The Architecture of SANTI-Morf’s Guesser Module

Abstract

SANTI-morf is a new morphological annotation system for Indonesian, implemented using Nooj [1, 2]. SANTI-morf is designed using multi-module pipeline architecture. The modules are the Annotator, the Improver, the Disambiguator, and the Guesser. The Guesser, as its name suggests, provides best guesses for words the Annotator fails to analyze. Due to the complexities of Indonesian morphology, multiple layers of rules are created to guess the morphological structures of unknown polymorphemic and monomorphemic words. These rules are incorporated into five morphological grammars, which are applied in a pipeline based on their priorities. In each grammar, there are two layers of rules. The first layer rules are prioritized, thus ending with a +UNAMB operator. The second layer rules only apply when the first layer rules fail to find any match. Thus, the rules are constructed without a +UNAMB operator. Reflecting on the complexity of this experiment, I therefore suggest an alternative to set priorities, whose method I simulate in this paper. I argue that using the proposed alternative, NooJ users can organize rules with multiple priorities in just one grammar file.