Higher-order Representation and Reasoning for Automated Ontology Evolution

Abstract: The GALILEO system aims at realising automated ontology evolution. This is necessary to enable intelligent agents to manipulate their own knowledge autonomously and thus reason and communicate effectively in open, dynamic digital environments characterised by the heterogeneity of data and of representation languages. Our approach is based on patterns of diagnosis of faults detected across multiple ontologies. Such patterns allow to identify the type of repair required when conflicting ontologies yield erroneous inferences. We assume that each ontology is locally consistent, i.e. inconsistency arises only across ontologies when they are merged together. Local consistency avoids the derivation of uninteresting theorems, so the formula for diagnosis can essentially be seen as an open theorem over the ontologies. The system’s application domain is physics; we have adopted a modular formalisation of physics, structured by means of locales in Isabelle, to perform modular higher-order reasoning, and visualised by means of development graphs.

Directivity of low frequency solar type 3 radio bursts

The occurrence rate of type 3 solar bursts in the frequency range 4.9 MHz to 30 kHz was analyzed as a function of burst intensity and burst arrival direction. Results show that: (1) the occurrence rate of bursts falls off with increasing flux and (2) the distribution of burst arrival directions at each frequency shows a significantly larger number of bursts observed west of the earth-sun line than east of it. This western excess in occurrence rate appears to be correlated with the direction of the average interplanetary magnetic field, and is interpreted as beaming of the observed burst radiation along the magnetic field direction

Meta-Level Inference and Program Verification

In [Bundy and Sterling 81] we described how meta-level inference was useful for controlling search and deriving control information in the domain of algebra. Similar techniques are applicable to the verification of logic programs. A developing meta-language is described, and an explicit proof plan using this language is given. A program, IMPRESS, is outlined which executes this plan

The use of data-mining for the automatic formation of tactics

This paper discusses the usse of data-mining for the automatic formation of tactics. It was presented at the Workshop on Computer-Supported Mathematical Theory Development held at IJCAR in 2004. The aim of this project is to evaluate the applicability of data-mining techniques to the automatic formation of tactics from large corpuses of proofs. We data-mine information from large proof corpuses to find commonly occurring patterns. These patterns are then evolved into tactics using genetic programming techniques

The administration of the Illyrian provinces of the French Empire, 1809-1813

The Illyrian Provinces are one of the most obscure and neglected areas of the Napoleonic Empire. Although they are mentioned by almost every work dealing with the period of the First Empire, few deal with them in depth. Because of this dearth of material, an attempt has been made in compiling the bibliography to include all those works pertinent to a study of the history of the Illyrian Provinces

Magical Realism and the Space Between Spaces

Magical realism comes from Franz Roh, a german art historian and critic, who first used the term to describe the Post-Expressionism movement in visual art. His seminal writings and definitions on Post-Expressionism, then known as magical realism, were translated into Spanish and made available to Latin America in the mid twentieth century. Authors like Jorge Luis Borges and Gabriel Garcia Marquez adopted Roh\u27s writings and re-appropriated magical realism into literary art, and from there the new genre proliferated through the Latin American Boom and magical realism in literary fiction reached global recognition, inspiring authors across the world to take it up and continue the tradition into the present