Towards an Ontological Modeling with Dependent Types: Application to Part-Whole Relations
Generally, mereological relations are modeled using fragments of first-order logic(FOL) and difficulties arise when meta-reasoning is done over their...
Inducing Metaassociations and Induced Relationships
In the last years, UML has been tailored to be used as a domain-specific modelling notation in several contexts....
Tractable Query Answering over Conceptual Schemata
We address the problem of answering conjunctive queries over extended Entity-Relationship schemata, which we call EER (Extended ER) schemata,...
A Semantic Approach for the Modeling of Trajectories in Space and Time
The modeling and analysis of trajectories in space and time have been long a domain of social science studies...
Query-By-Keywords (QBK): Query Formulation Using Semantics and Feedback
The staples of information retrieval have been querying and search, respectively, for structured and unstructured repositories. Processing queries over...
Thirty Years of ER Conferences: Milestones, Achievements, and Future Directions
This paper describes the milestones/achievements in the past 30 years and the future directions for the Entity-Relationship (ER) Conferences...
Cluster-Based Exploration for Effective Keyword Search over Semantic Datasets
The amount of data available in the Web, in databases as well as other systems, is constantly increasing as...
A Frame Manipulation Algebra for ER Logical Stage Modelling
The ER model is arguably today’s most widely accepted basis for the conceptual specification of information systems. A further...
Geometrically Enhanced Conceptual Modelling
Motivated among others by the need to support spatial modelling for the sustainable land use initiative we present a...
Conceptual Modeling in the Time of the Revolution: Part II
Conceptual Modeling was a marginal research topic at the very fringes of Computer Science in the 60s and 70s,...
