Owing to its inherent difficulty, many heuristic solution methods have been proposed for the capacitated minimum spanning tree problem. On the basis of recent developments, it is clear that the best metaheuristic implementations outperform classical heuristics. Unfortunately, they require long...

Phillip's repertory grid data on children's perception of designed objects had been collected during an experiment devised within Kelly's personal construct theory. Some of the data returned by the children cannot be processed by the techniques usually applied to repertory grids. The slicing...