Authors:
Isabel Cristina Siqueira da Silva
1
and
Carla Maria Dal Sasso Freitas
2
Affiliations:
1
UFRGS, Centro Universitário Ritter dos Reis and UNIRITTER, Brazil
;
2
UFRGS, Brazil
Keyword(s):
Visualization, Ontology, Interaction.
Related
Ontology
Subjects/Areas/Topics:
Abstract Data Visualization
;
Computer Vision, Visualization and Computer Graphics
;
General Data Visualization
;
Interface and Interaction Techniques for Visualization
;
Visualization Applications
Abstract:
Ontologies are used for sharing among people or software agents the common understanding of the information structure in a certain domain. Usually, ontologies are represented as static 2D graphs where the relationships are displayed as edges, which often overlap and cause cognitive overload. Three-dimensional representations can also lead to confusion due to occlusion. Moreover, as the ontology grows, incorporating new concepts (and their relationships) increases the visualization complexity either in 2D or in 3D. In this paper, we present a study about the requirements of visualization and interaction with ontologies. In order to do that, we interviewed with four experts on ontology creation and use. From the results, we propose the design of a 2.5D visualization tool for exploring relationships between ontology concepts.