MXNet (.json,.params)

Underlying format of the MXNet deep learning framework, used by the Wolfram Language.
Translation is performed automatically between the low-level layers used by MXNet and corresponding high-level layers used by the Wolfram Language.
The mapping between Wolfram Language layers and MXNet layers is not always invertible.
MXNet nets are saved as separate .json files, specifying the network topology, and .params files, specifying the numeric arrays used in the network. The Wolfram Language will automatically look for an appropriate .params file when loading a .json file.
By default, Import and Export use the "JSON" format for files ending in .json, rather than the "MXNet" format.

Background

▪ Import and Export both support the MXNet file format.

Import["file.json","MXNet"] imports the MXNet network saved as a .json file, loading weights from a corresponding .params file if available. The parameter file corresponding to "file.json" is assumed to match the pattern "file*.params" and be located in the same folder.
Import["file.json",{"MXNet",elem}] imports the net with the specified element elem.
Import["file.params","MXNet"] imports the MXNet parameter file saved as a .params file as an association of weights.
Import["file.params",{"MXNet",elem}] imports the parameter file with the specified element elem.
Export["file.json",net,"MXNet"] exports a trained neural network as a .json file and a corresponding .params file.

	"InputNames"	names of the net inputs
	"LayerAssociation"	list of rules for options, properties and settings
	"Net"	import the net as a NetGraph or NetChain
	"NodeDataset"	dataset of MXNet symbol nodes
	"NodeGraph"	graph of nodes of MXNet symbol
	"NodeGraphPlot"	plot of nodes of MXNet symbol
	"UninitializedNet"	import the net without any parameters

	"ArrayAssociation"	import the parameter arrays as an association
	"ArrayList"	import the parameter arrays as a list
	"ArrayNames"	the names of the parameter arrays
	"RawArrayAssociation"	import the parameter arrays as a RawArray association
	"RawArrayList"	import the parameter arrays as a RawArray list

Import option:
"ArrayPath" Automatic path to the MXNet parameter file
Export options:
"ArrayPath" Automatic path to save the parameter arrays to

"SaveArrays" True whether to export the net parameter arrays