Diffusion-Aggregation Model

Computational models of crystal growth that produce rough overall symmetry but fail to explain the detailed identical sub-symmetries on snowflake arms

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Findings (1)

finding

The nearly identical detailed sub-symmetries and sub-sub-symmetries on all six arms of individual snow crystals are not explained by any present diffusion-aggregation model.
associated_with
Key finding establishing a gap in current morphogenetic explanation that Alexander's principle addresses

Related by similarity (8)

cosine ≥ 0.65 · no typed edge

Entities in the same semantic neighborhood but without a typed relation to this one — candidates for new edges or unrecognized duplicates.

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diffusion-reaction modelconcept0.841
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Diffusion Models for Materialsconcept0.816
Class of generative models adapted for molecular and materials design; MatterGen is an example.
Turing Reaction Diffusion Modelframework0.754
GED model (growth, exchange, and distribution)framework0.745
Mean-field theory model describing phase transitions in wealth distribution with economic growth.
Autoregressive modelsframework0.741
Second model system studied; used to show why flat autoregressive LLMs struggle with long-range coherence.
World Model (statistical)concept0.736
The joint distribution over events in the world that generate observed data; the proposed endpoint of representational convergence
Bayesian Model Averagingconcept0.730
Predictions formed by averaging over policy-specific beliefs, weighted by policy probabilities.