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Citation

Frowd CD, Park J, McIntyre AH, Bruce V, Pitchford M, Fields S, Kenirons M & Hancock PJB (2008) Effecting an improvement to the fitness function. How to evolve a more identifiable face. In: Proceedings BLISS 2008 - 2008 ECSIS Symposium on Bio-inspired, Learning, and Intelligent Systems for Security. BLISS '08. ECSIS Symposium on Bio-inspired Learning and Intelligent Systems for Security, 2008, Edinburgh, 04.08.2008-06.08.2008. Los Alamitos, CA, USA: IEEE Computer Science Society Press, pp. 3-10. http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4595787&abstractAccess=no&userType=inst; https://doi.org/10.1109/BLISS.2008.28

Abstract
Constructing the face of a criminal from the selection of individual facial parts is a hard task. We have been working on a new system called EvoFIT that involves the selection and breeding of complete faces. The approach is theoretically better founded and produces more identifiable composites than those from a traditional 'feature' system. In the current paper, we explored three new methods of presenting faces to a person using EvoFIT. A better quality face was evolved if (1) the external parts of the face were subjected to a Gaussian blur, allowing a user to focus on the important inner region of the face, (2) if the faces were simplified to make them sketch-like in appearance, and (3) if users took longer in deciding which faces to select for breeding. Taken together, these approaches would appear to make a marked improvement in the ability to evolve an identifiable likeness of a target.