dorsal/arxiv
View SchemaEvolution of differentiated expression patterns in digital organisms
| Authors | Charles Ofria, Christoph Adami, Travis C. Collier, Grace K. Hsu |
|---|---|
| Categories | |
| ArXiv ID | physics/0002054 |
| URL | https://arxiv.org/abs/physics/0002054 |
| Journal | Lect. Notes Artif. Intell. 1674 (1999) 129-138 |
Abstract
We investigate the evolutionary processes behind the development and optimization of multiple threads of execution in digital organisms using the avida platform, a software package that implements Darwinian evolution on populations of self-replicating computer programs. The system is seeded with a linearly executed ancestor capable only of reproducing its own genome, whereas its underlying language has the capacity for multiple threads of execution (i.e., simultaneous expression of sections of the genome.) We witness the evolution to multi-threaded organisms and track the development of distinct expression patterns. Additionally, we examine both the evolvability of multi-threaded organisms and the level of thread differentiation as a function of environmental complexity, and find that differentiation is more pronounced in complex environments.
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"abstract": "We investigate the evolutionary processes behind the development and\noptimization of multiple threads of execution in digital organisms using the\navida platform, a software package that implements Darwinian evolution on\npopulations of self-replicating computer programs. The system is seeded with a\nlinearly executed ancestor capable only of reproducing its own genome, whereas\nits underlying language has the capacity for multiple threads of execution\n(i.e., simultaneous expression of sections of the genome.) We witness the\nevolution to multi-threaded organisms and track the development of distinct\nexpression patterns. Additionally, we examine both the evolvability of\nmulti-threaded organisms and the level of thread differentiation as a function\nof environmental complexity, and find that differentiation is more pronounced\nin complex environments.",
"arxiv_id": "physics/0002054",
"authors": [
"Charles Ofria",
"Christoph Adami",
"Travis C. Collier",
"Grace K. Hsu"
],
"categories": [
"physics.bio-ph",
"cs.NE",
"q-bio.PE"
],
"journal_ref": "Lect. Notes Artif. Intell. 1674 (1999) 129-138",
"title": "Evolution of differentiated expression patterns in digital organisms",
"url": "https://arxiv.org/abs/physics/0002054"
},
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