaoqiang Liu
Traditional Clustering is a powerful technique for revealing the "hot" topics among documents. However, it's hard to discover the new type events coming out gradually. In this paper, we propose a novel model for detecting new clusters from time-streaming documents. It consists of three parts: the cluster definition based on Multi-Representation Index Tree (MI-Tree), the new cluster detecting process and the metrics for measuring a new cluster. Compared with the traditional method, we process the newly coming data first and merge the old clustering tree into the new one. This algorithm can avoid this effect: the documents enjoying high similarity were assigned to different clusters. We designed and implemented a system for practical application, the experimental results on a variety of domains demonstrate that our algorithm can recognize new valuable clusters during the iteration process, and produce quality clusters.
{"title":"New Cluster Detection Based on Multi-Representation Index Tree Text Clustering","authors":"Hui Song, Lifeng Wang, Baiyan Li, Xiaoqiang Liu","doi":"10.1109/DBTA.2010.5659018","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659018","url":null,"abstract":"Traditional Clustering is a powerful technique for revealing the \"hot\" topics among documents. However, it's hard to discover the new type events coming out gradually. In this paper, we propose a novel model for detecting new clusters from time-streaming documents. It consists of three parts: the cluster definition based on Multi-Representation Index Tree (MI-Tree), the new cluster detecting process and the metrics for measuring a new cluster. Compared with the traditional method, we process the newly coming data first and merge the old clustering tree into the new one. This algorithm can avoid this effect: the documents enjoying high similarity were assigned to different clusters. We designed and implemented a system for practical application, the experimental results on a variety of domains demonstrate that our algorithm can recognize new valuable clusters during the iteration process, and produce quality clusters.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"17 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":"123685132","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.2010.5659091
Lin Chen
In the competitive electronic commerce market, how to evaluate and improve the qualify of its service has become a focus problem. The quality evaluation model of electronic commerce service based on the AHP-FUZZY combines both qualitative analysis and quantitative analysis, forms the overall evaluation framework through the use of evaluation indexes, which draws the comparable and analyzable indexes and numerical value that represent the service quality. This model provides a common method of quantification, and is proved effective and feasible through case study.
{"title":"The Quality Evaluation Model of Electronic Commerce Service Based on the AHP-FUZZY and Its Case Study","authors":"Lin Chen","doi":"10.1109/DBTA.2010.5659091","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659091","url":null,"abstract":"In the competitive electronic commerce market, how to evaluate and improve the qualify of its service has become a focus problem. The quality evaluation model of electronic commerce service based on the AHP-FUZZY combines both qualitative analysis and quantitative analysis, forms the overall evaluation framework through the use of evaluation indexes, which draws the comparable and analyzable indexes and numerical value that represent the service quality. This model provides a common method of quantification, and is proved effective and feasible through case study.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"1 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":"129766809","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.2010.5658975
Xiaoyan Jiang, Yujun Bao
This paper introduces the SignalTap II basic content and features.Combined with concrete examples, described FPGA debugging methods and steps with SignalTap II in detail. Experimental results demonstrate that FPGA test with SignalTap II make debugging easier and speed up the system development, with very good results.
{"title":"Application of SignalTap II Logic Analyzer in the FPGA Test","authors":"Xiaoyan Jiang, Yujun Bao","doi":"10.1109/DBTA.2010.5658975","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5658975","url":null,"abstract":"This paper introduces the SignalTap II basic content and features.Combined with concrete examples, described FPGA debugging methods and steps with SignalTap II in detail. Experimental results demonstrate that FPGA test with SignalTap II make debugging easier and speed up the system development, with very good results.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"55 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":"127578893","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.2010.5659052
Wenkai Liu, Y. Sun, Mengmeng Zhang, Zhaoliang Guo
A nonlinear exponential weighted algorithm is proposed for the MAD calculation based on deep research on the proposal of rate control-JVT-H017, as rate control is an important component of video compression technology which plays a great role in stabilizing rate and ensures a good reception quality. In addition, a new judging method of rate control effects is also introduced before representing the new algorithm. Experiment results show that the improved algorithm which keeps the video quality can make the actual rate closer to the target rate, compared with that of the original scheme.
{"title":"An Improved Frame Layer Rate Control Algorithm","authors":"Wenkai Liu, Y. Sun, Mengmeng Zhang, Zhaoliang Guo","doi":"10.1109/DBTA.2010.5659052","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5659052","url":null,"abstract":"A nonlinear exponential weighted algorithm is proposed for the MAD calculation based on deep research on the proposal of rate control-JVT-H017, as rate control is an important component of video compression technology which plays a great role in stabilizing rate and ensures a good reception quality. In addition, a new judging method of rate control effects is also introduced before representing the new algorithm. Experiment results show that the improved algorithm which keeps the video quality can make the actual rate closer to the target rate, compared with that of the original scheme.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"47 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":"127890911","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.2010.5658945
Hui Zhang, Xin-ping Yan, Chaozhong Wu, Song Gao, Hu Lei
Improvement of driving behavior was considered one effective way to enhance driver's safety awareness and to improve traffic safety.In this study,a specialized database used for driving behavior analysis was proposed as an important method to evaluate the variation characteristic of driving.All the functions which this database needs to be realized were firstly studied. The sufficient data composition was then researched to meet the functions. The conceptual framework and logical framework of the database and the relationship between the indexes were then designed based on the functional requirements analysis.The procedure to realize this database was then introduced. Fatigue driving was finally demonstrated as an example to explain how this database was used to analyze the driving behavior.The results show that this database can be used as effective tool to analyze the behavior risky conditions and improve the analysis efficiency.
{"title":"Design and Implementation of Driving Behavior Analysis Database","authors":"Hui Zhang, Xin-ping Yan, Chaozhong Wu, Song Gao, Hu Lei","doi":"10.1109/DBTA.2010.5658945","DOIUrl":"https://doi.org/10.1109/DBTA.2010.5658945","url":null,"abstract":"Improvement of driving behavior was considered one effective way to enhance driver's safety awareness and to improve traffic safety.In this study,a specialized database used for driving behavior analysis was proposed as an important method to evaluate the variation characteristic of driving.All the functions which this database needs to be realized were firstly studied. The sufficient data composition was then researched to meet the functions. The conceptual framework and logical framework of the database and the relationship between the indexes were then designed based on the functional requirements analysis.The procedure to realize this database was then introduced. Fatigue driving was finally demonstrated as an example to explain how this database was used to analyze the driving behavior.The results show that this database can be used as effective tool to analyze the behavior risky conditions and improve the analysis efficiency.","PeriodicalId":320509,"journal":{"name":"2010 2nd International Workshop on Database Technology and Applications","volume":"46 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120893366","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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