Package opennlp.tools.formats.ad

Klasse ADChunkSampleStream

java.lang.Object

opennlp.tools.formats.ad.ADChunkSampleStream

Alle implementierten Schnittstellen:

AutoCloseable, ObjectStream<ChunkSample>

@Internal
public class ADChunkSampleStream
extends Object
implements ObjectStream<ChunkSample>

Parser for Floresta Sita(c)tica Arvores Deitadas corpus, output to for the Portuguese Chunker training.

The heuristic to extract chunks where based o paper 'A Machine Learning Approach to Portuguese Clause Identification', (Eraldo Fernandes, Cicero Santos and Ruy Milidiú).

Data can be found on this web site.

Information about the format:
Susana Afonso. "Árvores deitadas: Descrição do formato e das opções de análise na Floresta Sintáctica".
12 de Fevereiro de 2006.

Detailed info about the NER tagset.

Note: Do not use this class, internal use only!

Feldübersicht

Felder

Modifizierer und Typ	Feld	Beschreibung
static final String	OTHER

Konstruktorübersicht

Konstruktoren

Konstruktor	Beschreibung
ADChunkSampleStream(InputStreamFactory in, String charsetName)	Instantiates a ADChunkSampleStream stream from an InputStreamFactory.
ADChunkSampleStream(ObjectStream<String> lineStream)	Instantiates a ADChunkSampleStream stream from ObjectStream<String>, that could be a PlainTextByLineStream object.

Methodenübersicht

Modifizierer und Typ	Methode	Beschreibung
void	close()	Closes the ObjectStream and releases all allocated resources.
static String	convertFuncTag(String t, boolean useCGTags)
ChunkSample	read()	Returns the next ObjectStream object.
void	reset()	Repositions the stream at the beginning and the previously seen object sequence will be repeated exactly.
void	setEnd(int aEnd)
void	setStart(int aStart)

Von Klasse geerbte Methoden java.lang.Object

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

Felddetails

OTHER

public static final String OTHER

Siehe auch:

• Konstantenfeldwerte

Konstruktordetails

ADChunkSampleStream

public ADChunkSampleStream(ObjectStream<String> lineStream)

Instantiates a ADChunkSampleStream stream from ObjectStream<String>, that could be a PlainTextByLineStream object.

Parameter:

lineStream - An ObjectStream<String> as input.

ADChunkSampleStream

public ADChunkSampleStream(InputStreamFactory in,
 String charsetName)
                    throws IOException

Instantiates a ADChunkSampleStream stream from an InputStreamFactory.

Parameter:

in - The InputStreamFactory for the corpus.

charsetName - The charset to use for reading of the corpus.

Löst aus:

IOException

Methodendetails

read

public ChunkSample read()
                 throws IOException

Beschreibung aus Schnittstelle kopiert: ObjectStream

Returns the next ObjectStream object. Calling this method repeatedly until it returns null will return each object from the underlying source exactly once.

Angegeben von:

read in Schnittstelle ObjectStream<ChunkSample>

Gibt zurück:

The next object or null to signal that the stream is exhausted.

Löst aus:

IOException - Thrown if there is an error during reading.

convertFuncTag

public static String convertFuncTag(String t,
 boolean useCGTags)

setStart

public void setStart(int aStart)

setEnd

public void setEnd(int aEnd)

reset

public void reset()
           throws IOException,
UnsupportedOperationException

Beschreibung aus Schnittstelle kopiert: ObjectStream

Repositions the stream at the beginning and the previously seen object sequence will be repeated exactly. This method can be used to re-read the stream if multiple passes over the objects are required.

The implementation of this method is optional.

Angegeben von:

reset in Schnittstelle ObjectStream<ChunkSample>

Löst aus:

IOException - Thrown if there is an error during resetting the stream.

UnsupportedOperationException - Thrown if the reset() is not supported. By default, this is the case.

close

public void close()
           throws IOException

Beschreibung aus Schnittstelle kopiert: ObjectStream

Closes the ObjectStream and releases all allocated resources. After close was called, it's not allowed to call ObjectStream.read() or ObjectStream.reset().

Angegeben von:

close in Schnittstelle AutoCloseable

Angegeben von:

close in Schnittstelle ObjectStream<ChunkSample>

Löst aus:

IOException - Thrown if there is an error during closing the stream.