edu.mit.jmwe.detect

Class InflectionLookup

java.lang.Object

edu.mit.jmwe.detect.HasMWEDetector

edu.mit.jmwe.detect.InflectionLookup

All Implemented Interfaces:

IHasMWEDetector, IMWEDetector, IMWEDetectorFilter

public class InflectionLookup
extends HasMWEDetector
implements IMWEDetectorFilter

Uses a given MWE detector to find multi-word expressions in a sentence but discards inflected multi-word expressions whose form is not listed as a valid inflected form by its associated IMWEDesc.

Since:

jMWE 1.0.0

Version:

$Id: InflectionLookup.java 356 2015-11-25 22:36:46Z markaf $

Author:

N. Kulkarni, M.A. Finlayson

Constructor Summary

Constructors

Constructor and Description
InflectionLookup(IMWEDetector d) Constructs the detector from the given backing detector.

Method Summary

Modifier and Type	Method and Description
<T extends IToken> java.util.List<IMWE<T>>	detect(java.util.List<T> sentence) Given a list of tokens, the detector searches for the MWEs in the list.
static <T extends IToken> IInfMWEDesc	getSurfaceFormDescription(IRootMWEDesc root, IMWE<T> mwe) Returns a multi-word expression description with a lemma that is constructed by concatenating the tokens of the MWE exactly as they appear in the sentence with underscores.

Methods inherited from class edu.mit.jmwe.detect.HasMWEDetector

getWrappedDetector

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.mit.jmwe.detect.IHasMWEDetector

getWrappedDetector

Constructor Detail

InflectionLookup

public InflectionLookup(IMWEDetector d)

Constructs the detector from the given backing detector.

Parameters:

d - the IMWEDetector that will be used to back this detector. May not be null.

Throws:

java.lang.NullPointerException - if the backing detector is null

Since:

jMWE 1.0.0

Method Detail

detect

public <T extends IToken> java.util.List<IMWE<T>> detect(java.util.List<T> sentence)

Description copied from interface: IMWEDetector

Given a list of tokens, the detector searches for the MWEs in the list. It returns a set of IMWE objects representing these multi-word expressions. The method returns an empty list if no MWEs are found; the method should never return null.

Specified by:

detect in interface IMWEDetector

Overrides:

detect in class HasMWEDetector

Type Parameters:

T - the type of the tokens in the sentence

Parameters:

sentence - a sentence which the detector should search for multi-word expressions.

Returns:

a list of IMWE objects representing the multi-word expressions found in the sentence. Returns an empty list if no multi-word expressions are found; never returns null

getSurfaceFormDescription

public static <T extends IToken> IInfMWEDesc getSurfaceFormDescription(IRootMWEDesc root,
                                                                       IMWE<T> mwe)

Returns a multi-word expression description with a lemma that is constructed by concatenating the tokens of the MWE exactly as they appear in the sentence with underscores.

Type Parameters:

T - the type of token

Parameters:

root - the cognizant root

mwe - the multi-word expression used to construct the description object

Returns:

the description of the given MWE with a lemma that is constructed by concatenating the tokens of the MWE exactly as they appear in the sentence, preserving inflection rather than using the base form as the lemma.

Since:

jMWE 1.0.0