de.spieleck.app.cngram
Class NGramProfiles

java.lang.Object
  de.spieleck.app.cngram.NGramProfiles

public class NGramProfiles
extends java.lang.Object

Manage a set of profiles and determine "most similar" ones to a given profile. Allows access to the complete results of previous last ranking. Note this uses a competetive ranking approach, which is memory efficient, time efficient for not too many languages and provides contextual scoring of ngrams.

Version:

$Revision: 2 $ $Date: 2006-03-27 23:00:21 +0200 (Mo, 27 Mrz 2006) $ $Author: nestefan $

Author:

frank nestel, $Author: nestefan $

Nested Class Summary

static interface	NGramProfiles.Ranker
static interface	NGramProfiles.RankResult

Field Summary

static java.text.DecimalFormat	DF
static char	END_CHAR
static double	LOWSTATSAFETY
static java.lang.String	NOLANGNAME

Constructor Summary

NGramProfiles()

NGramProfiles(java.io.BufferedReader br)

NGramProfiles(int mode)

Method Summary

static char	charAt(java.lang.CharSequence cs, int pos)
static void	check(NGramProfiles.Ranker r, java.lang.CharSequence seq)
java.util.Set	getAllNGrams()
int	getProfileCount()
java.lang.String	getProfileName(int i)
NGramProfiles.Ranker	getRanker()
void	info()
protected void	init(java.io.BufferedReader br)
static boolean	isSeparator(char ch)
double	modeTrans(double x, int l)
NGramProfiles.RankResult	rank(NGramMetric metric, NGramProfile profile) Note this class returns a complete match result, for the sake of thread safety!
static java.lang.String	reverse(java.lang.CharSequence seq)
static char	sc(char c)

Methods inherited from class java.lang.Object

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

Field Detail

NOLANGNAME

public static final java.lang.String NOLANGNAME

See Also:

Constant Field Values

END_CHAR

public static final char END_CHAR

See Also:

Constant Field Values

DF

public static final java.text.DecimalFormat DF

LOWSTATSAFETY

public static final double LOWSTATSAFETY

See Also:

Constant Field Values

Constructor Detail

NGramProfiles

public NGramProfiles()
              throws java.io.IOException

Throws:

java.io.IOException

NGramProfiles

public NGramProfiles(int mode)
              throws java.io.IOException

Throws:

java.io.IOException

NGramProfiles

public NGramProfiles(java.io.BufferedReader br)
              throws java.io.IOException

Throws:

java.io.IOException

Method Detail

init

protected void init(java.io.BufferedReader br)
             throws java.io.IOException

Throws:

java.io.IOException

info

public void info()

check

public static void check(NGramProfiles.Ranker r,
                         java.lang.CharSequence seq)

getRanker

public NGramProfiles.Ranker getRanker()

modeTrans

public double modeTrans(double x,
                        int l)

getProfileName

public java.lang.String getProfileName(int i)

isSeparator

public static boolean isSeparator(char ch)

reverse

public static java.lang.String reverse(java.lang.CharSequence seq)

charAt

public static final char charAt(java.lang.CharSequence cs,
                                int pos)

sc

public static char sc(char c)

rank

public NGramProfiles.RankResult rank(NGramMetric metric,
                                     NGramProfile profile)

Note this class returns a complete match result, for the sake of thread safety!

getProfileCount

public int getProfileCount()

getAllNGrams

public java.util.Set getAllNGrams()