Ontology Engineering - Ontology Alignment
Many ontologies contain overlapping information. Ontology alignment deals
with finding mappings beween terms in different ontologies.
Results:
Ontology alignment framework and system. Development of framework for
aligning and merging ontologies based on the computation of similarity
values between terms in the source ontologies. Development of an ontology
alignment and merging system (SAMBO). (Winner of the Anatomy track of the 2008 Ontology Alignment Evaluation Initiative.) Development of ontology alignment
strategies.
Evaluation of ontology alignment strategies. Development of framework for
evaluation and comparison of ontology alignment strategies. Development of
an environment for evaluation and comparison of alignment strategies
(KitAMO). (First environment of its kind.) Evaluation of alignment
strategies and systems. (First larger evaluation of algorithms.)
Recommendation of ontology alignment strategies. Development of framework
for recommending ontology alignment strategies. Implementation and
evaluation of different recommendation strategies. (One of the first
approaches for recommendation of strategies.)
Using partial reference alignments (PRA) in ontology alignment.
Development and evaluation of several strategies for using given correct
mappings in ontology alignment: for preprocessing, within matchers, for
filtering. (First approach for using PRA in ontology alignment.)
See also SAMBO and KitAMO and my annotated bibliography.
Ontology Engineering - Ontology debugging
Developing ontologies is not an easy task and often the resulting
ontologies are not consistent or complete.
Such ontologies, although often useful, lead to problems when used in
semantically-enabled applications. Wrong conclusions may be
derived or valid conclusions may be missed. To deal with this
problem we may want to debug the ontologies.
Results:
Method and system for detecting and repairing missing and wrong is-a structure of single ontologies as well as in a network of ontologies.
(First to study debugging missing is-a structure with advanced repairing method.)
Unified approach to debug is-a structure in and mappings between taxonomies.
Development of system RepOSE (Repairing of Ontological Structure Environment).
See also my annotated bibliography.
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