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International Conference on Information Technology: Coding and Computing (ITCC'05) - Volume II最新文献

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An adapter to promote reusability of CORBA components in COBOL 一个适配器,用于提高COBOL中CORBA组件的可重用性
C. Chiang
Common Object Request Broker Architecture (CORBA) is an enabling technology that supports heterogeneous applications to work together over networks. However, the implementation of CORBA components suffers from high interaction complexities in the component that seriously degrades the component independence for reuse. In this paper, we are presenting an adapter for implementing CORBA components in COBOL for reuse. The adapter is used to isolate, encapsulate, and manage a component's interactions outside the component. The use of adapters increases the reusability of components and also simplifies the integration of the components to an application. In addition, for organizations using an open-source implementation of CORBA, the work discussed in this paper helps them improve their CORBA middleware implementations to support COBOL interoperability and reuse.
公共对象请求代理体系结构(CORBA)是一种支持异构应用程序在网络上协同工作的启用技术。然而,CORBA组件的实现受到组件中高度交互复杂性的影响,这严重降低了组件的独立性,从而无法重用。在本文中,我们提供了一个适配器,用于在COBOL中实现可重用的CORBA组件。适配器用于隔离、封装和管理组件外部的交互。适配器的使用增加了组件的可重用性,也简化了组件与应用程序的集成。此外,对于使用开源CORBA实现的组织,本文中讨论的工作可以帮助他们改进CORBA中间件实现,以支持COBOL互操作性和重用。
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引用次数: 0
A unified grid query service for grid resource brokers 用于网格资源代理的统一网格查询服务
Leena Al-Hussaini, A. Wendelborn, P. Coddington
Resource brokers on the grid consult a number of distributed information services to select the best data source and/or computational resource based on user requirements. The consultation task increases the design complexity of Resource Brokers. This work is the first attempt to unify the distributed grid information services in one framework. The grid query service (GQS) is composed of information services layered on OGSA-DAI grid services, which are generic data access and integration services. Grid resource brokers can consult just one service, the GQS service, to obtain indexed information about grid resources.
网格上的资源代理咨询许多分布式信息服务,以根据用户需求选择最佳数据源和/或计算资源。咨询任务增加了资源代理的设计复杂性。这是将分布式网格信息服务统一到一个框架中的首次尝试。网格查询服务(GQS)是在OGSA-DAI网格服务上分层的信息服务,是通用的数据访问和集成服务。网格资源代理只能咨询一个服务,即GQS服务,以获取关于网格资源的索引信息。
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引用次数: 1
Elimination of redundant information for Web data mining 消除冗余信息用于Web数据挖掘
S. Taib, Soon-ja Yeom, B. Kang
These days, billions of Web pages are created with HTML or other markup languages. They only have a few uniform structures and contain various authoring styles compared to traditional text-based documents. However, users usually focus on a particular section of the page that presents the most relevant information to their interest. Therefore, Web documents classification needs to group and filter the pages based on their contents and relevant information. Many researches on Web mining report on mining Web structure and extracting information from Web contents. However, they have focused on detecting tables that convey specific data, not the tables that are used as a mechanism for structuring the layout of Web pages. Case modeling of tables can be constructed based on structure abstraction. Furthermore, Ripple Down Rules (RDR) is used to implement knowledge organization and construction, because it supports a simple rule maintenance based on case and local validation.
如今,数十亿的Web页面都是用HTML或其他标记语言创建的。与传统的基于文本的文档相比,它们只有一些统一的结构,并且包含各种创作风格。然而,用户通常会把注意力集中在页面的特定部分,这些部分显示了与他们感兴趣的最相关的信息。因此,Web文档分类需要根据页面的内容和相关信息对页面进行分组和过滤。许多Web挖掘研究都是关于挖掘Web结构和从Web内容中提取信息的。但是,它们的重点是检测传递特定数据的表,而不是用于构建Web页面布局的机制的表。表的用例建模是基于结构抽象的。此外,Ripple Down Rules (RDR)用于实现知识组织和构建,因为它支持基于案例和局部验证的简单规则维护。
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引用次数: 5
A specialization in information and knowledge management systems for the undergraduate computer science curriculum 本科计算机科学课程的信息和知识管理系统专业
S. Argamon, Nazli Goharian, D. Grossman, O. Frieder, N. Raju
The authors described the progress extending the undergraduate computer science (CS) curriculum to include a deep understanding of techniques for information and knowledge management systems (IKMS). In a novel five-course sequence, students build and work with techniques for data mining, information retrieval, and text analysis, and develop a large-scale IKMS project. The authors taught in a hands-on lab setting where students use tools they have built, performing experiments that could extend the field. Hence undergraduates have firsthand knowledge of performing CS research using scientific methods. Second, a rigorous set of evaluation criteria developed in the Psychology Institute was utilized to evaluate how well students learn using our approaches. Ultimately, it is believed that this specialization warrants inclusion as an option in the standard undergraduate CS curriculum.
作者描述了扩展本科计算机科学(CS)课程的进展,以包括对信息和知识管理系统(IKMS)技术的深刻理解。在一个全新的五门课程的顺序中,学生建立和使用数据挖掘、信息检索和文本分析技术,并开发一个大规模的IKMS项目。作者在一个动手的实验室环境中教授,学生使用他们自己建造的工具,进行可以扩展领域的实验。因此,本科生有使用科学方法进行计算机科学研究的第一手知识。其次,心理学研究所制定了一套严格的评估标准,用于评估学生使用我们的方法学习的情况。最终,我们相信,这一专业化值得作为一个选项纳入标准的本科计算机科学课程。
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引用次数: 5
Analyze grid from the perspective of a computing system 从计算系统的角度分析网格
Guoshun Hao, Shilong Ma, Haoming Guo, Xiaolong Wu, Mei Yang, Yingtao Jiang
This paper presents a service-based grid computing model which emphasizes that a grid is a special computing system. By comparing this model with the traditional computing system model, we analyze their similarities and differences, which is important for related grid study. The proposed model is very useful for future study in grid computing: it not only provides instructions for developing a grid system, but also provides a framework for the theoretical grid research.
提出了一种基于服务的网格计算模型,强调网格是一个特殊的计算系统。通过与传统计算系统模型的比较,分析了两者的异同,为相关网格的研究提供了重要依据。该模型不仅为网格系统的开发提供了指导,而且为网格的理论研究提供了一个框架。
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引用次数: 0
ID-based one round authenticated group key agreement protocol with bilinear pairings 基于id的双线性对的一轮认证组密钥协商协议
Yijuan Shi, Gongliang Chen, Jianhua Li
Authenticated group key agreement is important in many modern collaborative and distributed applications. Recently, identity-based authenticated group key agreement has been increasingly researched because of the simplicity of a public key management. Basically, these protocols provide authentication by signatures. Hence they are less efficient for the verification of signatures creates additional computational overhead. In the paper, we propose an efficient authenticated group key agreement protocol by introducing a modified identity-based public key infrastructure with new system setup and key extraction algorithms. The security of our protocol is assured by the discrete logarithm assumption. Moreover, our protocol requires only one round and is more efficient than all previously known ones since it provides authentication without using signatures.
经过身份验证的组密钥协议在许多现代协作和分布式应用程序中非常重要。最近,由于公钥管理的简单性,基于身份的身份验证组密钥协议得到了越来越多的研究。基本上,这些协议通过签名提供身份验证。因此,它们的效率较低,因为签名的验证会产生额外的计算开销。本文通过引入改进的基于身份的公钥基础设施,采用新的系统设置和密钥提取算法,提出了一种高效的认证组密钥协议。离散对数假设保证了协议的安全性。此外,我们的协议只需要一轮,比以前所有已知的协议都更有效,因为它提供了不使用签名的身份验证。
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引用次数: 32
Design of middleware platform to enhance abilities of application systems integration 中间件平台设计,增强应用系统集成能力
Vincent Chang
This research describes a Linux/Unix base middleware platform and GUI operating interface that has been created to help developer overcome the difficulties associated with existing software editing, upgrading, updating and integration. With growing in size and complexity of systems using in current organizations, the developing and maintaining existing or new systems can be really cost-and-time consuming. Even, the present new system might be a burden for the future new system development. We present methods for creating a route for data transmission between multiple platforms. Also, we use less than three API to connect with different application software and communication protocol. For example, TCP/IP communicates with X.25, TCP/IP communicates with SNA. The solution is benefit to an application designer to reduce the effort and time when editing or developing system. The major objective of this research is making breakthrough of providing technique for integrating different system while they consist of different OS, application software, protocol and programming language.
本研究描述了一个基于Linux/Unix的中间件平台和GUI操作界面,以帮助开发人员克服与现有软件编辑、升级、更新和集成相关的困难。随着当前组织中使用的系统的规模和复杂性的增长,开发和维护现有的或新的系统确实是成本和时间的消耗。甚至,目前的新系统可能会成为未来新系统开发的负担。我们提出了在多个平台之间创建数据传输路由的方法。此外,我们使用不到三个API来连接不同的应用软件和通信协议。例如,TCP/IP与X.25通信,TCP/IP与SNA通信。该解决方案有利于应用程序设计人员减少编辑或开发系统时的工作量和时间。本研究的主要目标是在不同操作系统、应用软件、协议和编程语言组成的不同系统的集成技术上取得突破。
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引用次数: 0
A time series data management framework 一个时间序列数据管理框架
Abel Matus-Castillejos, R. Jentzsch
In the real world there are thousands of time series data that coexists with other data. Every day tons of data is collected in the form of time series. Time series is a collection of observations that is recorded or measured over time on a regular or irregular basis generally sequentially. Time series arise in financial, economic, and scientific applications. Typical examples are the recording of different values of stock prices, bank transactions, consumer price index, electricity and telecommunication data, etc. In theory, such data is processed, analyzed, disseminated, and presented. However, many institutions are facing some difficult issues in organizing such a vast amount of data. Therefore, the need for data management tools has become more and more important. This paper addresses this issue by proposing a framework for Time Series Data Management (TSDM). The central abstraction for the proposed domain specific framework is the notion of Business Sections, Group of Time Series, and Time Series itself. The framework integrates minimum specification regarding structural and functional aspects for time series data management.
在现实世界中,有成千上万的时间序列数据与其他数据共存。每天以时间序列的形式收集大量数据。时间序列是在一段时间内按规律或不规则顺序记录或测量的观察结果的集合。时间序列出现在金融、经济和科学应用中。典型的例子是记录股票价格、银行交易、消费者价格指数、电力和电信数据等的不同值。理论上,这些数据是经过处理、分析、传播和呈现的。然而,许多机构在组织如此庞大的数据时面临着一些难题。因此,对数据管理工具的需求变得越来越重要。本文通过提出一个时间序列数据管理(TSDM)框架来解决这个问题。所建议的特定领域框架的中心抽象是业务部分、时间序列组和时间序列本身的概念。该框架集成了关于时间序列数据管理的结构和功能方面的最小规范。
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引用次数: 4
Markov chain correlation based clustering of gene expression data 基于马尔可夫链相关的基因表达数据聚类
Youping Deng, Venkatachalam Chokalingam, Chaoyang Zhang
An efficient Markov chain correlation based clustering method (MCC) has been proposed for clustering gene expression data. The gene expression data is first normalized and Markov chains (MC) are constructed from the dynamics of the gene expressions, in which the behavior of the genes at each step of the experiment can be taken into account. Based on the correlation of one-step Markov chain transition probabilities, an agglomerative method is employed to group the series that have similar behavior at each point. The proposed MCC clustering method has been applied to four gene expression datasets to obtain a number of clusters. The results show that the MCC method outperforms the commonly used K-means method and produces clusters that are more meaningful in terms of the similarity of the grouped genes. Another advantage of the proposed method over the existing clustering methods is that the knowledge of the group number is not required.
提出了一种高效的基于马尔可夫链相关的基因表达数据聚类方法。首先将基因表达数据归一化,并根据基因表达的动态构造马尔可夫链(MC),其中可以考虑基因在实验每一步的行为。基于一步马尔可夫链转移概率的相关性,采用聚类方法对每一点具有相似行为的序列进行分组。提出的MCC聚类方法已应用于四个基因表达数据集,获得了一些聚类。结果表明,MCC方法优于常用的K-means方法,并且根据分组基因的相似性产生更有意义的聚类。与现有的聚类方法相比,该方法的另一个优点是不需要知道组号。
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引用次数: 5
A dynamic method for handling the inference problem in multilevel secure databases 多层安全数据库中推理问题的动态处理方法
X. Chen, R. Wei
The inference problem exits when users can infer sensitive data classified at higher security levels from the knowledge of data at their level by performing inference. Inference problems greatly compromise database security, especially in multilevel secure (MLS) databases where both users and data are classified into different security levels. This paper presents an approach of dynamic control over the inference problem after all inference channels have been identified in a multilevel database. A set of key schemes are used for this purpose. We prove that these schemes are more efficient, in both space and time complexity, than previously proposed approaches.
当用户可以通过推理从自己级别的数据知识中推断出属于较高安全级别的敏感数据时,就会出现推理问题。推理问题极大地损害了数据库的安全性,特别是在用户和数据都被划分为不同安全级别的多层安全数据库中。本文提出了一种在多层数据库中识别出所有推理通道后,对推理问题进行动态控制的方法。为此目的使用了一组密钥方案。我们证明了这些方案在空间和时间复杂度上都比以前提出的方法更有效。
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引用次数: 7
期刊
International Conference on Information Technology: Coding and Computing (ITCC'05) - Volume II
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