Challenges in Rule Based Machine Translation from Marathi to English

Abstract

Machine translation is being carried out by the researchers from quite a long time. However, it is still a dream to materialize flawless Machine Translator and the small numbers of researchers has focussed at translating Marathi Text to English. Perfect Machine Translation Systems have not yet been fully built because the fact that languages differ syntactically as well as morphologically. Majority of the researchers have opted for Statistical Machine translation whereas in this paper we have addressed the challenges of Rule based Machine Translation. The paper describes the major divergences observed in language Marathi and English and many challenges encountered while attempting to build machine translation system form Marathi to English using rule based approach. As there are exceptions to the rules and limit to the feasibility of maintaining knowledgebase, the practical machine translation from Marathi to English is a complex task.

Inflection rules for Marathi to English in rule based machine translation

“…Postpositions in Marathi occur as prepositions in English [16]. Translating Marathi sentence to English sentence requires conversion of postposition to preposition [17]. For example: एक मार्ग पु ण्यावरून र्ोव्याला जातो  One road goes from Pune to Goa.…”

“…All this indicates that inflection for verbs in English requires more consideration than simply adding the affixes -s, -ing, and -ed. Conjugation of verb by combination with parts of other verbs e.g., auxiliary verb, plays vital role in translation of Marathi to English sentence [17]. Verb tense is decided according to action in a sentence is happening e.g., in the present, future, or past.…”