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Maximum-Length Comparison Method Of Automatic Word Segmentation

for Myanmar Text

Htet Myet Lynn, Pankoo Kim, Junho Choi, Jenogin Kim

CAIPT2015 – June 23, 2015

What is NLP?

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NaturalLanguage

Why Word Segmentation?

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U n i v e r s i t y L O G O

Contents

1 Nature of Myanmar Script

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2 Maximum-Length Comparsion Model

3 Experimental Result & Future Study

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Nature Of Myanmar Script

Nature of Myanmar Script

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Consonants

Digits

Nature of Myanmar Script

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Consonants

Basic Vowels

Nature of Myanmar Script

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Consonants

Consonant Combination Symbols

Nature of Myanmar Script

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Consonants

Devowelization Consonants

Nature of Myanmar Script

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Lack of standard rules for distinct word delimiter (white-space) between words become challenge

He is having a meal with three nephews.

He is nephew three persons with meal eating

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Maximum-Length Comparison Model

1 Preprocessing Sentences

2 Detect First Character (Consonant)

3 Candidates Detection & Extraction

4 Maximum-Length Comparison

Preprocessing Sentences

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Input Text

Preprocessing

Detect Consonant

Data DictionaryCadidate

ExtractionCandidates.txt

Maximum Length Comparison

Output Result

Preprocessing Sentences

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He joins the army.Input:

Preprocessing:

Each and every news media uses different style of writing and positioning white-space in a sentence

Remove punctuation marks, white-spaces

Detect First Character (Consonant)

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Input Text

Preprocessing

Detect Consonant

Data DictionaryCadidate

ExtractionCandidates.txt

Maximum Length Comparison

Output Result

Detect First Character (Consonant)

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Preprocessing:

1st Character Detection:

He joins the army.

He

Get Consonant:

Candidates Detection & Extraction

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Input Text

Preprocessing

Detect Consonant

Data DictionaryCadidate

ExtractionCandidates.txt

Maximum Length Comparison

Output Result

Candidates Detection & Extraction

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Consonant:

Data Dictionary

Candidates.txt

Let,Length of word_#1 = 3;Length of word_#2 = 5;..Length of word_#10= 20;

Truncate the input_sentence with the value of word_#n;

If (word_#n == truncate_word) {

mark_as_candidate;

} else{ ignore();}

1.10.

Maximum-Length Comparison

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Input Text

Preprocessing

Detect Consonant

Data DictionaryCadidate

ExtractionCandidates.txt

Maximum Length Comparison

Output Result

Maximum-Length Comparison

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1.10.

Candidates.txt

IfLength of candidate_#1 = 3;Length of candidate_#10= 20;

//Get the word with longest value among candidatesbest_candidate = candidate_#10;final_word = best_candidate;

Truncate the value of best_candidate from input;

Input: He joins the army.

New input:

Maximum-Length Comparison Model

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Input Text

Preprocessing

Detect Consonant

Data DictionaryCadidate

ExtractionCandidates.txt

Maximum Length Comparison

Output Result

While (length_input_sent <= 0)

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Experimental Result & Future Study

Experimental Result

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Future Study

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30147 sentences including a total of (23,454 words) have been tested

21577 words out of 23,454 words are aright (92%)

Error can be occurred according to the shortage of data dictionary, technical terms and new derived words

Increase the value of data dictionary

Understand the meaning of segmented word semantically for further NLP tasks

! !!

!!! !?

Do You Have any Questions?

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