ITA
2008
13 years 7 months ago
2008
We prove that there exists a structure M whose monadic second order theory is decidable, and such that the elementary theory of every expansion of M by a constant is undecidable. 1...
CSL
2006
Springer
13 years 11 months ago
2006
Springer
Rational graphs are a family of graphs defined using labelled rational transducers. Unlike automatic graphs (defined using synchronized transducers) the first order theory of these...
SEMWEB
2009
Springer
14 years 2 months ago
2009
Springer
We present a method to measure the amount of structural distortion carried by an alignment between two taxonomic cores of ontologies represented as semantic hierarchies. We present...