The "Jeff Yoshimi" logo is interactive. It's based on Simbrain Web, a partial port of Simbrain to javascript by Yulin Li. You can grab and move the nodes, change their activation, add new nodes, etc. right in the browser. This post shows a few examples. Note that this simplified interface differs in some way from the Simbrain interface. Here are some key commands you can use:
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space Iterate network (when paused)
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P Place a new neuron at the last clicked location.
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del Delete selected elements.
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N Select all neurons.
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W Select all weights.
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A Select all nodes and weights.
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C Clear node activations.
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up Increase selected node activations or weight strengths.
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down Decrease selected node activations or weight strengths.
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shift Select multiple neurons. Allows dragging multiple nodes.
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1 Mark selected neurons as source.
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2 Connect source neurons to selected neurons.
- Lasso-select some nodes and press up to add more bursts of activation.
- N then R to randomize all nodes.
- W then R to randomize all weights.
- Select nodes, 1 then 2 to connect nodes. Most recurrent connections lead the whole sign to "fill up".
- Refresh browser to start over at any time