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The Twelfth International World Wide Web Conference 
20-24 May 2003, Budapest, HUNGARY 

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WF1 - E-Services and the Semantic Web

Despite often working on similar topics and goals, the artificial intelligence and agent communities have been somewhat separate from those of databases and information systems. This lack of interaction causes members of one community to be unaware of the problems, results, trials, and errors that originated in the others. Indeed, e-service development draws on research and technology from all of these research communities. A key objective of this workshop is to provide a forum that fosters collaboration and synergies among all e-service researchers. The workshop will expose systems-oriented e-services researchers to the approaches and technologies being developed by the Semantic Web e-services community, and will likewise expose Semantic Web e-services researchers to the full breadth of systems issues raised by e-services, thereby enabling researchers to leverage ideas and results coming from research groups that have heterogeneous backgrounds but common goals. This multidisciplinary nature of the workshop is also reflected in the composition of the organizing and program committee, that include members of all the communities mentioned above.

Specifically, the "E-Services and the Semantic Web" workshop will provide a forum for presentation and discussion of theoretical foundations, computational techniques, and emerging systems technologies for e-service description, discovery, and composition. This will include investigation of e-services issues in:

  • the application of the Semantic Web paradigm to e-services
  • workflow and distributed systems (e.g., process models for e-services, transactional properties, security, optimization)
  • AI (e.g., knowledge representation and reasoning, ontologies, planning, and verification)
  • databases (e.g., metadata, data management)

The workshop will also address principled applications of these technologies in areas such as e-commerce, e-business, health care, scientific computing, education, and e-government.


Fabio Casati is a senior researcher at HP Labs, Palo Alto. He got his PhD from Politecnico di Milano (Italy) in 1999. His research interests include workflows, Web services, and business activity management. He is author of more than 50 papers in international conferences and journals, and has served as organizer and program committee member in several conferences. In particular, he has been involved in the majority of workshops and conferences on Web services coming from the database and information systems communities, such as VLDB, TES, and CoopIS. He has also served as guest editor in three journal special issues on the same theme.

Dimitris Plexousakis is an Associate Professor of Computer Science at the Computer Science Department of the Universtity of Crete, Greece and a Researcher at the Information Systems Lab of the Institute of Computer Science of the Foundation of Research and Technology - Hellas. He holds a B.Sc. in Computer Science from the University of Crete and M.Sc. and Ph.D. degress in Computer Science from the University of Toronto. Prior to joining the faculty of the University of Crete he was an Assistant Professor at Kansas State University and the University of South Florida. He is a member of ACM and IEEE. His research interests include data and knowledge base management, workflow and business process management systems, peer-to-peer and grid-based systems, applications of AI in data management, metadata management and query languages for the Semantic Web. He is an active participant in the OntoWeb and Planet Networks of Excellence. He served as the co-chair of the 1st International Workshop on the Semantic Web and a member of the steering committee of the subsequent workshops in this series, including ESSW02. He also serves (with Sheila McIlraith) as the Workshops co-Chair for the 2nd International Conference on the Semantic Web, that will take place in Florida, USA in October 2003.

For more details please visit: Workshop web site


WF2 - Algorithms and Models for the Web-Graph

The World Wide Web has become part of our everyday life and information retrieval and data mining on the web is now of enormous practical interest. Some of the algorithms supporting these activities are based substantially on viewing the web as a graph, induced in various ways by links among pages, links among hosts, or other similar networks.

The aim of the 2003 Workshop on Algorithms for the Web-Graph (WAW 2003) is to further the understanding of these web-induced graphs, and stimulate the development of high-performance algorithms and applications that use the graph structure of the web.

Topics of interest include but are not limited to:

  • Mathematical and physical models for the web
  • Algorithms for analyzing the web graph
  • Modification of classic graph algorithms to bring them to web scale
  • Representation and compression of the web graph
  • Topology generators
  • Graph oriented statistical sampling of the web
  • Practical algorithmic techniques
  • Application of web graph algorithms to information retrieval on the web, data mining, etc.
  • Crawling as a graph search process
  • Empirical studies and issues

Many contributed papers presented in past editions of WWW belong to some of these topics and therefore we expect this workshop to be of interest to a fair number of WWW attendees.



Andrei Broder is an IBM Distinguished Engineer in the Research Division of IBM working on search technology and knowledge management applications. His main research interests are the design, analysis, and implementation of probabilistic algorithms and supporting data structures, in particular in the context of web-scale information retrieval and applications.

Prabhakar Raghavan is Vice President and Chief Technology Officer at Verity, Inc. and Consulting Professor of Computer Science at Stanford University.  He was previously at IBM Research, where he worked on algorithms, data and web mining, optimization and information retrieval, including the HITS and Clever projects at IBM Almaden.

Bela Bollobas is Professor of Department of Mathematical Sciences at the University of Memphis. His research interest are functional analysis and combinatorics.

For more details please visit: Workshop Web site


WF3 - Semantics in Peer-to-Peer and Grid Computing

The Semantic Web is widely accepted as a means to enhance the Web with machine processable content. Several workshops dealt with the development of techniques and technologies for representing and using information with formally specified semantics on the Web. However, mostly the Semantic Web is aiming at techniques and technologies for static information, in contrast to dynamic services or distributed computing, which is the topic of several interest groups, which are working on infrastructure for enabling distributed computing. These efforts are in part top-down organized efforts, involving multiple formal organizations and dedicated projects, and bottom-up efforts, sometimes started by single organizations or individuals in a grassroots effort.

The Grid, a top-down effort, is aiming at technologies which allow the flexible, secure, coordinated resource sharing among dynamic collections of individuals, institutions, and resources, enabling virtual organizations. Problems encountered include authentication, authorization, resource access, resource discovery, and interoperation of active services. The same problems are eminent in the Peer-to-Peer (P2P) area, where projects are typically organized in a bottom-up fashion. Reusable infrastructures like SUN's JXTA are emerging, attracting numerous applications based once these infrastructures appear. However, each application uses its own data format, and it is hard to see how applications should interoperate. A related area is Web Services: driven by industry efforts numerous specifications are developed, which are of interest for the Grid projects as well as for the Peer-to-Peer efforts. Although there is an agreement that Web Services would benefit from more semantics, little systematic research has been done on the problem of how to combine the notion the Semantic Web with Web Services, Peer-to-Peer and Grid computing.

The main topic of this workshop will be the relationship between Semantic Web, Grid computing and Peer-to-Peer efforts, and how developed technologies in one area can advance another area. More specifically, workshop topics include:

  • Scalable infrastructures for service discovery in Grid computing and P2P networks, e.g., based on reconfiguration of the network with respect to shared interests or shared ontologies
  • Interoperation infrastructure for enabling heterogeneous peers to exchange and translate information
  • Incrementally learning and evolution of ontologies in a distributed computing environment.
  • Metadata infrastructures for P2P and Grid computing
  • Task ontologies and service composition languages
  • How can Semantic Web services benefit from being Grid Services.

The workshop will be organized in part around talks presenting research result in the intersection of the Semantic Web, P2P and Grid computing. Another important part of the workshop will be break-out groups, focusing on the amalgamation of Semantic Web and distributed computing. We hope the break-out groups will evolve into independent working groups and generate follow-up activities, which contribute to the technology areas.  The proceedings will be published on the Web and a workshop report will summarize the outcome of the break out groups.



Karl Aberer is full professor for distributed information systems at the department of communication systems, EPFL. His research interest are Information Commerce, Decentralized Information Systems and Use of Economic Principles for Information Management.

Stefan Decker works as a Computer Scientist at the Information Sciences Institute. His main research interest are the Semantic Web; adding semantics to the Web with XML and RDF; ontology based access to information; combining and managing semantical heterogenous information.

David De Roure David De Roure is a Professor of Computer Science in the Intelligence Agents Multimedia Research Group in the Electronics and Computer Science, University of Southampton, UK, where he researches large scale adaptive information systems - especially grid and pervasive computing systems.

Carole Goble Carole Goble is a Professor in the Department of Computer Science in the University of Manchester. She is the co-leader of the Information Management Group, founded in 1997. Her research interests are centred around the accessibility of information, particularly the use of terminological and ontological services for the representation and classification of metadata in a number of application domains.

For more details please visit: Workshop web site


WF4 - (Virtual) Community Informatics: Support for Local and Virtual Communities

Community Informatics is the study of information and communications technology to support communities and their processes. This includes achieving community objectives, such as overcoming "digital divides", and supporting community-based IT/ICT-enabled initiatives in community economic development, health, environmental and sustainable development, community-focused learning and civic engagement and social justice. Community Informatics traditionally has been applied to "local" communities in a particular local geographical area. Virtual communities are concerned with creating and sustaining on-line "communities of interest", gaming communities, among others. Communities of Practice are virtual communities focusing on sharing knowledge among peers within organizations. Virtual communities, by definition, depend on technology, but often only use limited tool sets to support specific types of interaction.

(Virtual) Community Informatics lies at two cross-roads: (a) bringing together people concerned with Local Communities, Virtual Communities and Communities of Practice; and (b) bringing together the researchers and practitioners (developers, leaders and participants) in these three domains. (Virtual) Community Informatics promotes the cross-fertilization found at this cross-roads, bringing together researchers and practitioners from many varied disciplines.

The workshop will focus on opportunities and techniques to support both virtual and local communities, as well as communities of practice. Practitioners building and participating within communities are welcome, as are those building tools and process support for communities, as well as researchers.


Michael Gurstein has worked in the area of Community Informatics for many years, publishing journal articles and books on the Internet and community access issues. He has conducted research in the field for several years. From 1996 to 1999 he was Director of the Centre for Community Enterprise Networking in Sydney, Nova Scotia. Michael holds a Ph.D. from Cambridge University. Previously he was Associate Professor of Management and Technology and Director of the Centre for Community Informatics at the Technical University of British Columbia. He currently is a visiting Full Professor at the New Jersey Institute of Technology, where he is establishing a program in Community Informatics.

For more details please visit: Workshop web site


WF5 - Adaptive hypermedia and adaptive web-based systems

In 2003 the adaptive hypermedia workshop will focus on adaptation engineering. Each part of the workshop will approach this problem from a different perspective, starting with the enabling technologies for realizing adaptation engineering at WWW 2003, discussing issues with respect to user modelling (as the main driving part of adaptive applications) at UM 2003, and finally presenting various ways of constructing adaptive hypermedia at HyperText 03. The three sessions will feature joint proceedings, published on the Web at http://wwwis.win.tue.nl/ah2003/, and also as a TU/e Computer Science Report.

Papers that report experimental results, research reviews, case studies, and theoretical frameworks on adaptation engineering within the following list of application areas are especially welcome:

  • education
  • e-commerce, web services
  • e-health
  • games and entertainment
  • e-news
  • culture, museums
  • law
  • workflow management
  • wireless and mobility

All contributions should fit into the following list of topics, in order to enable focused discussions during the workshop sessions.


Paul de Bra is (full) Professor at the Computer Science Department of the
Eindhoven University of Technology. He is (co-)author of about 80 publications, among which 3 books.

WF7 - Emerging Applications for Wireless and Mobile access

The objective of this workshop is to provide a single forum for researchers and technologists to discuss the state-of-the-art, present their contributions, and set future directions in emerging innovative applications for mobile wireless access. The workshop will consist of technical papers, panel discussions, invited talks and demonstrations of research prototypes. Topics of interest for technical papers include, but are not limited to the following:

  • Security of mobile applications
  • Mobile middleware platforms
  • Mobile multimedia applications
  • Mobile enterprise applications
  • Location Aware Services and Applications
  • Peer-to-peer mobile computing
  • Hybrid applications that seamlessly transfer between cellular and wireless LAN systems
  • Emerging standards and transition issues
  • Robustness and Quality of Service (QoS) issues
  • Performance studies of mobile applications
Technical paper submission deadlines: March 15th, 2003.
Acceptance notifications: March 30th, 2003
Submissions by email to
Contacts:  Dr. Charles J Petrie, petrie@snrc.stanford.edu
Dr. Rittwik Jana, rjana@research.att.com


Dr. Charles Petrie is Senior Research Scientist at the Stanford Center for Information Technology in the Computer Science Department, working on the FX-Agents Project. Topic: Virtual Enterprises using web services and agents.

Dr. Rittwik Jana is Principal Member Technical Staff at the AT&T Labs Research. He has been working in the area of mobile and wireless communications for ten years covering aspects from physical layer modem design to application layer software development. His primary expertise fall in the areas of radio resource management, mobile service platform design and ultra wideband channel modeling.

For more details please visit: Workshop web site


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