edu.stanford.nlp.ie

Class ChineseQuantifiableEntityNormalizer

java.lang.Object

edu.stanford.nlp.ie.ChineseQuantifiableEntityNormalizer

public class ChineseQuantifiableEntityNormalizer
extends java.lang.Object

A Chinese correspondence of the QuantifiableEntityNormalizer that normalizes NUMBER, DATE, TIME, MONEY, PERCENT and ORDINAL amounts expressed in Chinese. Note that this class is originally designed for the Chinese KBP Challenge, so it only supports minimal functionalities. This needs to be completed in the future.

Author:

Yuhao Zhang, Peng Qi

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	BACKGROUND_SYMBOL

Method Summary

Modifier and Type	Method and Description
static <E extends CoreMap> void	addNormalizedQuantitiesToEntities(java.util.List<E> list, CoreMap document, CoreMap sentence) Identifies contiguous MONEY, TIME, DATE, or PERCENT entities and tags each of their constituents with a "normalizedQuantity" label which contains the appropriate normalized string corresponding to the full quantity.
static java.lang.String	normalizeDateString(java.lang.String s, java.lang.String ctxdate) Normalizes date strings.

Methods inherited from class java.lang.Object

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

Field Detail

BACKGROUND_SYMBOL

public static java.lang.String BACKGROUND_SYMBOL

Method Detail

addNormalizedQuantitiesToEntities

public static <E extends CoreMap> void addNormalizedQuantitiesToEntities(java.util.List<E> list,
                                                                         CoreMap document,
                                                                         CoreMap sentence)

Identifies contiguous MONEY, TIME, DATE, or PERCENT entities and tags each of their constituents with a "normalizedQuantity" label which contains the appropriate normalized string corresponding to the full quantity. Unlike the English normalizer, this method currently does not support concatenation or SUTime.

Type Parameters:

E -

Parameters:

list - A list of CoreMaps representing a single document. Note: We assume the NERs has been labelled and the labels will be updated in place.

document -

sentence -

normalizeDateString

public static java.lang.String normalizeDateString(java.lang.String s,
                                                   java.lang.String ctxdate)

Normalizes date strings.

Parameters:

s - Input date string

ctxdate - Context date (usually doc_date)

Returns:

Normalized Timex expression of the input date string