The following publications are possibly variants of this publication:
- Fitness landscapes and problem hardness in genetic programmingLeonardo Vanneschi. gecco 2010: 2711-2738 [doi]
- Fitness Clouds and Problem Hardness in Genetic ProgrammingLeonardo Vanneschi, Manuel Clergue, Philippe Collard, Marco Tomassini, Sébastien Vérel. gecco 2004: 690-701 [doi]
- Negative Slope Coefficient: A Measure to Characterize Genetic Programming Fitness LandscapesLeonardo Vanneschi, Marco Tomassini, Philippe Collard, Sébastien Vérel. eurogp 2006: 178-189 [doi]
- Fitness Distance Correlation And Problem Difficulty For Genetic ProgrammingManuel Clergue, Philippe Collard, Marco Tomassini, Leonardo Vanneschi. gecco 2002: 724-732
- Fitness Distance Correlation in Structural Mutation Genetic ProgrammingLeonardo Vanneschi, Marco Tomassini, Philippe Collard, Manuel Clergue. eurogp 2003: 455-464 [doi]