30th International Conference on
Very Large Data Bases
Royal York Hotel
29 August - 3 September 2004
Toronto, Canada






VLDB 2004 marks the 30th anniversary of the premier international forum for database researchers, vendors, practitioners, application developers, and users. We invite submissions reporting original results on all aspects of data management as well as proposals for panels, tutorials, demonstrations, and exhibits that will present the most critical issues and views on practical leading-edge database technology, applications, and techniques. We also invite proposals for events and workshops that may take place at the Conference site before or after VLDB 2004.


VLDB 2004 invites submissions on new contributions in the field of data management, including novel usage of data management technology. VLDB 2004 strongly encourages the submission of creative work that goes beyond improvements of already known results. Submissions may cover novel approaches in data management, visions that present new viewpoints and challenges, or a description of the implementation or deployment of advanced database technology in an industrial or application setting. Furthermore, since new challenging applications appear on the horizon, papers that describe those with respect to their technical substance, their impact, and their importance and relate them to today's database technology are also solicited.

VLDB 2004 will continue the recently adopted policy of broadening the range of topics covered at the conference beyond core database system technology and to address novel approaches rather than dwelling on incremental improvements of existing results. Consequently, VLDB 2004 will be organized into three tracks, each with its own Program Committee (PC):

· Core Database System Technology
· Infrastructure for Information Systems
· Industrial Applications & Experience

The Core Database Technology PC will evaluate papers that report on technology that is meant to be incorporated in the database system itself. This includes database engine functions, such as query languages, data models, query processing, views, integrity constraints, triggers, access methods, and transactions in centralized, distributed, replicated, parallel, mobile, and wireless environments. It also includes extended data types, such as multimedia, spatial and temporal data, and system engineering issues, such as performance, high availability, security, manageability, and ease-of-use. Papers on all aspects of active and object databases, storage technology, and data management system architecture should be submitted to the Core Database Technology PC.

The PC covering Infrastructure for Information Systems will evaluate papers that report on methods, issues, and problems faced during the design, development and deployment of innovative solutions for information management. It also covers middleware and tools that exploit database technology, but are typically not part of a database system itself. Examples include workflow, advanced transaction processing features, application servers, object monitors, services in support of E-commerce, mediators and other web-oriented data facilities, metadata repositories, data and process modeling, web services, user interfaces and data visualization, data translation and migration, data cleaning, multi-agent systems, and system management. Papers on topics others than those mentioned which cover the area of Infrastructure for Information Systems are also welcome.

The PC on Industrial Applications & Experience solicits submissions covering innovative commercial database implementations, novel applications of database technology, and experience in applying recent research advances to practical situations. Such papers should describe innovative implementations, new approaches to fundamental challenges (such as very large scale or semantic complexity), or major technical improvements to the state-of-the-practice. Our objective is to challenge people from industry to articulate the unsolved problems they face or encounter when they apply DB technology in their environments. The papers should communicate the challenges which members of the DB community should address more aggressively. The track is VLDB's way to foster the exchange of ideas and solutions between research and industry. Application areas include those of Bioinformatics/Life Science, Engineering, Mobile Systems, Enterprise Resource Planning (ERP), and other areas all of which pose technical challenges to the field of data management.

Industrial application & experience submissions may be either full papers whose technical density is comparable to research submissions or extended abstracts.

In some cases, material might cut across more than one of the tracks, and indeed we strongly encourage papers that pursue some of the ties between them. Examples include data mining, web-related work, and XML. We leave it up to the discretion of the authors to which PCs they submit their paper depending on the prevailing contribution. If in doubt, we suggest to contact one of the PC chairpersons. The program committee reserves the right to move papers between the PC's to ensure the fairest possible evaluation.