Abstract
There is an upsurge in applying fuzzy ontologies to represent vague information in the knowledge representation field. Current research in the fuzzy ontologies paradigm mainly focuses on developing formalism languages to represent fuzzy ontologies, designing fuzzy ontology editors, and building fuzzy ontology applications in different domains. Less focus falls on establishing a formal methodological approach for building fuzzy ontologies. Existing fuzzy ontology development methodologies, such as the IKARUS-Onto methodology and fuzzy ontomethodology, provide formalized schedules for the conversion from crisp ontologies into fuzzy ones. However, a formal guidance on how to build fuzzy ontologies from scratch still lacks in this paper. Therefore, this paper presents the first methodology, named fuzzy ontology development methodology (FODM), for developing fuzzy ontologies from scratch. The proposed FODM can provide a very good guideline for formally constructing fuzzy ontologies in terms of completeness, comprehensiveness, generality, efficiency, and accuracy. To explain how the FODM works and demonstrate its usefulness, a fuzzy seabed characterization ontology is built based on the FODM and described step by step.
Highlights
ONTOLOGY provides a formal and explicit specification of a shared conceptualization [1] and it has become the most promising modelling technique to represent information
The fuzzy ontology development methodology (FODM) could provide a schedule of activities or tasks that need to be performed during the fuzzy ontology development process in terms of completeness, comprehensiveness, generality, and ease of use
Current research on fuzzy ontologies mainly focuses on dealing with conceptual formalisms
Summary
ONTOLOGY provides a formal and explicit specification of a shared conceptualization [1] and it has become the most promising modelling technique to represent information. The FODM can act as a methodology for building crisp ontologies if the target domain or application does not contain any vague or imprecise information. The FODM could provide a schedule of activities or tasks that need to be performed during the fuzzy ontology development process in terms of completeness, comprehensiveness, generality, and ease of use. The proposed FODM is an abstraction of activities for building fuzzy ontologies from scratch It is a subjective methodology in nature. The value of the proposed FODM is the first guidance on how to develop fuzzy ontologies from scratch in a formal way. It could expect an enhancement in the FODM-based development process compared with an intuitive development.
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