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2009 International Conference on Computational Science and Its Applications最新文献

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Development of a Graphical User Interface for LaTeX Plotting Software KETpic LaTeX绘图软件KETpic图形用户界面的开发
2009 International Conference on Computational Science and Its Applications Pub Date : 2009-06-29 DOI: 10.1109/ICCSA.2009.34
Yasuyuki Nakamura, Setsuo Takato
{"title":"Development of a Graphical User Interface for LaTeX Plotting Software KETpic","authors":"Yasuyuki Nakamura, Setsuo Takato","doi":"10.1109/ICCSA.2009.34","DOIUrl":"https://doi.org/10.1109/ICCSA.2009.34","url":null,"abstract":"KETpic is a macro package for Computer Algebra System (CAS) to convert plot data created by CAS to LaTeX picture data. We are able to draw fine pictures in LaTeX documents with aid of KETpic. At the present stage, KETpic packages for Maple, Mathematica, Scilab and Maxima are opened to the public and the number of people who gain benefits of KETpic is increasing. However the only way to produce LaTeX picture data is to enter commands on CAS. In order for as many people as possible to use KETpic more intuitively, we have started developing a graphical user interface (GUI) for KETpic. GUI is implemented by Maplets package of Maple.","PeriodicalId":387286,"journal":{"name":"2009 International Conference on Computational Science and Its Applications","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125501738","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: 4
Enhanced Fast Handovers for Proxy Mobile IPv6 增强的移动IPv6代理快速切换
2009 International Conference on Computational Science and Its Applications Pub Date : 2009-06-29 DOI: 10.1109/ICCSA.2009.35
Sooyeol Ryu, Misun Kim, Youngsong Mun
{"title":"Enhanced Fast Handovers for Proxy Mobile IPv6","authors":"Sooyeol Ryu, Misun Kim, Youngsong Mun","doi":"10.1109/ICCSA.2009.35","DOIUrl":"https://doi.org/10.1109/ICCSA.2009.35","url":null,"abstract":"The Internet Engineering Task Force (IETF) has standardized Proxy Mobile IPv6 (PMIPv6). Fast Handovers for Proxy Mobile IPv6 (PFMIPv6) was studied by mipshop working group to reduce packet loss in PMIPv6. PFMIPv6 is fast handover extension of PMIPv6. PFMIPv6 handover latency is longer than PMIPv6, although it reduces packet loss in PMIPv6. In this paper, we propose Enhanced PFMIPv6 to reduce handover latency. In the proposed scheme, the Proxy Binding Update (PBU) message is sent to Local Mobility Agent, in advance, when new mobile access gateway (NMAG) receives the Handover Initiate (HI) message. The HI message includes necessary information to build PBU. We analyze the performance of EPFMIPv6 compared with PMIPv6 and PFMIPv6 mathematically.","PeriodicalId":387286,"journal":{"name":"2009 International Conference on Computational Science and Its Applications","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122181229","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: 16
Use of ImplicitPlot in Drawing Surfaces Embedded into LATEX Documents 使用ImplicitPlot绘制嵌入到LATEX文档中的曲面
2009 International Conference on Computational Science and Its Applications Pub Date : 2009-06-29 DOI: 10.1109/ICCSA.2009.18
Setsuo Takato, A. Gálvez, A. Iglesias
{"title":"Use of ImplicitPlot in Drawing Surfaces Embedded into LATEX Documents","authors":"Setsuo Takato, A. Gálvez, A. Iglesias","doi":"10.1109/ICCSA.2009.18","DOIUrl":"https://doi.org/10.1109/ICCSA.2009.18","url":null,"abstract":"KETpic is a macro package of computer algebra systems(CAS) that allows us to insert figures easily into LATEX documents. As such, KETpic can also be used to generate surfaces. But because surfaces appear flat both on the screen and in printed form, shading is often used to emphasize their inherent three-dimensional nature. Unfortunately, this solution is no longer valid in KETpic, as it generates figures in black-and-white only. In this paper, we outline some techniques to yield line drawing pictures of surfaces by using plot data obtained from implicit functions of two variables. The paper discusses some theoretical issues regarding the use of the ImplicitPlot command for drawing surfaces and describes the implementation of our results by means of several illustrative examples. As the reader will see, we obtain very nice figures that can readily be embedded into our LATEX documents in order to yield educational materials as well as professional printouts of scientific documents.","PeriodicalId":387286,"journal":{"name":"2009 International Conference on Computational Science and Its Applications","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125113608","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: 7
Process Mining Based on Specification Slicing for Dynamic Reconfiguration 基于规范切片的动态重构过程挖掘
2009 International Conference on Computational Science and Its Applications Pub Date : 2009-06-29 DOI: 10.1109/ICCSA.2009.21
Su-Jin Baek, Jinhyang Kim, Young-Jae Song
{"title":"Process Mining Based on Specification Slicing for Dynamic Reconfiguration","authors":"Su-Jin Baek, Jinhyang Kim, Young-Jae Song","doi":"10.1109/ICCSA.2009.21","DOIUrl":"https://doi.org/10.1109/ICCSA.2009.21","url":null,"abstract":"Companies faced with rapid changes in market environment and uncertain demands of consumers are actively making investments in the information system and it is expediting the growth of the market for workflow which automates the work process. The concept of workflow mining is required for designing and supporting the business process focusing on productivity enhancement. The existing workflow mining technology was designed to extract business process redesign information from simple database fields or create a process model by collecting, identifying, and analyzing log information from the system that it could not be dynamically reconfigured by exploring the process flow suitable for new requests made on business process. This study suggests data extraction algorithm helpful to dynamic reconfiguration by analyzing semantic relationship based on specification slicing technique so that the new service requests given by the user are dynamically reflected in the initial workflow scenario without interrupting the workflow service in operations","PeriodicalId":387286,"journal":{"name":"2009 International Conference on Computational Science and Its Applications","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130067105","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
On Voronoi Diagrams for Lines in the Plane 论平面直线的Voronoi图
2009 International Conference on Computational Science and Its Applications Pub Date : 2009-06-29 DOI: 10.1109/ICCSA.2009.39
G. Barequet, K. Vyatkina
{"title":"On Voronoi Diagrams for Lines in the Plane","authors":"G. Barequet, K. Vyatkina","doi":"10.1109/ICCSA.2009.39","DOIUrl":"https://doi.org/10.1109/ICCSA.2009.39","url":null,"abstract":"We describe a method based on the wavefront propagation, which computes a multiplicatively weighted Voronoi diagram for a set $L$ of $n$ lines in the plane in $O(n^2 log n)$ time and $O(n^2)$ space. In the process, we derive complexity bounds and certain structural properties of such diagrams. An advantage of our approach over the general purpose machinery, which requires computation of the lower envelope of a set of halfplanes in three-dimensional space, lies in its relative simplicity. Besides, we point out that the unweighted Voronoi diagram for $n$ lines in the plane has a simple structure, and can be obtained in optimal $Theta(n^2)$ time and space.","PeriodicalId":387286,"journal":{"name":"2009 International Conference on Computational Science and Its Applications","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132093850","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: 4
Finding Frequent Structures in XML Stream Data 查找XML流数据中的频繁结构
2009 International Conference on Computational Science and Its Applications Pub Date : 2009-06-29 DOI: 10.1109/ICCSA.2009.17
J. Hwang, M. Gu
{"title":"Finding Frequent Structures in XML Stream Data","authors":"J. Hwang, M. Gu","doi":"10.1109/ICCSA.2009.17","DOIUrl":"https://doi.org/10.1109/ICCSA.2009.17","url":null,"abstract":"The XML data of continuous stream type are popular in network application through the internet. And also there are researches related to query processing for streaming XML data. As a basic research to efficiently query, we propose not only a labeled ordered tree model representing the XML but also a mining method to extract frequent structures from streaming XML data. That is, XML data to continuously be inputted are modeled by a stream tree which is called XFP_tree and we exactly extract the frequent structures from the XFP_tree of current window to mine recent data. The proposed method can be applied to the basis of the query processing and index method for XML stream data.","PeriodicalId":387286,"journal":{"name":"2009 International Conference on Computational Science and Its Applications","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131299619","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
Visualization and Web Services for Studying Molecular Properties 用于研究分子性质的可视化和Web服务
2009 International Conference on Computational Science and Its Applications Pub Date : 2009-06-29 DOI: 10.1109/ICCSA.2009.41
A. Costantini, S. Tasso, O. Gervasi
{"title":"Visualization and Web Services for Studying Molecular Properties","authors":"A. Costantini, S. Tasso, O. Gervasi","doi":"10.1109/ICCSA.2009.41","DOIUrl":"https://doi.org/10.1109/ICCSA.2009.41","url":null,"abstract":"The access to large and distributed computing resources requires by the scientist a strong knowledge of a variety of interfaces and operating system environments. In the present paper we illustrate a prototypical implementation of a user interface based on visualization and Web Services implemented for the Computational Chemistry community to use molecular and matter sciences applications in a friendly and intuitive fashion. The application presented allows the ¿nal user to study, in a more intuitive and enriched way, the outcomes of the molecular simulation, fostering a better comprehension of properties and mechanisms of the investigated molecular systems. The particular application chosen for the present study is the quantum mechanical atom-diatom reactive scattering program called ABC that carries out accurate calculations of the quantum S matrix elements to evaluate reaction probabilities as well as state-to-state integral and differential cross sections. The presented application is designed to minimize the knowledge required to the scientist in order to be able to execute on a given computational environment the simulation and the study of the molecular properties of complex systems, focusing their attention merely on the computational chemistry aspects of this activity.","PeriodicalId":387286,"journal":{"name":"2009 International Conference on Computational Science and Its Applications","volume":"206 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123276331","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
An Automatic Non-rigid Point Matching Method for Dense 3D Face Scans 稠密三维人脸扫描的非刚性点自动匹配方法
2009 International Conference on Computational Science and Its Applications Pub Date : 2009-06-29 DOI: 10.1109/ICCSA.2009.12
Yongli Hu, Mingquan Zhou, Zhongke Wu
{"title":"An Automatic Non-rigid Point Matching Method for Dense 3D Face Scans","authors":"Yongli Hu, Mingquan Zhou, Zhongke Wu","doi":"10.1109/ICCSA.2009.12","DOIUrl":"https://doi.org/10.1109/ICCSA.2009.12","url":null,"abstract":"In this paper, we present an automatic point matching method to overcome the dense point alignment of 3D face scans. We adopt TPS (thin plate spline) transformation to model the deformation of different 3D faces, because TPS is a type of non-rigid transformation with good smooth property and suitable for formulating the complexities of human facial morphology. Generally, TPS is derived from the interpolation between two sets of aligned controlling points. To obtain fully automatic point matching method, a random point selecting method is proposed to get the controlling points of 3D faces. Integrating the point generating method with an iterative closest point searching strategy, we achieve a point-to-point alignment solution for dense 3D face scans. The point matching tests on BJUT 3D face database reveal that the TPS based method has flexible shape deformation ability. Comparing with the hand-selecting controlling point method our method has better point matching accuracy and stability. It is proved that the presented method is efficient for dense point registration with non-rigid deformation.","PeriodicalId":387286,"journal":{"name":"2009 International Conference on Computational Science and Its Applications","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115785521","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
Selective Context Switching on Flash Memory 选择性上下文切换Flash内存
2009 International Conference on Computational Science and Its Applications Pub Date : 2009-06-29 DOI: 10.1109/ICCSA.2009.24
Sehwan Lee, S. Hyun, K. Koh
{"title":"Selective Context Switching on Flash Memory","authors":"Sehwan Lee, S. Hyun, K. Koh","doi":"10.1109/ICCSA.2009.24","DOIUrl":"https://doi.org/10.1109/ICCSA.2009.24","url":null,"abstract":"Flash memory prevails as a mobile storage device because it offers a fast read access time and better shock resistance compared to a hard disk. However, generic operating systems such as Linux do not take advantages of the hardware performance of flash memory because they do not change the architectures which are optimized for hard disks. The existing operation systems switch contexts to handle requests upon every device activation. If Linux switches contexts with every request when using hard disks as storage devices,the context switching time is not burdened compared to its total I/O time. However, in the event that Linux uses flash memory as a storage device, the context switching time becomes greatly burdened due to its fast access time. This paper improves the context switching scheme by reducing the amount of unnecessary context switching. As a result,an overall performance increase of 5% is gained regardless of the workloads.","PeriodicalId":387286,"journal":{"name":"2009 International Conference on Computational Science and Its Applications","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126576101","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
Fast Handover for Mobile IPv6 over IEEE 802.16e Networks IEEE 802.16e网络上移动IPv6的快速切换
2009 International Conference on Computational Science and Its Applications Pub Date : 2009-06-29 DOI: 10.1109/ICCSA.2009.33
Kyunghye Lee, Youngsong Mun
{"title":"Fast Handover for Mobile IPv6 over IEEE 802.16e Networks","authors":"Kyunghye Lee, Youngsong Mun","doi":"10.1109/ICCSA.2009.33","DOIUrl":"https://doi.org/10.1109/ICCSA.2009.33","url":null,"abstract":"IEEE 802.16e adds mobility support to the IEEE 802.16 standard so that terminals can move while receiving services and preserve ongoing IP sessions during handover. IP layer handover for MSs is handled by MIPv6. The cross-layer scheme supports seamless handover by exploiting the link layer handover indicator and designing interleaving scheme of the 802.16e and the FMIPv6 handover procedures. We propose an optimized cross-layer scheme supporting fast handover for MIPv6 over IEEE 802.16e environment. We evaluate the performance of the original scheme and the proposed scheme in terms of the signaling cost and handover latency by using the packet-level traffic model, system mode land mobility model. From the results of the performance evaluation, we can expect that the proposed scheme supports fast handover for MIPv6 insusceptible of the new address confirmation latency.","PeriodicalId":387286,"journal":{"name":"2009 International Conference on Computational Science and Its Applications","volume":"716 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132595547","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
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