Package eu.h2020.helios_social.core.info_control

Class ContextClassifier

java.lang.Object

eu.h2020.helios_social.core.info_control.ContextClassifier

public class ContextClassifier
extends java.lang.Object

ContextClassifier detects context of received message. It uses the @link MultiClassNaiveBayes classifier to classify message text content based on the training data from @link MessageContextDatabase.

See Also:

class, which implements information overload control.

Constructor Summary

Constructors

Constructor	Description
ContextClassifier(MyContexts myContexts)
ContextClassifier(MyContexts myContexts, int maxHistorySize)

Method Summary

Modifier and Type	Method	Description
java.util.List<ContextProbability>	classify(java.lang.String from, java.lang.String topic, java.lang.String text)	Classifies a received message into context classes with probability
void	train(MessageContext messageContext)	Trains the model with a MessageContext as a training sample
void	train(MessageContextRepository repository)	Trains the model with all the MessageContexts in the training database (MessageContextDatabase)
void	train(java.lang.String contextId, java.lang.String from, java.lang.String topic, java.lang.String text)	Trains the model with contextual message information: from, topic and text

Methods inherited from class java.lang.Object

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

Constructor Detail

ContextClassifier

public ContextClassifier(MyContexts myContexts,
                         int maxHistorySize)

ContextClassifier

public ContextClassifier(MyContexts myContexts)

Method Detail

train

public void train(MessageContextRepository repository)

Trains the model with all the MessageContexts in the training database (MessageContextDatabase)

Parameters:

repository - the MessageContextRepository

train

public void train(java.lang.String contextId,
                  java.lang.String from,
                  java.lang.String topic,
                  java.lang.String text)

Trains the model with contextual message information: from, topic and text

Parameters:

contextId -

from -

topic -

text -

train

public void train(MessageContext messageContext)

Trains the model with a MessageContext as a training sample

Parameters:

messageContext -

classify

public java.util.List<ContextProbability> classify(java.lang.String from,
                                                   java.lang.String topic,
                                                   java.lang.String text)

Classifies a received message into context classes with probability

Parameters:

from -

topic -

text -

Returns: