Machine Learning of Phonologically Conditioned Noun Declensions For Tamil Morphological Generators

TL;DR

This paper demonstrates that machine learning models can effectively learn morphophonemic rules for Tamil noun declensions, improving natural language generation without explicit rule specification.

Contribution

It introduces supervised machine learning approaches to automatically learn sandhi rules for Tamil noun declensions, bypassing manual rule encoding.

Findings

Decision trees and Bayesian algorithms perform well on noun declension tasks.

Machine learning models can generate correct word forms without explicit rule descriptions.

Supervised learning effectively captures morphophonemic changes in Tamil morphology.

Abstract

This paper presents machine learning solutions to a practical problem of Natural Language Generation (NLG), particularly the word formation in agglutinative languages like Tamil, in a supervised manner. The morphological generator is an important component of Natural Language Processing in Artificial Intelligence. It generates word forms given a root and affixes. The morphophonemic changes like addition, deletion, alternation etc., occur when two or more morphemes or words joined together. The Sandhi rules should be explicitly specified in the rule based morphological analyzers and generators. In machine learning framework, these rules can be learned automatically by the system from the training samples and subsequently be applied for new inputs. In this paper we proposed the machine learning models which learn the morphophonemic rules for noun declensions from the given training data. These models are trained to learn sandhi rules using various learning algorithms and the performance of those algorithms are presented. From this we conclude that machine learning of morphological processing such as word form generation can be successfully learned in a supervised manner, without explicit description of rules. The performance of Decision trees and Bayesian machine learning algorithms on noun declensions are discussed.