cat.lump.ir.retrievalmodels.document

Class Fragment

java.lang.Object

cat.lump.ir.retrievalmodels.document.Fragment

All Implemented Interfaces:

java.io.Serializable

public class Fragment
extends java.lang.Object
implements java.io.Serializable

A fragment of text with multiple representations including:

• plain text
• bag of words
• character n-grams

Since:

17 Mar, 2014

Version:

0.1 *

Author:

albarron

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Fragment(Dictionary dictionary, java.lang.String text, java.util.Locale language) Default invocation where all the characterizations are computed
Fragment(Dictionary dictionary, java.lang.String text, java.util.Locale language, boolean includeBow, boolean includeCharNgrams, boolean includeWordNgrams, boolean includePseudoCognates, int N)

Method Summary

Methods

Modifier and Type	Method and Description
java.util.List<java.lang.String>	get(RepresentationType representation)
java.util.Map<java.lang.String,java.lang.Double>	getNormalized(RepresentationType representation)
java.lang.String	getPlain()
java.util.Map<java.lang.String,java.lang.Double>	getWeighted(RepresentationType representation)
int	size(RepresentationType representation)

Methods inherited from class java.lang.Object

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

Constructor Detail

Fragment

public Fragment(Dictionary dictionary,
        java.lang.String text,
        java.util.Locale language)

Default invocation where all the characterizations are computed

Parameters:

dictionary - external dictionary to codify the strings

text -

language -

Fragment

public Fragment(Dictionary dictionary,
        java.lang.String text,
        java.util.Locale language,
        boolean includeBow,
        boolean includeCharNgrams,
        boolean includeWordNgrams,
        boolean includePseudoCognates,
        int N)

Parameters:

dictionary - external dictionary to codify the strings

text -

language -

includeBow - whether BoW representations should be included

includeCharNgrams - whether cNg representations should be included

Method Detail

size

public int size(RepresentationType representation)

Parameters:

representation -

Returns:

Number of terms in the fragment's representation

getPlain

public java.lang.String getPlain()

get

public java.util.List<java.lang.String> get(RepresentationType representation)

Parameters:

representation - Fragment.[CNG,BOW] for the required representation

Returns:

flat list of elements in the representation

getWeighted

public java.util.Map<java.lang.String,java.lang.Double> getWeighted(RepresentationType representation)

Parameters:

representation - Fragment.[CNG,BOW] for the required representation

Returns:

tf-weighted map of elements in the representation

getNormalized

public java.util.Map<java.lang.String,java.lang.Double> getNormalized(RepresentationType representation)

Parameters:

representation - Fragment.[CNG,BOW] for the required representation

Returns:

normalized-tf-weighted map of elements in the representation