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---
license: mit
tags:
- neuroscience
- connectomics
---
Random forest models trained on heat kernel signature (HKS) features to predict the compartment target of a synapse on neuronal meshes.
Method is described in more detail in [Pedigo et al. bioRxiv 2026](https://www.biorxiv.org/content/10.64898/2026.02.19.706834v1).
The feature generation pipeline used here can be found in the [meshmash repo](https://github.com/bdpedigo/meshmash/blob/7395e0d8d3b0e3fb23069761961eb7055b7b9700/src/meshmash/pipeline.py#L389).
The parameters for that function are in `parameters.toml`.
`synapse_hks_model.joblib` takes in the 32 HKS features generated by that pipeline, as well as a column of the distance from each point to the postsynaptic nucleus.
The model outputs predictions for {"spine", "shaft", "soma"} targets. This is the model used in the paper.
`simple_hks_model.joblib` uses only the HKS features and outputs {"spine", "not_spine"} labels.
Please see the paper above for much more detail on the performance of the classifier and its application. Questions and comments are more than welcome: ben.pedigo@alleninstitute.org.