Yupei Du, T. Fan, Shunli He, Zhenglong Xu, Guangfeng Liu
In order to increase the pertinence of regulating measures at the late water flooding development of F4 reservoir, analytic hierarchy process was used to evaluate the geologic development factors which influence the water flooding effect. A multi-factor comprehensive evaluation method was developed. The results indicated that the permeability of the thin layers which water was injected into, injection-production well spacing and the injection pressure were the major factors which influence water flooding effect. The application of the method in the F4 reservoir showed its practicality and effectiveness.
{"title":"A Study on the Countermeasures of Improving Water Flooding Effect in F4 Reservior","authors":"Yupei Du, T. Fan, Shunli He, Zhenglong Xu, Guangfeng Liu","doi":"10.1109/ICCIS.2012.50","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.50","url":null,"abstract":"In order to increase the pertinence of regulating measures at the late water flooding development of F4 reservoir, analytic hierarchy process was used to evaluate the geologic development factors which influence the water flooding effect. A multi-factor comprehensive evaluation method was developed. The results indicated that the permeability of the thin layers which water was injected into, injection-production well spacing and the injection pressure were the major factors which influence water flooding effect. The application of the method in the F4 reservoir showed its practicality and effectiveness.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116716947","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}
With the popularity of Extensible Markup Language (XML) as the new standard of data exchange on the web, a large number of data sources are represented or encoded in XML format. Therefore, querying and searching XML data on the web has attracted much attention in the database literature. In this research work, we developed a prototype software system named VXPath to facilitate the efficient evaluation of XPath queries over XML data. VXPath is a visual XPath query evaluator that allows the user to evaluate an XPath query by clicking the nodes in an expanding tree instead of typing the whole XPath query by hand. Our system supports most common XPath axes, such as child, descendant, predicate and so on. In order to handle XML documents in very large size, instead of loading the whole XML document into memory, we extracted a concise data synopsis termed structural summary from the original XML document to avoid the loading overhead for large XML document. We evaluated our system over the data from XMark and DBLP and our system can handle large XML documents up to gigabytes.
{"title":"VXPath: A Visual XPath Query Evaluator","authors":"Weimin He, Teng Lv, Matthew Meis, Ping Yan","doi":"10.1109/ICCIS.2012.362","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.362","url":null,"abstract":"With the popularity of Extensible Markup Language (XML) as the new standard of data exchange on the web, a large number of data sources are represented or encoded in XML format. Therefore, querying and searching XML data on the web has attracted much attention in the database literature. In this research work, we developed a prototype software system named VXPath to facilitate the efficient evaluation of XPath queries over XML data. VXPath is a visual XPath query evaluator that allows the user to evaluate an XPath query by clicking the nodes in an expanding tree instead of typing the whole XPath query by hand. Our system supports most common XPath axes, such as child, descendant, predicate and so on. In order to handle XML documents in very large size, instead of loading the whole XML document into memory, we extracted a concise data synopsis termed structural summary from the original XML document to avoid the loading overhead for large XML document. We evaluated our system over the data from XMark and DBLP and our system can handle large XML documents up to gigabytes.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123351198","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}
A meshless model is developed to investigate behaviors of heat conduction in skin tissues. The model is established through combined use of Laplace transform (LT), radial basis function (RBF) and method of fundamental solution (MFS). The well-known Pennes bioheat model is used to describe the process of heat conduction in skin tissues. First, Laplace transform is applied to handle the time variable in the Pennes bioheat equation, which results in a generalized Helmholtz equation. Then, a RBF-MFS scheme is constructed to solve the Helmholtz equation in Laplace space. Further, Stefest's algorithm is employed to convert the results in Laplace space back into the time space. Finally, the performance of the proposed method is assessed by several benchmark examples. The results demonstrate desirable efficiency and accuracy of the proposed method.
{"title":"Numerical Simulation of Thermal Properties in 2D Biological Tissue by LT-RBF-MFS","authors":"Leilei Cao, J. Pei, Xuemin Zhang","doi":"10.1109/ICCIS.2012.193","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.193","url":null,"abstract":"A meshless model is developed to investigate behaviors of heat conduction in skin tissues. The model is established through combined use of Laplace transform (LT), radial basis function (RBF) and method of fundamental solution (MFS). The well-known Pennes bioheat model is used to describe the process of heat conduction in skin tissues. First, Laplace transform is applied to handle the time variable in the Pennes bioheat equation, which results in a generalized Helmholtz equation. Then, a RBF-MFS scheme is constructed to solve the Helmholtz equation in Laplace space. Further, Stefest's algorithm is employed to convert the results in Laplace space back into the time space. Finally, the performance of the proposed method is assessed by several benchmark examples. The results demonstrate desirable efficiency and accuracy of the proposed method.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123428427","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}
A new approach based on XML element and correlation was proposed to reflect users' fuzzy query intention. Based on the fuzzy sets theory, a fuzzy extension of XPath query expression was proposed, which can be expressed exploiting fuzzy predicates. Then fuzzy query relaxations were provided to get more querying results, which satisfy users' query requests. The proposed scoring method uses an extended vector space model, which considers the element correlation and inverse element frequency, when ranking these query results. According to the matching results, the elements whose scores are greater than the threshold are query results. Finally, the efficiency of the approach is demonstrated by experimental results.
{"title":"Fuzzy Query Based on XML Element and Correlation","authors":"Ruixia Li, Shoubao Su","doi":"10.1109/ICCIS.2012.161","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.161","url":null,"abstract":"A new approach based on XML element and correlation was proposed to reflect users' fuzzy query intention. Based on the fuzzy sets theory, a fuzzy extension of XPath query expression was proposed, which can be expressed exploiting fuzzy predicates. Then fuzzy query relaxations were provided to get more querying results, which satisfy users' query requests. The proposed scoring method uses an extended vector space model, which considers the element correlation and inverse element frequency, when ranking these query results. According to the matching results, the elements whose scores are greater than the threshold are query results. Finally, the efficiency of the approach is demonstrated by experimental results.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123981945","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}
Compounded texture is an important method of texture mapping. Some texture samples build compounded texture by a certain rule or style, which can greatly enrich the expressiveness of ceramic product. This paper reviews the constraint of the various samples' texture synthesis method, uses OpenGL blend technology, constructs virtual texture, loads texture to ceramic product, realizes compounded texture mapping finally. This method is simple and effective, which will benefit innovative design of ceramic product.
{"title":"Application of Compounded Texture Mapping to Ceramic Product Design","authors":"Li Juan, Z. Lai","doi":"10.1109/ICCIS.2012.80","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.80","url":null,"abstract":"Compounded texture is an important method of texture mapping. Some texture samples build compounded texture by a certain rule or style, which can greatly enrich the expressiveness of ceramic product. This paper reviews the constraint of the various samples' texture synthesis method, uses OpenGL blend technology, constructs virtual texture, loads texture to ceramic product, realizes compounded texture mapping finally. This method is simple and effective, which will benefit innovative design of ceramic product.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124197265","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}
OpenVPN is an open source Virtual Private Networks product providing cross-platform, secure, highly configurable VPN solutions. Tablet computers seem to be directing many of the emerging trends in the marketing industry at the moment. For this case study, the performance of OpenVPN on Android is measured and analyzed using various configurations parameters including protocol, cipher and compression. The results show that the throughput is mainly impacted by the data compression used, and that the round-trip time is mostly dependent on the transport protocol selected.
{"title":"Performance Evaluation and Analysis of OpenVPN on Android","authors":"Junhua Qu, Tao Li, Fangfang Dang","doi":"10.1109/ICCIS.2012.203","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.203","url":null,"abstract":"OpenVPN is an open source Virtual Private Networks product providing cross-platform, secure, highly configurable VPN solutions. Tablet computers seem to be directing many of the emerging trends in the marketing industry at the moment. For this case study, the performance of OpenVPN on Android is measured and analyzed using various configurations parameters including protocol, cipher and compression. The results show that the throughput is mainly impacted by the data compression used, and that the round-trip time is mostly dependent on the transport protocol selected.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121494770","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}
The conventional algorithm of the BP neural network has some disadvantages such as in the vicinity of the target, if the learning factor is too small, the convergence may be too slow, and if the learning factor is too large, the convergence may be amended too much, leading to oscillations and even dispersing phenomenon. At the same time, the very slow speed of convergence and the main procedure is easily trapped into local minimum value. To tackle these problems, this paper optimizes the learning factor and the Sigmoid function, and improves the conventional BP neural network. The comparison of the results in the simulation analysis shows that the convergence and the accuracy of the improved algorithm are better than that of the conventional algorithm, and it has some intelligent advantages such as that the accuracy of the evaluation results can be improved by continuous self-learning, and there are not subjective factors interference in the application.
{"title":"An Improved BP Neural Network and Its Application","authors":"Rui Mou, Qinyin Chen, Minying Huang","doi":"10.1109/ICCIS.2012.68","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.68","url":null,"abstract":"The conventional algorithm of the BP neural network has some disadvantages such as in the vicinity of the target, if the learning factor is too small, the convergence may be too slow, and if the learning factor is too large, the convergence may be amended too much, leading to oscillations and even dispersing phenomenon. At the same time, the very slow speed of convergence and the main procedure is easily trapped into local minimum value. To tackle these problems, this paper optimizes the learning factor and the Sigmoid function, and improves the conventional BP neural network. The comparison of the results in the simulation analysis shows that the convergence and the accuracy of the improved algorithm are better than that of the conventional algorithm, and it has some intelligent advantages such as that the accuracy of the evaluation results can be improved by continuous self-learning, and there are not subjective factors interference in the application.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124553362","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}
A photo sequence captured with different focal settings is called a focal stack image. By merging the focal stack image we can obtain an all-in-focus image. A merging strategy is introduced in the image fusion process with spatial image transform. A fusion selective function is formed using Laplacian transform and image gradient based on the focal stack photography. Two other methods in spatial domain are compared as well as the proposed method.
{"title":"Combining Laplacian Transform and Image Gradient for Focal Stack Image Fusion","authors":"Tao Zeng, C. Diao, Fei Cheng","doi":"10.1109/ICCIS.2012.103","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.103","url":null,"abstract":"A photo sequence captured with different focal settings is called a focal stack image. By merging the focal stack image we can obtain an all-in-focus image. A merging strategy is introduced in the image fusion process with spatial image transform. A fusion selective function is formed using Laplacian transform and image gradient based on the focal stack photography. Two other methods in spatial domain are compared as well as the proposed method.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"58 17","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120885743","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}
The safety evaluation of petroleum resources based on Grey Correlation-TOPSIS is simple but practical, scientific and reasonable with certain application value. The safety evaluation of petroleum resources based on Grey Correlation-TOPSIS applies approximation coefficient of grey correlation for evaluating the safety degree of petroleum resources and effectively overcomes the shortcomings that the conventional ranking method of approximation to ideal solution cannot fully explore the similar information of data. The ranking result is as follows according to the relative approximation coefficient: America, Germany, Japan, China and India.
{"title":"Safety Evaluation of Petroleum Resources Based on Grey Correlation-TOPSIS","authors":"L. Hao","doi":"10.1109/ICCIS.2012.272","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.272","url":null,"abstract":"The safety evaluation of petroleum resources based on Grey Correlation-TOPSIS is simple but practical, scientific and reasonable with certain application value. The safety evaluation of petroleum resources based on Grey Correlation-TOPSIS applies approximation coefficient of grey correlation for evaluating the safety degree of petroleum resources and effectively overcomes the shortcomings that the conventional ranking method of approximation to ideal solution cannot fully explore the similar information of data. The ranking result is as follows according to the relative approximation coefficient: America, Germany, Japan, China and India.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122381348","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}
This paper deals with the approximate merging problem of two adjacent DP curves with different degrees by a single curve. We first transform the DP curves into the Bézier curves. Then, we merge Bézier curves. Finally, we transform the Bézier curve back into the DP curve. In the end of this paper, numerical examples are provided to demonstrate the validity and efficiency of our algorithms.
{"title":"Approximate Merging of a Pair of DP Curves","authors":"Huahui Cai, Yan Cheng","doi":"10.1109/ICCIS.2012.88","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.88","url":null,"abstract":"This paper deals with the approximate merging problem of two adjacent DP curves with different degrees by a single curve. We first transform the DP curves into the Bézier curves. Then, we merge Bézier curves. Finally, we transform the Bézier curve back into the DP curve. In the end of this paper, numerical examples are provided to demonstrate the validity and efficiency of our algorithms.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131189984","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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