Database and Expert Systems Applications

This volume constitutes the proceedings of the 4th
International Conference on Database and Expert Systems
Applications (DEXA), held in Prague, Czech   Republic, in
September 1993.
Traditionally the objective of the DEXA      conferences is to
serve as an international forum for the discussion            and
exchange of research results and practical experinece                           among
theoreticians and professionals working in the field of
database   and artificial intelligence technologies. Despite
the fact that in the         conference title the applications
aspect is mentioned explicitly, the         theoretical and the
practical points of view in the field are well-balanced in
the program of DEXA'93. The growing importance of the
conference      series is outlined by the remarkably high number
of 269 submissions and by   the support given by renown
organizations. DEXA'93 is held for the first      time outside
the former GDR in an East-European country, and                        is
essentially contributing to the advancement of the                                 East-West
scientific cooperation in the field of database and                     AI
systems.
This proceedings contains the 78 contributed                        papers
carefully selected by an international program committee
with thesupport of a high number of subreferees. The volume
is organized in sectionson data models, distributed
databases, advanced database aspects, database   optimization
and performance evaluation, spatial and                                    geographic
databases, expert systems and knowledge engineering,                  legal
systems, other database and artificial intelligence
applications, software engineering, and hypertext/hypermedia
and user interfaces.