---
title: BNNS.LossReduction
framework: accelerate
role: symbol
role_heading: Enumeration
path: accelerate/bnns/lossreduction
---

# BNNS.LossReduction

An enumeration that describes loss reduction functions.

## Declaration

```swift
enum LossReduction
```

## Topics

### Loss Reduction Functions

- [BNNS.LossReduction.none](accelerate/bnns/lossreduction/none.md)
- [BNNS.LossReduction.reductionMean](accelerate/bnns/lossreduction/reductionmean.md)
- [BNNS.LossReduction.sum](accelerate/bnns/lossreduction/sum.md)
- [BNNS.LossReduction.weightedMean](accelerate/bnns/lossreduction/weightedmean.md)
- [BNNS.LossReduction.zeroWeightMean](accelerate/bnns/lossreduction/zeroweightmean.md)

### Instance Properties

- [bnnsLossReductionFunction](accelerate/bnns/lossreduction/bnnslossreductionfunction.md)

## Relationships

### Conforms To

- [Equatable](swift/equatable.md)
- [Escapable](swift/escapable.md)
- [Hashable](swift/hashable.md)