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MLphone (Python, PHP) is a phonetic algorithm for indexing Malayalam words by their pronounciation, like Metaphone for English. The algorithm generates three Romanized phonetic keys (hashes) of varying phonetic proximities for a given Malayalam word.

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MLphone (Python, PHP)

MLphone is a phonetic algorithm for indexing Malayalam words by their pronunciation, like Metaphone for English. The algorithm generates three Romanized phonetic keys (hashes) of varying phonetic affinities for a given Malayalam word.

Full documentation: http://nadh.in/code/mlphone

Licensed under GNU GPL v2 license.

Intro

MLphone is a phonetic algorithm for indexing Malayalam words by their pronunciation, like Metaphone for English. The algorithm generates three Romanized phonetic keys (hashes) of varying phonetic affinities for a given Malayalam word.

The algorithm takes into account the context sensitivity of sounds, syntactic and phonetic gemination, compounding, modifiers, and other known exceptions to produce Romanized phonetic hashes of increasing phonetic affinity that are very faithful to the pronunciation of the original Malayalam word.

  • key0 = a broad phonetic hash comparable to a Metaphone key that doesn't account for hard sounds (ഷ, ണ..) or phonetic modifiers
  • <li>key1 =	is a slightly more inclusive hash that accounts for hard sounds</li>
    
    <li>key2 =	highly inclusive and narrow hash that accounts for hard sounds
    		and phonetic modifiers</li>
    

MLphone was created to aid spelling tolerant Malayalam word search, but may be useful in tasks like spell checking, word suggestion etc.

Examples

Word key0 key1 key2 Transliteration Metaphone
നീലക്കുയില്‍ NLKYL NLKYL N4LK25Y4L Neelakkuyil‍ NLKYL
മൃഗം MRK3 MRK3 MRK3 Mrugam MRKM
മ്രിഗം MRK3 MRK3 MRK3 Mrigam MRKM
ഉത്സവം U0SV3 U0SV3 U0SV3 Uthsavam U0SFM
ഉല്‍സവം U0SV3 U0SV3 U0SV3 Ul‍savam ULSFM
വാഹനം VHN3 VHN3 VHN3 Vaahanam FHNM
വിഹനനം VHNN3 VHNN3 V4HNN3 Vihananam FHNNM
രാഷ്ട്രീയം RSTRY3 RS1TRY3 RS1TR4Y3 Raashtreeyam RXTRYM
കണ്ണകി KNK KNK KN2K4 Kannaki KNK
കന്യക KNYK KNYK KNYK Kanyaka KNYK
മനം MN3 MN3 MN3 Manam MNM
മണം MN3 MN13 MN13 Manam MNM
വിഭക്ത്യാഭാസം VBK0YBS3 VBK0YBS3 V4BK0YBS3 Vibhakthyaabhaasam FBHK0YBHSM
വലയം VLY3 VLY3 VLY3 Valayam FLYM
വളയം VLY3 VL1Y3 VL1Y3 Valayam FLYM
രഥം R03 R03 R03 Ratham R0M
രദം R03 R03 R03 Radam RTM
രത്തം R03 R03 R03 Rattham RTM
രധം R03 R03 R03 Radham RTHM

Usage

The algorithm's available in Python and PHP

Python

from mlphone import MLphone

converter = MLphone()
keys = converter.compute(ml_str)

PHP

<?php
	require 'mlphone.php';

	$keys = MLphone::compute($ml_str);
?>

About

MLphone (Python, PHP) is a phonetic algorithm for indexing Malayalam words by their pronounciation, like Metaphone for English. The algorithm generates three Romanized phonetic keys (hashes) of varying phonetic proximities for a given Malayalam word.

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