NiN (Deep Java Library 0.22.0 - model-zoo API)

java.lang.Object
- ai.djl.basicmodelzoo.cv.classification.NiN

```
public final class NiN
extends java.lang.Object
```
NiN uses convolutional layers with window shapes of 11×11 , 5×5 , and 3×3 , and the corresponding numbers of output channels are the same as in AlexNet. Each NiN block is followed by a maximum pooling layer with a stride of 2 and a window shape of 3×3 .
The conventional convolutional layer uses linear filters followed by a nonlinear activation function to scan the input.
NiN model from the "Network In Network" http://arxiv.org/abs/1312.4400 paper.

See Also:

The D2L chapter on NiN

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class NiN.Builder
The Builder to construct a NiN object.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static NiN.Builder`	`builder()`	Creates a builder to build a `NiN`.
`static ai.djl.nn.Block`	`niN(NiN.Builder builder)`	The NiN block consists of one convolutional layer followed by two 1×1 convolutional layers that act as per-pixel fully-connected layers with ReLU activations.
`ai.djl.nn.SequentialBlock`	`niNBlock(int numChannels, ai.djl.ndarray.types.Shape kernelShape, ai.djl.ndarray.types.Shape strideShape, ai.djl.ndarray.types.Shape paddingShape)`	Creates a constituent NiN block that becomes a part of the whole NiN model.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - niN
```
public static ai.djl.nn.Block niN(NiN.Builder builder)
```
    The NiN block consists of one convolutional layer followed by two 1×1 convolutional layers that act as per-pixel fully-connected layers with ReLU activations. The convolution width of the first layer is typically set by the user. The subsequent widths are fixed to 1×1.
    
    Parameters:
    
    builder - the NiN.Builder with the necessary arguments.
    
    Returns:
    
    a NiN block.
  - builder
```
public static NiN.Builder builder()
```
    Creates a builder to build a NiN.
    
    Returns:
    
    a new builder
  - niNBlock
```
public ai.djl.nn.SequentialBlock niNBlock(int numChannels,
                                          ai.djl.ndarray.types.Shape kernelShape,
                                          ai.djl.ndarray.types.Shape strideShape,
                                          ai.djl.ndarray.types.Shape paddingShape)
```
    Creates a constituent NiN block that becomes a part of the whole NiN model.
    
    Parameters:
    
    numChannels - the number of channels in a NiN block.
    
    kernelShape - kernel Shape in the 1st convolutional layer of a NiN block.
    
    strideShape - stride Shape in a NiN block.
    
    paddingShape - padding Shape in a NiN block.
    
    Returns:
    
    a constituent niN block.