Package org.apache.solr.client.solrj.io.eval

Class CosineSimilarityEvaluator

java.lang.Object

org.apache.solr.client.solrj.io.eval.RecursiveEvaluator

org.apache.solr.client.solrj.io.eval.RecursiveNumericEvaluator

org.apache.solr.client.solrj.io.eval.CosineSimilarityEvaluator

All Implemented Interfaces:

Serializable, StreamEvaluator, TwoValueWorker, ValueWorker, Expressible

public class CosineSimilarityEvaluator
extends RecursiveNumericEvaluator
implements TwoValueWorker

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected static final long	serialVersionUID

Fields inherited from class org.apache.solr.client.solrj.io.eval.RecursiveEvaluator

constructingFactory, containedEvaluators, nodeId, streamContext

Constructor Summary

Constructors

Constructor	Description
CosineSimilarityEvaluator(StreamExpression expression, StreamFactory factory)

Method Summary

Modifier and Type	Method	Description
static double	cosineSimilarity(double[] vectorA, double[] vectorB)
Object	doWork(Object first, Object second)

Methods inherited from class org.apache.solr.client.solrj.io.eval.RecursiveNumericEvaluator

normalizeInputType

Methods inherited from class org.apache.solr.client.solrj.io.eval.RecursiveEvaluator

evaluate, getStreamContext, normalizeOutputType, recursivelyEvaluate, setStreamContext, toExplanation, toExpression

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.solr.client.solrj.io.eval.StreamEvaluator

evaluateOverContext

Methods inherited from interface org.apache.solr.client.solrj.io.eval.TwoValueWorker

doWork

Field Details

serialVersionUID

protected static final long serialVersionUID

See Also:

• Constant Field Values

Constructor Details

CosineSimilarityEvaluator

public CosineSimilarityEvaluator(StreamExpression expression,
 StreamFactory factory)
                          throws IOException

Throws:

IOException

Method Details

doWork

public Object doWork(Object first,
 Object second)
              throws IOException

Specified by:

doWork in interface TwoValueWorker

Throws:

IOException

cosineSimilarity

public static double cosineSimilarity(double[] vectorA,
 double[] vectorB)