Studies on Cooperative Information Systems

协同信息系统研究

• 批准号: 10044154
• 负责人: KAMBAYASHI Yahiko
• 金额: $ 5.18万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-10044154/
• 关键词: Database; Hypermedia; Cooperative Systems; Multimedia; Virtual Office; Object-Oriented; Data Warehouse; View Functions; 協調作業; 動的環境更新; 協調トランザクション処理; マルチメディアデータベース; データベースビュー; 遠隔教育

This research aims at realizing distributed cooperative work environments for integrating and utilizing various information resources distributed among networks. Themes of this research include pursuing cooperative interoperability of distributed heterogeneous multimedia information and modeling cooperative information systems by extending object-oriented model.In 1998, mechanisms for dynamic updating of environments are designed for a virtual office application system. Transaction in cooperative systemsare required more detailed control and flexibility than conventional transactions. A new method that realizes such tranactions has been developed. We also have exarnined trends in technologies related to data warehouse, made a submission about guidelines for the research community, developed a new method for view update that improves in efficiency of conventional solutions, and designed and implemented an action history view function on a cooperative hypermedia system.In 1999, the devel … More opment of a multimedia cooperative processing system that is a platform for development of application systems such as a distance education system and a virtual office system has proceeded, and feedback from users was obtained by experiments about usage. We also studied extension of interoperability in multimedia databases supporting personalization for each user and a model for multimedia information systems based on extension of view functions of object-oriented databases. The model was incorporated with the architecture of our cooperative hypermedia system. In addition to these, utilization of a data warehouse technology in cooperative systems and parallel processing for increasing efficiency and a guarantee of correctness in cooperative processing were studied.In 2000, we have integrated our research results about cooperative information systems, reorganized them as basic techniques for developing practical cooperative systems. First, a mechanism for management of transitions of working status in a cooperative hypermedia system was designed, implemented, and evaluated. It shows that the mechanism decreases a operating load of work managers and supports cooperative work that has complex working statuses. Secondly, we integrated action history view mechanisms into our education support system and used the system in practice. It became clear that the action history view mechanisms are useful in practical application such as education systems. We also studied methods for raising WWW cache hit-rate and proposed a new concept web-warehouse, which integrates WWW and data warehouse technologies and provides more advanced utilization of WWW data. Less

本研究旨在实现分布式协作工作环境，整合和利用分布在网络中的各种信息资源。本研究的主题包括追求分布式异构多媒体信息的协作互操作性以及通过扩展面向对象模型来建模协作信息系统。1998年，为虚拟办公应用系统设计了环境动态更新机制。协作系统中的交易比传统交易需要更细致的控制和灵活性。一种实现此类交易的新方法已经被开发出来。我们还研究了数据仓库相关技术的趋势，向研究界提交了指导方针，开发了一种新的视图更新方法，提高了传统解决方案的效率，并在协作超媒体系统上设计和实现了动作历史视图功能。1999年，开发了多媒体协作处理系统，该系统是远程教育系统和虚拟办公系统等应用系统的开发平台。 继续进行，并通过使用实验获得用户的反馈。我们还研究了支持每个用户个性化的多媒体数据库互操作性的扩展，以及基于面向对象数据库视图功能扩展的多媒体信息系统模型。该模型与我们的合作超媒体系统的架构相结合。除此之外，还研究了协同系统中数据仓库技术的利用以及并行处理以提高协同处理的效率和保证正确性。2000年，我们整合了协同信息系统的研究成果，将其重新整理为开发实用协同系统的基本技术。首先，设计、实现和评估了协作超媒体系统中工作状态转换的管理机制。表明该机制减轻了工作管理者的操作负担，支持复杂工作状态的协同工作。其次，我们将行动历史观机制融入到我们的教育支持系统中，并在实践中使用该系统。很明显，行动历史查看机制在教育系统等实际应用中非常有用。我们还研究了提高WWW缓存命中率的方法，提出了Web仓库的新概念，它融合了WWW和数据仓库技术，提供了对WWW数据更高级的利用。较少的

项目成果

Zhiyong Peng: "Realization of Computer Supported Cooperative Work Environments Using the Object Deputy Model"Proc.of the International Database Engineering and Applications Symposium '98. 276-285 (1998)

彭志勇：“利用对象代理模型实现计算机支持的协同工作环境”98年国际数据库工程与应用研讨会论文集。

Y.Zhang: "A Novel Timestamp Ordering Approach for Co-existing Traditional and Cooperative Transaction Processing" Proc.of the 3rd IFCIS Conference on Cooperative Information Systems(Coop IS '98). 132-147 (1998)

Y.Zhang：“一种用于共存传统和协作事务处理的新颖时间戳排序方法”第三届 IFCIS 协作信息系统会议（Coop IS 98）的会议记录。

Y.Yokota: "Extended Awareness Support for Cooperative Work in Non-WYSIWIS Condition"ICSC 99 Internet Aplications, Lecture Notes in Computer Science. 1749. 186-195 (1999)

Y.Yokota：“非所见即所得条件下合作工作的扩展意识支持”ICSC 99 互联网应用，计算机科学讲义。

Y.Kambayashi: "Action History Views And Their Application to Distance Education Systems (Keynote paper)"DWACOS Conference, Databases, Web and Cooperative Systems. Vol.1. 1-6 (1999)

Y.Kambayashi：“行动历史观点及其在远程教育系统中的应用（主题论文）”DWACOS 会议、数据库、网络和合作系统。

Mukesh Mohania: "Designing View Maintenance Algorithm in Data Warehousing Environment" Proc.of the International Workshops on Data Warehousing & Data Mining. (1998)

Mukesh Mohania：“设计数据仓库环境中的视图维护算法”Proc.of the International Workshops on Data Warehousing