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multiplicationLayer

Multiplication layer

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Description

A multiplication layer multiplies inputs from multiple neural network layers element-wise.

Specify the number of inputs to the layer when you create it. The inputs to the layer have the names'in1','in2',...,'inN', whereNis the number of inputs. Use the input names when connecting or disconnecting the layer by usingconnectLayersordisconnectLayers, respectively. The size of the inputs to the multiplication layer must be either same across all dimensions or same across at least one dimension with other dimensions as singleton dimensions.

Creation

Syntax

layer = multiplicationLayer(numInputs)
layer = multiplicationLayer(numInputs,'Name',name)

Description

example

layer= multiplicationLayer(numInputs)creates a multiplication layer that multipliesnumInputsinputs element-wise. This function also sets theNumInputsproperty.

example

layer= multiplicationLayer(numInputs,'Name',name)also sets theNameproperty.

Properties

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Number of inputs to the layer, specified as a positive integer greater than or equal to 2.

The inputs have the names'in1','in2',...,'inN', whereNisNumInputs. For example, ifNumInputsis 3, then the inputs have the names'in1','in2', and'in3'. Use the input names when connecting or disconnecting the layer using theconnectLayersordisconnectLayersfunctions.

Layer name, specified as a character vector or a string scalar. ForLayerarray input, thetrainNetwork,assembleNetwork,layerGraph, anddlnetworkfunctions automatically assign names to layers with name''.

Data Types:char|string

Input names, specified as{'in1','in2',...,'inN'}, whereNis the number of inputs of the layer.

Data Types:cell

This property is read-only.

Number of outputs of the layer. This layer has a single output only.

Data Types:double

This property is read-only.

Output names of the layer. This layer has a single output only.

Data Types:cell

Examples

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Open Live Script

Create a multiplication layer with two inputs and the name'mul_1'.

mul = multiplicationLayer(2,'Name','mul_1')
mul = MultiplicationLayer with properties: Name: 'mul_1' NumInputs: 2 InputNames: {'in1' 'in2'} Learnable Parameters No properties. State Parameters No properties. Show all properties

Create two ReLU layers and connect them to the multiplication layer. The multiplication layer multiplies the outputs from the ReLU layers.

relu_1 = reluLayer('Name','relu_1'); relu_2 = reluLayer('Name',“relu_2”); lgraph = layerGraph(); lgraph = addLayers(lgraph,relu_1); lgraph = addLayers(lgraph,relu_2); lgraph = addLayers(lgraph,mul); lgraph = connectLayers(lgraph,'relu_1','mul_1/in1'); lgraph = connectLayers(lgraph,“relu_2”,'mul_1/in2'); plot(lgraph);

Figure contains an axes object. The axes object contains an object of type graphplot.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

GPU Code Generation
Generate CUDA® code for NVIDIA® GPUs using GPU Coder™.

版本历史

Introduced in R2020b

See Also

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