Default databases: Extending the approach of deductive databases using default logic
Extending the relational data model using classical logic to give deductive databases has some significant benefits. In particular, classical...
Conceptual language for statistical data modeling
We describe a new language for statistical data modeling. The language offers a general framework for the representation of...
Entity-relationship and object-oriented data modeling – an experimental comparison of design quality
We compare EER and OO data models from the point of view of design quality. Quality is measured in...
Semantic similarity relations and computation in schema integration
Schema integration plays an important part in research areas of heterogeneous information systems and semantic interoperability. How to acquire...
Different roles and mutual dependencies of data, information, and knowledge- An AI perspective on...
The unclear distinction between data, information, and knowledge has impaired their combination and utilization for the development of integrated...
An ontology-based expert system for database design
Although it is possible to encode a great deal of process knowledge about database design into a system, experience...
A logic-based information modelling language
A user-friendly language INFOMOD, intended for information modelling and information systems specification, is described. The language, based on predicate...
Methodologies, tools and languages for building ontologies. Where is their meeting point?
In this paper we review and compare the main methodologies, tools and languages for building ontologies that have been...
Modeling relationships in object-relational databases
We propose an approach for designing an object-relational database. We inspect each case of semantic relationships (one-to-one, one-to-many, many-to-many...
An EREC framework for e-contract modeling, enactment and monitoring
A contract is an agreement between two or more parties to create mutual business relations or legal obligations. It...
