Package org.apache.tika.parser.ner.opennlp

Class OpenNLPNERecogniser

java.lang.Object

org.apache.tika.parser.ner.opennlp.OpenNLPNERecogniser

All Implemented Interfaces:

NERecogniser

public class OpenNLPNERecogniser
extends Object
implements NERecogniser

This implementation of NERecogniser chains an array of OpenNLPNameFinders for which NER models are available in classpath.

The following models are scanned during initialization via class loader.:

Entity Type	Path
"PERSON"	"ner-person.bin"
"LOCATION"	"ner-location.bin"
"ORGANIZATION"	"ner-organization.bin"
"TIME"	"ner-time.bin"
"DATE"	"ner-date.bin"
"PERCENT"	"ner-percentage.bin"
"MONEY"	"ner-money.bin"

See Also:

• NamedEntityParser.DEFAULT_NER_IMPL

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DATE_FILE
static final Map<String,String>	DEFAULT_MODELS
static final String	LOCATION_FILE
static final String	MODELS_DIR
static final String	MONEY_FILE
static final String	NER_DATE_MODEL
static final String	NER_LOCATION_MODEL
static final String	NER_MONEY_MODEL
static final String	NER_ORGANIZATION_MODEL
static final String	NER_PERCENT_MODEL
static final String	NER_PERSON_MODEL
static final String	NER_TIME_MODEL
static final String	ORGANIZATION_FILE
static final String	PERCENT_FILE
static final String	PERSON_FILE
static final String	TIME_FILE

Fields inherited from interface org.apache.tika.parser.ner.NERecogniser

DATE, LOCATION, MISCELLANEOUS, MONEY, ORGANIZATION, PERCENT, PERSON, TIME

Constructor Summary

Constructors

Constructor	Description
OpenNLPNERecogniser()	Creates a default chain of Name finders using default OpenNLP recognizers
OpenNLPNERecogniser(Map<String,String> models)	Creates a chain of Named Entity recognisers

Method Summary

Modifier and Type	Method	Description
Set<String>	getEntityTypes()	gets a set of entity types whose names are recognisable by this
boolean	isAvailable()	checks if this Named Entity recogniser is available for service
Map<String,Set<String>>	recognise(String text)	call for name recognition action from text

Methods inherited from class java.lang.Object

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

Field Details

MODELS_DIR

public static final String MODELS_DIR

PERSON_FILE

public static final String PERSON_FILE

See Also:

• Constant Field Values

LOCATION_FILE

public static final String LOCATION_FILE

See Also:

• Constant Field Values

ORGANIZATION_FILE

public static final String ORGANIZATION_FILE

See Also:

• Constant Field Values

TIME_FILE

public static final String TIME_FILE

See Also:

• Constant Field Values

DATE_FILE

public static final String DATE_FILE

See Also:

• Constant Field Values

PERCENT_FILE

public static final String PERCENT_FILE

See Also:

• Constant Field Values

MONEY_FILE

public static final String MONEY_FILE

See Also:

• Constant Field Values

NER_PERSON_MODEL

public static final String NER_PERSON_MODEL

NER_LOCATION_MODEL

public static final String NER_LOCATION_MODEL

NER_ORGANIZATION_MODEL

public static final String NER_ORGANIZATION_MODEL

NER_TIME_MODEL

public static final String NER_TIME_MODEL

NER_DATE_MODEL

public static final String NER_DATE_MODEL

NER_PERCENT_MODEL

public static final String NER_PERCENT_MODEL

NER_MONEY_MODEL

public static final String NER_MONEY_MODEL

DEFAULT_MODELS

public static final Map<String,String> DEFAULT_MODELS

Constructor Details

OpenNLPNERecogniser

public OpenNLPNERecogniser()

Creates a default chain of Name finders using default OpenNLP recognizers

OpenNLPNERecogniser

public OpenNLPNERecogniser(Map<String,String> models)

Creates a chain of Named Entity recognisers

Parameters:

models - map of entityType -> model path NOTE: the model path should be known to class loader.

Method Details

isAvailable

public boolean isAvailable()

Description copied from interface: NERecogniser

checks if this Named Entity recogniser is available for service

Specified by:

isAvailable in interface NERecogniser

Returns:

true if this recogniser is ready to recognise, false otherwise

getEntityTypes

public Set<String> getEntityTypes()

Description copied from interface: NERecogniser

gets a set of entity types whose names are recognisable by this

Specified by:

getEntityTypes in interface NERecogniser

Returns:

set of entity types/classes

recognise

public Map<String,Set<String>> recognise(String text)

Description copied from interface: NERecogniser

call for name recognition action from text

Specified by:

recognise in interface NERecogniser

Parameters:

text - text with possibly contains names

Returns:

map of entityType -> set of names