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Published in:
2010 | OriginalPaper | Chapter
On the Benefits of Aging and the Importance of Details
Authors : Thomas Jansen, Christine Zarges
Published in: Artificial Immune Systems
Publisher: Springer Berlin Heidelberg
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Aging is a concept that is used in many artificial immune system implementations. It is an important tool that helps to cope with multi-modal problems by increasing diversity and allowing to restart the search in different parts of the search space. The current theoretical understanding of the details of aging is still very limited. This holds with respect to parameter settings, the relationship of different variants, the specific mechanisms that make aging useful, and implementation details. While implementation details seem to be the least important part they can have a surprisingly huge impact. This is proven by means of theoretical analysis for a carefully constructed example problem as well as thorough experimental investigations of aging for this problem.