de.tudarmstadt.ukp.dkpro.core.mallet.lda

Class MalletLdaTopicModelInferencer

java.lang.Object

org.apache.uima.analysis_component.AnalysisComponent_ImplBase

org.apache.uima.analysis_component.Annotator_ImplBase

org.apache.uima.analysis_component.JCasAnnotator_ImplBase

org.apache.uima.fit.component.JCasAnnotator_ImplBase

de.tudarmstadt.ukp.dkpro.core.mallet.lda.MalletLdaTopicModelInferencer

All Implemented Interfaces:

org.apache.uima.analysis_component.AnalysisComponent

public class MalletLdaTopicModelInferencer
extends org.apache.uima.fit.component.JCasAnnotator_ImplBase

Infers the topic distribution over documents using a Mallet ParallelTopicModel.

Field Summary

Fields

Modifier and Type	Field and Description
static String	PARAM_BURN_IN The number of iterations before hyperparameter optimization begins.
static String	PARAM_LOWERCASE If set to true (default: false), all tokens are lowercased.
static String	PARAM_MAX_TOPIC_ASSIGNMENTS Maximum number of topics to assign.
static String	PARAM_MIN_TOKEN_LENGTH Ignore tokens (or lemmas, respectively) that are shorter than the given value.
static String	PARAM_MIN_TOPIC_PROB Minimum topic proportion for the document-topic assignment.
static String	PARAM_MODEL_LOCATION
static String	PARAM_N_ITERATIONS The number of iterations during inference.
static String	PARAM_THINNING
static String	PARAM_TOKEN_FEATURE_PATH The annotation type to use for the model.
static String	PARAM_TYPE_NAME The annotation type to use as tokens.

Constructor Summary

Constructors

Constructor and Description
MalletLdaTopicModelInferencer()

Method Summary

Modifier and Type	Method and Description
void	initialize(org.apache.uima.UimaContext context)
void	process(org.apache.uima.jcas.JCas aJCas)

Methods inherited from class org.apache.uima.fit.component.JCasAnnotator_ImplBase

getLogger

Methods inherited from class org.apache.uima.analysis_component.JCasAnnotator_ImplBase

getRequiredCasInterface, process

Methods inherited from class org.apache.uima.analysis_component.Annotator_ImplBase

getCasInstancesRequired, hasNext, next

Methods inherited from class org.apache.uima.analysis_component.AnalysisComponent_ImplBase

batchProcessComplete, collectionProcessComplete, destroy, getContext, getResultSpecification, reconfigure, setResultSpecification

Methods inherited from class java.lang.Object

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

Field Detail

PARAM_MODEL_LOCATION

public static final String PARAM_MODEL_LOCATION

See Also:

Constant Field Values

PARAM_TYPE_NAME

public static final String PARAM_TYPE_NAME

The annotation type to use as tokens. Default: Token

See Also:

Constant Field Values

PARAM_N_ITERATIONS

public static final String PARAM_N_ITERATIONS

The number of iterations during inference. Default: 100.

See Also:

Constant Field Values

PARAM_BURN_IN

public static final String PARAM_BURN_IN

The number of iterations before hyperparameter optimization begins. Default: 1

See Also:

Constant Field Values

PARAM_THINNING

public static final String PARAM_THINNING

See Also:

Constant Field Values

PARAM_MIN_TOPIC_PROB

public static final String PARAM_MIN_TOPIC_PROB

Minimum topic proportion for the document-topic assignment.

See Also:

Constant Field Values

PARAM_MAX_TOPIC_ASSIGNMENTS

public static final String PARAM_MAX_TOPIC_ASSIGNMENTS

Maximum number of topics to assign. If not set (or <= 0), the number of topics in the model divided by 10 is set.

See Also:

Constant Field Values

PARAM_TOKEN_FEATURE_PATH

public static final String PARAM_TOKEN_FEATURE_PATH

The annotation type to use for the model. Default: de.tudarmstadt.ukp.dkpro.core.api.segmentation.type.Token. For lemmas, use de.tudarmstadt.ukp.dkpro.core.api.segmentation.type.Token/lemma/value

See Also:

Constant Field Values

PARAM_MIN_TOKEN_LENGTH

public static final String PARAM_MIN_TOKEN_LENGTH

Ignore tokens (or lemmas, respectively) that are shorter than the given value. Default: 3.

See Also:

Constant Field Values

PARAM_LOWERCASE

public static final String PARAM_LOWERCASE

If set to true (default: false), all tokens are lowercased.

See Also:

Constant Field Values

Constructor Detail

MalletLdaTopicModelInferencer

public MalletLdaTopicModelInferencer()

Method Detail

initialize

public void initialize(org.apache.uima.UimaContext context)
                throws org.apache.uima.resource.ResourceInitializationException

Specified by:

initialize in interface org.apache.uima.analysis_component.AnalysisComponent

Overrides:

initialize in class org.apache.uima.fit.component.JCasAnnotator_ImplBase

Throws:

org.apache.uima.resource.ResourceInitializationException

process

public void process(org.apache.uima.jcas.JCas aJCas)
             throws org.apache.uima.analysis_engine.AnalysisEngineProcessException

Specified by:

process in class org.apache.uima.analysis_component.JCasAnnotator_ImplBase

Throws:

org.apache.uima.analysis_engine.AnalysisEngineProcessException