---
title: reduction
framework: accelerate
role: symbol
role_heading: Instance Property
path: accelerate/bnnslayerparameterslosssigmoidcrossentropy/reduction
---

# reduction

The function that’s used to reduce the computed loss.

## Declaration

```swift
var reduction: BNNSLossReductionFunction
```

## See Also

### Instance Properties

- [function](accelerate/bnnslayerparameterslosssigmoidcrossentropy/function.md)
- [i_desc](accelerate/bnnslayerparameterslosssigmoidcrossentropy/i_desc.md)
- [o_desc](accelerate/bnnslayerparameterslosssigmoidcrossentropy/o_desc.md)
- [label_smooth](accelerate/bnnslayerparameterslosssigmoidcrossentropy/label_smooth.md)