PreprocessorSqrtKNNQuery (ELKI: Environment for DeveLoping KDD-Applications Supported by Index-Structures)

java.lang.Object
- elki.database.query.knn.PreprocessorKNNQuery
- - elki.database.query.knn.PreprocessorSqrtKNNQuery

All Implemented Interfaces:

elki.database.query.knn.KNNSearcher<elki.database.ids.DBIDRef>
```
public class PreprocessorSqrtKNNQuery
extends PreprocessorKNNQuery
```
Use the square rooted values of precomputed kNN.

Since:

0.4.0

Author:

Erich Schubert

Field Summary

Fields
Modifier and Type Field Description

private static elki.logging.Logging LOG
Class logger
- Fields inherited from class elki.database.query.knn.PreprocessorKNNQuery
  relation

Constructor Summary

Constructors
Constructor	Description
`PreprocessorSqrtKNNQuery(elki.database.relation.Relation<?> relation, AbstractMaterializeKNNPreprocessor<?> preprocessor)`	Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`elki.database.ids.KNNList`	`getKNN(elki.database.ids.DBIDRef id, int k)`
`protected elki.logging.Logging`	`getLogger()`	Get the class logger.

Methods inherited from class elki.database.query.knn.PreprocessorKNNQuery
getPreprocessor

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

- Field Detail
  - LOG
```
private static final elki.logging.Logging LOG
```
    Class logger
- Constructor Detail
  - PreprocessorSqrtKNNQuery
```
public PreprocessorSqrtKNNQuery(elki.database.relation.Relation<?> relation,
                                AbstractMaterializeKNNPreprocessor<?> preprocessor)
```
    Constructor.
    
    Parameters:
    
    relation - Relation to query
    
    preprocessor - Preprocessor instance to use
- Method Detail
  - getKNN
```
public elki.database.ids.KNNList getKNN(elki.database.ids.DBIDRef id,
                                        int k)
```
    Specified by:
    
    getKNN in interface elki.database.query.knn.KNNSearcher<elki.database.ids.DBIDRef>
    
    Overrides:
    
    getKNN in class PreprocessorKNNQuery
  - getLogger
```
protected elki.logging.Logging getLogger()
```
    Get the class logger. Override when subclassing!
    
    Overrides:
    
    getLogger in class PreprocessorKNNQuery
    
    Returns:
    
    Class logger.