NDLI: Evolving 3D virtual creatures through exaptation triggered by environmental change

Content Provider	Springer Nature Link
Author	Asakura, Atsushi Suzuki, Reiji Arita, Takaya
Copyright Year	2015
Abstract	“Exaptation” is a trait originally had been shaped for a particular function or as a byproduct and then came to serve to another. Characters of organisms have been shaped by natural selection while there are many factors that prevent organisms from achieving an optimal design. Exaptation can be considered as an important process to deal with these factors. We approach the process and the mechanism of exaptation triggered by an environmental change using 3D virtual creatures. In the computer experiments, fitness measure is replaced by another as an environmental change in the course of evolution. The results show relatively good performance especially for difficult tasks in the exaptation experiments. The creatures exapted their characters and evolved novel strategies, which were not observed in the experiments without an environmental change. We quantify the complexity of both morphology and behavior and compare the measurements extracted from evolved virtual creatures before and after the environmental change. It is suggested that some virtual creatures exapted their morphology and others exapted their behavior.
Starting Page	244
Ending Page	250
Page Count	7
File Format	PDF
ISSN	14335298
Journal	Artificial Life and Robotics
Volume Number	20
Issue Number	3
e-ISSN	16147456
Language	English
Publisher	Springer Japan
Publisher Date	2015-09-02
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Artificial life Environmental change Exaptation 3D virtual creature Artificial Intelligence (incl. Robotics) Computation by Abstract Devices Control, Robotics, Mechatronics
Content Type	Text
Resource Type	Article
Subject	Artificial Intelligence Biochemistry, Genetics and Molecular Biology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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