In this paper, we present a stigmergy-based algorithm for solving optimization problems with continuous variables, labeled Differential Ant-Stigmergy Algorithm (DASA). The perfor...
The Busy Beaver is an interesting theoretical problem proposed by Rado in 1962. In this paper we propose an evolutionary approach to this problem. We will focus on the representati...
Penousal Machado, Francisco Baptista Pereira, Am&i...
In this paper, we describe the reengineering of a deteriorated object-oriented industrial program written in C++. The main problem of the program was misplaced code, most often fu...
We describe pictographic naming, a new approach to naming for pen-based computers, in which filenames are pictures rather than ASCII strings. Handwriting recognition (HWX) of a n...
We show that for most complexity classes of interest, all sets complete under rstorder projections (fops) are isomorphic under rst-order isomorphisms. That is, a very restricted v...