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Gerstner
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Information and Knowledge-Based Systems
Research Topics:
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Information System Software Engineering
OO
programming, IPC, system security, web & mobile technologies, UML, team
development
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Advanced Database Systems
Relational
database design, distributed databases, geographical information, meta-data,
XML
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Data Warehouses
OLAP modeling, data migration, transformation language Sumatra,
implementation strategies, interest group targeting
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Data Mining & KDD
Prediction and planning tasks, intelligent information retrieval and
processing, distributed process supervision
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Decision-Support & Expert Systems
Knowledge
integration rules, probabilistic decision making
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Geographical Information Systems
Fast information retrieval, decision support using spatial indexing
techniques
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Uncertainty Modeling
Incomplete or uncertain data, vague queries, possibility theory, D-S
theory, causal networks
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Knowledge Modeling
Ontologies, OCML language, annotated information search and dynamic narratives generation
Projects:
Current research interests are concentrated to the new EC project
"Enabling Communities of Interest to Promote Heritage of
European Regions (CIPHER)", in the period 2002 -
2004. Its type is IST RTD, Key Action "Heritage for All". Project
tasks include global heritage exploration in virtual Cultural Heritage Forums,
ontology driven dynamic personalized narratives, information visualization,
adaptive delivery to mobile and fixed technologies, collaborative discovery
tools, multilingual access and test case "long common history of Southern
Bohemia and Upper Austria regions".
In the OLAP area our interest is focused on a general
approach to the problem of data warehouse design and updating (a periodical
data gathering, transformation, unification and its addition into a data
warehouse). Mainly the problems of generalized data pump are identified,
studied and solved. The main focus is concentrated on describing and handling
of uncertainty, which comes from merging imperfect data sources. Uncertainty
measures and their implementation approaches are suggested. Our activities are
influenced by the results of the GOAL project - a research project funded by
the European Commission COPERNICUS program. Within the GOAL project, our aim
was to develop an integration module making possible to integrate the data
warehouse with a geographical information system. The GIS systems play both the
role of data source feeding the data warehouse with data and the role of
presentation platform for OLAP analysis. For more detailed information see the
project page: "GOAL - GEOGRAPHIC INFORMATION ON-LINE
ANALYSIS".
In the OLTP area our interest is focused mainly on
information system design and process modeling. The results were applied in a
project developed for Ministry of Culture of Czech Republic (1996-1998): For
more detailed description of this project see the project page: "COMPUTERISED
INVENTORY RECORD KEEPING IN HISTORICAL BUILDINGS". The system developed within this
project aims to handle the whole agenda concerning the care for movable
historical objects like various kinds of arts (china, pictures, arms, curtains,
etc.). The agenda is quite complex - it includes plans of repairs, keeping
track of transfers of inventory items to exhibitions, renting them e.g. to
movie production companies, etc. An important feature of the system is the
supposed automatic identification of inventory items based in the simplest case
on bar code, in more advanced case on radio frequency based methods of
identification.
Academic & Industrial Collaboration:
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Vienna
University of Technology
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The
Open University
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University
of Essen
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Technical
University of Kosice
