The Asia-Paci?c region has emerged in recent years as one of the fastest g- wing regions in the world in the use of Web technologies as well as in making signi?cant contributions to WWW research and development. Since the ?rst Asia-Paci?c Web conference in 1998, APWeb has continued to provide a forum for researchers, professionals, and industrial practitioners from around the world to share their rapidly evolving knowledge and to report new advances in WWW technologies and applications. APWeb 2004 received an overwhelming 386 full-paper submissions, including 375 research papers and 11 industrial papers from 20 countries and regions: A- tralia,Canada,China,France,Germany,Greece,HongKong,India,Iran,Japan, Korea, Norway, Singapore, Spain, Switzerland, Taiwan, Turkey, UK, USA, and Vietnam. Each submission was carefully reviewed by three members of the p- gram committee. Among the 386 submitted papers, 60 regular papers, 24 short papers, 15 poster papers, and 3 industrial papers were selected to be included in the proceedings. The selected papers cover a wide range of topics including Web services, Web intelligence, Web personalization, Web query processing, Web - ching, Web mining, text mining, data mining and knowledge discovery, XML database and query processing, work?ow management, E-commerce, data - rehousing, P2P systems and applications, Grid computing, and networking. The paper entitled "Towards Adaptive Probabilistic Search in Unstructured P2P - stems", co-authored by Linhao Xu, Chenyun Dai, Wenyuan Cai, Shuigeng Zhou, and Aoying Zhou, was awarded the best APWeb 2004 student paper.

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Keynote Papers.- Monitoring Continual Range Queries.- The Next Generation Messaging Technology - Makes Web Services Effective.- Web Searching and ?2 Queries.- Invited Papers.- Secure Information Caching on the Web.- Multiresolution Spatial Databases: Making Web-Based Spatial Applications Faster.- A Query-Dependent Duplicate Detection Approach for Large Scale Search Engines.- Web Semantics.- A Semantic Approach for Web Indexing.- Semantic, Hierarchical, Online Clustering of Web Search Results.- SIMON: A Multi-strategy Classification Approach Resolving Ontology Heterogeneity on the Semantic Web.- Web Personalization.- Support Vector Machines Learning for Web-Based Adaptive and Active Information Retrieval.- Constructing User Profiles for Collaborative Recommender System.- Unloading Unwanted Information: From Physical Websites to Personalized Web Views.- Web Intelligence.- iSurfer: A Focused Web Crawler Based on Incremental Learning from Positive Samples.- Identifying Parallel Web Documents by Filenames.- Reflective Web Interface Agent.- A Finite State Mobile Agent Computation Model.- XML Processing I.- Improving XML Query Performance Using Social Classes.- Answering XML Twig Queries with Automata.- Labeling and Querying Dynamic XML Trees.- XML Processing II.- Scalable XSLT Evaluation.- Algebraic Transformation and Optimization for XQuery.- Efficient Incremental Pattern Mining from Semi-structured Dataset.- Efficient Query Routing for XML Documents Retrieval in Unstructured Peer-to-Peer Networks.- XML and Database.- Generalized Inclusion Dependencies in XML.- Graphical Representation of XML Schema.- MTrie: A Scalable Filtering Engine of Well-Structured XML Message Stream.- Issues in Cache-Answerability for XML Queries on the Web.- P2P Systems and Applications I.- Towards Adaptive Probabilistic Search in Unstructured P2P Systems.- Cell Abstract Indices for Content-Based Approximate Query Processing in Structured Peer-to-Peer Data Systems.- A Distributed Ranking Strategy in Peer-to-Peer Based Information Retrieval Systems.- PeerSDI: A Peer-to-Peer Information Dissemination System.- P2P Systems and Applications II.- PWSD: A Scalable Web Service Discovery Architecture Based on Peer-to-Peer Overlay Network.- Efficient Community Management and Optimization Strategies of Web Services in Peer-to-Peer Environments.- Towards Load Balancing in Peer-to-Peer Environment of Web Services.- Grid Computing and Networking.- Research on Service Model of Content Delivery Grid.- Performance-Driven Task and Data Co-scheduling Algorithms for Data-Intensive Applications in Grid Computing.- On Analysis and Comparison Performance of TCP in Wireless Network.- Web-Based Query Processing.- Web Based Question Answering with Aggregation Strategy.- Web Query Refinement without Information Loss.- An Efficient Multidimensional Data Model for Web Usage Mining.- Advanced Query Processing I.- ANNE: An Efficient Framework on View Selection Problem.- Using Relational Database Constraints to Design Materialized Views in Data Warehouses.- Collaborative Filtering Algorithm Based on Mutual Information.- Advanced Query Processing II.- Clustering Data Streams On the Two-Tier Structure.- An Incremental Updating Method for Support Vector Machines.- Spatio-Temporal Reasoning Based Spatio-Temporal Information Management Middleware.- Inter-relevant Successive Trees Model and Its Implementation.- Advanced Applications.- Predicting Typical User Preferences Using Entropy in Content based Collaborative filtering System.- UPnP Home Networking-Based IEEE1394 Digital Home Appliances Control.- A Simple Client-Based Hybrid Robust Hash Routing Web Caching System (2HRCS).- KGTutor: A Knowledge Grid Based Intelligent Tutoring System.- Knowledge Discovery and Pattern Recognition.- An Incremental Updating Technique for Discovering Frequent Traversal Patterns.- A Knowledge-Based Data Model and Query Algebra for the Next-Generation Web.- Conditional Evidence Theory and Its Application in Knowledge Discovery.- An Efficient Method for Quantitative Association Rules to Raise Reliance of Data.- Web Mining.- Web Usage Mining: Sequential Pattern Extraction with a Very Low Support.- CS-Mine: An Efficient WAP-Tree Mining for Web Access Patterns.- Efficient Frequent Pattern Mining on Web Logs.- Data Mining and Data Analysis.- Mining the Predisposing Factor and Co-incident Factor among Numerical Dynamic Attributes in Time Series Data Set.- Query Modification by Discovering Topics from Web Page Structures.- Similarity Pattern Discovery Using Calendar Concept Hierarchy in Time Series Data.- Loss Minimization Based Keyword Distillation.- Text Mining.- Using Maximum Entropy Model for Chinese Text Categorization.- A Comparative Study on Feature Weight in Text Categorization.- User-Focus Based Personalization Recommendation for Text Information Retrieval.- Information Retrieval.- Topic-Structure Based Complementary Information Retrieval for Information Augmentation.- Similarity Retrieval of Web Documents Considering Both Text and Style.- Knowledge Retrieval Using Bayesian Associative Relation in the Three Dimensional Modular System.- User-Oriented Adaptive Web Information Retrieval Based on Implicit Observations.- Web Services and Computing.- High Availability with Clusters of Web Services.- Critical Points for Interactive Schema Matching.- Algorithm for Web Services Matching.- A Grid Middleware for Aggregating Scientific Computing Libraries and Parallel Programming Environments.- Web Safety.- Safe Web Queries.- Specifying Role-Based Access Constraints with Object Constraint Language.- Engineering Safe and Efficient Shareability within Web Systems.- Web Technologies I.- A Comparative Study of Web Application Design Models Using the Java Technologies.- On Reducing Dynamic Web Page Construction Times.- WIEAS: Helping to Discover Web Information Sources and Extract Data from Them.- Aspect Discovery: Web Contents Characterization by Their Referential Contexts.- Web Technologies II.- Web Page Fragmentation and Content Manipulation for Constructing Personalized Portals.- Template-Based Runtime Invalidation for Database-Generated Web Contents.- Clipart Image Retrieval System Using Shape Information.- Web Caching and Moving Objects.- Coordinated En-Route Web Caching in Transcoding Proxies.- Indexing for Efficient Managing Current and …