Workshop immediately after VLDB'97
4th International Workshop
KNOWLEDGE REPRESENTATION MEETS DATABASES (KRDB'97):
Intelligent Access to Heterogeneous Information
http://sunsite.informatik.rwth-aachen.de/KRDB97/
August 30, 1997
Athens, Greece
Both databases and knowledge bases are used to represent the relevant
parts of an application domain, and to allow convenient access
to the stored information. Nevertheless, until recently there+
has been little cross-fertilization between the two areas. Research
in KR mostly concentrated on expressive formalism with sophisticated
reasoning services, usually under the assumption that the size of
the KB is relatively small. In contrast, DB research was concerned
with efficiently storing and retrieving large amounts of
data, but the languages for describing schema information were rather
simple, and reasoning about the schema played only a minor role.
In recent years, this distiction between the requirements and problems
in KR and DB is vanishing rapidly. On the one hand, a modern
KR-system must be able to handle large data sets if it is to be
employed in realistic applications. This means that techniques
developed in the DB area can and should be employed. On the other
hand, the information stored in DBs becomes more complex,
and thus requires more intelligent retrieval and reasoning techniques.
The series of annual KRDB workshops was started in 1994 with the
intention to bring together researchers and developers from different
areas of KR and DB where an interaction between the two fields is
promising. Unlike its predecessor workshops, which took place in
conjunction with AI conferences, KRDB'97 is held in conjunction with
the database conference VLDB'97.
In 1997, we intend to focus the discussions at KRDB on the problem of
how to support access to heterogeneous information sources, with
applications like Data Warehousing and Internet Access in mind.
The following is an (incomplete) list of topics that are of interest
in this context:
- What are adequate languages to describe a user's demand for
information and the contents of information sources? Can more
sophisticated schema languages support this task?
- Which kind of reasoning is required to mediate between information
demand and information supply? Can reasoning services from KR
contribute to a solution?
- What background knowledge about an application domain is needed to
formulate and interpret queries over a set of heterogeneous
information sources? Is there a role for ontologies?
- Which is the view that an access tool for a data warehouse should
provide to a user? Should the data warehouse appear as a
relational database, a set of data cubes, a semantic network,
or as a combination of all this?
- What are adequate formalisms for representing and querying meta
data?
- Should contradictions between different information sources be
resolved or is it possible to give meaningful answers to queries
in the presence of contradictions?
- How does incompleteness of information affect system design and
query processing ?
- What are suitable formalisms to represent data quality like
accuracy, timeliness, relevance etc.?
KRDB is a forum for exchanging ideas between DB and KR people. Equally
important is the KRDB tradition of stimulating the discussion between
academic people and practitioners. Thus, we warmly welcome positions
papers from both sides. We are sure that the atmosphere in Athens and
the conjunction with the VLDB conference will contribute to the success.
PARTICIPATION
Participation in the workshop will be by invitation only. If you
want to attend the workshop, you should submit a position paper
(see SUBMISSION OF PAPERS below) that describes your current research
and possibly previous accomplishments related to the workshop topic.
Based on these papers, the participants will be organized into groups
that present their positions and then discuss them in a panel.
Participants are required to register to VLDB'97. Information on
registration to VLDB '97 can be obtained from
http://sunsite.informatik.rwth-aachen.de/VLDB97/
Detailed information on registration to KRDB'97 can be obtained
from
http://sunsite.informatik.rwth-aachen.de/KRDB97/.
SUBMISSION OF PAPERS
Authors are invited to submit position papers not exceeding 4 pages
(1500 words). Rather than describing new technical results, these
papers should describe the position that the author takes w.r.t. the
workshop topics. The position papers will be reviewed with focus on
relevance and potential input to discussions.
Submissions should be sent by April 30, 1997 to
Manfred Jeusfeld
Aachen University of Technology (RWTH)
Informatik 5, 52056 Aachen, Germany
Email: jeusfeld@informatik.rwth-aachen.de
Submissions via Email (Standard Postscript, compressed and uuencoded)
are strongly recommended.
Proceedings of earlier KRDB workshops can be accessed via
http://sunsite.informatik.rwth-aachen.de/Publications/CEUR-WS/
for reference.
PROGRAM COMMITTEE
Alex Borgida, Rutgers University, USA
Mokrane Bouzeghoub, PRISM Paris, France
Georg Lausen, University of Freiburg, Germany
Maurizio Lenzerini, University of Rome 'La Sapienza', Italy
Alon Levy, AT&T Labs, USA
Nicolaas Mars, University of Twente, The Netherlands
Joerg Mueller, Mitsubishi, UK
Mike Papazoglou, University of Tilburg, The Netherlands
Gunter Saake, University of Magdeburg, Germany
ORGANIZATION COMMITTEE
Franz Baader, Aachen University of Technology, Germany
Manfred Jeusfeld, Aachen University of Technology, Germany
Werner Nutt, Hebrew University Jerusalem, Israel
WORKSHOP LOCATION AND REGISTRATION
The workshop will take place in the same hotel as VLDB'97. The hotel
is pleasantly located about 20 km outside of Athens. We require
workshop participants to register to VLDB'97. Hotel booking and
accomodation is also via VLDB'97. Please contact
vldb97@dbnet.ece.ntua.gr or
http://www.dbnet.ece.ntua.gr/VLDB97/
for more information. There are no additional fees for registering
to KRDB'97.
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