opennlp.tools.doccat

Interface DocumentCategorizer

All Known Implementing Classes:

DocumentCategorizerME

public interface DocumentCategorizer

Interface for classes which categorize documents.

Method Summary

Modifier and Type	Method and Description
double[]	categorize(String[] text) Categorizes the given text, provided in separate tokens.
double[]	categorize(String[] text, Map<String,Object> extraInformation) Categorize the given text provided as tokens along with the provided extra information
String	getAllResults(double[] results) get the name of the category associated with the given probabilties
String	getBestCategory(double[] outcome) get the best category from previously generated outcome probabilities
String	getCategory(int index) get the category at a given index
int	getIndex(String category) get the index of a certain category
int	getNumberOfCategories() get the number of categories
Map<String,Double>	scoreMap(String[] text) Returns a map in which the key is the category name and the value is the score
SortedMap<Double,Set<String>>	sortedScoreMap(String[] text) Get a map of the scores sorted in ascending aorder together with their associated categories.

Method Detail

categorize

double[] categorize(String[] text,
                    Map<String,Object> extraInformation)

Categorize the given text provided as tokens along with the provided extra information

Parameters:

text - the tokens of text to categorize

extraInformation - extra information

Returns:

per category probabilities

categorize

double[] categorize(String[] text)

Categorizes the given text, provided in separate tokens.

Parameters:

text - the tokens of text to categorize

Returns:

per category probabilities

getBestCategory

String getBestCategory(double[] outcome)

get the best category from previously generated outcome probabilities

Parameters:

outcome - a vector of outcome probabilities

Returns:

the best category String

getIndex

int getIndex(String category)

get the index of a certain category

Parameters:

category - the category

Returns:

an index

getCategory

String getCategory(int index)

get the category at a given index

Parameters:

index - the index

Returns:

a category

getNumberOfCategories

int getNumberOfCategories()

get the number of categories

Returns:

the no. of categories

getAllResults

String getAllResults(double[] results)

get the name of the category associated with the given probabilties

Parameters:

results - the probabilities of each category

Returns:

the name of the outcome

scoreMap

Map<String,Double> scoreMap(String[] text)

Returns a map in which the key is the category name and the value is the score

Parameters:

text - the input text to classify

Returns:

a map with the score as a key. The value is a Set of categories with the score.

sortedScoreMap

SortedMap<Double,Set<String>> sortedScoreMap(String[] text)

Get a map of the scores sorted in ascending aorder together with their associated categories. Many categories can have the same score, hence the Set as value

Parameters:

text - the input text to classify

Returns:

a map with the score as a key. The value is a Set of categories with the score.