This book constitutes the refereed proceedings of the 4th International Workshop on Databases in Networked Information Systems, DNIS 2005, held in Aizu-Wakamatsu, Japan in March 2005.
　　The 17 revised full papers presented together with 8 invited papers were carefully reviewed and selected for inclusion in the book. The papers are organized in topical sections on information interchange and management systems, Web data management systems, networked information systems applications, and networked information systems implementations.The LNCS series reports state-of-the-art results in computer science research，development，and education，at a high level and in both printed and electronic form. Enjoying tight cooperation with the R&D community，with numerous individuals，as well as with prestigious organizations and societies，LNCS has grown into the most comprehensive computer science research forum available.
The scope of LNCS，including its subseries LNAI，spans the whole range of computer science and information technology including interdisciplinary topics in a variety of application fields. The type of material published traditionally includes.
—proceedings （published in time for the respective conference）
—post-proceedings （consisting of thoroughly revised final full papers）
—research monographs（which may be based on outstanding PhD work，research projects，technical reports，etc.）Information Interchange and Management Systems
　Predictive Business Operations Management
　Conversation Quantization for Conversational Knowledge Process
　Wrapper Generation for Automatic Data Extraction from Large Web Sites
　Efficiently Coding and Querying XML Document
　An Interface for Web Based Access to Dynamic Contents
　HID: An Efficient Path Index for Complex XML Collections with Arbitrary Links
Web Data Management Systems
　Integration of Virtual Reality and Database System Techniques
　From MultiMedia to UniversalMedia
　The Multimedia Semantic Web
　Storing and Retrieving Multimedia Web Notes
　A Searching Method Based on Problem Description and Algorithmic Features
　Augmenting the Power of the Various Versions of LSI Used in Document Retrieval
Networked Information Systems: Applications
　Networked Mining of Atomic and Molecular Data from Electronic Journal Databases on the Internet
　Development of a Data Mining Application for Huge Scale Earth Environmental Data Archives
　Design of Automation Systems for Web Based Courseware Using XML and XSLT
　Towards Open Education Through Distributed and Networked Information Systems - An Experience-Based Approach
　Exploring Web Logs with Coordinated OLAP Dimension Hierarchies
Networked Information Systems: Implementations
　Policies, Models and Languages for Access Control
　Modelling Peer-to-Peer Data Networks Under Complex System Theory
　Attribute-Based Access to Distributed Data over P2P Networks
……
Data Management Systems
Author Index