Abstract. We study hierachical segmentation in the framework of edgeweighted graphs. We define ultrametric watersheds as topological watersheds null on the minima. We prove that t...
Abstract. In [8] we have considered a wide class of “well-behaved” reducibilities for sets of reals. In this paper we continue with the study of Borel reducibilities by proving...
Abstract We prove that Polynomial Calculus and Polynomial Calculus with Resolution are not automatizable, unless W[P]-hard problems are fixed parameter tractable by one-side error...
Predicate abstraction has been proved effective for verifying several infinite-state systems. In predicate abstraction, an abstract system is automatinstructed given a set of predi...
Abstract. Many software model checkers are based on predicate abstraction. If the verification goal depends on pointer structures, the approach does not work well, because it is di...