Guest Editorial

Guest Editorial The VLDB Journal (1998) 7: 129 The VLDB Journal c Springer-Verlag 1998 The 23rd International Conference on Very Large Data Bases The efficient implementation of large-scale object-ori- was held in a beautiful peninsula near Athens, Greece, Au- ented databases still presents many problems. One of them gust 26–29, 1997. is the issue of garbage collection, i.e. the reclaiming of un- From 335 submissions in the research paper track, 53 referenced memory. The fourth paper, “Garbage collection were selected for presentation at the conference. Within the in object-oriented databases using transactional cyclic refer- team of program sub-chairs, we selected some of the most ence counting” by P. Roy, S. Seshadri, A. Silberschatz, S. highly ranked papers whose authors were invited to sub- Sudarshan and S. Ashwin, provides a promising new solu- mit expanded and updated versions of their paper for pub- tion. lication in this Special Issue of the VLDB Journal. After The last paper, by Wee Teck Ng and Peter Chen, “Inte- re-reviewing and some further revisions, the following five grating reliable memory in databases”, is a bit more futuris- papers were accepted. tic with respect to database architectures. Even though this A major theme of the conference were the challenges integration would require major changes in present-day com- posed by multimedia to database technology. Three papers mercial databases and is thus certainly not around the corner address this theme. in practice, the authors show significant potential for fu- The first paper, “Enhanced abstract data types in ob- ture DBMS in terms of reliability handling and performance ject relational database” by Praveen Seshadri, criticizes that improvement. This paper received the best paper award at current ADT concepts in object-relational databases are too VLDB 97. closed to allow efficient support for multi-media content. Thanks are due first of all to the authors and program His extension allows an ADT to expose some of its method committee members whose diligence in revising and review- semantics at the interface in order to facilitate query opti- ing made it possible to publish this Special Issue within mization. a year. The attractive conference environment, made even In a complementary approach, “Integrated document more attractive through the efforts of a perfect local organi- caching and prefetching in storage hierarchies based on sation under the chairpersons Yannis Vassiliou, Timos Sellis, Markov chain predictions” by Achim Kraiss and Gerhard John Mylopoulos, and Nick Roussopoulos, certainly helped Weikum develops an integrated vertical data migration strat- to attract so many excellent submissions. The program com- egy between primary, secondary, and tertiary storage to im- mittee sub-chairs, Mike Carey, Klaus Dittrich, Fred Lo- prove the trade-off between storage costs and accessibility chovsky, and Peri Loucopoulos coordinated not only the pa- of multimedia databases. per selection for the conference but also the pre-selection The third paper, “Scalable feature selection, classifi- for this special issue. cation and signature generation for organizing large text databases into hierarchical topic taxonomies” by Soumen Aachen, June 1998 Chakrabarthi, Byron Dom, Rakesh Agrawal and Prabhakar Raghavan, looks at a special case of multimedia databases, Matthias Jarke text databases, from the viewpoint of query interfaces. They VLDB 97 Program Chair offer contextualized and annotated query responses based on subject domain taxonomies and analysis of the present user situation in a text network. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The VLDB Journal Springer Journals

Guest Editorial

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Publisher
Springer-Verlag
Copyright
Copyright © 1998 by Springer-Verlag Berlin Heidelberg
Subject
Computer Science; Database Management
ISSN
1066-8888
eISSN
0949-877X
D.O.I.
10.1007/s007780050058
Publisher site
See Article on Publisher Site

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