The results of the experiments shows that SVMTool outperforms TnT and Ma圎nt for overall accuracy (99.23% for SVMTool, 94% for TnT and 96% for Maxent) and tagging unknown words accuracy (96.78% for SVMTool, 67% for TnT and 86.23% for Ma圎nt ). Modifications has been done to TnT to fit in prefix and circumfix features. In order to train and test such methods in tagging Malay language, efforts has been taken to annotate the Malay corpus in health domain. This paper aims to present the evaluation of TnT using HMM, Ma圎nt using ME and SVMTool using SVM.
Malay annotated corpus is not freely available, so there is no publication report on the comparison of the performance of POS tagging using Hidden Markov Model (HMM), Maximum Entropy (ME) and Support Vector Machine (SVM), especially to look into the effect of Malay morphology for tagging unknown words. Affixation to a root word is the most common morphological processes used to derive a new word for other meaning that would affect the change in their part of speech (POS). Malay language is an agglutinative language which rich morphology.
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