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Takashi Ikegami

3 papers indexed

arxivcs.NE2026-07-17

Transient State Reorganization and Cell Differentiation in the Developmental Dynamics of Growing Neural Cellular Automata

Hiroki Sato, Atsushi Masumori, Takashi Ikegami

Growing Neural Cellular Automata (GNCA) develop complex morphologies from a single seed cell through shared local rules, yet the internal dynamics of this process remain poorly understood. To investigate how GNCA grows, the full developmental trajectory of trained GNCA models was…

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arxivcs.NEnlin.AOnlin.CG2026-07-14

Structured Fluctuations and the Information Dynamics of Self-Maintenance in Growing Neural Cellular Automata

Atsushi Masumori, Hiroki Sato, Takashi Ikegami

Growing Neural Cellular Automata (GNCA) are capable of robust self-maintenance and self-repair, yet the internal dynamical mechanisms that support these capabilities remain poorly understood. Here, we investigate the role of internal fluctuations--temporal micro-variability of hi…

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arxivcs.AI2026-06-30

OpenLife: Toward Open-World Artificial Life with Autonomous LLM Agents

Atsushi Masumori, Itsuki Doi, Norihiro Maruyama, Ryosuke Takata, Takashi Ikegami

Artificial life has explored life-like behavior on many computational substrates, but mostly in researcher-designed closed worlds. We argue that large language model (LLM) agents, with persistent memory, tool use, network access, and payment, now make it possible to move artifici…

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