Where are Bottlenecks in NK Fitness Landscapes?
- Authors
- Type
- Published Article
- Publication Date
- Jul 04, 2007
- Submission Date
- Jul 04, 2007
- Identifiers
- DOI: 10.1109/CEC.2003.1299585
- Source
- arXiv
- License
- Unknown
- External links
Abstract
Usually the offspring-parent fitness correlation is used to visualize and analyze some caracteristics of fitness landscapes such as evolvability. In this paper, we introduce a more general representation of this correlation, the Fitness Cloud (FC). We use the bottleneck metaphor to emphasise fitness levels in landscape that cause local search process to slow down. For a local search heuristic such as hill-climbing or simulated annealing, FC allows to visualize bottleneck and neutrality of landscapes. To confirm the relevance of the FC representation we show where the bottlenecks are in the well-know NK fitness landscape and also how to use neutrality information from the FC to combine some neutral operator with local search heuristic.
