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AI agents evolve complex structures without fitness functions

Researchers have developed a new platform called Genesis that allows for the evolution of self-organizing agents without relying on a designer-specified fitness function. Through three experimental cycles, they demonstrated that evolutionary activity can be sustained by physical constraints alone, though it reaches a complexity ceiling. Agent-mediated niche construction proved insufficient to overcome this limit. However, by replacing the traditional genome with a Compositional Pattern Producing Network (CPPN) indirect encoding and employing NEAT-style speciation, the system showed the first signs of progressive structural complexification in a fitness-free environment. AI

IMPACT This research explores novel methods for AI agent evolution, potentially leading to more autonomous and complex AI systems.

RANK_REASON Academic paper detailing a novel approach to agent evolution. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.NE (Neural & Evolutionary) →

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AI agents evolve complex structures without fitness functions

COVERAGE [1]

  1. arXiv cs.NE (Neural & Evolutionary) TIER_1 English(EN) · Anushka Sharma ·

    Evolving Self-Organising Agents Without Fitness: Three Falsifiable Experiments from Constraint-Driven Selection to Developmental Encoding

    Can evolutionary dynamics characteristic of biological development arise without a designer-specified fitness function? We present Genesis, a platform in which agents inhabit a Gray-Scott reaction-diffusion substrate and evolve under physical constraints alone. Three successive e…