Beyond the Paradise Built in Hell

Ontology Contraction: Beyond the Propositional Paradise

The dynamic nature of ontology development has motivated the formal study of ontology evolution problem. This paper addresses contraction —the problem of retracting information that should no longer hold in an ontology. We survey existing model and formula based semantics to contraction and investigate their properties for the description logics DL-Lite and EL, which underpin the QL and EL prof...

Pack hunting by minute soil testate amoebae: nematode hell is a naturalist's paradise.

Paradise SQL Queries Result Paradise Tuples Paradise Client Process Paradise

This paper describes the design and implementation of Paradise, a database system designed for handling GIS type of applications. The current version of Paradise, uses a client{server architecture and provides an extended{relational data model for modeling GIS applications. Paradise supports an extended version of SQL and provides a graphical user interface for querying and browsing the databas...

The Road to Hell

My concern in this paper is a distinction most commonly associated with the Doctrine of the Double Effect (DDE). Elizabeth Anscombe claims that the denial of the DDE "has been the corruption of non-Catholic thought, and its abuse the corruption of Catholic thought." Many other philosophers, on the other hand, regard the DDE as not just wrong, but also wildly implausible. Some would even say tha...

Spreadsheet Hell

This management paper looks at the real world issues faced by practitioners managing spreadsheets through the production phase of their life cycle. It draws on the commercial experience of several developers working with large corporations, either as employees or consultants or contractors. It provides commercial examples of some of the practicalities involved with spreadsheet use around the en...