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  "identifier" : "/documentation/Accelerate/BNNS/FullyConnectedLayer",
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# BNNS.FullyConnectedLayer

A layer object that wraps a fully connected filter and manages its deinitialization.

```
class FullyConnectedLayer
```

## Topics

### Creating a Fully Connected Layer

[`convenience init?(input: BNNSNDArrayDescriptor, output: BNNSNDArrayDescriptor, weights: BNNSNDArrayDescriptor, bias: BNNSNDArrayDescriptor?, activation: BNNS.ActivationFunction, filterParameters: BNNSFilterParameters?)`](/documentation/Accelerate/BNNS/FullyConnectedLayer/init(input:output:weights:bias:activation:filterParameters:))

Returns a new fully connected layer.

### Type Methods

[`static func sparsify(batchSize: Int, inputLayout: BNNS.SparseLayout, inputDenseShape: BNNSNDArrayDescriptor, inputValues: BNNSNDArrayDescriptor, output: inout BNNSNDArrayDescriptor, sparseParameters: BNNS.SparseParameters?, workspace: UnsafeMutableRawBufferPointer?, filterParameters: BNNSFilterParameters?) throws`](/documentation/Accelerate/BNNS/FullyConnectedLayer/sparsify(batchSize:inputLayout:inputDenseShape:inputValues:output:sparseParameters:workspace:filterParameters:))

Converts a sparse tensor from a standardized sparse layout to a device-specific sparse layout that Fully Connected uses.

## Relationships

### Inherits From

[`ConvolutionLayer`](/documentation/Accelerate/BNNS/ConvolutionLayer)

---

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