AccurateNoiseFilter (StochasticPetriNets)

java.lang.Object
- org.processmining.plugins.filter.noise.AccurateNoiseFilter

```
public class AccurateNoiseFilter
extends java.lang.Object
```
This noise filter adds noise to an event log by randomly removing events and adding events.
It is more accurate than the NoiseLogFilter, because it guarantees that at least floor(N * noise) and maximum ceil(N * noise) events will be affected in each trace. (N being the size of the trace)

Author:

Andreas Rogge-Solti

Field Summary

Fields
Modifier and Type Field Description

protected double deletionInsertionRatio

protected double noise

protected java.util.Random random

Constructor Summary

Constructors
Constructor	Description
`AccurateNoiseFilter(double noise)`
`AccurateNoiseFilter(double noise, double deletionInsertionRatio, long seed)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`getDeletionInsertionRatio()`
`double`	`getNoise()`
`org.deckfour.xes.model.XLog`	`insertNoise(org.deckfour.xes.model.XLog log)`	Inserts noise into the log in each trace.
`void`	`setDeletionInsertionRatio(double deletionInsertionRatio)`
`void`	`setNoise(double noise)`

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

- Field Detail
  - noise
```
protected double noise
```
  - deletionInsertionRatio
```
protected double deletionInsertionRatio
```
  - random
```
protected java.util.Random random
```
- Constructor Detail
  - AccurateNoiseFilter
```
public AccurateNoiseFilter(double noise)
```
  - AccurateNoiseFilter
```
public AccurateNoiseFilter(double noise,
                           double deletionInsertionRatio,
                           long seed)
```
    Parameters:
    
    noise - the amount of noise between 1 (100% noise), 0 (0% noise)
    
    deletionInsertionRatio - value between 1 (only deletion) and 0 (only insertion)
    
    seed - the seed for the random number generator
- Method Detail
  - insertNoise
```
public org.deckfour.xes.model.XLog insertNoise(org.deckfour.xes.model.XLog log)
```
    Inserts noise into the log in each trace.
    
    Parameters:
    
    log - XLog to insert noise into.
    
    Returns:
    
    a XLog that contains noise with deletionInsertionRatio ratio of deleted / inserted events
  - getNoise
```
public double getNoise()
```
  - setNoise
```
public void setNoise(double noise)
```
  - getDeletionInsertionRatio
```
public double getDeletionInsertionRatio()
```
  - setDeletionInsertionRatio
```
public void setDeletionInsertionRatio(double deletionInsertionRatio)
```